Actual source code: petscsys.h
petsc-3.12.4 2020-02-04
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      1: /*
      2:    This is the main PETSc include file (for C and C++).  It is included by all
      3:    other PETSc include files, so it almost never has to be specifically included.
      4: */
      5: #if !defined(PETSCSYS_H)
      6: #define PETSCSYS_H
      7: /* ========================================================================== */
      8: /*
      9:    petscconf.h is contained in ${PETSC_ARCH}/include/petscconf.h it is
     10:    found automatically by the compiler due to the -I${PETSC_DIR}/${PETSC_ARCH}/include.
     11:    For --prefix installs the ${PETSC_ARCH}/ does not exist and petscconf.h is in the same
     12:    directory as the other PETSc include files.
     13: */
     14: #include <petscconf.h>
     15: #include <petscfix.h>

     17: #if defined(PETSC_DESIRE_FEATURE_TEST_MACROS)
     18: /*
     19:    Feature test macros must be included before headers defined by IEEE Std 1003.1-2001
     20:    We only turn these in PETSc source files that require them by setting PETSC_DESIRE_FEATURE_TEST_MACROS
     21: */
     22: #  if defined(PETSC__POSIX_C_SOURCE_200112L) && !defined(_POSIX_C_SOURCE)
     23: #    define _POSIX_C_SOURCE 200112L
     24: #  endif
     25: #  if defined(PETSC__BSD_SOURCE) && !defined(_BSD_SOURCE)
     26: #    define _BSD_SOURCE
     27: #  endif
     28: #  if defined(PETSC__DEFAULT_SOURCE) && !defined(_DEFAULT_SOURCE)
     29: #    define _DEFAULT_SOURCE
     30: #  endif
     31: #  if defined(PETSC__GNU_SOURCE) && !defined(_GNU_SOURCE)
     32: #    define _GNU_SOURCE
     33: #  endif
     34: #endif

     36:  #include <petscsystypes.h>

     38: /* ========================================================================== */
     39: /*
     40:    This facilitates using the C version of PETSc from C++ and the C++ version from C.
     41: */
     42: #if defined(__cplusplus)
     43: #  define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_CXX
     44: #else
     45: #  define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_C
     46: #endif

     48: /* ========================================================================== */
     49: /*
     50:    Since PETSc manages its own extern "C" handling users should never include PETSc include
     51:    files within extern "C". This will generate a compiler error if a user does put the include
     52:    file within an extern "C".
     53: */
     54: #if defined(__cplusplus)
     55: void assert_never_put_petsc_headers_inside_an_extern_c(int); void assert_never_put_petsc_headers_inside_an_extern_c(double);
     56: #endif

     58: #if defined(__cplusplus)
     59: #  define PETSC_RESTRICT PETSC_CXX_RESTRICT
     60: #else
     61: #  define PETSC_RESTRICT PETSC_C_RESTRICT
     62: #endif

     64: #if defined(__cplusplus)
     65: #  define PETSC_INLINE PETSC_CXX_INLINE
     66: #else
     67: #  define PETSC_INLINE PETSC_C_INLINE
     68: #endif

     70: #define PETSC_STATIC_INLINE static PETSC_INLINE

     72: #if defined(_WIN32) && defined(PETSC_USE_SHARED_LIBRARIES) /* For Win32 shared libraries */
     73: #  define  __declspec(dllexport)
     74: #  define PETSC_DLLIMPORT __declspec(dllimport)
     75: #  define PETSC_VISIBILITY_INTERNAL
     76: #elif defined(PETSC_USE_VISIBILITY_CXX) && defined(__cplusplus)
     77: #  define  __attribute__((visibility ("default")))
     78: #  define PETSC_DLLIMPORT __attribute__((visibility ("default")))
     79: #  define PETSC_VISIBILITY_INTERNAL __attribute__((visibility ("hidden")))
     80: #elif defined(PETSC_USE_VISIBILITY_C) && !defined(__cplusplus)
     81: #  define  __attribute__((visibility ("default")))
     82: #  define PETSC_DLLIMPORT __attribute__((visibility ("default")))
     83: #  define PETSC_VISIBILITY_INTERNAL __attribute__((visibility ("hidden")))
     84: #else
     85: #  define
     86: #  define PETSC_DLLIMPORT
     87: #  define PETSC_VISIBILITY_INTERNAL
     88: #endif

     90: #if defined(petsc_EXPORTS)      /* CMake defines this when building the shared library */
     91: #  define PETSC_VISIBILITY_PUBLIC
     92: #else  /* Win32 users need this to import symbols from petsc.dll */
     93: #  define PETSC_VISIBILITY_PUBLIC PETSC_DLLIMPORT
     94: #endif

     96: /*
     97:     Functions tagged with PETSC_EXTERN in the header files are
     98:   always defined as extern "C" when compiled with C++ so they may be
     99:   used from C and are always visible in the shared libraries
    100: */
    101: #if defined(__cplusplus)
    102: #  define PETSC_EXTERN extern "C" PETSC_VISIBILITY_PUBLIC
    103: #  define PETSC_EXTERN_TYPEDEF extern "C"
    104: #  define PETSC_INTERN extern "C" PETSC_VISIBILITY_INTERNAL
    105: #else
    106: #  define PETSC_EXTERN extern PETSC_VISIBILITY_PUBLIC
    107: #  define PETSC_EXTERN_TYPEDEF
    108: #  define PETSC_INTERN extern PETSC_VISIBILITY_INTERNAL
    109: #endif

    111:  #include <petscversion.h>
    112: #define PETSC_AUTHOR_INFO  "       The PETSc Team\n    petsc-maint@mcs.anl.gov\n https://www.mcs.anl.gov/petsc/\n"

    114: /* ========================================================================== */

    116: /*
    117:     Defines the interface to MPI allowing the use of all MPI functions.

    119:     PETSc does not use the C++ binding of MPI at ALL. The following flag
    120:     makes sure the C++ bindings are not included. The C++ bindings REQUIRE
    121:     putting mpi.h before ANY C++ include files, we cannot control this
    122:     with all PETSc users. Users who want to use the MPI C++ bindings can include
    123:     mpicxx.h directly in their code
    124: */
    125: #if !defined(MPICH_SKIP_MPICXX)
    126: #  define MPICH_SKIP_MPICXX 1
    127: #endif
    128: #if !defined(OMPI_SKIP_MPICXX)
    129: #  define OMPI_SKIP_MPICXX 1
    130: #endif
    131: #if defined(PETSC_HAVE_MPIUNI)
    132: #  include <petsc/mpiuni/mpi.h>
    133: #else
    134: #  include <mpi.h>
    135: #endif

    137: /*
    138:    Perform various sanity checks that the correct mpi.h is being included at compile time.
    139:    This usually happens because
    140:       * either an unexpected mpi.h is in the default compiler path (i.e. in /usr/include) or
    141:       * an extra include path -I/something (which contains the unexpected mpi.h) is being passed to the compiler
    142: */
    143: #if defined(PETSC_HAVE_MPIUNI)
    144: #  if !defined(MPIUNI_H)
    145: #    error "PETSc was configured with --with-mpi=0 but now appears to be compiling using a different mpi.h"
    146: #  endif
    147: #elif defined(PETSC_HAVE_I_MPI_NUMVERSION)
    148: #  if !defined(I_MPI_NUMVERSION)
    149: #    error "PETSc was configured with I_MPI but now appears to be compiling using a non-I_MPI mpi.h"
    150: #  elif I_MPI_NUMVERSION != PETSC_HAVE_I_MPI_NUMVERSION
    151: #    error "PETSc was configured with one I_MPI mpi.h version but now appears to be compiling using a different I_MPI mpi.h version"
    152: #  endif
    153: #elif defined(PETSC_HAVE_MVAPICH2_NUMVERSION)
    154: #  if !defined(MVAPICH2_NUMVERSION)
    155: #    error "PETSc was configured with MVAPICH2 but now appears to be compiling using a non-MVAPICH2 mpi.h"
    156: #  elif MVAPICH2_NUMVERSION != PETSC_HAVE_MVAPICH2_NUMVERSION
    157: #    error "PETSc was configured with one MVAPICH2 mpi.h version but now appears to be compiling using a different MVAPICH2 mpi.h version"
    158: #  endif
    159: #elif defined(PETSC_HAVE_MPICH_NUMVERSION)
    160: #  if !defined(MPICH_NUMVERSION) || defined(MVAPICH2_NUMVERSION) || defined(I_MPI_NUMVERSION)
    161: #    error "PETSc was configured with MPICH but now appears to be compiling using a non-MPICH mpi.h"
    162: #  elif (MPICH_NUMVERSION/100000 != PETSC_HAVE_MPICH_NUMVERSION/100000) || (MPICH_NUMVERSION%100000/1000 < PETSC_HAVE_MPICH_NUMVERSION%100000/1000)
    163: #    error "PETSc was configured with one MPICH mpi.h version but now appears to be compiling using a different MPICH mpi.h version"
    164: #  endif
    165: #elif defined(PETSC_HAVE_OMPI_MAJOR_VERSION)
    166: #  if !defined(OMPI_MAJOR_VERSION)
    167: #    error "PETSc was configured with OpenMPI but now appears to be compiling using a non-OpenMPI mpi.h"
    168: #  elif (OMPI_MAJOR_VERSION != PETSC_HAVE_OMPI_MAJOR_VERSION) || (OMPI_MINOR_VERSION != PETSC_HAVE_OMPI_MINOR_VERSION) || (OMPI_RELEASE_VERSION < PETSC_HAVE_OMPI_RELEASE_VERSION)
    169: #    error "PETSc was configured with one OpenMPI mpi.h version but now appears to be compiling using a different OpenMPI mpi.h version"
    170: #  endif
    171: #elif defined(OMPI_MAJOR_VERSION) || defined(MPICH_NUMVERSION)
    172: #  error "PETSc was configured with undetermined MPI - but now appears to be compiling using either of OpenMPI or a MPICH variant"
    173: #endif

    175: /*
    176:     Need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler
    177:     see the top of mpicxx.h in the MPICH2 distribution.
    178: */
    179: #include <stdio.h>

    181: /* MSMPI on 32bit windows requires this yukky hack - that breaks MPI standard compliance */
    182: #if !defined(MPIAPI)
    183: #define MPIAPI
    184: #endif

    186: /*
    187:    Support for Clang (>=3.2) matching type tag arguments with void* buffer types.
    188:    This allows the compiler to detect cases where the MPI datatype argument passed to a MPI routine
    189:    does not match the actual type of the argument being passed in
    190: */
    191: #if defined(__has_attribute) && defined(works_with_const_which_is_not_true)
    192: #  if __has_attribute(argument_with_type_tag) && __has_attribute(pointer_with_type_tag) && __has_attribute(type_tag_for_datatype)
    193: #    define PetscAttrMPIPointerWithType(bufno,typeno) __attribute__((pointer_with_type_tag(MPI,bufno,typeno)))
    194: #    define PetscAttrMPITypeTag(type)                 __attribute__((type_tag_for_datatype(MPI,type)))
    195: #    define PetscAttrMPITypeTagLayoutCompatible(type) __attribute__((type_tag_for_datatype(MPI,type,layout_compatible)))
    196: #  endif
    197: #endif
    198: #if !defined(PetscAttrMPIPointerWithType)
    199: #  define PetscAttrMPIPointerWithType(bufno,typeno)
    200: #  define PetscAttrMPITypeTag(type)
    201: #  define PetscAttrMPITypeTagLayoutCompatible(type)
    202: #endif

    204: PETSC_EXTERN MPI_Datatype MPIU_ENUM PetscAttrMPITypeTag(PetscEnum);
    205: PETSC_EXTERN MPI_Datatype MPIU_BOOL PetscAttrMPITypeTag(PetscBool);

    207: /*MC
    208:    MPIU_INT - MPI datatype corresponding to PetscInt

    210:    Notes:
    211:    In MPI calls that require an MPI datatype that matches a PetscInt or array of PetscInt values, pass this value.

    213:    Level: beginner

    215: .seealso: PetscReal, PetscScalar, PetscComplex, PetscInt, MPIU_REAL, MPIU_SCALAR, MPIU_COMPLEX
    216: M*/

    218: #if defined(PETSC_HAVE_STDINT_H) && defined(PETSC_HAVE_INTTYPES_H) && defined(PETSC_HAVE_MPI_INT64_T) /* MPI_INT64_T is not guaranteed to be a macro */
    219: #  define MPIU_INT64 MPI_INT64_T
    220: #  define PetscInt64_FMT PRId64
    221: #elif (PETSC_SIZEOF_LONG_LONG == 8)
    222: #  define MPIU_INT64 MPI_LONG_LONG_INT
    223: #  define PetscInt64_FMT "lld"
    224: #elif defined(PETSC_HAVE___INT64)
    225: #  define MPIU_INT64 MPI_INT64_T
    226: #  define PetscInt64_FMT "ld"
    227: #else
    228: #  error "cannot determine PetscInt64 type"
    229: #endif

    231: PETSC_EXTERN MPI_Datatype MPIU_FORTRANADDR;

    233: #if defined(PETSC_USE_64BIT_INDICES)
    234: #  define MPIU_INT MPIU_INT64
    235: #  define PetscInt_FMT PetscInt64_FMT
    236: #else
    237: #  define MPIU_INT MPI_INT
    238: #  define PetscInt_FMT "d"
    239: #endif

    241: /*
    242:     For the rare cases when one needs to send a size_t object with MPI
    243: */
    244: PETSC_EXTERN MPI_Datatype MPIU_SIZE_T;

    246: /*
    247:       You can use PETSC_STDOUT as a replacement of stdout. You can also change
    248:     the value of PETSC_STDOUT to redirect all standard output elsewhere
    249: */
    250: PETSC_EXTERN FILE* PETSC_STDOUT;

    252: /*
    253:       You can use PETSC_STDERR as a replacement of stderr. You can also change
    254:     the value of PETSC_STDERR to redirect all standard error elsewhere
    255: */
    256: PETSC_EXTERN FILE* PETSC_STDERR;

    258: /*MC
    259:     PetscUnlikely - hints the compiler that the given condition is usually FALSE

    261:     Synopsis:
    262:     #include <petscsys.h>
    263:     PetscBool  PetscUnlikely(PetscBool  cond)

    265:     Not Collective

    267:     Input Parameters:
    268: .   cond - condition or expression

    270:     Notes:
    271:     This returns the same truth value, it is only a hint to compilers that the resulting
    272:     branch is unlikely.

    274:     Level: advanced

    276: .seealso: PetscLikely(), CHKERRQ
    277: M*/

    279: /*MC
    280:     PetscLikely - hints the compiler that the given condition is usually TRUE

    282:     Synopsis:
    283:     #include <petscsys.h>
    284:     PetscBool  PetscLikely(PetscBool  cond)

    286:     Not Collective

    288:     Input Parameters:
    289: .   cond - condition or expression

    291:     Notes:
    292:     This returns the same truth value, it is only a hint to compilers that the resulting
    293:     branch is likely.

    295:     Level: advanced

    297: .seealso: PetscUnlikely()
    298: M*/
    299: #if defined(PETSC_HAVE_BUILTIN_EXPECT)
    300: #  define PetscUnlikely(cond)   __builtin_expect(!!(cond),0)
    301: #  define PetscLikely(cond)     __builtin_expect(!!(cond),1)
    302: #else
    303: #  define PetscUnlikely(cond)   (cond)
    304: #  define PetscLikely(cond)     (cond)
    305: #endif

    307: /*
    308:     Declare extern C stuff after including external header files
    309: */

    311: PETSC_EXTERN const char *const PetscBools[];

    313: /*
    314:     Defines elementary mathematics functions and constants.
    315: */
    316:  #include <petscmath.h>

    318: PETSC_EXTERN const char *const PetscCopyModes[];

    320: /*MC
    321:     PETSC_IGNORE - same as NULL, means PETSc will ignore this argument

    323:    Level: beginner

    325:    Note:
    326:    Accepted by many PETSc functions to not set a parameter and instead use
    327:           some default

    329:    Fortran Notes:
    330:    This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER,
    331:           PETSC_NULL_DOUBLE_PRECISION etc

    333: .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_DETERMINE

    335: M*/
    336: #define PETSC_IGNORE NULL

    338: /* This is deprecated */
    339: #define PETSC_NULL NULL

    341: /*MC
    342:     PETSC_DECIDE - standard way of passing in integer or floating point parameter
    343:        where you wish PETSc to use the default.

    345:    Level: beginner

    347: .seealso: PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE

    349: M*/
    350: #define PETSC_DECIDE -1

    352: /*MC
    353:     PETSC_DETERMINE - standard way of passing in integer or floating point parameter
    354:        where you wish PETSc to compute the required value.

    356:    Level: beginner

    358:    Developer Note:
    359:    I would like to use const PetscInt PETSC_DETERMINE = PETSC_DECIDE; but for
    360:      some reason this is not allowed by the standard even though PETSC_DECIDE is a constant value.

    362: .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, VecSetSizes()

    364: M*/
    365: #define PETSC_DETERMINE PETSC_DECIDE

    367: /*MC
    368:     PETSC_DEFAULT - standard way of passing in integer or floating point parameter
    369:        where you wish PETSc to use the default.

    371:    Level: beginner

    373:    Fortran Notes:
    374:    You need to use PETSC_DEFAULT_INTEGER or PETSC_DEFAULT_REAL.

    376: .seealso: PETSC_DECIDE, PETSC_IGNORE, PETSC_DETERMINE

    378: M*/
    379: #define PETSC_DEFAULT -2

    381: /*MC
    382:     PETSC_COMM_WORLD - the equivalent of the MPI_COMM_WORLD communicator which represents
    383:            all the processes that PETSc knows about.

    385:    Level: beginner

    387:    Notes:
    388:    By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to
    389:           run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller)
    390:           communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling
    391:           PetscInitialize(), but after MPI_Init() has been called.

    393:           The value of PETSC_COMM_WORLD should never be USED/accessed before PetscInitialize()
    394:           is called because it may not have a valid value yet.

    396: .seealso: PETSC_COMM_SELF

    398: M*/
    399: PETSC_EXTERN MPI_Comm PETSC_COMM_WORLD;

    401: /*MC
    402:     PETSC_COMM_SELF - This is always MPI_COMM_SELF

    404:    Level: beginner

    406:    Notes:
    407:    Do not USE/access or set this variable before PetscInitialize() has been called.

    409: .seealso: PETSC_COMM_WORLD

    411: M*/
    412: #define PETSC_COMM_SELF MPI_COMM_SELF

    414: PETSC_EXTERN PetscBool PetscBeganMPI;
    415: PETSC_EXTERN PetscBool PetscInitializeCalled;
    416: PETSC_EXTERN PetscBool PetscFinalizeCalled;
    417: PETSC_EXTERN PetscBool PetscViennaCLSynchronize;
    418: PETSC_EXTERN PetscBool PetscCUDASynchronize;

    420: PETSC_EXTERN PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm));
    421: PETSC_EXTERN PetscErrorCode PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*);
    422: PETSC_EXTERN PetscErrorCode PetscCommDestroy(MPI_Comm*);

    424: #if defined(PETSC_HAVE_CUDA)
    425: PETSC_EXTERN PetscErrorCode PetscCUDAInitialize(MPI_Comm);
    426: #endif

    428: /*MC
    429:    PetscMalloc - Allocates memory, One should use PetscNew(), PetscMalloc1() or PetscCalloc1() usually instead of this

    431:    Synopsis:
    432:     #include <petscsys.h>
    433:    PetscErrorCode PetscMalloc(size_t m,void **result)

    435:    Not Collective

    437:    Input Parameter:
    438: .  m - number of bytes to allocate

    440:    Output Parameter:
    441: .  result - memory allocated

    443:    Level: beginner

    445:    Notes:
    446:    Memory is always allocated at least double aligned

    448:    It is safe to allocate size 0 and pass the resulting pointer (which may or may not be NULL) to PetscFree().

    450: .seealso: PetscFree(), PetscNew()

    452: M*/
    453: #define PetscMalloc(a,b)  ((*PetscTrMalloc)((a),PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b)))

    455: /*MC
    456:    PetscRealloc - Rellocates memory

    458:    Synopsis:
    459:     #include <petscsys.h>
    460:    PetscErrorCode PetscRealloc(size_t m,void **result)

    462:    Not Collective

    464:    Input Parameters:
    465: +  m - number of bytes to allocate
    466: -  result - previous memory

    468:    Output Parameter:
    469: .  result - new memory allocated

    471:    Level: developer

    473:    Notes:
    474:    Memory is always allocated at least double aligned

    476: .seealso: PetscMalloc(), PetscFree(), PetscNew()

    478: M*/
    479: #define PetscRealloc(a,b)  ((*PetscTrRealloc)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b)))

    481: /*MC
    482:    PetscAddrAlign - Rounds up an address to PETSC_MEMALIGN alignment

    484:    Synopsis:
    485:     #include <petscsys.h>
    486:    void *PetscAddrAlign(void *addr)

    488:    Not Collective

    490:    Input Parameters:
    491: .  addr - address to align (any pointer type)

    493:    Level: developer

    495: .seealso: PetscMallocAlign()

    497: M*/
    498: #define PetscAddrAlign(a) (void*)((((PETSC_UINTPTR_T)(a))+(PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1))

    500: /*MC
    501:    PetscMalloc1 - Allocates an array of memory aligned to PETSC_MEMALIGN

    503:    Synopsis:
    504:     #include <petscsys.h>
    505:    PetscErrorCode PetscMalloc1(size_t m1,type **r1)

    507:    Not Collective

    509:    Input Parameter:
    510: .  m1 - number of elements to allocate  (may be zero)

    512:    Output Parameter:
    513: .  r1 - memory allocated

    515:    Note:
    516:    This uses the sizeof() of the memory type requested to determine the total memory to be allocated, therefore you should not
    517:          multiply the number of elements requested by the sizeof() the type. For example use
    518: $  PetscInt *id;
    519: $  PetscMalloc1(10,&id);
    520:         not
    521: $  PetscInt *id;
    522: $  PetscMalloc1(10*sizeof(PetscInt),&id);

    524:         Does not zero the memory allocated, use PetscCalloc1() to obtain memory that has been zeroed.

    526:    Level: beginner

    528: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2()

    530: M*/
    531: #define PetscMalloc1(m1,r1) PetscMallocA(1,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1))

    533: /*MC
    534:    PetscCalloc1 - Allocates a cleared (zeroed) array of memory aligned to PETSC_MEMALIGN

    536:    Synopsis:
    537:     #include <petscsys.h>
    538:    PetscErrorCode PetscCalloc1(size_t m1,type **r1)

    540:    Not Collective

    542:    Input Parameter:
    543: .  m1 - number of elements to allocate in 1st chunk  (may be zero)

    545:    Output Parameter:
    546: .  r1 - memory allocated

    548:    Notes:
    549:    See PetsMalloc1() for more details on usage.

    551:    Level: beginner

    553: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2()

    555: M*/
    556: #define PetscCalloc1(m1,r1) PetscMallocA(1,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1))

    558: /*MC
    559:    PetscMalloc2 - Allocates 2 arrays of memory both aligned to PETSC_MEMALIGN

    561:    Synopsis:
    562:     #include <petscsys.h>
    563:    PetscErrorCode PetscMalloc2(size_t m1,type **r1,size_t m2,type **r2)

    565:    Not Collective

    567:    Input Parameter:
    568: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    569: -  m2 - number of elements to allocate in 2nd chunk  (may be zero)

    571:    Output Parameter:
    572: +  r1 - memory allocated in first chunk
    573: -  r2 - memory allocated in second chunk

    575:    Level: developer

    577: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2()

    579: M*/
    580: #define PetscMalloc2(m1,r1,m2,r2) PetscMallocA(2,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2))

    582: /*MC
    583:    PetscCalloc2 - Allocates 2 cleared (zeroed) arrays of memory both aligned to PETSC_MEMALIGN

    585:    Synopsis:
    586:     #include <petscsys.h>
    587:    PetscErrorCode PetscCalloc2(size_t m1,type **r1,size_t m2,type **r2)

    589:    Not Collective

    591:    Input Parameter:
    592: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    593: -  m2 - number of elements to allocate in 2nd chunk  (may be zero)

    595:    Output Parameter:
    596: +  r1 - memory allocated in first chunk
    597: -  r2 - memory allocated in second chunk

    599:    Level: developer

    601: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2()

    603: M*/
    604: #define PetscCalloc2(m1,r1,m2,r2) PetscMallocA(2,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2))

    606: /*MC
    607:    PetscMalloc3 - Allocates 3 arrays of memory, all aligned to PETSC_MEMALIGN

    609:    Synopsis:
    610:     #include <petscsys.h>
    611:    PetscErrorCode PetscMalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)

    613:    Not Collective

    615:    Input Parameter:
    616: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    617: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    618: -  m3 - number of elements to allocate in 3rd chunk  (may be zero)

    620:    Output Parameter:
    621: +  r1 - memory allocated in first chunk
    622: .  r2 - memory allocated in second chunk
    623: -  r3 - memory allocated in third chunk

    625:    Level: developer

    627: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc3(), PetscFree3()

    629: M*/
    630: #define PetscMalloc3(m1,r1,m2,r2,m3,r3) PetscMallocA(3,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3))

    632: /*MC
    633:    PetscCalloc3 - Allocates 3 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN

    635:    Synopsis:
    636:     #include <petscsys.h>
    637:    PetscErrorCode PetscCalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)

    639:    Not Collective

    641:    Input Parameter:
    642: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    643: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    644: -  m3 - number of elements to allocate in 3rd chunk  (may be zero)

    646:    Output Parameter:
    647: +  r1 - memory allocated in first chunk
    648: .  r2 - memory allocated in second chunk
    649: -  r3 - memory allocated in third chunk

    651:    Level: developer

    653: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc2(), PetscMalloc3(), PetscFree3()

    655: M*/
    656: #define PetscCalloc3(m1,r1,m2,r2,m3,r3) PetscMallocA(3,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3))

    658: /*MC
    659:    PetscMalloc4 - Allocates 4 arrays of memory, all aligned to PETSC_MEMALIGN

    661:    Synopsis:
    662:     #include <petscsys.h>
    663:    PetscErrorCode PetscMalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)

    665:    Not Collective

    667:    Input Parameter:
    668: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    669: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    670: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    671: -  m4 - number of elements to allocate in 4th chunk  (may be zero)

    673:    Output Parameter:
    674: +  r1 - memory allocated in first chunk
    675: .  r2 - memory allocated in second chunk
    676: .  r3 - memory allocated in third chunk
    677: -  r4 - memory allocated in fourth chunk

    679:    Level: developer

    681: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4()

    683: M*/
    684: #define PetscMalloc4(m1,r1,m2,r2,m3,r3,m4,r4) PetscMallocA(4,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4))

    686: /*MC
    687:    PetscCalloc4 - Allocates 4 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN

    689:    Synopsis:
    690:     #include <petscsys.h>
    691:    PetscErrorCode PetscCalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)

    693:    Not Collective

    695:    Input Parameters:
    696: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    697: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    698: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    699: -  m4 - number of elements to allocate in 4th chunk  (may be zero)

    701:    Output Parameters:
    702: +  r1 - memory allocated in first chunk
    703: .  r2 - memory allocated in second chunk
    704: .  r3 - memory allocated in third chunk
    705: -  r4 - memory allocated in fourth chunk

    707:    Level: developer

    709: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4()

    711: M*/
    712: #define PetscCalloc4(m1,r1,m2,r2,m3,r3,m4,r4) PetscMallocA(4,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4))

    714: /*MC
    715:    PetscMalloc5 - Allocates 5 arrays of memory, all aligned to PETSC_MEMALIGN

    717:    Synopsis:
    718:     #include <petscsys.h>
    719:    PetscErrorCode PetscMalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5)

    721:    Not Collective

    723:    Input Parameters:
    724: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    725: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    726: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    727: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    728: -  m5 - number of elements to allocate in 5th chunk  (may be zero)

    730:    Output Parameters:
    731: +  r1 - memory allocated in first chunk
    732: .  r2 - memory allocated in second chunk
    733: .  r3 - memory allocated in third chunk
    734: .  r4 - memory allocated in fourth chunk
    735: -  r5 - memory allocated in fifth chunk

    737:    Level: developer

    739: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc5(), PetscFree5()

    741: M*/
    742: #define PetscMalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) PetscMallocA(5,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5))

    744: /*MC
    745:    PetscCalloc5 - Allocates 5 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN

    747:    Synopsis:
    748:     #include <petscsys.h>
    749:    PetscErrorCode PetscCalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5)

    751:    Not Collective

    753:    Input Parameters:
    754: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    755: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    756: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    757: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    758: -  m5 - number of elements to allocate in 5th chunk  (may be zero)

    760:    Output Parameters:
    761: +  r1 - memory allocated in first chunk
    762: .  r2 - memory allocated in second chunk
    763: .  r3 - memory allocated in third chunk
    764: .  r4 - memory allocated in fourth chunk
    765: -  r5 - memory allocated in fifth chunk

    767:    Level: developer

    769: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc5(), PetscFree5()

    771: M*/
    772: #define PetscCalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) PetscMallocA(5,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5))

    774: /*MC
    775:    PetscMalloc6 - Allocates 6 arrays of memory, all aligned to PETSC_MEMALIGN

    777:    Synopsis:
    778:     #include <petscsys.h>
    779:    PetscErrorCode PetscMalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6)

    781:    Not Collective

    783:    Input Parameters:
    784: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    785: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    786: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    787: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    788: .  m5 - number of elements to allocate in 5th chunk  (may be zero)
    789: -  m6 - number of elements to allocate in 6th chunk  (may be zero)

    791:    Output Parameteasr:
    792: +  r1 - memory allocated in first chunk
    793: .  r2 - memory allocated in second chunk
    794: .  r3 - memory allocated in third chunk
    795: .  r4 - memory allocated in fourth chunk
    796: .  r5 - memory allocated in fifth chunk
    797: -  r6 - memory allocated in sixth chunk

    799:    Level: developer

    801: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc6(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6()

    803: M*/
    804: #define PetscMalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) PetscMallocA(6,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5),(size_t)(m6)*sizeof(**(r6)),(r6))

    806: /*MC
    807:    PetscCalloc6 - Allocates 6 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN

    809:    Synopsis:
    810:     #include <petscsys.h>
    811:    PetscErrorCode PetscCalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6)

    813:    Not Collective

    815:    Input Parameters:
    816: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    817: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    818: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    819: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    820: .  m5 - number of elements to allocate in 5th chunk  (may be zero)
    821: -  m6 - number of elements to allocate in 6th chunk  (may be zero)

    823:    Output Parameters:
    824: +  r1 - memory allocated in first chunk
    825: .  r2 - memory allocated in second chunk
    826: .  r3 - memory allocated in third chunk
    827: .  r4 - memory allocated in fourth chunk
    828: .  r5 - memory allocated in fifth chunk
    829: -  r6 - memory allocated in sixth chunk

    831:    Level: developer

    833: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc6(), PetscFree6()

    835: M*/
    836: #define PetscCalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) PetscMallocA(6,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5),(size_t)(m6)*sizeof(**(r6)),(r6))

    838: /*MC
    839:    PetscMalloc7 - Allocates 7 arrays of memory, all aligned to PETSC_MEMALIGN

    841:    Synopsis:
    842:     #include <petscsys.h>
    843:    PetscErrorCode PetscMalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7)

    845:    Not Collective

    847:    Input Parameters:
    848: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    849: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    850: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    851: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    852: .  m5 - number of elements to allocate in 5th chunk  (may be zero)
    853: .  m6 - number of elements to allocate in 6th chunk  (may be zero)
    854: -  m7 - number of elements to allocate in 7th chunk  (may be zero)

    856:    Output Parameters:
    857: +  r1 - memory allocated in first chunk
    858: .  r2 - memory allocated in second chunk
    859: .  r3 - memory allocated in third chunk
    860: .  r4 - memory allocated in fourth chunk
    861: .  r5 - memory allocated in fifth chunk
    862: .  r6 - memory allocated in sixth chunk
    863: -  r7 - memory allocated in seventh chunk

    865:    Level: developer

    867: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc7(), PetscFree7()

    869: M*/
    870: #define PetscMalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) PetscMallocA(7,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5),(size_t)(m6)*sizeof(**(r6)),(r6),(size_t)(m7)*sizeof(**(r7)),(r7))

    872: /*MC
    873:    PetscCalloc7 - Allocates 7 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN

    875:    Synopsis:
    876:     #include <petscsys.h>
    877:    PetscErrorCode PetscCalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7)

    879:    Not Collective

    881:    Input Parameters:
    882: +  m1 - number of elements to allocate in 1st chunk  (may be zero)
    883: .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
    884: .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
    885: .  m4 - number of elements to allocate in 4th chunk  (may be zero)
    886: .  m5 - number of elements to allocate in 5th chunk  (may be zero)
    887: .  m6 - number of elements to allocate in 6th chunk  (may be zero)
    888: -  m7 - number of elements to allocate in 7th chunk  (may be zero)

    890:    Output Parameters:
    891: +  r1 - memory allocated in first chunk
    892: .  r2 - memory allocated in second chunk
    893: .  r3 - memory allocated in third chunk
    894: .  r4 - memory allocated in fourth chunk
    895: .  r5 - memory allocated in fifth chunk
    896: .  r6 - memory allocated in sixth chunk
    897: -  r7 - memory allocated in seventh chunk

    899:    Level: developer

    901: .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc7(), PetscFree7()

    903: M*/
    904: #define PetscCalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) PetscMallocA(7,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)(m1)*sizeof(**(r1)),(r1),(size_t)(m2)*sizeof(**(r2)),(r2),(size_t)(m3)*sizeof(**(r3)),(r3),(size_t)(m4)*sizeof(**(r4)),(r4),(size_t)(m5)*sizeof(**(r5)),(r5),(size_t)(m6)*sizeof(**(r6)),(r6),(size_t)(m7)*sizeof(**(r7)),(r7))

    906: /*MC
    907:    PetscNew - Allocates memory of a particular type, zeros the memory! Aligned to PETSC_MEMALIGN

    909:    Synopsis:
    910:     #include <petscsys.h>
    911:    PetscErrorCode PetscNew(type **result)

    913:    Not Collective

    915:    Output Parameter:
    916: .  result - memory allocated, sized to match pointer type

    918:    Level: beginner

    920: .seealso: PetscFree(), PetscMalloc(), PetscNewLog(), PetscCalloc1(), PetscMalloc1()

    922: M*/
    923: #define PetscNew(b)      PetscCalloc1(1,(b))

    925: /*MC
    926:    PetscNewLog - Allocates memory of a type matching pointer, zeros the memory! Aligned to PETSC_MEMALIGN. Associates the memory allocated
    927:          with the given object using PetscLogObjectMemory().

    929:    Synopsis:
    930:     #include <petscsys.h>
    931:    PetscErrorCode PetscNewLog(PetscObject obj,type **result)

    933:    Not Collective

    935:    Input Parameter:
    936: .  obj - object memory is logged to

    938:    Output Parameter:
    939: .  result - memory allocated, sized to match pointer type

    941:    Level: developer

    943: .seealso: PetscFree(), PetscMalloc(), PetscNew(), PetscLogObjectMemory(), PetscCalloc1(), PetscMalloc1()

    945: M*/
    946: #define PetscNewLog(o,b) (PetscNew((b)) || PetscLogObjectMemory((PetscObject)o,sizeof(**(b))))

    948: /*MC
    949:    PetscFree - Frees memory

    951:    Synopsis:
    952:     #include <petscsys.h>
    953:    PetscErrorCode PetscFree(void *memory)

    955:    Not Collective

    957:    Input Parameter:
    958: .   memory - memory to free (the pointer is ALWAYS set to NULL upon sucess)

    960:    Level: beginner

    962:    Notes:
    963:    Do not free memory obtained with PetscMalloc2(), PetscCalloc2() etc, they must be freed with PetscFree2() etc.

    965:    It is safe to call PetscFree() on a NULL pointer.

    967: .seealso: PetscNew(), PetscMalloc(), PetscNewLog(), PetscMalloc1(), PetscCalloc1()

    969: M*/
    970: #define PetscFree(a)   ((*PetscTrFree)((void*)(a),__LINE__,PETSC_FUNCTION_NAME,__FILE__) || ((a) = 0,0))

    972: /*MC
    973:    PetscFree2 - Frees 2 chunks of memory obtained with PetscMalloc2()

    975:    Synopsis:
    976:     #include <petscsys.h>
    977:    PetscErrorCode PetscFree2(void *memory1,void *memory2)

    979:    Not Collective

    981:    Input Parameters:
    982: +   memory1 - memory to free
    983: -   memory2 - 2nd memory to free

    985:    Level: developer

    987:    Notes:
    988:     Memory must have been obtained with PetscMalloc2()

    990: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree()

    992: M*/
    993: #define PetscFree2(m1,m2)   PetscFreeA(2,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2))

    995: /*MC
    996:    PetscFree3 - Frees 3 chunks of memory obtained with PetscMalloc3()

    998:    Synopsis:
    999:     #include <petscsys.h>
    1000:    PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3)

    1002:    Not Collective

    1004:    Input Parameters:
    1005: +   memory1 - memory to free
    1006: .   memory2 - 2nd memory to free
    1007: -   memory3 - 3rd memory to free

    1009:    Level: developer

    1011:    Notes:
    1012:     Memory must have been obtained with PetscMalloc3()

    1014: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3()

    1016: M*/
    1017: #define PetscFree3(m1,m2,m3)   PetscFreeA(3,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3))

    1019: /*MC
    1020:    PetscFree4 - Frees 4 chunks of memory obtained with PetscMalloc4()

    1022:    Synopsis:
    1023:     #include <petscsys.h>
    1024:    PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4)

    1026:    Not Collective

    1028:    Input Parameters:
    1029: +   m1 - memory to free
    1030: .   m2 - 2nd memory to free
    1031: .   m3 - 3rd memory to free
    1032: -   m4 - 4th memory to free

    1034:    Level: developer

    1036:    Notes:
    1037:     Memory must have been obtained with PetscMalloc4()

    1039: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4()

    1041: M*/
    1042: #define PetscFree4(m1,m2,m3,m4)   PetscFreeA(4,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4))

    1044: /*MC
    1045:    PetscFree5 - Frees 5 chunks of memory obtained with PetscMalloc5()

    1047:    Synopsis:
    1048:     #include <petscsys.h>
    1049:    PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5)

    1051:    Not Collective

    1053:    Input Parameters:
    1054: +   m1 - memory to free
    1055: .   m2 - 2nd memory to free
    1056: .   m3 - 3rd memory to free
    1057: .   m4 - 4th memory to free
    1058: -   m5 - 5th memory to free

    1060:    Level: developer

    1062:    Notes:
    1063:     Memory must have been obtained with PetscMalloc5()

    1065: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5()

    1067: M*/
    1068: #define PetscFree5(m1,m2,m3,m4,m5)   PetscFreeA(5,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5))

    1070: /*MC
    1071:    PetscFree6 - Frees 6 chunks of memory obtained with PetscMalloc6()

    1073:    Synopsis:
    1074:     #include <petscsys.h>
    1075:    PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6)

    1077:    Not Collective

    1079:    Input Parameters:
    1080: +   m1 - memory to free
    1081: .   m2 - 2nd memory to free
    1082: .   m3 - 3rd memory to free
    1083: .   m4 - 4th memory to free
    1084: .   m5 - 5th memory to free
    1085: -   m6 - 6th memory to free

    1088:    Level: developer

    1090:    Notes:
    1091:     Memory must have been obtained with PetscMalloc6()

    1093: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6()

    1095: M*/
    1096: #define PetscFree6(m1,m2,m3,m4,m5,m6)   PetscFreeA(6,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5),&(m6))

    1098: /*MC
    1099:    PetscFree7 - Frees 7 chunks of memory obtained with PetscMalloc7()

    1101:    Synopsis:
    1102:     #include <petscsys.h>
    1103:    PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7)

    1105:    Not Collective

    1107:    Input Parameters:
    1108: +   m1 - memory to free
    1109: .   m2 - 2nd memory to free
    1110: .   m3 - 3rd memory to free
    1111: .   m4 - 4th memory to free
    1112: .   m5 - 5th memory to free
    1113: .   m6 - 6th memory to free
    1114: -   m7 - 7th memory to free

    1117:    Level: developer

    1119:    Notes:
    1120:     Memory must have been obtained with PetscMalloc7()

    1122: .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6(),
    1123:           PetscMalloc7()

    1125: M*/
    1126: #define PetscFree7(m1,m2,m3,m4,m5,m6,m7)   PetscFreeA(7,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5),&(m6),&(m7))

    1128: PETSC_EXTERN PetscErrorCode PetscMallocA(int,PetscBool,int,const char *,const char *,size_t,void *,...);
    1129: PETSC_EXTERN PetscErrorCode PetscFreeA(int,int,const char *,const char *,void *,...);
    1130: PETSC_EXTERN PetscErrorCode (*PetscTrMalloc)(size_t,PetscBool,int,const char[],const char[],void**);
    1131: PETSC_EXTERN PetscErrorCode (*PetscTrFree)(void*,int,const char[],const char[]);
    1132: PETSC_EXTERN PetscErrorCode (*PetscTrRealloc)(size_t,int,const char[],const char[],void**);
    1133: PETSC_EXTERN PetscErrorCode PetscMallocSetCoalesce(PetscBool);
    1134: PETSC_EXTERN PetscErrorCode PetscMallocSet(PetscErrorCode (*)(size_t,PetscBool,int,const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[]),PetscErrorCode (*)(size_t,int,const char[],const char[], void **));
    1135: PETSC_EXTERN PetscErrorCode PetscMallocClear(void);

    1137: /*
    1138:   Unlike PetscMallocSet and PetscMallocClear which overwrite the existing settings, these two functions save the previous choice of allocator, and should be used in pair.
    1139: */
    1140: PETSC_EXTERN PetscErrorCode PetscMallocSetDRAM(void);
    1141: PETSC_EXTERN PetscErrorCode PetscMallocResetDRAM(void);

    1143: #define MPIU_PETSCLOGDOUBLE  MPI_DOUBLE
    1144: #define MPIU_2PETSCLOGDOUBLE MPI_2DOUBLE_PRECISION

    1146: /*
    1147:    Routines for tracing memory corruption/bleeding with default PETSc memory allocation
    1148: */
    1149: PETSC_EXTERN PetscErrorCode PetscMallocDump(FILE *);
    1150: PETSC_EXTERN PetscErrorCode PetscMallocView(FILE *);
    1151: PETSC_EXTERN PetscErrorCode PetscMallocGetCurrentUsage(PetscLogDouble *);
    1152: PETSC_EXTERN PetscErrorCode PetscMallocGetMaximumUsage(PetscLogDouble *);
    1153: PETSC_EXTERN PetscErrorCode PetscMallocPushMaximumUsage(int);
    1154: PETSC_EXTERN PetscErrorCode PetscMallocPopMaximumUsage(int,PetscLogDouble*);
    1155: PETSC_EXTERN PetscErrorCode PetscMallocSetDebug(PetscBool,PetscBool);
    1156: PETSC_EXTERN PetscErrorCode PetscMallocGetDebug(PetscBool*,PetscBool*,PetscBool*);
    1157: PETSC_EXTERN PetscErrorCode PetscMallocValidate(int,const char[],const char[]);
    1158: PETSC_EXTERN PetscErrorCode PetscMallocViewSet(PetscLogDouble);
    1159: PETSC_EXTERN PetscErrorCode PetscMallocViewGet(PetscBool*);

    1161: PETSC_EXTERN const char *const PetscDataTypes[];
    1162: PETSC_EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*);
    1163: PETSC_EXTERN PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype,PetscDataType*);
    1164: PETSC_EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType,size_t*);
    1165: PETSC_EXTERN PetscErrorCode PetscDataTypeFromString(const char*,PetscDataType*,PetscBool*);

    1167: /*
    1168:     Basic memory and string operations. These are usually simple wrappers
    1169:    around the basic Unix system calls, but a few of them have additional
    1170:    functionality and/or error checking.
    1171: */
    1172: PETSC_EXTERN PetscErrorCode PetscBitMemcpy(void*,PetscInt,const void*,PetscInt,PetscInt,PetscDataType);
    1173: PETSC_EXTERN PetscErrorCode PetscMemcmp(const void*,const void*,size_t,PetscBool  *);
    1174: PETSC_EXTERN PetscErrorCode PetscStrlen(const char[],size_t*);
    1175: PETSC_EXTERN PetscErrorCode PetscStrToArray(const char[],char,int*,char ***);
    1176: PETSC_EXTERN PetscErrorCode PetscStrToArrayDestroy(int,char **);
    1177: PETSC_EXTERN PetscErrorCode PetscStrcmp(const char[],const char[],PetscBool  *);
    1178: PETSC_EXTERN PetscErrorCode PetscStrgrt(const char[],const char[],PetscBool  *);
    1179: PETSC_EXTERN PetscErrorCode PetscStrcasecmp(const char[],const char[],PetscBool *);
    1180: PETSC_EXTERN PetscErrorCode PetscStrncmp(const char[],const char[],size_t,PetscBool *);
    1181: PETSC_EXTERN PetscErrorCode PetscStrcpy(char[],const char[]);
    1182: PETSC_EXTERN PetscErrorCode PetscStrcat(char[],const char[]);
    1183: PETSC_EXTERN PetscErrorCode PetscStrlcat(char[],const char[],size_t);
    1184: PETSC_EXTERN PetscErrorCode PetscStrncpy(char[],const char[],size_t);
    1185: PETSC_EXTERN PetscErrorCode PetscStrchr(const char[],char,char *[]);
    1186: PETSC_EXTERN PetscErrorCode PetscStrtolower(char[]);
    1187: PETSC_EXTERN PetscErrorCode PetscStrtoupper(char[]);
    1188: PETSC_EXTERN PetscErrorCode PetscStrrchr(const char[],char,char *[]);
    1189: PETSC_EXTERN PetscErrorCode PetscStrstr(const char[],const char[],char *[]);
    1190: PETSC_EXTERN PetscErrorCode PetscStrrstr(const char[],const char[],char *[]);
    1191: PETSC_EXTERN PetscErrorCode PetscStrendswith(const char[],const char[],PetscBool*);
    1192: PETSC_EXTERN PetscErrorCode PetscStrbeginswith(const char[],const char[],PetscBool*);
    1193: PETSC_EXTERN PetscErrorCode PetscStrendswithwhich(const char[],const char *const*,PetscInt*);
    1194: PETSC_EXTERN PetscErrorCode PetscStrallocpy(const char[],char *[]);
    1195: PETSC_EXTERN PetscErrorCode PetscStrArrayallocpy(const char *const*,char***);
    1196: PETSC_EXTERN PetscErrorCode PetscStrArrayDestroy(char***);
    1197: PETSC_EXTERN PetscErrorCode PetscStrNArrayallocpy(PetscInt,const char *const*,char***);
    1198: PETSC_EXTERN PetscErrorCode PetscStrNArrayDestroy(PetscInt,char***);
    1199: PETSC_EXTERN PetscErrorCode PetscStrreplace(MPI_Comm,const char[],char[],size_t);

    1201: PETSC_EXTERN void PetscStrcmpNoError(const char[],const char[],PetscBool  *);

    1203: PETSC_EXTERN PetscErrorCode PetscTokenCreate(const char[],const char,PetscToken*);
    1204: PETSC_EXTERN PetscErrorCode PetscTokenFind(PetscToken,char *[]);
    1205: PETSC_EXTERN PetscErrorCode PetscTokenDestroy(PetscToken*);
    1206: PETSC_EXTERN PetscErrorCode PetscStrInList(const char[],const char[],char,PetscBool*);

    1208: PETSC_EXTERN PetscErrorCode PetscEListFind(PetscInt,const char *const*,const char*,PetscInt*,PetscBool*);
    1209: PETSC_EXTERN PetscErrorCode PetscEnumFind(const char *const*,const char*,PetscEnum*,PetscBool*);

    1211: /*
    1212:    These are MPI operations for MPI_Allreduce() etc
    1213: */
    1214: PETSC_EXTERN MPI_Op MPIU_MAXSUM_OP;
    1215: #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) || defined(PETSC_USE_REAL___FP16)
    1216: PETSC_EXTERN MPI_Op MPIU_SUM;
    1217: #else
    1218: #define MPIU_SUM MPI_SUM
    1219: #endif
    1220: #if defined(PETSC_USE_REAL___FLOAT128) || defined(PETSC_USE_REAL___FP16)
    1221: PETSC_EXTERN MPI_Op MPIU_MAX;
    1222: PETSC_EXTERN MPI_Op MPIU_MIN;
    1223: #else
    1224: #define MPIU_MAX MPI_MAX
    1225: #define MPIU_MIN MPI_MIN
    1226: #endif
    1227: PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm,const PetscInt[],PetscInt*,PetscInt*);

    1229: PETSC_EXTERN PetscErrorCode MPIULong_Send(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm);
    1230: PETSC_EXTERN PetscErrorCode MPIULong_Recv(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm);

    1232: PETSC_EXTERN const char *const PetscFileModes[];

    1234: /*
    1235:     Defines PETSc error handling.
    1236: */
    1237:  #include <petscerror.h>

    1239: #define PETSC_SMALLEST_CLASSID  1211211
    1240: PETSC_EXTERN PetscClassId PETSC_LARGEST_CLASSID;
    1241: PETSC_EXTERN PetscClassId PETSC_OBJECT_CLASSID;
    1242: PETSC_EXTERN PetscErrorCode PetscClassIdRegister(const char[],PetscClassId *);

    1244: /*
    1245:    Routines that get memory usage information from the OS
    1246: */
    1247: PETSC_EXTERN PetscErrorCode PetscMemoryGetCurrentUsage(PetscLogDouble *);
    1248: PETSC_EXTERN PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *);
    1249: PETSC_EXTERN PetscErrorCode PetscMemorySetGetMaximumUsage(void);
    1250: PETSC_EXTERN PetscErrorCode PetscMemoryTrace(const char[]);

    1252: PETSC_EXTERN PetscErrorCode PetscInfoAllow(PetscBool ,const char []);
    1253: PETSC_EXTERN PetscErrorCode PetscSleep(PetscReal);

    1255: /*
    1256:    Initialization of PETSc
    1257: */
    1258: PETSC_EXTERN PetscErrorCode PetscInitialize(int*,char***,const char[],const char[]);
    1259: PETSC_EXTERN PetscErrorCode PetscInitializeNoPointers(int,char**,const char[],const char[]);
    1260: PETSC_EXTERN PetscErrorCode PetscInitializeNoArguments(void);
    1261: PETSC_EXTERN PetscErrorCode PetscInitialized(PetscBool *);
    1262: PETSC_EXTERN PetscErrorCode PetscFinalized(PetscBool *);
    1263: PETSC_EXTERN PetscErrorCode PetscFinalize(void);
    1264: PETSC_EXTERN PetscErrorCode PetscInitializeFortran(void);
    1265: PETSC_EXTERN PetscErrorCode PetscGetArgs(int*,char ***);
    1266: PETSC_EXTERN PetscErrorCode PetscGetArguments(char ***);
    1267: PETSC_EXTERN PetscErrorCode PetscFreeArguments(char **);

    1269: PETSC_EXTERN PetscErrorCode PetscEnd(void);
    1270: PETSC_EXTERN PetscErrorCode PetscSysInitializePackage(void);

    1272: PETSC_EXTERN PetscErrorCode PetscPythonInitialize(const char[],const char[]);
    1273: PETSC_EXTERN PetscErrorCode PetscPythonFinalize(void);
    1274: PETSC_EXTERN PetscErrorCode PetscPythonPrintError(void);
    1275: PETSC_EXTERN PetscErrorCode PetscPythonMonitorSet(PetscObject,const char[]);

    1277: /*
    1278:      These are so that in extern C code we can caste function pointers to non-extern C
    1279:    function pointers. Since the regular C++ code expects its function pointers to be C++
    1280: */
    1281: PETSC_EXTERN_TYPEDEF typedef void (**PetscVoidStarFunction)(void);
    1282: PETSC_EXTERN_TYPEDEF typedef void (*PetscVoidFunction)(void);
    1283: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscErrorCodeFunction)(void);

    1285: /*
    1286:     Functions that can act on any PETSc object.
    1287: */
    1288: PETSC_EXTERN PetscErrorCode PetscObjectDestroy(PetscObject*);
    1289: PETSC_EXTERN PetscErrorCode PetscObjectGetComm(PetscObject,MPI_Comm *);
    1290: PETSC_EXTERN PetscErrorCode PetscObjectGetClassId(PetscObject,PetscClassId *);
    1291: PETSC_EXTERN PetscErrorCode PetscObjectGetClassName(PetscObject,const char *[]);
    1292: PETSC_EXTERN PetscErrorCode PetscObjectSetType(PetscObject,const char []);
    1293: PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject,const char *[]);
    1294: PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]);
    1295: PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject,const char*[]);
    1296: PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject,PetscInt);
    1297: PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject,PetscInt*);
    1298: PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject,PetscObject,PetscInt);
    1299: PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject);
    1300: PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,PetscInt*);
    1301: PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject);
    1302: PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,PetscMPIInt *);
    1303: PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject);
    1304: PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject,const char[]);
    1305: PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject *);
    1306: PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject,const char[],void (*)(void));
    1307: #define PetscObjectComposeFunction(a,b,d) PetscObjectComposeFunction_Private(a,b,(PetscVoidFunction)(d))
    1308: PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject);
    1309: PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject);
    1310: PETSC_EXTERN PetscErrorCode PetscObjectSetPrintedOptions(PetscObject);
    1311: PETSC_EXTERN PetscErrorCode PetscObjectInheritPrintedOptions(PetscObject,PetscObject);
    1312: PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,PetscMPIInt *);

    1314:  #include <petscviewertypes.h>
    1315:  #include <petscoptions.h>

    1317: PETSC_EXTERN PetscErrorCode PetscObjectsListGetGlobalNumbering(MPI_Comm,PetscInt,PetscObject*,PetscInt*,PetscInt*);

    1319: PETSC_EXTERN PetscErrorCode PetscMemoryShowUsage(PetscViewer,const char[]);
    1320: PETSC_EXTERN PetscErrorCode PetscMemoryView(PetscViewer,const char[]);
    1321: PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject,PetscViewer);
    1322: PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer);
    1323: #define PetscObjectQueryFunction(obj,name,fptr) PetscObjectQueryFunction_Private((obj),(name),(PetscVoidFunction*)(fptr))
    1324: PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject,const char[],void (**)(void));
    1325: PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]);
    1326: PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]);
    1327: PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]);
    1328: PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,const char*[]);
    1329: PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]);
    1330: PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject);
    1331: PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void);
    1332: PETSC_EXTERN PetscErrorCode PetscObjectViewFromOptions(PetscObject,PetscObject,const char[]);
    1333: PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject);
    1334: PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject,const char[],PetscBool *);
    1335: PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompare(PetscObject,const char[],PetscBool *);
    1336: PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject,PetscBool*,const char[],...);
    1337: PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompareAny(PetscObject,PetscBool*,const char[],...);
    1338: PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void));
    1339: PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void);

    1341: #if defined(PETSC_HAVE_SAWS)
    1342: PETSC_EXTERN PetscErrorCode PetscSAWsBlock(void);
    1343: PETSC_EXTERN PetscErrorCode PetscObjectSAWsViewOff(PetscObject);
    1344: PETSC_EXTERN PetscErrorCode PetscObjectSAWsSetBlock(PetscObject,PetscBool);
    1345: PETSC_EXTERN PetscErrorCode PetscObjectSAWsBlock(PetscObject);
    1346: PETSC_EXTERN PetscErrorCode PetscObjectSAWsGrantAccess(PetscObject);
    1347: PETSC_EXTERN PetscErrorCode PetscObjectSAWsTakeAccess(PetscObject);
    1348: PETSC_EXTERN void           PetscStackSAWsGrantAccess(void);
    1349: PETSC_EXTERN void           PetscStackSAWsTakeAccess(void);
    1350: PETSC_EXTERN PetscErrorCode PetscStackViewSAWs(void);
    1351: PETSC_EXTERN PetscErrorCode PetscStackSAWsViewOff(void);

    1353: #else
    1354: #define PetscSAWsBlock()                        0
    1355: #define PetscObjectSAWsViewOff(obj)             0
    1356: #define PetscObjectSAWsSetBlock(obj,flg)        0
    1357: #define PetscObjectSAWsBlock(obj)               0
    1358: #define PetscObjectSAWsGrantAccess(obj)         0
    1359: #define PetscObjectSAWsTakeAccess(obj)          0
    1360: #define PetscStackViewSAWs()                    0
    1361: #define PetscStackSAWsViewOff()                 0
    1362: #define PetscStackSAWsTakeAccess()
    1363: #define PetscStackSAWsGrantAccess()

    1365: #endif

    1367: PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[],PetscDLMode,PetscDLHandle *);
    1368: PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *);
    1369: PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle,const char[],void **);

    1371: #if defined(PETSC_USE_DEBUG)
    1372: PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void*,PetscStack**);
    1373: #endif
    1374: PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE*,PetscBool);

    1376: PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList*);
    1377: PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList,const char[],PetscObject*);
    1378: PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList,PetscObject,char**,PetscBool*);
    1379: PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *,const char[],PetscObject);
    1380: PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *,const char[]);
    1381: PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList,PetscObjectList *);

    1383: /*
    1384:     Dynamic library lists. Lists of names of routines in objects or in dynamic
    1385:   link libraries that will be loaded as needed.
    1386: */

    1388: #define PetscFunctionListAdd(list,name,fptr) PetscFunctionListAdd_Private((list),(name),(PetscVoidFunction)(fptr))
    1389: PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList*,const char[],void (*)(void));
    1390: PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList*);
    1391: #define PetscFunctionListFind(list,name,fptr) PetscFunctionListFind_Private((list),(name),(PetscVoidFunction*)(fptr))
    1392: PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList,const char[],void (**)(void));
    1393: PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFunctionList,const char[],const char[]);
    1394: PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList,PetscFunctionList *);
    1395: PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList,PetscViewer);
    1396: PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList,const char ***,int*);

    1398: PETSC_EXTERN PetscDLLibrary  PetscDLLibrariesLoaded;
    1399: PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibrary *,const char[]);
    1400: PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibrary *,const char[]);
    1401: PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibrary *,const char[],const char[],void **);
    1402: PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary);
    1403: PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,size_t,PetscBool  *);
    1404: PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],PetscDLLibrary *);
    1405: PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary);

    1407: /*
    1408:      Useful utility routines
    1409: */
    1410: PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*);
    1411: PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*);
    1412: PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt);
    1413: PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt);
    1414: PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject);
    1415: PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE*);
    1416: PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxInt(MPI_Comm,PetscInt[],PetscInt[]);
    1417: PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxReal(MPI_Comm,PetscReal[],PetscReal[]);

    1419: /*MC
    1420:     PetscNot - negates a logical type value and returns result as a PetscBool

    1422:     Notes:
    1423:     This is useful in cases like
    1424: $     int        *a;
    1425: $     PetscBool  flag = PetscNot(a)
    1426:      where !a would not return a PetscBool because we cannot provide a cast from int to PetscBool in C.

    1428:     Level: beginner

    1430:     .seealso : PetscBool, PETSC_TRUE, PETSC_FALSE
    1431: M*/
    1432: #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)

    1434: /*MC
    1435:     PetscHelpPrintf - Prints help messages.

    1437:    Synopsis:
    1438:     #include <petscsys.h>
    1439:      PetscErrorCode (*PetscHelpPrintf)(const char format[],...);

    1441:     Not Collective

    1443:     Input Parameters:
    1444: .   format - the usual printf() format string

    1446:    Level: developer

    1448:     Fortran Note:
    1449:     This routine is not supported in Fortran.

    1452: .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf()
    1453: M*/
    1454: PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm,const char[],...);

    1456: /*
    1457:      Defines PETSc profiling.
    1458: */
    1459:  #include <petsclog.h>

    1461: /*
    1462:       Simple PETSc parallel IO for ASCII printing
    1463: */
    1464: PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[],char[]);
    1465: PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm,const char[],const char[],FILE**);
    1466: PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm,FILE*);
    1467: PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm,FILE*,const char[],...);
    1468: PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm,const char[],...);
    1469: PETSC_EXTERN PetscErrorCode PetscSNPrintf(char*,size_t,const char [],...);
    1470: PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char*,size_t,const char [],size_t*,...);
    1471: PETSC_EXTERN PetscErrorCode PetscFormatRealArray(char[],size_t,const char*,PetscInt,const PetscReal[]);

    1473: PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char [],...);
    1474: PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char [],...);
    1475: PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm,const char [],...);

    1477: PETSC_EXTERN PetscErrorCode PetscFormatConvertGetSize(const char*,size_t*);
    1478: PETSC_EXTERN PetscErrorCode PetscFormatConvert(const char*,char *);

    1480: #if defined(PETSC_HAVE_POPEN)
    1481: PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **);
    1482: PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm,FILE*);
    1483: PETSC_EXTERN PetscErrorCode PetscPOpenSetMachine(const char[]);
    1484: #endif

    1486: PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm,const char[],...);
    1487: PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...);
    1488: PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm,FILE*);
    1489: PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]);
    1490: PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**);
    1491: PETSC_EXTERN PetscErrorCode PetscStartJava(MPI_Comm,const char[],const char[],FILE**);
    1492: PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char*[]);

    1494: PETSC_EXTERN PetscClassId PETSC_CONTAINER_CLASSID;
    1495: PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer,void **);
    1496: PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer,void *);
    1497: PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer*);
    1498: PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm,PetscContainer *);
    1499: PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer, PetscErrorCode (*)(void*));
    1500: PETSC_EXTERN PetscErrorCode PetscContainerUserDestroyDefault(void*);

    1502: /*
    1503:    For use in debuggers
    1504: */
    1505: PETSC_EXTERN PetscMPIInt PetscGlobalRank;
    1506: PETSC_EXTERN PetscMPIInt PetscGlobalSize;
    1507: PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt,const PetscInt[],PetscViewer);
    1508: PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt,const PetscReal[],PetscViewer);
    1509: PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt,const PetscScalar[],PetscViewer);

    1511: #include <stddef.h>
    1512: #include <string.h>             /* for memcpy, memset */
    1513: #include <stdlib.h>

    1515: #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__)
    1516: #include <xmmintrin.h>
    1517: #endif

    1519: /*@C
    1520:    PetscMemmove - Copies n bytes, beginning at location b, to the space
    1521:    beginning at location a. Copying  between regions that overlap will
    1522:    take place correctly. Use PetscMemcpy() if the locations do not overlap

    1524:    Not Collective

    1526:    Input Parameters:
    1527: +  b - pointer to initial memory space
    1528: .  a - pointer to copy space
    1529: -  n - length (in bytes) of space to copy

    1531:    Level: intermediate

    1533:    Note:
    1534:    PetscArraymove() is preferred
    1535:    This routine is analogous to memmove().

    1537:    Developers Note: This is inlined for performance

    1539: .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscStrallocpy(),
    1540:           PetscArraymove()
    1541: @*/
    1542: PETSC_STATIC_INLINE PetscErrorCode PetscMemmove(void *a,const void *b,size_t n)
    1543: {
    1545:   if (n > 0 && !a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to null pointer");
    1546:   if (n > 0 && !b) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
    1547: #if !defined(PETSC_HAVE_MEMMOVE)
    1548:   if (a < b) {
    1549:     if (a <= b - n) memcpy(a,b,n);
    1550:     else {
    1551:       memcpy(a,b,(int)(b - a));
    1552:       PetscMemmove(b,b + (int)(b - a),n - (int)(b - a));
    1553:     }
    1554:   } else {
    1555:     if (b <= a - n) memcpy(a,b,n);
    1556:     else {
    1557:       memcpy(b + n,b + (n - (int)(a - b)),(int)(a - b));
    1558:       PetscMemmove(a,b,n - (int)(a - b));
    1559:     }
    1560:   }
    1561: #else
    1562:   memmove((char*)(a),(char*)(b),n);
    1563: #endif
    1564:   return(0);
    1565: }

    1567: /*@C
    1568:    PetscMemcpy - Copies n bytes, beginning at location b, to the space
    1569:    beginning at location a. The two memory regions CANNOT overlap, use
    1570:    PetscMemmove() in that case.

    1572:    Not Collective

    1574:    Input Parameters:
    1575: +  b - pointer to initial memory space
    1576: -  n - length (in bytes) of space to copy

    1578:    Output Parameter:
    1579: .  a - pointer to copy space

    1581:    Level: intermediate

    1583:    Compile Option:
    1584:     PETSC_PREFER_DCOPY_FOR_MEMCPY will cause the BLAS dcopy() routine to be used
    1585:                                   for memory copies on double precision values.
    1586:     PETSC_PREFER_COPY_FOR_MEMCPY will cause C code to be used
    1587:                                   for memory copies on double precision values.
    1588:     PETSC_PREFER_FORTRAN_FORMEMCPY will cause Fortran code to be used
    1589:                                   for memory copies on double precision values.

    1591:    Note:
    1592:    Prefer PetscArraycpy()
    1593:    This routine is analogous to memcpy().
    1594:    Not available from Fortran

    1596:    Developer Note: this is inlined for fastest performance

    1598: .seealso: PetscMemzero(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()

    1600: @*/
    1601: PETSC_STATIC_INLINE PetscErrorCode PetscMemcpy(void *a,const void *b,size_t n)
    1602: {
    1603: #if defined(PETSC_USE_DEBUG)
    1604:   size_t al = (size_t) a,bl = (size_t) b;
    1605:   size_t nl = (size_t) n;
    1607:   if (n > 0 && !b) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
    1608:   if (n > 0 && !a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to a null pointer");
    1609: #else
    1611: #endif
    1612:   if (a != b && n > 0) {
    1613: #if defined(PETSC_USE_DEBUG)
    1614:     if ((al > bl && (al - bl) < nl) || (bl - al) < nl)  SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Memory regions overlap: either use PetscMemmov()\n\
    1615:               or make sure your copy regions and lengths are correct. \n\
    1616:               Length (bytes) %ld first address %ld second address %ld",nl,al,bl);
    1617: #endif
    1618: #if (defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) || defined(PETSC_PREFER_COPY_FOR_MEMCPY) || defined(PETSC_PREFER_FORTRAN_FORMEMCPY))
    1619:    if (!(a % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
    1620:       size_t len = n/sizeof(PetscScalar);
    1621: #if defined(PETSC_PREFER_DCOPY_FOR_MEMCPY)
    1622:       PetscBLASInt   one = 1,blen;
    1624:       PetscBLASIntCast(len,&blen);
    1625:       PetscStackCallBLAS("BLAScopy",BLAScopy_(&blen,(PetscScalar *)b,&one,(PetscScalar *)a,&one));
    1626: #elif defined(PETSC_PREFER_FORTRAN_FORMEMCPY)
    1627:       fortrancopy_(&len,(PetscScalar*)b,(PetscScalar*)a);
    1628: #else
    1629:       size_t      i;
    1630:       PetscScalar *x = (PetscScalar*)b, *y = (PetscScalar*)a;
    1631:       for (i=0; i<len; i++) y[i] = x[i];
    1632: #endif
    1633:     } else {
    1634:       memcpy((char*)(a),(char*)(b),n);
    1635:     }
    1636: #else
    1637:     memcpy((char*)(a),(char*)(b),n);
    1638: #endif
    1639:   }
    1640:   return(0);
    1641: }

    1643: /*@C
    1644:    PetscMemzero - Zeros the specified memory.

    1646:    Not Collective

    1648:    Input Parameters:
    1649: +  a - pointer to beginning memory location
    1650: -  n - length (in bytes) of memory to initialize

    1652:    Level: intermediate

    1654:    Compile Option:
    1655:    PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens
    1656:   to be faster than the memset() routine. This flag causes the bzero() routine to be used.

    1658:    Not available from Fortran
    1659:    Prefer PetscArrayzero()

    1661:    Developer Note: this is inlined for fastest performance

    1663: .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
    1664: @*/
    1665: PETSC_STATIC_INLINE PetscErrorCode  PetscMemzero(void *a,size_t n)
    1666: {
    1667:   if (n > 0) {
    1668: #if defined(PETSC_USE_DEBUG)
    1669:     if (!a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to zero at a null pointer");
    1670: #endif
    1671: #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO)
    1672:     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
    1673:       size_t      i,len = n/sizeof(PetscScalar);
    1674:       PetscScalar *x = (PetscScalar*)a;
    1675:       for (i=0; i<len; i++) x[i] = 0.0;
    1676:     } else {
    1677: #elif defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
    1678:     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
    1679:       PetscInt len = n/sizeof(PetscScalar);
    1680:       fortranzero_(&len,(PetscScalar*)a);
    1681:     } else {
    1682: #endif
    1683: #if defined(PETSC_PREFER_BZERO)
    1684:       bzero((char *)a,n);
    1685: #else
    1686:       memset((char*)a,0,n);
    1687: #endif
    1688: #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) || defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
    1689:     }
    1690: #endif
    1691:   }
    1692:   return 0;
    1693: }

    1695: /*MC
    1696:    PetscArraycmp - Compares two arrays in memory.

    1698:    Synopsis:
    1699:     #include <petscsys.h>
    1700:     PetscErrorCode PetscArraycmp(const anytype *str1,const anytype *str2,size_t cnt,PetscBool *e)

    1702:    Not Collective

    1704:    Input Parameters:
    1705: +  str1 - First array
    1706: .  str2 - Second array
    1707: -  cnt  - Count of the array, not in bytes, but number of entries in the arrays

    1709:    Output Parameters:
    1710: .   e - PETSC_TRUE if equal else PETSC_FALSE.

    1712:    Level: intermediate

    1714:    Note:
    1715:    This routine is a preferred replacement to PetscMemcmp()
    1716:    The arrays must be of the same type

    1718: .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(),
    1719:           PetscArraymove()
    1720: M*/
    1721: #define  PetscArraycmp(str1,str2,cnt,e) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcmp(str1,str2,(size_t)(cnt)*sizeof(*(str1)),e))

    1723: /*MC
    1724:    PetscArraymove - Copies from one array in memory to another, the arrays may overlap. Use PetscArraycpy() when the arrays
    1725:                     do not overlap

    1727:    Synopsis:
    1728:     #include <petscsys.h>
    1729:     PetscErrorCode PetscArraymove(anytype *str1,const anytype *str2,size_t cnt)

    1731:    Not Collective

    1733:    Input Parameters:
    1734: +  str1 - First array
    1735: .  str2 - Second array
    1736: -  cnt  - Count of the array, not in bytes, but number of entries in the arrays

    1738:    Level: intermediate

    1740:    Note:
    1741:    This routine is a preferred replacement to PetscMemmove()
    1742:    The arrays must be of the same type

    1744: .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
    1745: M*/
    1746: #define  PetscArraymove(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemmove(str1,str2,(size_t)(cnt)*sizeof(*(str1))))

    1748: /*MC
    1749:    PetscArraycpy - Copies from one array in memory to another

    1751:    Synopsis:
    1752:     #include <petscsys.h>
    1753:     PetscErrorCode PetscArraycpy(anytype *str1,const anytype *str2,size_t cnt)

    1755:    Not Collective

    1757:    Input Parameters:
    1758: +  str1 - First array (destination)
    1759: .  str2 - Second array (source)
    1760: -  cnt  - Count of the array, not in bytes, but number of entries in the arrays

    1762:    Level: intermediate

    1764:    Note:
    1765:    This routine is a preferred replacement to PetscMemcpy()
    1766:    The arrays must be of the same type

    1768: .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraymove(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
    1769: M*/
    1770: #define  PetscArraycpy(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcpy(str1,str2,(size_t)(cnt)*sizeof(*(str1))))

    1772: /*MC
    1773:    PetscArrayzero - Zeros an array in memory.

    1775:    Synopsis:
    1776:     #include <petscsys.h>
    1777:     PetscErrorCode PetscArrayzero(anytype *str1,size_t cnt)

    1779:    Not Collective

    1781:    Input Parameters:
    1782: +  str1 - array
    1783: -  cnt  - Count of the array, not in bytes, but number of entries in the array

    1785:    Level: intermediate

    1787:    Note:
    1788:    This routine is a preferred replacement to PetscMemzero()

    1790: .seealso: PetscMemcpy(), PetscMemcmp(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(), PetscArraymove()
    1791: M*/
    1792: #define  PetscArrayzero(str1,cnt) PetscMemzero(str1,(size_t)(cnt)*sizeof(*(str1)))

    1794: /*MC
    1795:    PetscPrefetchBlock - Prefetches a block of memory

    1797:    Synopsis:
    1798:     #include <petscsys.h>
    1799:     void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t)

    1801:    Not Collective

    1803:    Input Parameters:
    1804: +  a - pointer to first element to fetch (any type but usually PetscInt or PetscScalar)
    1805: .  n - number of elements to fetch
    1806: .  rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors)
    1807: -  t - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note

    1809:    Level: developer

    1811:    Notes:
    1812:    The last two arguments (rw and t) must be compile-time constants.

    1814:    Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality.  Not all architectures offer
    1815:    equivalent locality hints, but the following macros are always defined to their closest analogue.
    1816: +  PETSC_PREFETCH_HINT_NTA - Non-temporal.  Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched).
    1817: .  PETSC_PREFETCH_HINT_T0 - Fetch to all levels of cache and evict to the closest level.  Use this when the memory will be reused regularly despite necessary eviction from L1.
    1818: .  PETSC_PREFETCH_HINT_T1 - Fetch to level 2 and higher (not L1).
    1819: -  PETSC_PREFETCH_HINT_T2 - Fetch to high-level cache only.  (On many systems, T0 and T1 are equivalent.)

    1821:    This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid
    1822:    address).

    1824: M*/
    1825: #define PetscPrefetchBlock(a,n,rw,t) do {                               \
    1826:     const char *_p = (const char*)(a),*_end = (const char*)((a)+(n));   \
    1827:     for ( ; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p,(rw),(t)); \
    1828:   } while (0)

    1830: /*
    1831:       Determine if some of the kernel computation routines use
    1832:    Fortran (rather than C) for the numerical calculations. On some machines
    1833:    and compilers (like complex numbers) the Fortran version of the routines
    1834:    is faster than the C/C++ versions. The flag --with-fortran-kernels
    1835:    should be used with ./configure to turn these on.
    1836: */
    1837: #if defined(PETSC_USE_FORTRAN_KERNELS)

    1839: #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL)
    1840: #define PETSC_USE_FORTRAN_KERNEL_MULTCRL
    1841: #endif

    1843: #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM)
    1844: #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM
    1845: #endif

    1847: #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
    1848: #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
    1849: #endif

    1851: #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
    1852: #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
    1853: #endif

    1855: #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
    1856: #define PETSC_USE_FORTRAN_KERNEL_NORM
    1857: #endif

    1859: #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
    1860: #define PETSC_USE_FORTRAN_KERNEL_MAXPY
    1861: #endif

    1863: #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
    1864: #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
    1865: #endif

    1867: #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
    1868: #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
    1869: #endif

    1871: #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
    1872: #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
    1873: #endif

    1875: #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
    1876: #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
    1877: #endif

    1879: #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
    1880: #define PETSC_USE_FORTRAN_KERNEL_MDOT
    1881: #endif

    1883: #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
    1884: #define PETSC_USE_FORTRAN_KERNEL_XTIMESY
    1885: #endif

    1887: #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
    1888: #define PETSC_USE_FORTRAN_KERNEL_AYPX
    1889: #endif

    1891: #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
    1892: #define PETSC_USE_FORTRAN_KERNEL_WAXPY
    1893: #endif

    1895: #endif

    1897: /*
    1898:     Macros for indicating code that should be compiled with a C interface,
    1899:    rather than a C++ interface. Any routines that are dynamically loaded
    1900:    (such as the PCCreate_XXX() routines) must be wrapped so that the name
    1901:    mangler does not change the functions symbol name. This just hides the
    1902:    ugly extern "C" {} wrappers.
    1903: */
    1904: #if defined(__cplusplus)
    1905: #  define EXTERN_C_BEGIN extern "C" {
    1906: #  define EXTERN_C_END }
    1907: #else
    1908: #  define EXTERN_C_BEGIN
    1909: #  define EXTERN_C_END
    1910: #endif

    1912: /* --------------------------------------------------------------------*/

    1914: /*MC
    1915:     MPI_Comm - the basic object used by MPI to determine which processes are involved in a
    1916:         communication

    1918:    Level: beginner

    1920:    Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm

    1922: .seealso: PETSC_COMM_WORLD, PETSC_COMM_SELF
    1923: M*/

    1925: #if defined(PETSC_HAVE_MPIIO)
    1926: PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
    1927: PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
    1928: #endif

    1930: /* the following petsc_static_inline require petscerror.h */

    1932: /* Limit MPI to 32-bits */
    1933: #define PETSC_MPI_INT_MAX  2147483647
    1934: #define PETSC_MPI_INT_MIN -2147483647
    1935: /* Limit BLAS to 32-bits */
    1936: #define PETSC_BLAS_INT_MAX  2147483647
    1937: #define PETSC_BLAS_INT_MIN -2147483647

    1939: /*@C
    1940:     PetscIntCast - casts a PetscInt64 (which is 64 bits in size) to a PetscInt (which may be 32 bits in size), generates an
    1941:          error if the PetscInt is not large enough to hold the number.

    1943:    Not Collective

    1945:    Input Parameter:
    1946: .     a - the PetscInt64 value

    1948:    Output Parameter:
    1949: .     b - the resulting PetscInt value

    1951:    Level: advanced

    1953:    Notes: If integers needed for the applications are too large to fit in 32 bit ints you can ./configure using --with-64-bit-indices to make PetscInt use 64 bit ints

    1955:    Not available from Fortran

    1957: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscBLASIntCast()
    1958: @*/
    1959: PETSC_STATIC_INLINE PetscErrorCode PetscIntCast(PetscInt64 a,PetscInt *b)
    1960: {
    1962: #if !defined(PETSC_USE_64BIT_INDICES)
    1963:   if ((a) > PETSC_MAX_INT) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Integer too long for PetscInt, you may need to ./configure using --with-64-bit-indices");
    1964: #endif
    1965:   *b =  (PetscInt)(a);
    1966:   return(0);
    1967: }

    1969: /*@C
    1970:     PetscBLASIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscBLASInt (which may be 32 bits in size), generates an
    1971:          error if the PetscBLASInt is not large enough to hold the number.

    1973:    Not Collective

    1975:    Input Parameter:
    1976: .     a - the PetscInt value

    1978:    Output Parameter:
    1979: .     b - the resulting PetscBLASInt value

    1981:    Level: advanced

    1983:    Not available from Fortran

    1985: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscIntCast()
    1986: @*/
    1987: PETSC_STATIC_INLINE PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b)
    1988: {
    1990: #if defined(PETSC_USE_64BIT_INDICES) && !defined(PETSC_HAVE_64BIT_BLAS_INDICES)
    1991:   *b = 0;
    1992:   if ((a) > PETSC_BLAS_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for BLAS/LAPACK");
    1993: #endif
    1994:   *b =  (PetscBLASInt)(a);
    1995:   return(0);
    1996: }

    1998: /*@C
    1999:     PetscMPIIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscMPIInt (which may be 32 bits in size), generates an
    2000:          error if the PetscMPIInt is not large enough to hold the number.

    2002:    Not Collective

    2004:    Input Parameter:
    2005: .     a - the PetscInt value

    2007:    Output Parameter:
    2008: .     b - the resulting PetscMPIInt value

    2010:    Level: advanced

    2012:    Not available from Fortran

    2014: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntCast()
    2015: @*/
    2016: PETSC_STATIC_INLINE PetscErrorCode PetscMPIIntCast(PetscInt a,PetscMPIInt *b)
    2017: {
    2019: #if defined(PETSC_USE_64BIT_INDICES)
    2020:   *b = 0;
    2021:   if ((a) > PETSC_MPI_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for MPI");
    2022: #endif
    2023:   *b =  (PetscMPIInt)(a);
    2024:   return(0);
    2025: }

    2027: #define PetscInt64Mult(a,b)   ((PetscInt64)(a))*((PetscInt64)(b))

    2029: /*@C

    2031:    PetscRealIntMultTruncate - Computes the product of a positive PetscReal and a positive PetscInt and truncates the value to slightly less than the maximal possible value

    2033:    Not Collective

    2035:    Input Parameter:
    2036: +     a - the PetscReal value
    2037: -     b - the second value

    2039:    Returns:
    2040:       the result as a PetscInt value

    2042:    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
    2043:    Use PetscIntMultTruncate() to compute the product of two positive PetscInt and truncate to fit a PetscInt
    2044:    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt

    2046:    Developers Note:
    2047:    We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.

    2049:    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.

    2051:    Not available from Fortran

    2053:    Level: advanced

    2055: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult()
    2056: @*/
    2057: PETSC_STATIC_INLINE PetscInt PetscRealIntMultTruncate(PetscReal a,PetscInt b)
    2058: {
    2059:   PetscInt64 r;

    2061:   r  =  (PetscInt64) (a*(PetscReal)b);
    2062:   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
    2063:   return (PetscInt) r;
    2064: }

    2066: /*@C

    2068:    PetscIntMultTruncate - Computes the product of two positive PetscInt and truncates the value to slightly less than the maximal possible value

    2070:    Not Collective

    2072:    Input Parameter:
    2073: +     a - the PetscInt value
    2074: -     b - the second value

    2076:    Returns:
    2077:       the result as a PetscInt value

    2079:    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
    2080:    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
    2081:    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt

    2083:    Not available from Fortran

    2085:    Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.

    2087:    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.

    2089:    Level: advanced

    2091: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult()
    2092: @*/
    2093: PETSC_STATIC_INLINE PetscInt PetscIntMultTruncate(PetscInt a,PetscInt b)
    2094: {
    2095:   PetscInt64 r;

    2097:   r  =  PetscInt64Mult(a,b);
    2098:   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
    2099:   return (PetscInt) r;
    2100: }

    2102: /*@C

    2104:    PetscIntSumTruncate - Computes the sum of two positive PetscInt and truncates the value to slightly less than the maximal possible value

    2106:    Not Collective

    2108:    Input Parameter:
    2109: +     a - the PetscInt value
    2110: -     b - the second value

    2112:    Returns:
    2113:      the result as a PetscInt value

    2115:    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
    2116:    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
    2117:    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt

    2119:    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.

    2121:    Not available from Fortran

    2123:    Level: advanced

    2125: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult()
    2126: @*/
    2127: PETSC_STATIC_INLINE PetscInt PetscIntSumTruncate(PetscInt a,PetscInt b)
    2128: {
    2129:   PetscInt64 r;

    2131:   r  =  ((PetscInt64)a) + ((PetscInt64)b);
    2132:   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
    2133:   return (PetscInt) r;
    2134: }

    2136: /*@C

    2138:    PetscIntMultError - Computes the product of two positive PetscInt and generates an error with overflow.

    2140:    Not Collective

    2142:    Input Parameter:
    2143: +     a - the PetscInt value
    2144: -     b - the second value

    2146:    Output Parameter:ma
    2147: .     result - the result as a PetscInt value, or NULL if you do not want the result, you just want to check if it overflows

    2149:    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
    2150:    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt

    2152:    Not available from Fortran

    2154:    Developers Note: We currently assume that PetscInt addition does not overflow, this is obviously wrong but requires many more checks.

    2156:    Level: advanced

    2158: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64(), PetscIntSumError()
    2159: @*/
    2160: PETSC_STATIC_INLINE PetscErrorCode PetscIntMultError(PetscInt a,PetscInt b,PetscInt *result)
    2161: {
    2162:   PetscInt64 r;

    2165:   r  =  PetscInt64Mult(a,b);
    2166: #if !defined(PETSC_USE_64BIT_INDICES)
    2167:   if (r > PETSC_MAX_INT) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_SUP,"Product of two integer %d %d overflow, you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b);
    2168: #endif
    2169:   if (result) *result = (PetscInt) r;
    2170:   return(0);
    2171: }

    2173: /*@C

    2175:    PetscIntSumError - Computes the sum of two positive PetscInt and generates an error with overflow.

    2177:    Not Collective

    2179:    Input Parameter:
    2180: +     a - the PetscInt value
    2181: -     b - the second value

    2183:    Output Parameter:ma
    2184: .     c - the result as a PetscInt value,  or NULL if you do not want the result, you just want to check if it overflows

    2186:    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
    2187:    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt

    2189:    Not available from Fortran

    2191:    Level: advanced

    2193: .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult()
    2194: @*/
    2195: PETSC_STATIC_INLINE PetscErrorCode PetscIntSumError(PetscInt a,PetscInt b,PetscInt *result)
    2196: {
    2197:   PetscInt64 r;

    2200:   r  =  ((PetscInt64)a) + ((PetscInt64)b);
    2201: #if !defined(PETSC_USE_64BIT_INDICES)
    2202:   if (r > PETSC_MAX_INT) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_SUP,"Sum of two integer %d %d overflow, you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b);
    2203: #endif
    2204:   if (result) *result = (PetscInt) r;
    2205:   return(0);
    2206: }

    2208: /*
    2209:      The IBM include files define hz, here we hide it so that it may be used as a regular user variable.
    2210: */
    2211: #if defined(hz)
    2212: #  undef hz
    2213: #endif

    2215: #include <limits.h>

    2217: /* The number of bits in a byte */

    2219: #define PETSC_BITS_PER_BYTE CHAR_BIT

    2221: /*  For arrays that contain filenames or paths */

    2223: #if defined(PETSC_HAVE_SYS_PARAM_H)
    2224: #  include <sys/param.h>
    2225: #endif
    2226: #if defined(PETSC_HAVE_SYS_TYPES_H)
    2227: #  include <sys/types.h>
    2228: #endif
    2229: #if defined(MAXPATHLEN)
    2230: #  define PETSC_MAX_PATH_LEN MAXPATHLEN
    2231: #elif defined(MAX_PATH)
    2232: #  define PETSC_MAX_PATH_LEN MAX_PATH
    2233: #elif defined(_MAX_PATH)
    2234: #  define PETSC_MAX_PATH_LEN _MAX_PATH
    2235: #else
    2236: #  define PETSC_MAX_PATH_LEN 4096
    2237: #endif

    2239: /*MC

    2241:     PETSC_VERSION - This manual page provides information about how PETSc documents and uses its version information. This information is available to both C/C++
    2242:                     and Fortran compilers when petscsys.h is included.

    2245:     The current PETSc version and the API for accessing it are defined in petscversion.h

    2247:     The complete version number is given as the triple  PETSC_VERSION_MAJOR.PETSC_VERSION_MINOR.PETSC_VERSION_SUBMINOR (in short hand x.y.z)

    2249:     A change in the minor version number (y) indicates possible/likely changes in the PETSc API. Note this is different than with the semantic versioning convention
    2250:     where only a change in the major version number (x) indicates a change in the API.

    2252:     A subminor greater than zero indicates a patch release. Version x.y.z maintains source and binary compatibility with version x.y.w for all z and w

    2254:     Use the macros PETSC_VERSION_EQ(x,y,z), PETSC_VERSION_LT(x,y,z), PETSC_VERSION_LE(x,y,z), PETSC_VERSION_GT(x,y,z),
    2255:     PETSC_VERSION_GE(x,y,z) to determine if the current version is equal to, less than, less than or equal to, greater than or greater than or equal to a given
    2256:     version number (x.y.z).

    2258:     PETSC_RELEASE_DATE is the date the x.y version was released (i.e. the version before any patch releases)

    2260:     PETSC_VERSION_DATE is the date the x.y.z version was released

    2262:     PETSC_VERSION_GIT is the last git commit to the repository given in the form vx.y.z-wwwww

    2264:     PETSC_VERSION_DATE_GIT is the date of the last git commit to the repository

    2266:     Level: intermediate

    2268:     PETSC_VERSION_() and PETSC_VERSION_PATCH are deprecated and will eventually be removed. For several releases PETSC_VERSION_PATCH is always 0

    2270: M*/

    2272: /*MC

    2274:     UsingFortran - To use PETSc with Fortran you must use both PETSc include files and modules. At the beginning
    2275:       of every function and module definition you need something like

    2277: $
    2278: $#include "petsc/finclude/petscXXX.h"
    2279: $         use petscXXX

    2281:      You can declare PETSc variables using either of the following.

    2283: $    XXX variablename
    2284: $    type(tXXX) variablename

    2286:     For example,

    2288: $#include "petsc/finclude/petscvec.h"
    2289: $         use petscvec
    2290: $
    2291: $    Vec b
    2292: $    type(tVec) x

    2294:     Level: beginner

    2296: M*/

    2298: PETSC_EXTERN PetscErrorCode PetscGetArchType(char[],size_t);
    2299: PETSC_EXTERN PetscErrorCode PetscGetHostName(char[],size_t);
    2300: PETSC_EXTERN PetscErrorCode PetscGetUserName(char[],size_t);
    2301: PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[],size_t);
    2302: PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]);
    2303: PETSC_EXTERN PetscErrorCode PetscGetDate(char[],size_t);
    2304: PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t);
    2305: PETSC_EXTERN PetscErrorCode PetscGetVersionNumber(PetscInt*,PetscInt*,PetscInt*,PetscInt*);

    2307: PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt,PetscInt[]);
    2308: PETSC_EXTERN PetscErrorCode PetscSortedRemoveDupsInt(PetscInt*,PetscInt[]);
    2309: PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt*,PetscInt[]);
    2311: PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt*);
    2312: PETSC_EXTERN PetscErrorCode PetscFindMPIInt(PetscMPIInt, PetscInt, const PetscMPIInt[], PetscInt*);
    2313: PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt,const PetscInt[],PetscInt[]);
    2314: PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt,const char*[],PetscInt[]);
    2315: PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt,PetscInt[],PetscInt[]);
    2316: PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt,PetscInt[],PetscInt[],PetscInt[]);
    2317: PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt,PetscMPIInt[]);
    2318: PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt*,PetscMPIInt[]);
    2319: PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt,PetscMPIInt[],PetscMPIInt[]);
    2320: PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithIntArray(PetscMPIInt,PetscMPIInt[],PetscInt[]);
    2321: PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt,PetscInt[],PetscScalar[]);
    2322: PETSC_EXTERN PetscErrorCode PetscSortIntWithDataArray(PetscInt,PetscInt[],void*,size_t,void*);
    2323: PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt,PetscReal[]);
    2324: PETSC_EXTERN PetscErrorCode PetscSortRealWithArrayInt(PetscInt,PetscReal[],PetscInt[]);
    2325: PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt,const PetscReal[],PetscInt[]);
    2326: PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsReal(PetscInt*,PetscReal[]);
    2327: PETSC_EXTERN PetscErrorCode PetscFindReal(PetscReal,PetscInt,const PetscReal[],PetscReal,PetscInt*);
    2328: PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt,PetscInt,PetscScalar[],PetscInt[]);
    2329: PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt,PetscInt,PetscReal[],PetscInt[]);
    2330: PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt,const PetscBool [],const PetscInt[],PetscInt*,PetscInt**,PetscInt**,PetscInt**,PetscInt**);
    2331: PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt,const PetscInt[],const PetscInt[],PetscInt,const PetscInt[],const PetscInt[],PetscInt*,PetscInt**,PetscInt**);
    2332: PETSC_EXTERN PetscErrorCode PetscMergeIntArray(PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscInt*,PetscInt**);
    2333: PETSC_EXTERN PetscErrorCode PetscMergeMPIIntArray(PetscInt,const PetscMPIInt[],PetscInt,const PetscMPIInt[],PetscInt*,PetscMPIInt**);

    2335: PETSC_EXTERN PetscErrorCode PetscSetDisplay(void);
    2336: PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[],size_t);

    2338: /*J
    2339:     PetscRandomType - String with the name of a PETSc randomizer

    2341:    Level: beginner

    2343:    Notes:
    2344:    To use SPRNG or RANDOM123 you must have ./configure PETSc
    2345:    with the option --download-sprng or --download-random123

    2347: .seealso: PetscRandomSetType(), PetscRandom, PetscRandomCreate()
    2348: J*/
    2349: typedef const char* PetscRandomType;
    2350: #define PETSCRAND       "rand"
    2351: #define PETSCRAND48     "rand48"
    2352: #define PETSCSPRNG      "sprng"
    2353: #define PETSCRANDER48   "rander48"
    2354: #define PETSCRANDOM123  "random123"

    2356: /* Logging support */
    2357: PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID;

    2359: PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void);

    2361: /* Dynamic creation and loading functions */
    2362: PETSC_EXTERN PetscFunctionList PetscRandomList;

    2364: PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[],PetscErrorCode (*)(PetscRandom));
    2365: PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom, PetscRandomType);
    2366: PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom);
    2367: PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom, PetscRandomType*);
    2368: PETSC_STATIC_INLINE PetscErrorCode PetscRandomViewFromOptions(PetscRandom A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
    2369: PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom,PetscViewer);

    2371: PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm,PetscRandom*);
    2372: PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom,PetscScalar*);
    2373: PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom,PetscReal*);
    2374: PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom,PetscScalar*,PetscScalar*);
    2375: PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom,PetscScalar,PetscScalar);
    2376: PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom,unsigned long);
    2377: PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom,unsigned long *);
    2378: PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom);
    2379: PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom*);

    2381: PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[],char[],size_t);
    2382: PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[],char[],size_t);
    2383: PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[],size_t);
    2384: PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[],char[]);
    2385: PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[],size_t);
    2386: PETSC_EXTERN PetscErrorCode PetscTestFile(const char[],char,PetscBool *);
    2387: PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[],char,PetscBool *);
    2388: PETSC_EXTERN PetscErrorCode PetscMkdir(const char[]);
    2389: PETSC_EXTERN PetscErrorCode PetscMkdtemp(char[]);
    2390: PETSC_EXTERN PetscErrorCode PetscRMTree(const char[]);

    2392: PETSC_STATIC_INLINE PetscBool PetscBinaryBigEndian(void) {long _petsc_v = 1; return ((char*)&_petsc_v)[0] ? PETSC_FALSE : PETSC_TRUE;}

    2394: PETSC_EXTERN PetscErrorCode PetscBinaryRead(int,void*,PetscInt,PetscInt*,PetscDataType);
    2395: PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm,int,void*,PetscInt,PetscInt*,PetscDataType);
    2396: PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int,void*,PetscInt,PetscDataType,PetscBool);
    2397: PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm,int,void*,PetscInt,PetscDataType,PetscBool);
    2398: PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[],PetscFileMode,int *);
    2399: PETSC_EXTERN PetscErrorCode PetscBinaryClose(int);
    2400: PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm,PetscBool  *);
    2401: PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm,PetscBool  *);
    2402: PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm,char[],size_t);
    2403: PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm,const char[],char[],size_t,PetscBool *);
    2404: PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm,const char[],char[],size_t,PetscBool *);
    2405: #if defined(PETSC_USE_SOCKET_VIEWER)
    2406: PETSC_EXTERN PetscErrorCode PetscOpenSocket(const char[],int,int*);
    2407: #endif

    2409: PETSC_EXTERN PetscErrorCode PetscBinarySeek(int,off_t,PetscBinarySeekType,off_t*);
    2410: PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm,int,off_t,PetscBinarySeekType,off_t*);
    2411: PETSC_EXTERN PetscErrorCode PetscByteSwap(void *,PetscDataType,PetscInt);

    2413: PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]);
    2414: PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[],PetscBool );
    2415: PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void);
    2416: PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char*);
    2417: PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void);
    2418: PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void);

    2420: PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt*);
    2421: PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**);
    2422: PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**,PetscMPIInt**);
    2423: PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscInt***,MPI_Request**);
    2424: PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscScalar***,MPI_Request**);
    2425: PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt*,const void*,PetscMPIInt*,PetscMPIInt**,void*)
    2426:   PetscAttrMPIPointerWithType(6,3);
    2427: PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedF(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
    2428:                                                     PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
    2429:                                                     PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
    2430:   PetscAttrMPIPointerWithType(6,3);
    2431: PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedFReq(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
    2432:                                                        MPI_Request**,MPI_Request**,
    2433:                                                        PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
    2434:                                                        PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
    2435:   PetscAttrMPIPointerWithType(6,3);

    2437: PETSC_EXTERN const char *const PetscBuildTwoSidedTypes[];
    2438: PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm,PetscBuildTwoSidedType);
    2439: PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm,PetscBuildTwoSidedType*);

    2441: PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm,PetscBool*,PetscBool*);

    2443: PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject);

    2445: PETSC_EXTERN const char *const PetscSubcommTypes[];

    2447: struct _n_PetscSubcomm {
    2448:   MPI_Comm         parent;           /* parent communicator */
    2449:   MPI_Comm         dupparent;        /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */
    2450:   MPI_Comm         child;            /* the sub-communicator */
    2451:   PetscMPIInt      n;                /* num of subcommunicators under the parent communicator */
    2452:   PetscMPIInt      color;            /* color of processors belong to this communicator */
    2453:   PetscMPIInt      *subsize;         /* size of subcommunicator[color] */
    2454:   PetscSubcommType type;
    2455:   char             *subcommprefix;
    2456: };

    2458: PETSC_STATIC_INLINE MPI_Comm PetscSubcommParent(PetscSubcomm scomm) {return scomm->parent;}
    2459: PETSC_STATIC_INLINE MPI_Comm PetscSubcommChild(PetscSubcomm scomm) {return scomm->child;}
    2460: PETSC_STATIC_INLINE MPI_Comm PetscSubcommContiguousParent(PetscSubcomm scomm) {return scomm->dupparent;}
    2461: PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm,PetscSubcomm*);
    2462: PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm*);
    2463: PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm,PetscInt);
    2464: PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm,PetscSubcommType);
    2465: PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm,PetscMPIInt,PetscMPIInt);
    2466: PETSC_EXTERN PetscErrorCode PetscSubcommView(PetscSubcomm,PetscViewer);
    2467: PETSC_EXTERN PetscErrorCode PetscSubcommSetFromOptions(PetscSubcomm);
    2468: PETSC_EXTERN PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm,const char[]);

    2470: PETSC_EXTERN PetscErrorCode PetscHeapCreate(PetscInt,PetscHeap*);
    2471: PETSC_EXTERN PetscErrorCode PetscHeapAdd(PetscHeap,PetscInt,PetscInt);
    2472: PETSC_EXTERN PetscErrorCode PetscHeapPop(PetscHeap,PetscInt*,PetscInt*);
    2473: PETSC_EXTERN PetscErrorCode PetscHeapPeek(PetscHeap,PetscInt*,PetscInt*);
    2474: PETSC_EXTERN PetscErrorCode PetscHeapStash(PetscHeap,PetscInt,PetscInt);
    2475: PETSC_EXTERN PetscErrorCode PetscHeapUnstash(PetscHeap);
    2476: PETSC_EXTERN PetscErrorCode PetscHeapDestroy(PetscHeap*);
    2477: PETSC_EXTERN PetscErrorCode PetscHeapView(PetscHeap,PetscViewer);

    2479: PETSC_EXTERN PetscErrorCode PetscProcessPlacementView(PetscViewer);
    2480: PETSC_EXTERN PetscErrorCode PetscShmCommGet(MPI_Comm,PetscShmComm*);
    2481: PETSC_EXTERN PetscErrorCode PetscShmCommGlobalToLocal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
    2482: PETSC_EXTERN PetscErrorCode PetscShmCommLocalToGlobal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
    2483: PETSC_EXTERN PetscErrorCode PetscShmCommGetMpiShmComm(PetscShmComm,MPI_Comm*);

    2485: /* routines to better support OpenMP multithreading needs of some PETSc third party libraries */
    2486: PETSC_EXTERN PetscErrorCode PetscOmpCtrlCreate(MPI_Comm,PetscInt,PetscOmpCtrl*);
    2487: PETSC_EXTERN PetscErrorCode PetscOmpCtrlGetOmpComms(PetscOmpCtrl,MPI_Comm*,MPI_Comm*,PetscBool*);
    2488: PETSC_EXTERN PetscErrorCode PetscOmpCtrlDestroy(PetscOmpCtrl*);
    2489: PETSC_EXTERN PetscErrorCode PetscOmpCtrlBarrier(PetscOmpCtrl);
    2490: PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterBegin(PetscOmpCtrl);
    2491: PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterEnd(PetscOmpCtrl);

    2493: PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t,size_t,PetscSegBuffer*);
    2494: PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer*);
    2495: PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer,size_t,void*);
    2496: PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer,void*);
    2497: PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer,void*);
    2498: PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer,void*);
    2499: PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer,size_t*);
    2500: PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer,size_t);

    2504:  * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as
    2505:  * possible. */
    2506: PETSC_STATIC_INLINE PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg,size_t count,PetscInt *PETSC_RESTRICT *slot) {return PetscSegBufferGet(seg,count,(void**)slot);}

    2508: extern PetscOptionsHelpPrinted PetscOptionsHelpPrintedSingleton;
    2509: PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedDestroy(PetscOptionsHelpPrinted*);
    2510: PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCreate(PetscOptionsHelpPrinted*);
    2511: PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCheck(PetscOptionsHelpPrinted,const char*,const char*,PetscBool*);

    2513: #include <stdarg.h>
    2514: PETSC_EXTERN PetscErrorCode PetscVSNPrintf(char*,size_t,const char[],size_t*,va_list);
    2515: PETSC_EXTERN PetscErrorCode (*PetscVFPrintf)(FILE*,const char[],va_list);

    2517: PETSC_EXTERN PetscSegBuffer PetscCitationsList;

    2519: /*@C
    2520:       PetscCitationsRegister - Register a bibtex item to obtain credit for an implemented algorithm used in the code.

    2522:      Not Collective - only what is registered on rank 0 of PETSC_COMM_WORLD will be printed

    2524:      Input Parameters:
    2525: +      cite - the bibtex item, formated to displayed on multiple lines nicely
    2526: -      set - a boolean variable initially set to PETSC_FALSE; this is used to insure only a single registration of the citation

    2528:    Level: intermediate

    2530:    Not available from Fortran

    2532:      Options Database:
    2533: .     -citations [filename]   - print out the bibtex entries for the given computation
    2534: @*/
    2535: PETSC_STATIC_INLINE PetscErrorCode PetscCitationsRegister(const char cit[],PetscBool *set)
    2536: {
    2537:   size_t         len;
    2538:   char           *vstring;

    2542:   if (set && *set) return(0);
    2543:   PetscStrlen(cit,&len);
    2544:   PetscSegBufferGet(PetscCitationsList,len,&vstring);
    2545:   PetscArraycpy(vstring,cit,len);
    2546:   if (set) *set = PETSC_TRUE;
    2547:   return(0);
    2548: }

    2550: PETSC_EXTERN PetscErrorCode PetscURLShorten(const char[],char[],size_t);
    2551: PETSC_EXTERN PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm,char[],char[],size_t);
    2552: PETSC_EXTERN PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm,const char[],char[],size_t);
    2553: PETSC_EXTERN PetscErrorCode PetscGoogleDriveUpload(MPI_Comm,const char[],const char []);

    2555: PETSC_EXTERN PetscErrorCode PetscBoxAuthorize(MPI_Comm,char[],char[],size_t);
    2556: PETSC_EXTERN PetscErrorCode PetscBoxRefresh(MPI_Comm,const char[],char[],char[],size_t);

    2558: PETSC_EXTERN PetscErrorCode PetscGlobusGetTransfers(MPI_Comm,const char[],char[],size_t);

    2560: PETSC_EXTERN PetscErrorCode PetscTextBelt(MPI_Comm,const char[],const char[],PetscBool*);
    2561: PETSC_EXTERN PetscErrorCode PetscTellMyCell(MPI_Comm,const char[],const char[],PetscBool*);

    2563: PETSC_EXTERN PetscErrorCode PetscPullJSONValue(const char[],const char[],char[],size_t,PetscBool*);
    2564: PETSC_EXTERN PetscErrorCode PetscPushJSONValue(char[],const char[],const char[],size_t);

    2567: #if defined(PETSC_USE_DEBUG)
    2568: /*
    2569:    Verify that all processes in the communicator have called this from the same line of code
    2570:  */
    2571: PETSC_EXTERN PetscErrorCode PetscAllreduceBarrierCheck(MPI_Comm,PetscMPIInt,int,const char*,const char *);

    2573: /*MC
    2574:    MPIU_Allreduce - a PETSc replacement for MPI_Allreduce() that tries to determine if the call from all the MPI processes occur from the
    2575:                     same place in the PETSc code. This helps to detect bugs where different MPI processes follow different code paths
    2576:                     resulting in inconsistent and incorrect calls to MPI_Allreduce().

    2578:    Collective

    2580:    Synopsis:
    2581:      #include <petscsys.h>
    2582:      PetscErrorCode MPIU_Allreduce(void *indata,void *outdata,PetscMPIInt count,MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);

    2584:    Input Parameters:
    2585: +  indata - pointer to the input data to be reduced
    2586: .  count - the number of MPI data items in indata and outdata
    2587: .  datatype - the MPI datatype, for example MPI_INT
    2588: .  op - the MPI operation, for example MPI_SUM
    2589: -  comm - the MPI communicator on which the operation occurs

    2591:    Output Parameter:
    2592: .  outdata - the reduced values

    2594:    Notes:
    2595:    In optimized mode this directly calls MPI_Allreduce()

    2597:    Level: developer

    2599: .seealso: MPI_Allreduce()
    2600: M*/
    2601: #define MPIU_Allreduce(a,b,c,d,e,fcomm) (PetscAllreduceBarrierCheck(fcomm,c,__LINE__,PETSC_FUNCTION_NAME,__FILE__) || MPI_Allreduce(a,b,c,d,e,fcomm))
    2602: #else
    2603: #define MPIU_Allreduce(a,b,c,d,e,fcomm) MPI_Allreduce(a,b,c,d,e,fcomm)
    2604: #endif

    2606: #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
    2607: PETSC_EXTERN PetscErrorCode MPIU_Win_allocate_shared(MPI_Aint,PetscMPIInt,MPI_Info,MPI_Comm,void*,MPI_Win*);
    2608: PETSC_EXTERN PetscErrorCode MPIU_Win_shared_query(MPI_Win,PetscMPIInt,MPI_Aint*,PetscMPIInt*,void*);
    2609: #endif

    2611: /*
    2612:     Returned from PETSc functions that are called from MPI, such as related to attributes
    2613: */
    2614: PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CLASS;
    2615: PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CODE;

    2617: #endif