Actual source code: petscis.h
petsc-3.4.2 2013-07-02

      1: /*
      2:    An index set is a generalization of a subset of integers.  Index sets
      3:    are used for defining scatters and gathers.
      4: */
      7: #include <petscsys.h>
      8: #include <petscviewertypes.h>
      9: #include <petscsftypes.h>

     11: #define IS_FILE_CLASSID 1211218
     12: PETSC_EXTERN PetscClassId IS_CLASSID;

     14: PETSC_EXTERN PetscErrorCode ISInitializePackage(void);

     16: /*S
     17:      IS - Abstract PETSc object that allows indexing.

     19:    Level: beginner

     21:   Concepts: indexing, stride

     23: .seealso:  ISCreateGeneral(), ISCreateBlock(), ISCreateStride(), ISGetIndices(), ISDestroy()
     24: S*/
     25: typedef struct _p_IS* IS;

     27: /*J
     28:     ISType - String with the name of a PETSc index set type

     30:    Level: beginner

     32: .seealso: ISSetType(), IS, ISCreate(), ISRegister()
     33: J*/
     34: typedef const char* ISType;
     35: #define ISGENERAL      "general"
     36: #define ISSTRIDE       "stride"
     37: #define ISBLOCK        "block"

     39: /* Dynamic creation and loading functions */
     40: PETSC_EXTERN PetscFunctionList ISList;
     41: PETSC_EXTERN PetscBool         ISRegisterAllCalled;
     42: PETSC_EXTERN PetscErrorCode ISSetType(IS, ISType);
     43: PETSC_EXTERN PetscErrorCode ISGetType(IS, ISType *);
     44: PETSC_EXTERN PetscErrorCode ISRegister(const char[],PetscErrorCode (*)(IS));
     45: PETSC_EXTERN PetscErrorCode ISRegisterAll(void);
     46: PETSC_EXTERN PetscErrorCode ISCreate(MPI_Comm,IS*);

     48: /*
     49:     Default index set data structures that PETSc provides.
     50: */
     51: PETSC_EXTERN PetscErrorCode ISCreateGeneral(MPI_Comm,PetscInt,const PetscInt[],PetscCopyMode,IS *);
     52: PETSC_EXTERN PetscErrorCode ISGeneralSetIndices(IS,PetscInt,const PetscInt[],PetscCopyMode);
     53: PETSC_EXTERN PetscErrorCode ISCreateBlock(MPI_Comm,PetscInt,PetscInt,const PetscInt[],PetscCopyMode,IS *);
     54: PETSC_EXTERN PetscErrorCode ISBlockSetIndices(IS,PetscInt,PetscInt,const PetscInt[],PetscCopyMode);
     55: PETSC_EXTERN PetscErrorCode ISCreateStride(MPI_Comm,PetscInt,PetscInt,PetscInt,IS *);
     56: PETSC_EXTERN PetscErrorCode ISStrideSetStride(IS,PetscInt,PetscInt,PetscInt);

     58: PETSC_EXTERN PetscErrorCode ISDestroy(IS*);
     59: PETSC_EXTERN PetscErrorCode ISSetPermutation(IS);
     60: PETSC_EXTERN PetscErrorCode ISPermutation(IS,PetscBool *);
     61: PETSC_EXTERN PetscErrorCode ISSetIdentity(IS);
     62: PETSC_EXTERN PetscErrorCode ISIdentity(IS,PetscBool *);
     63: PETSC_EXTERN PetscErrorCode ISContiguousLocal(IS,PetscInt,PetscInt,PetscInt*,PetscBool*);

     65: PETSC_EXTERN PetscErrorCode ISGetIndices(IS,const PetscInt *[]);
     66: PETSC_EXTERN PetscErrorCode ISRestoreIndices(IS,const PetscInt *[]);
     67: PETSC_EXTERN PetscErrorCode ISGetTotalIndices(IS,const PetscInt *[]);
     68: PETSC_EXTERN PetscErrorCode ISRestoreTotalIndices(IS,const PetscInt *[]);
     69: PETSC_EXTERN PetscErrorCode ISGetNonlocalIndices(IS,const PetscInt *[]);
     70: PETSC_EXTERN PetscErrorCode ISRestoreNonlocalIndices(IS,const PetscInt *[]);
     71: PETSC_EXTERN PetscErrorCode ISGetNonlocalIS(IS, IS *is);
     72: PETSC_EXTERN PetscErrorCode ISRestoreNonlocalIS(IS, IS *is);
     73: PETSC_EXTERN PetscErrorCode ISGetSize(IS,PetscInt *);
     74: PETSC_EXTERN PetscErrorCode ISGetLocalSize(IS,PetscInt *);
     75: PETSC_EXTERN PetscErrorCode ISInvertPermutation(IS,PetscInt,IS*);
     76: PETSC_EXTERN PetscErrorCode ISView(IS,PetscViewer);
     77: PETSC_EXTERN PetscErrorCode ISEqual(IS,IS,PetscBool  *);
     78: PETSC_EXTERN PetscErrorCode ISSort(IS);
     79: PETSC_EXTERN PetscErrorCode ISSorted(IS,PetscBool  *);
     80: PETSC_EXTERN PetscErrorCode ISDifference(IS,IS,IS*);
     81: PETSC_EXTERN PetscErrorCode ISSum(IS,IS,IS*);
     82: PETSC_EXTERN PetscErrorCode ISExpand(IS,IS,IS*);
     83: PETSC_EXTERN PetscErrorCode ISGetMinMax(IS,PetscInt*,PetscInt*);

     85: PETSC_EXTERN PetscErrorCode ISBlockGetIndices(IS,const PetscInt *[]);
     86: PETSC_EXTERN PetscErrorCode ISBlockRestoreIndices(IS,const PetscInt *[]);
     87: PETSC_EXTERN PetscErrorCode ISBlockGetLocalSize(IS,PetscInt *);
     88: PETSC_EXTERN PetscErrorCode ISBlockGetSize(IS,PetscInt *);
     89: PETSC_EXTERN PetscErrorCode ISGetBlockSize(IS,PetscInt*);
     90: PETSC_EXTERN PetscErrorCode ISSetBlockSize(IS,PetscInt);

     92: PETSC_EXTERN PetscErrorCode ISStrideGetInfo(IS,PetscInt *,PetscInt*);

     94: PETSC_EXTERN PetscErrorCode ISToGeneral(IS);

     96: PETSC_EXTERN PetscErrorCode ISDuplicate(IS,IS*);
     97: PETSC_EXTERN PetscErrorCode ISCopy(IS,IS);
     98: PETSC_EXTERN PetscErrorCode ISAllGather(IS,IS*);
     99: PETSC_EXTERN PetscErrorCode ISComplement(IS,PetscInt,PetscInt,IS*);
    100: PETSC_EXTERN PetscErrorCode ISConcatenate(MPI_Comm,PetscInt,const IS[],IS*);
    101: PETSC_EXTERN PetscErrorCode ISListToPair(MPI_Comm,PetscInt, IS[],IS*,IS*);
    102: PETSC_EXTERN PetscErrorCode ISPairToList(IS,IS,PetscInt*, IS *[]);
    103: PETSC_EXTERN PetscErrorCode ISEmbed(IS,IS,PetscBool,IS*);
    104: PETSC_EXTERN PetscErrorCode ISOnComm(IS,MPI_Comm,PetscCopyMode,IS*);

    106: /* --------------------------------------------------------------------------*/
    107: PETSC_EXTERN PetscClassId IS_LTOGM_CLASSID;

    109: /*S
    110:    ISLocalToGlobalMapping - mappings from an arbitrary
    111:       local ordering from 0 to n-1 to a global PETSc ordering
    112:       used by a vector or matrix.

    114:    Level: intermediate

    116:    Note: mapping from Local to Global is scalable; but Global
    117:   to Local may not be if the range of global values represented locally
    118:   is very large.

    120:    Note: the ISLocalToGlobalMapping is actually a private object; it is included
    121:   here for the inline function ISLocalToGlobalMappingApply() to allow it to be inlined since
    122:   it is used so often.

    124: .seealso:  ISLocalToGlobalMappingCreate()
    125: S*/
    126: typedef struct _p_ISLocalToGlobalMapping* ISLocalToGlobalMapping;

    128: /*E
    129:     ISGlobalToLocalMappingType - Indicates if missing global indices are

    131:    IS_GTOLM_MASK - missing global indices are replaced with -1
    132:    IS_GTOLM_DROP - missing global indices are dropped

    134:    Level: beginner

    136: .seealso: ISGlobalToLocalMappingApply()

    138: E*/
    139: typedef enum {IS_GTOLM_MASK,IS_GTOLM_DROP} ISGlobalToLocalMappingType;

    141: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreate(MPI_Comm,PetscInt,const PetscInt[],PetscCopyMode,ISLocalToGlobalMapping*);
    142: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateIS(IS,ISLocalToGlobalMapping *);
    143: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateSF(PetscSF,PetscInt,ISLocalToGlobalMapping*);
    144: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingView(ISLocalToGlobalMapping,PetscViewer);
    145: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingDestroy(ISLocalToGlobalMapping*);
    146: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyIS(ISLocalToGlobalMapping,IS,IS*);
    147: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
    148: PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApply(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
    149: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetSize(ISLocalToGlobalMapping,PetscInt*);
    150: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
    151: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
    152: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetIndices(ISLocalToGlobalMapping,const PetscInt**);
    153: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreIndices(ISLocalToGlobalMapping,const PetscInt**);
    154: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingBlock(ISLocalToGlobalMapping,PetscInt,ISLocalToGlobalMapping*);
    155: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingUnBlock(ISLocalToGlobalMapping,PetscInt,ISLocalToGlobalMapping*);
    156: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingConcatenate(MPI_Comm,PetscInt,const ISLocalToGlobalMapping[],ISLocalToGlobalMapping*);
    157: PETSC_EXTERN PetscErrorCode ISG2LMapApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);

    159: /* --------------------------------------------------------------------------*/
    160: /*E
    161:     ISColoringType - determines if the coloring is for the entire parallel grid/graph/matrix
    162:                      or for just the local ghosted portion

    164:     Level: beginner

    166: $   IS_COLORING_GLOBAL - does not include the colors for ghost points, this is used when the function
    167: $                        is called synchronously in parallel. This requires generating a "parallel coloring".
    168: $   IS_COLORING_GHOSTED - includes colors for ghost points, this is used when the function can be called
    169: $                         seperately on individual processes with the ghost points already filled in. Does not
    170: $                         require a "parallel coloring", rather each process colors its local + ghost part.
    171: $                         Using this can result in much less parallel communication. In the paradigm of
    172: $                         DMGetLocalVector() and DMGetGlobalVector() this could be called IS_COLORING_LOCAL

    174: .seealso: DMCreateColoring()
    175: E*/
    176: typedef enum {IS_COLORING_GLOBAL,IS_COLORING_GHOSTED} ISColoringType;
    177: PETSC_EXTERN const char *const ISColoringTypes[];
    178: typedef unsigned PETSC_IS_COLOR_VALUE_TYPE ISColoringValue;
    179: PETSC_EXTERN PetscErrorCode ISAllGatherColors(MPI_Comm,PetscInt,ISColoringValue*,PetscInt*,ISColoringValue*[]);

    181: /*S
    182:      ISColoring - sets of IS's that define a coloring
    183:               of the underlying indices

    185:    Level: intermediate

    187:     Notes:
    188:         One should not access the *is records below directly because they may not yet
    189:     have been created. One should use ISColoringGetIS() to make sure they are
    190:     created when needed.

    192:     Developer Note: this is not a PetscObject

    194: .seealso:  ISColoringCreate(), ISColoringGetIS(), ISColoringView(), ISColoringGetIS()
    195: S*/
    196: struct _n_ISColoring {
    197:   PetscInt        refct;
    198:   PetscInt        n;                /* number of colors */
    199:   IS              *is;              /* for each color indicates columns */
    200:   MPI_Comm        comm;
    201:   ISColoringValue *colors;          /* for each column indicates color */
    202:   PetscInt        N;                /* number of columns */
    203:   ISColoringType  ctype;
    204: };
    205: typedef struct _n_ISColoring* ISColoring;

    207: PETSC_EXTERN PetscErrorCode ISColoringCreate(MPI_Comm,PetscInt,PetscInt,const ISColoringValue[],ISColoring*);
    208: PETSC_EXTERN PetscErrorCode ISColoringDestroy(ISColoring*);
    209: PETSC_EXTERN PetscErrorCode ISColoringView(ISColoring,PetscViewer);
    210: PETSC_EXTERN PetscErrorCode ISColoringGetIS(ISColoring,PetscInt*,IS*[]);
    211: PETSC_EXTERN PetscErrorCode ISColoringRestoreIS(ISColoring,IS*[]);
    212: PETSC_EXTERN PetscErrorCode ISColoringReference(ISColoring);
    213: PETSC_EXTERN PetscErrorCode ISColoringSetType(ISColoring,ISColoringType);

    216: /* --------------------------------------------------------------------------*/

    218: PETSC_EXTERN PetscErrorCode ISPartitioningToNumbering(IS,IS*);
    219: PETSC_EXTERN PetscErrorCode ISPartitioningCount(IS,PetscInt,PetscInt[]);

    221: PETSC_EXTERN PetscErrorCode ISCompressIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
    222: PETSC_EXTERN PetscErrorCode ISCompressIndicesSorted(PetscInt,PetscInt,PetscInt,const IS[],IS[]);
    223: PETSC_EXTERN PetscErrorCode ISExpandIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);

    225: /*S
    226:      PetscLayout - defines layout of vectors and matrices across processes (which rows are owned by which processes)

    228:    Level: developer

    231: .seealso:  PetscLayoutCreate(), PetscLayoutDestroy()
    232: S*/
    233: typedef struct _n_PetscLayout* PetscLayout;
    234: struct _n_PetscLayout{
    235:   MPI_Comm               comm;
    236:   PetscInt               n,N;         /* local, global vector size */
    237:   PetscInt               rstart,rend; /* local start, local end + 1 */
    238:   PetscInt               *range;      /* the offset of each processor */
    239:   PetscInt               bs;          /* number of elements in each block (generally for multi-component problems) Do NOT multiply above numbers by bs */
    240:   PetscInt               refcnt;      /* MPI Vecs obtained with VecDuplicate() and from MatGetVecs() reuse map of input object */
    241:   ISLocalToGlobalMapping mapping;     /* mapping used in Vec/MatSetValuesLocal() */
    242:   ISLocalToGlobalMapping bmapping;    /* mapping used in Vec/MatSetValuesBlockedLocal() */
    243:   PetscInt               *trstarts;   /* local start for each thread */
    244: };

    246: PETSC_EXTERN PetscErrorCode PetscLayoutCreate(MPI_Comm,PetscLayout*);
    247: PETSC_EXTERN PetscErrorCode PetscLayoutSetUp(PetscLayout);
    248: PETSC_EXTERN PetscErrorCode PetscLayoutDestroy(PetscLayout*);
    249: PETSC_EXTERN PetscErrorCode PetscLayoutDuplicate(PetscLayout,PetscLayout*);
    250: PETSC_EXTERN PetscErrorCode PetscLayoutReference(PetscLayout,PetscLayout*);
    251: PETSC_EXTERN PetscErrorCode PetscLayoutSetLocalSize(PetscLayout,PetscInt);
    252: PETSC_EXTERN PetscErrorCode PetscLayoutGetLocalSize(PetscLayout,PetscInt *);
    253: PETSC_EXTERN PetscErrorCode PetscLayoutSetSize(PetscLayout,PetscInt);
    254: PETSC_EXTERN PetscErrorCode PetscLayoutGetSize(PetscLayout,PetscInt *);
    255: PETSC_EXTERN PetscErrorCode PetscLayoutSetBlockSize(PetscLayout,PetscInt);
    256: PETSC_EXTERN PetscErrorCode PetscLayoutGetBlockSize(PetscLayout,PetscInt*);
    257: PETSC_EXTERN PetscErrorCode PetscLayoutGetRange(PetscLayout,PetscInt *,PetscInt *);
    258: PETSC_EXTERN PetscErrorCode PetscLayoutGetRanges(PetscLayout,const PetscInt *[]);
    259: PETSC_EXTERN PetscErrorCode PetscLayoutSetISLocalToGlobalMapping(PetscLayout,ISLocalToGlobalMapping);
    260: PETSC_EXTERN PetscErrorCode PetscLayoutSetISLocalToGlobalMappingBlock(PetscLayout,ISLocalToGlobalMapping);
    261: PETSC_EXTERN PetscErrorCode PetscSFSetGraphLayout(PetscSF,PetscLayout,PetscInt,const PetscInt*,PetscCopyMode,const PetscInt*);

    265: /*@C
    266:      PetscLayoutFindOwner - Find the owning rank for a global index

    268:     Not Collective

    270:    Input Parameters:
    271: +    map - the layout
    272: -    idx - global index to find the owner of

    274:    Output Parameter:
    275: .    owner - the owning rank

    277:    Level: developer

    279:     Fortran Notes:
    280:       Not available from Fortran

    282: @*/
    283: PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwner(PetscLayout map,PetscInt idx,PetscInt *owner)
    284: {
    286:   PetscMPIInt    lo = 0,hi,t;

    289:   *owner = -1;                  /* GCC erroneously issues warning about possibly uninitialized use when error condition */
    290:   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
    291:   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
    292:   MPI_Comm_size(map->comm,&hi);
    293:   while (hi - lo > 1) {
    294:     t = lo + (hi - lo) / 2;
    295:     if (idx < map->range[t]) hi = t;
    296:     else                     lo = t;
    297:   }
    298:   *owner = lo;
    299:   return(0);
    300: }

    304: /*@C
    305:      PetscLayoutFindOwnerIndex - Find the owning rank and the local index for a global index

    307:     Not Collective

    309:    Input Parameters:
    310: +    map   - the layout
    311: -    idx   - global index to find the owner of

    313:    Output Parameter:
    314: +    owner - the owning rank
    315: -    lidx  - local index used by the owner for idx

    317:    Level: developer

    319:     Fortran Notes:
    320:       Not available from Fortran

    322: @*/
    323: PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwnerIndex(PetscLayout map,PetscInt idx,PetscInt *owner, PetscInt *lidx)
    324: {
    326:   PetscMPIInt    lo = 0,hi,t;

    329:   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
    330:   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
    331:   MPI_Comm_size(map->comm,&hi);
    332:   while (hi - lo > 1) {
    333:     t = lo + (hi - lo) / 2;
    334:     if (idx < map->range[t]) hi = t;
    335:     else                     lo = t;
    336:   }
    337:   *owner = lo;
    338:   *lidx  = idx-map->range[lo];
    339:   return(0);
    340: }

    342: PETSC_EXTERN PetscClassId PETSC_SECTION_CLASSID;

    344: /*S
    345:   PetscSection - Mapping from integers in a designated range to contiguous sets of integers.

    347:   In contrast to IS, which maps from integers to single integers, the range of a PetscSection is in the space of
    348:   contiguous sets of integers. These ranges are frequently interpreted as domains of other array-like objects,
    349:   especially other PetscSections, Vecs, and ISs. The domain is set with PetscSectionSetChart() and does not need to
    350:   start at 0. For each point in the domain of a PetscSection, the output set is represented through an offset and a
    351:   count, which are set using PetscSectionSetOffset() and PetscSectionSetDof() respectively. Lookup is typically using
    352:   accessors or routines like VecGetValuesSection().

    354:   Level: developer

    356: .seealso:  PetscSectionCreate(), PetscSectionDestroy()
    357: S*/
    358: typedef struct _p_PetscSection *PetscSection;
    359: PETSC_EXTERN PetscErrorCode PetscSectionCreate(MPI_Comm,PetscSection*);
    360: PETSC_EXTERN PetscErrorCode PetscSectionClone(PetscSection, PetscSection*);
    361: PETSC_EXTERN PetscErrorCode PetscSectionGetNumFields(PetscSection, PetscInt *);
    362: PETSC_EXTERN PetscErrorCode PetscSectionSetNumFields(PetscSection, PetscInt);
    363: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldName(PetscSection, PetscInt, const char *[]);
    364: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldName(PetscSection, PetscInt, const char []);
    365: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldComponents(PetscSection, PetscInt, PetscInt *);
    366: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldComponents(PetscSection, PetscInt, PetscInt);
    367: PETSC_EXTERN PetscErrorCode PetscSectionGetChart(PetscSection, PetscInt *, PetscInt *);
    368: PETSC_EXTERN PetscErrorCode PetscSectionSetChart(PetscSection, PetscInt, PetscInt);
    369: PETSC_EXTERN PetscErrorCode PetscSectionGetDof(PetscSection, PetscInt, PetscInt*);
    370: PETSC_EXTERN PetscErrorCode PetscSectionSetDof(PetscSection, PetscInt, PetscInt);
    371: PETSC_EXTERN PetscErrorCode PetscSectionAddDof(PetscSection, PetscInt, PetscInt);
    372: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt*);
    373: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
    374: PETSC_EXTERN PetscErrorCode PetscSectionAddFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
    375: PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintDof(PetscSection, PetscInt, PetscInt*);
    376: PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintDof(PetscSection, PetscInt, PetscInt);
    377: PETSC_EXTERN PetscErrorCode PetscSectionAddConstraintDof(PetscSection, PetscInt, PetscInt);
    378: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt*);
    379: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
    380: PETSC_EXTERN PetscErrorCode PetscSectionAddFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
    381: PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintIndices(PetscSection, PetscInt, const PetscInt**);
    382: PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintIndices(PetscSection, PetscInt, const PetscInt*);
    383: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt**);
    384: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt*);
    385: PETSC_EXTERN PetscErrorCode PetscSectionSetUpBC(PetscSection);
    386: PETSC_EXTERN PetscErrorCode PetscSectionSetUp(PetscSection);
    387: PETSC_EXTERN PetscErrorCode PetscSectionGetMaxDof(PetscSection, PetscInt*);
    388: PETSC_EXTERN PetscErrorCode PetscSectionGetStorageSize(PetscSection, PetscInt*);
    389: PETSC_EXTERN PetscErrorCode PetscSectionGetConstrainedStorageSize(PetscSection, PetscInt*);
    390: PETSC_EXTERN PetscErrorCode PetscSectionGetOffset(PetscSection, PetscInt, PetscInt*);
    391: PETSC_EXTERN PetscErrorCode PetscSectionSetOffset(PetscSection, PetscInt, PetscInt);
    392: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt*);
    393: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt);
    394: PETSC_EXTERN PetscErrorCode PetscSectionGetOffsetRange(PetscSection, PetscInt *, PetscInt *);
    395: PETSC_EXTERN PetscErrorCode PetscSectionView(PetscSection, PetscViewer);
    396: PETSC_EXTERN PetscErrorCode PetscSectionReset(PetscSection);
    397: PETSC_EXTERN PetscErrorCode PetscSectionDestroy(PetscSection*);
    398: PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSection(PetscSection, PetscSF, PetscBool, PetscSection *);
    399: PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSectionCensored(PetscSection, PetscSF, PetscBool, PetscInt, const PetscInt [], PetscSection *);
    400: PETSC_EXTERN PetscErrorCode PetscSectionCreateSubsection(PetscSection, PetscInt, PetscInt [], PetscSection *);
    401: PETSC_EXTERN PetscErrorCode PetscSectionCreateSubmeshSection(PetscSection, IS, PetscSection *);
    402: PETSC_EXTERN PetscErrorCode PetscSectionGetPointLayout(MPI_Comm, PetscSection, PetscLayout *);
    403: PETSC_EXTERN PetscErrorCode PetscSectionGetValueLayout(MPI_Comm, PetscSection, PetscLayout *);

    405: /* PetscSF support */
    406: PETSC_EXTERN PetscErrorCode PetscSFConvertPartition(PetscSF, PetscSection, IS, ISLocalToGlobalMapping *, PetscSF *);
    407: PETSC_EXTERN PetscErrorCode PetscSFCreateRemoteOffsets(PetscSF, PetscSection, PetscSection, PetscInt **);
    408: PETSC_EXTERN PetscErrorCode PetscSFDistributeSection(PetscSF, PetscSection, PetscInt **, PetscSection);
    409: PETSC_EXTERN PetscErrorCode PetscSFCreateSectionSF(PetscSF, PetscSection, PetscInt [], PetscSection, PetscSF *);

    411: /* Reset __FUNCT__ in case the user does not define it themselves */

    415: #endif