Actual source code: dmmbio.cxx

      1: #include <petsc/private/dmmbimpl.h>
      2: #include <petscdmmoab.h>

      4: static PetscErrorCode DMMoab_GetWriteOptions_Private(PetscInt fsetid, PetscInt numproc, PetscInt dim, MoabWriteMode mode, PetscInt dbglevel, const char* dm_opts, const char* extra_opts, const char** write_opts)
      5: {
      7:   char           *wopts;
      8:   char           wopts_par[PETSC_MAX_PATH_LEN];
      9:   char           wopts_parid[PETSC_MAX_PATH_LEN];
     10:   char           wopts_dbg[PETSC_MAX_PATH_LEN];

     13:   PetscMalloc1(PETSC_MAX_PATH_LEN, &wopts);
     14:   PetscMemzero(&wopts_par, PETSC_MAX_PATH_LEN);
     15:   PetscMemzero(&wopts_parid, PETSC_MAX_PATH_LEN);
     16:   PetscMemzero(&wopts_dbg, PETSC_MAX_PATH_LEN);

     18:   // do parallel read unless only one processor
     19:   if (numproc > 1) {
     20:     PetscSNPrintf(wopts_par, PETSC_MAX_PATH_LEN, "PARALLEL=%s;", MoabWriteModes[mode]);
     21:     if (fsetid >= 0) {
     22:       PetscSNPrintf(wopts_parid, PETSC_MAX_PATH_LEN, "PARALLEL_COMM=%d;", fsetid);
     23:     }
     24:   }

     26:   if (dbglevel) {
     27:     PetscSNPrintf(wopts_dbg, PETSC_MAX_PATH_LEN, "CPUTIME;DEBUG_IO=%d;", dbglevel);
     28:   }

     30:   PetscSNPrintf(wopts, PETSC_MAX_PATH_LEN, "%s%s%s%s%s", wopts_par, wopts_parid, wopts_dbg, (extra_opts ? extra_opts : ""), (dm_opts ? dm_opts : ""));
     31:   *write_opts = wopts;
     32:   return(0);
     33: }

     36: /*@C
     37:   DMMoabOutput - Output the solution vectors that are stored in the DMMoab object as tags
     38:   along with the complete mesh data structure in the native H5M or VTK format. The H5M output file
     39:   can be visualized directly with Paraview (if compiled with appropriate plugin) or converted
     40:   with MOAB/tools/mbconvert to a VTK or Exodus file.

     42:   This routine can also be used for check-pointing purposes to store a complete history of
     43:   the solution along with any other necessary data to restart computations.

     45:   Collective

     47:   Input Parameters:
     48: + dm     - the discretization manager object containing solution in MOAB tags.
     49: .  filename - the name of the output file: e.g., poisson.h5m
     50: -  usrwriteopts - the parallel write options needed for serializing a MOAB mesh database. Can be NULL.
     51:    Reference (Parallel Mesh Initialization: http://ftp.mcs.anl.gov/pub/fathom/moab-docs/contents.html#fivetwo)

     53:   Level: intermediate

     55: .seealso: DMMoabLoadFromFile(), DMMoabSetGlobalFieldVector()
     56: @*/
     57: PetscErrorCode DMMoabOutput(DM dm, const char* filename, const char* usrwriteopts)
     58: {
     59:   DM_Moab         *dmmoab;
     60:   const char      *writeopts;
     61:   PetscBool       isftype;
     62:   PetscErrorCode  ierr;
     63:   moab::ErrorCode merr;

     67:   dmmoab = (DM_Moab*)(dm)->data;

     69:   PetscStrendswith(filename, "h5m", &isftype);

     71:   /* add mesh loading options specific to the DM */
     72:   if (isftype) {
     73: #ifdef MOAB_HAVE_MPI
     74:     DMMoab_GetWriteOptions_Private(dmmoab->pcomm->get_id(), dmmoab->pcomm->size(), dmmoab->dim, dmmoab->write_mode,
     75:                                           dmmoab->rw_dbglevel, dmmoab->extra_write_options, usrwriteopts, &writeopts);
     76: #else
     77:     DMMoab_GetWriteOptions_Private(0, 1, dmmoab->dim, dmmoab->write_mode,
     78:                                           dmmoab->rw_dbglevel, dmmoab->extra_write_options, usrwriteopts, &writeopts);
     79: #endif
     80:     PetscInfo2(dm, "Writing file %s with options: %s\n", filename, writeopts);
     81:   }
     82:   else {
     83:     writeopts = NULL;
     84:   }

     86:   /* output file, using parallel write */
     87:   merr = dmmoab->mbiface->write_file(filename, NULL, writeopts, &dmmoab->fileset, 1); MBERRVM(dmmoab->mbiface, "Writing output of DMMoab failed.", merr);
     88:   PetscFree(writeopts);
     89:   return(0);
     90: }