Actual source code: dmmbimpl.h
petsc-3.12.1 2019-10-22
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      1: #if !defined(_DMMBIMPL_H)
      2: #define _DMMBIMPL_H

      4:  #include <petscdmmoab.h>
      5: #include "petsc/private/dmimpl.h"

      7: /* This is an integer map, in addition it is also a container class
      8:    Design points:
      9:      - Low storage is the most important design point
     10:      - We want flexible insertion and deletion
     11:      - We can live with O(log) query, but we need O(1) iteration over strata
     12: */
     13: typedef struct {
     14:   moab::Interface    *mbiface;
     15: #ifdef MOAB_HAVE_MPI
     16:   moab::ParallelComm *pcomm;
     17: #endif
     18:   moab::Range        *tag_range; /* entities to which this tag applies */
     19:   moab::Tag           tag;
     20:   PetscInt            tag_size;
     21:   PetscBool           new_tag;
     22:   PetscBool           is_global_vec;
     23:   PetscBool           is_native_vec;
     24:   Vec                 local;
     25: } Vec_MOAB;

     27: namespace moab {
     28: class NestedRefine;
     29: }

     31: typedef struct {
     32:   /* common data */
     33:   PetscInt                dim;                            /* Current topological dimension handled by DMMoab */
     34:   PetscInt                bs;                             /* Block size that controls the strided vs interlaced configuration in discrete systems -
     35:                                                              This affects the layout and hence the degree-of-freedom of the different fields (components) */

     37:   PetscInt               *dfill, *ofill;                  /* The diagonal and off-diagonal block-fill to indicate coupling between components */
     38:   PetscInt               *materials;                      /* The array that caches the material data for each element */

     40:   PetscInt                numFields;
     41:   const char              **fieldNames;

     43:   /* level specific data */
     44:   PetscInt                n, nloc, nghost;                /* Number of global, local only and shared vertices for current partition */
     45:   PetscInt                nele, neleloc, neleghost;       /* Number of global, local only and shared elements for current partition */
     46:   PetscInt                *gsindices;                     /* Global ID for all local+ghosted vertices */
     47:   PetscInt                *gidmap, *lidmap;               /* Global ID indices, Local ID indices, field-based local map, field-based global map */
     48:   PetscInt                seqstart, seqend;               /* Local start and end entity IDs for vertices */
     49:   PetscInt                vstart, vend;                   /* Global start and end index for distributed Vec */
     50:   PetscInt                nghostrings;                    /* Number of ghost ring layers */
     51:   PetscInt                gminmax[2], lminmax[2];         /* Local and global min/max in the ID sequence */
     52:   PetscInt                refct;

     54:   /* store the mapping information */
     55:   ISLocalToGlobalMapping  ltog_map;
     56:   VecScatter              ltog_sendrecv;

     58:   /* MOAB objects cached internally in DMMoab */

     60:   /* common data */
     61:   moab::Interface         *mbiface;                       /* MOAB Interface/Core reference */
     62: #ifdef MOAB_HAVE_MPI
     63:   moab::ParallelComm      *pcomm;                         /* MOAB ParallelComm reference */
     64: #endif
     65:   moab::Tag               ltog_tag;                       /* MOAB supports "global id" tags */
     66:   moab::Tag               material_tag;                   /* MOAB supports "material_set" tags */
     67:   PetscBool               icreatedinstance;               /* true if DM created moab instance internally, will destroy instance in DMDestroy */

     69:   /* store options to customize DMMoab I/O */
     70:   PetscInt                rw_dbglevel;
     71:   PetscBool               partition_by_rank;
     72:   char                    extra_read_options[PETSC_MAX_PATH_LEN];
     73:   char                    extra_write_options[PETSC_MAX_PATH_LEN];
     74:   MoabReadMode            read_mode;
     75:   MoabWriteMode           write_mode;

     77:   /* level specific data */
     78:   moab::Range             *vowned, *vghost, *vlocal;      /* Vertex entities: strictly owned, strictly ghosted, owned+ghosted */
     79:   moab::Range             *elocal, *eghost;               /* Topological dimensional entities: strictly owned, strictly ghosted */
     80:   moab::Range             *bndyvtx, *bndyfaces, *bndyelems; /* Boundary entities: skin vertices, skin faces and elements on the outer skin */
     81:   moab::EntityHandle      fileset;                        /* The Global set to which all local entities belong */

     83:   /* level hierarchy in MOAB */
     84:   moab::NestedRefine     *hierarchy;
     85:   PetscInt                nhlevels, hlevel;
     86:   moab::EntityHandle     *hsets;

     88:   /* Sub-mesh level data-strucuture */
     89:   DM                     *parent;

     91: } DM_Moab;

     93: typedef struct {
     94:   DM_Moab             *pdmmoab;
     95:   moab::NestedRefine  *hierarchy;
     96:   PetscInt             nhlevels, hlevel;
     97:   moab::EntityHandle  *hsets;
     98: } SubDM_MOAB;

    100: #endif /* _DMMBIMPL_H */