Date: 2016-07-24T17:01:38+00:00

Actual source code: dmmbfield.cxx
petsc-3.7.3 2016-07-24
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      1: #include <petsc/private/dmmbimpl.h> /*I  "petscdmmoab.h"   I*/

      3: #include <petscdmmoab.h>

      7: /*@C
      8:   DMMoabSetFieldVector - Sets the vector reference that represents the solution associated
      9:   with a particular field component.

     11:   Not Collective

     13:   Input Parameters:
     14: + dm     - the discretization manager object
     15: . ifield - the index of the field as set before via DMMoabSetFieldName.
     16: . fvec - the Vector solution corresponding to the field (component)

     18:   Level: intermediate

     20: .keywords: discretization manager, set, component solution

     22: .seealso: DMMoabGetFieldName(), DMMoabSetGlobalFieldVector()
     23: @*/
     24: PetscErrorCode DMMoabSetFieldVector(DM dm, PetscInt ifield, Vec fvec)
     25: {
     26:   DM_Moab        *dmmoab;
     27:   moab::Tag     vtag,ntag;
     28:   const PetscScalar *varray;
     29:   PetscScalar *farray;
     30:   moab::ErrorCode merr;
     31:   PetscErrorCode  ierr;
     32:   std::string tag_name;

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

     38:   if ((ifield < 0) || (ifield >= dmmoab->numFields)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "The field %d should be positive and less than %d.", ifield, dmmoab->numFields);

     40:   /* Create a tag in MOAB mesh to index and keep track of number of Petsc vec tags */
     41:   merr = dmmoab->mbiface->tag_get_handle(dmmoab->fieldNames[ifield],1,moab::MB_TYPE_DOUBLE,ntag,
     42:                                           moab::MB_TAG_DENSE|moab::MB_TAG_CREAT);MBERRNM(merr);

     44:   DMMoabGetVecTag(fvec,&vtag);

     46:   merr = dmmoab->mbiface->tag_get_name(vtag, tag_name);
     47:   if (!tag_name.length() && merr !=moab::MB_SUCCESS) {
     48:     VecGetArrayRead(fvec,&varray);
     49:     /* use the entity handle and the Dof index to set the right value */
     50:     merr = dmmoab->mbiface->tag_set_data(ntag, *dmmoab->vowned, (const void*)varray);MBERRNM(merr);
     51:     VecRestoreArrayRead(fvec,&varray);
     52:   }
     53:   else {
     54:     PetscMalloc1(dmmoab->nloc,&farray);
     55:     /* we are using a MOAB Vec - directly copy the tag data to new one */
     56:     merr = dmmoab->mbiface->tag_get_data(vtag, *dmmoab->vowned, (void*)farray);MBERRNM(merr);
     57:     merr = dmmoab->mbiface->tag_set_data(ntag, *dmmoab->vowned, (const void*)farray);MBERRNM(merr);
     58:     /* make sure the parallel exchange for ghosts are done appropriately */
     59:     PetscFree(farray);
     60:   }
     61:   merr = dmmoab->pcomm->exchange_tags(ntag, *dmmoab->vowned);MBERRNM(merr);
     62:   return(0);
     63: }

     68: /*@C
     69:   DMMoabSetGlobalFieldVector - Sets the vector reference that represents the global solution associated
     70:   with all fields (components) managed by DM.
     71:   A useful utility when updating the DM solution after a solve, to be serialized with the mesh for
     72:   checkpointing purposes.

     74:   Not Collective

     76:   Input Parameters:
     77: + dm     - the discretization manager object
     78: . fvec - the global Vector solution corresponding to all the fields managed by DM

     80:   Level: intermediate

     82: .keywords: discretization manager, set, component solution

     84: .seealso: DMMoabGetFieldName(), DMMoabSetFieldVector()
     85: @*/
     86: PetscErrorCode DMMoabSetGlobalFieldVector(DM dm, Vec fvec)
     87: {
     88:   DM_Moab        *dmmoab;
     89:   moab::Tag     vtag,ntag;
     90:   const PetscScalar   *rarray;
     91:   PetscScalar   *varray,*farray;
     92:   moab::ErrorCode merr;
     93:   PetscErrorCode  ierr;
     94:   PetscInt i,ifield;
     95:   std::string tag_name;
     96:   moab::Range::iterator iter;

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

    102:   /* get the Tag corresponding to the global vector - possible that there is no tag associated.. */
    103:   DMMoabGetVecTag(fvec,&vtag);
    104:   merr = dmmoab->mbiface->tag_get_name(vtag, tag_name);
    105:   PetscMalloc1(dmmoab->nloc,&farray);
    106:   if (!tag_name.length() && merr !=moab::MB_SUCCESS) {
    107:     /* not a MOAB vector - use VecGetSubVector to get the parts as needed */

    109:     VecGetArrayRead(fvec,&rarray);
    110:     for (ifield=0; ifield<dmmoab->numFields; ++ifield) {

    112:       /* Create a tag in MOAB mesh to index and keep track of number of Petsc vec tags */
    113:       merr = dmmoab->mbiface->tag_get_handle(dmmoab->fieldNames[ifield],1,moab::MB_TYPE_DOUBLE,ntag,
    114:                                             moab::MB_TAG_DENSE|moab::MB_TAG_CREAT);MBERRNM(merr);

    116:       for(i=0;i<dmmoab->nloc;i++) {
    117:         if (dmmoab->bs == 1)
    118:           farray[i]=rarray[ifield*dmmoab->nloc+i];
    119:         else
    120:           farray[i]=rarray[i*dmmoab->numFields+ifield];
    121:       }

    123:       /* use the entity handle and the Dof index to set the right value */
    124:       merr = dmmoab->mbiface->tag_set_data(ntag, *dmmoab->vowned, (const void*)farray);MBERRNM(merr);
    125:     }
    126:     VecRestoreArrayRead(fvec,&rarray);
    127:   }
    128:   else {
    129:     PetscMalloc1(dmmoab->nloc*dmmoab->numFields,&varray);

    131:     /* we are using a MOAB Vec - directly copy the tag data to new one */
    132:     merr = dmmoab->mbiface->tag_get_data(vtag, *dmmoab->vowned, (void*)varray);MBERRNM(merr);
    133:     for (ifield=0; ifield<dmmoab->numFields; ++ifield) {

    135:       /* Create a tag in MOAB mesh to index and keep track of number of Petsc vec tags */
    136:       merr = dmmoab->mbiface->tag_get_handle(dmmoab->fieldNames[ifield],1,moab::MB_TYPE_DOUBLE,ntag,
    137:                                             moab::MB_TAG_DENSE|moab::MB_TAG_CREAT);MBERRNM(merr);

    139:       /* we are using a MOAB Vec - directly copy the tag data to new one */
    140:       for(i=0; i < dmmoab->nloc; i++) {
    141:         if (dmmoab->bs == 1)
    142:           farray[i]=varray[ifield*dmmoab->nloc+i];
    143:         else
    144:           farray[i]=varray[i*dmmoab->numFields+ifield];
    145:       }

    147:       merr = dmmoab->mbiface->tag_set_data(ntag, *dmmoab->vowned, (const void*)farray);MBERRNM(merr);
    148:       /* make sure the parallel exchange for ghosts are done appropriately */
    149:       merr = dmmoab->pcomm->exchange_tags(ntag, *dmmoab->vlocal);MBERRNM(merr);
    150:     }
    151:     PetscFree(varray);
    152:   }
    153:   PetscFree(farray);
    154:   return(0);
    155: }

    160: /*@C
    161:   DMMoabSetFieldNames - Sets the number of fields and their names to be managed by the DM

    163:   Not Collective

    165:   Input Parameters:
    166: + dm     - the discretization manager object
    167: . numFields - the total number of fields
    168: . fields - the array containing the names of each field (component); Can be NULL.

    170:   Level: intermediate

    172: .keywords: discretization manager, set, component name
    173:
    174: .seealso: DMMoabGetFieldName(), DMMoabSetFieldName()
    175: @*/
    176: PetscErrorCode DMMoabSetFieldNames(DM dm,PetscInt numFields,const char* fields[])
    177: {
    179:   PetscInt       i;
    180:   DM_Moab        *dmmoab;

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

    186:   /* first deallocate the existing field structure */
    187:   if (dmmoab->fieldNames) {
    188:     for(i=0; i<dmmoab->numFields; i++) {
    189:       PetscFree(dmmoab->fieldNames[i]);
    190:     }
    191:     PetscFree(dmmoab->fieldNames);
    192:   }

    194:   /* now re-allocate and assign field names  */
    195:   dmmoab->numFields = numFields;
    196:   PetscMalloc(numFields*sizeof(char*),&dmmoab->fieldNames);
    197:   if (fields) {
    198:     for(i=0; i<dmmoab->numFields; i++) {
    199:       PetscStrallocpy(fields[i], (char**) &dmmoab->fieldNames[i]);
    200:     }
    201:   }
    202:   return(0);
    203: }

    208: /*@C
    209:   DMMoabGetFieldName - Gets the names of individual field components in multicomponent
    210:   vectors associated with a DMDA.

    212:   Not Collective

    214:   Input Parameter:
    215: + dm     - the discretization manager object
    216: . field - field number for the DMMoab (0, 1, ... dof-1), where dof indicates the
    217:         number of degrees of freedom per node within the DMMoab

    219:   Output Parameter:
    220: . fieldName - the name of the field (component)

    222:   Level: intermediate

    224: .keywords: discretization manager, get, component name

    226: .seealso: DMMoabSetFieldName(), DMMoabSetFields()
    227: @*/
    228: PetscErrorCode DMMoabGetFieldName(DM dm, PetscInt field, const char **fieldName)
    229: {
    230:   DM_Moab        *dmmoab;

    234:   dmmoab = (DM_Moab*)(dm)->data;
    235:   if ((field < 0) || (field >= dmmoab->numFields)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "DM field %d should be in [%d, %d)", field, 0, dmmoab->numFields);

    237:   *fieldName = dmmoab->fieldNames[field];
    238:   return(0);
    239: }

    244: /*@C
    245:   DMMoabSetFieldName - Sets the name of a field (component) managed by the DM

    247:   Not Collective

    249:   Input Parameters:
    250: + dm     - the discretization manager object
    251: . field - the field number
    252: . fieldName - the field (component) name

    254:   Level: intermediate
    255:   Notes: Can only be called after DMMoabSetFields supplied with correct numFields

    257: .keywords: discretization manager, set, component name
    258:
    259: .seealso: DMMoabGetFieldName(), DMMoabSetFields()
    260: @*/
    261: PetscErrorCode DMMoabSetFieldName(DM dm, PetscInt field, const char *fieldName)
    262: {
    264:   DM_Moab        *dmmoab;

    270:   dmmoab = (DM_Moab*)(dm)->data;
    271:   if ((field < 0) || (field >= dmmoab->numFields)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "DM field %d should be in [%d, %d)", field, 0, dmmoab->numFields);

    273:   if (dmmoab->fieldNames[field]) {
    274:     PetscFree(dmmoab->fieldNames[field]);
    275:   }
    276:   PetscStrallocpy(fieldName, (char**) &dmmoab->fieldNames[field]);
    277:   return(0);
    278: }

    283: /*@C
    284:   DMMoabGetFieldDof - Gets the global degree-of-freedom of a field (component) defined on a
    285:   particular MOAB EntityHandle.

    287:   Not Collective

    289:   Input Parameters:
    290: + dm     - the discretization manager object
    291: . point - the MOAB EntityHandle container which holds the field degree-of-freedom values
    292: . field - the field (component) index

    294:   Output Parameter:
    295: + dof - the global degree-of-freedom index corresponding to the field in the discrete representation (Vec, Mat)

    297:   Level: beginner

    299: .keywords: discretization manager, get, global degree of freedom

    301: .seealso: DMMoabGetFieldDofs(), DMMoabGetFieldDofsLocal()
    302: @*/
    303: PetscErrorCode DMMoabGetFieldDof(DM dm,moab::EntityHandle point,PetscInt field,PetscInt* dof)
    304: {
    305:   DM_Moab        *dmmoab;

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

    311:   *dof=dmmoab->gidmap[(PetscInt)point];
    312:   return(0);
    313: }

    318: /*@C
    319:   DMMoabGetFieldDofs - Gets the global degree-of-freedom of a field (component) defined on an
    320:   array of MOAB EntityHandles.

    322:   Not Collective

    324:   Input Parameters:
    325: + dm     - the discretization manager object
    326: . npoints - the total number of Entities in the points array
    327: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values
    328: . field - the field (component) index

    330:   Output Parameter:
    331: + dof - the global degree-of-freedom index array corresponding to the field in the discrete representation (Vec, Mat)

    333:   Level: intermediate

    335: .keywords: discretization manager, get, global degrees of freedom
    336:
    337: .seealso: DMMoabGetFieldDof(), DMMoabGetFieldDofsLocal()
    338: @*/
    339: PetscErrorCode DMMoabGetFieldDofs(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt field,PetscInt* dof)
    340: {
    341:   PetscInt        i;
    342:   PetscErrorCode  ierr;
    343:   DM_Moab        *dmmoab;

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

    350:   if (!dof) {
    351:     PetscMalloc1(npoints,&dof);
    352:   }

    354:   if (dmmoab->bs > 1) { /* compute the DOF based on local blocking in the fields */
    355:     for (i=0; i<npoints; ++i)
    356:       dof[i] = dmmoab->gidmap[(PetscInt)points[i]]*dmmoab->numFields+field;
    357:   }
    358:   else {
    359:     /* assume all fields have equal distribution; i.e., all fields are either defined on vertices or elements and not on a mixture */
    360:     /* TODO: eliminate the limitation using PetscSection to manage DOFs */
    361:     for (i=0; i<npoints; ++i)
    362:       dof[i] = dmmoab->gidmap[(PetscInt)points[i]]+field*dmmoab->n;
    363:   }
    364:   return(0);
    365: }

    370: /*@C
    371:   DMMoabGetFieldDofsLocal - Gets the local degrees-of-freedom of a field (component) defined on an
    372:   array of MOAB EntityHandles.

    374:   Not Collective

    376:   Input Parameters:
    377: + dm     - the discretization manager object
    378: . npoints - the total number of Entities in the points array
    379: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values
    380: . field - the field (component) index

    382:   Output Parameter:
    383: + dof - the local degree-of-freedom index array corresponding to the field in the discrete representation (Vec, Mat)

    385:   Level: intermediate

    387: .keywords: discretization manager, get, local degrees of freedom
    388:
    389: .seealso: DMMoabGetFieldDof(), DMMoabGetFieldDofs()
    390: @*/
    391: PetscErrorCode DMMoabGetFieldDofsLocal(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt field,PetscInt* dof)
    392: {
    393:   PetscInt i,offset;
    394:   PetscErrorCode  ierr;
    395:   DM_Moab        *dmmoab;

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

    402:   if (!dof) {
    403:     PetscMalloc1(npoints,&dof);
    404:   }

    406:   if (dmmoab->bs > 1) { /* compute the DOF based on local blocking in the fields */
    407:     for (i=0; i<npoints; ++i)
    408:       dof[i] = dmmoab->lidmap[(PetscInt)points[i]]*dmmoab->numFields+field;
    409:   }
    410:   else {
    411:     /* assume all fields have equal distribution; i.e., all fields are either defined on vertices or elements and not on a mixture */
    412:     /* TODO: eliminate the limitation using PetscSection to manage DOFs */
    413:     offset = field*dmmoab->n;
    414:     for (i=0; i<npoints; ++i)
    415:       dof[i] = dmmoab->lidmap[(PetscInt)points[i]]+offset;
    416:   }
    417:   return(0);
    418: }

    423: /*@C
    424:   DMMoabGetDofs - Gets the global degree-of-freedom for all fields (components) defined on an
    425:   array of MOAB EntityHandles.

    427:   Not Collective

    429:   Input Parameters:
    430: + dm     - the discretization manager object
    431: . npoints - the total number of Entities in the points array
    432: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values

    434:   Output Parameter:
    435: + dof - the global degree-of-freedom index array corresponding to the field in the discrete representation (Vec, Mat)

    437:   Level: intermediate

    439: .keywords: discretization manager, get, global degrees of freedom
    440:
    441: .seealso: DMMoabGetFieldDofs(), DMMoabGetDofsLocal(), DMMoabGetDofsBlocked()
    442: @*/
    443: PetscErrorCode DMMoabGetDofs(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt* dof)
    444: {
    445:   PetscInt        i,field,offset;
    446:   PetscErrorCode  ierr;
    447:   DM_Moab        *dmmoab;

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

    454:   if (!dof) {
    455:     PetscMalloc1(dmmoab->numFields*npoints,&dof);
    456:   }
    457:
    458:   if (dmmoab->bs > 1) { /* compute the DOF based on local blocking in the fields */
    459:     for (field=0; field<dmmoab->numFields; ++field) {
    460:       for (i=0; i<npoints; ++i)
    461:         dof[i*dmmoab->numFields+field] = dmmoab->gidmap[(PetscInt)points[i]]*dmmoab->numFields+field;
    462:     }
    463:   }
    464:   else {
    465:     /* assume all fields have equal distribution; i.e., all fields are either defined on vertices or elements and not on a mixture */
    466:     /* TODO: eliminate the limitation using PetscSection to manage DOFs */
    467:     for (field=0; field<dmmoab->numFields; ++field) {
    468:       offset = field*dmmoab->n;
    469:       for (i=0; i<npoints; ++i)
    470:         dof[i*dmmoab->numFields+field] = dmmoab->gidmap[(PetscInt)points[i]]+offset;
    471:     }
    472:   }
    473:   return(0);
    474: }

    479: /*@C
    480:   DMMoabGetDofsLocal - Gets the local degree-of-freedom for all fields (components) defined on an
    481:   array of MOAB EntityHandles.

    483:   Not Collective

    485:   Input Parameters:
    486: + dm     - the discretization manager object
    487: . npoints - the total number of Entities in the points array
    488: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values

    490:   Output Parameter:
    491: + dof - the local degree-of-freedom index array corresponding to the field in the discrete representation (Vec, Mat)

    493:   Level: intermediate

    495: .keywords: discretization manager, get, global degrees of freedom
    496:
    497: .seealso: DMMoabGetFieldDofs(), DMMoabGetDofs(), DMMoabGetDofsBlocked()
    498: @*/
    499: PetscErrorCode DMMoabGetDofsLocal(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt* dof)
    500: {
    501:   PetscInt        i,field,offset;
    502:   PetscErrorCode  ierr;
    503:   DM_Moab        *dmmoab;

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

    510:   if (!dof) {
    511:     PetscMalloc1(dmmoab->numFields*npoints,&dof);
    512:   }

    514:   if (dmmoab->bs > 1) { /* compute the DOF based on local blocking in the fields */
    515:     for (field=0; field<dmmoab->numFields; ++field) {
    516:       for (i=0; i<npoints; ++i)
    517:         dof[i*dmmoab->numFields+field] = dmmoab->lidmap[(PetscInt)points[i]]*dmmoab->numFields+field;
    518:     }
    519:   }
    520:   else {
    521:     /* assume all fields have equal distribution; i.e., all fields are either defined on vertices or elements and not on a mixture */
    522:     /* TODO: eliminate the limitation using PetscSection to manage DOFs */
    523:     for (field=0; field<dmmoab->numFields; ++field) {
    524:       offset = field*dmmoab->n;
    525:       for (i=0; i<npoints; ++i)
    526:         dof[i*dmmoab->numFields+field] = dmmoab->lidmap[(PetscInt)points[i]]+offset;
    527:     }
    528:   }
    529:   return(0);
    530: }

    535: /*@C
    536:   DMMoabGetDofsBlocked - Gets the global degree-of-freedom for the first field (component) defined on an
    537:   array of MOAB EntityHandles. It is useful when performing Blocked(Get/Set) methods in computation
    538:   of element residuals and assembly of the discrete systems when all fields are co-located.

    540:   Not Collective

    542:   Input Parameters:
    543: + dm     - the discretization manager object
    544: . npoints - the total number of Entities in the points array
    545: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values

    547:   Output Parameter:
    548: + dof - the blocked global degree-of-freedom index array in the discrete representation (Vec, Mat)

    550:   Level: intermediate

    552: .keywords: discretization manager, get, global degrees of freedom
    553:
    554: .seealso: DMMoabGetDofsLocal(), DMMoabGetDofs(), DMMoabGetDofsBlockedLocal()
    555: @*/
    556: PetscErrorCode DMMoabGetDofsBlocked(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt* dof)
    557: {
    558:   PetscInt        i;
    559:   DM_Moab        *dmmoab;
    560:   PetscErrorCode  ierr;

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

    567:   if (!dof) {
    568:     PetscMalloc1(npoints,&dof);
    569:   }

    571:   for (i=0; i<npoints; ++i) {
    572:     dof[i]=dmmoab->gidmap[(PetscInt)points[i]];
    573:   }
    574:   return(0);
    575: }

    580: /*@C
    581:   DMMoabGetDofsBlockedLocal - Gets the local degree-of-freedom for the first field (component) defined on an
    582:   array of MOAB EntityHandles. It is useful when performing local Blocked(Get/Set) methods in computation
    583:   of element residuals and assembly of the discrete systems when all fields are co-located.

    585:   Not Collective

    587:   Input Parameters:
    588: + dm     - the discretization manager object
    589: . npoints - the total number of Entities in the points array
    590: . points - the MOAB EntityHandle container array which holds the field degree-of-freedom values

    592:   Output Parameter:
    593: + dof - the blocked local degree-of-freedom index array in the discrete representation (Vec, Mat)

    595:   Level: intermediate

    597: .keywords: discretization manager, get, global degrees of freedom
    598:
    599: .seealso: DMMoabGetDofsLocal(), DMMoabGetDofs(), DMMoabGetDofsBlockedLocal()
    600: @*/
    601: PetscErrorCode DMMoabGetDofsBlockedLocal(DM dm,PetscInt npoints,const moab::EntityHandle* points,PetscInt* dof)
    602: {
    603:   PetscInt        i;
    604:   DM_Moab        *dmmoab;
    605:   PetscErrorCode  ierr;

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

    612:   if (!dof) {
    613:     PetscMalloc1(npoints,&dof);
    614:   }

    616:   for (i=0; i<npoints; ++i)
    617:     dof[i] = dmmoab->lidmap[(PetscInt)points[i]];
    618:   return(0);
    619: }

    624: /*@C
    625:   DMMoabGetVertexDofsBlocked - Gets the global degree-of-freedom for the first field (component) defined on an
    626:   array of locally owned MOAB mesh vertices. It's utility is when performing Finite-Difference type calculations
    627:   where vertex traversal is faster than element-wise assembly that is typically done in FEM calculations.

    629:   Not Collective

    631:   Input Parameters:
    632: + dm     - the discretization manager object

    634:   Output Parameter:
    635: + dof - the blocked global degree-of-freedom index array in the discrete representation (Vec, Mat) that is vertex-based based on local numbering

    637:   Level: intermediate

    639: .keywords: discretization manager, get, blocked degrees of freedom
    640:
    641: .seealso: DMMoabGetVertexDofsBlockedLocal(), DMMoabGetDofsBlocked(), DMMoabGetDofsBlockedLocal()
    642: @*/
    643: PetscErrorCode DMMoabGetVertexDofsBlocked(DM dm,PetscInt** dof)
    644: {
    645:   DM_Moab        *dmmoab;

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

    651:   *dof = dmmoab->gidmap;
    652:   return(0);
    653: }

    658: /*@C
    659:   DMMoabGetVertexDofsBlockedLocal - Gets the local degree-of-freedom for the first field (component) defined on an
    660:   array of locally owned MOAB mesh vertices. It's utility is when performing Finite-Difference type calculations
    661:   where vertex traversal is faster than element-wise assembly that is typically done in FEM calculations.

    663:   Not Collective

    665:   Input Parameters:
    666: + dm     - the discretization manager object

    668:   Output Parameter:
    669: + dof - the blocked local degree-of-freedom index array in the discrete representation (Vec, Mat) that is vertex-based based on local numbering

    671:   Level: intermediate

    673: .keywords: discretization manager, get, blocked degrees of freedom
    674:
    675: .seealso: DMMoabGetVertexDofsBlocked(), DMMoabGetDofsBlocked(), DMMoabGetDofsBlockedLocal()
    676: @*/
    677: PetscErrorCode DMMoabGetVertexDofsBlockedLocal(DM dm,PetscInt** dof)
    678: {
    679:   DM_Moab        *dmmoab;

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

    686:   *dof = dmmoab->lidmap;
    687:   return(0);
    688: }