Actual source code: petscis.h

petsc-master 2015-08-30
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  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 <petscsftypes.h>
  9: #include <petscistypes.h>

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

 14: PETSC_EXTERN PetscErrorCode ISInitializePackage(void);

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

 19:    Level: beginner

 21: .seealso: ISSetType(), IS, ISCreate(), ISRegister()
 22: J*/
 23: typedef const char* ISType;
 24: #define ISGENERAL      "general"
 25: #define ISSTRIDE       "stride"
 26: #define ISBLOCK        "block"

 28: /* Dynamic creation and loading functions */
 29: PETSC_EXTERN PetscFunctionList ISList;
 30: PETSC_EXTERN PetscErrorCode ISSetType(IS, ISType);
 31: PETSC_EXTERN PetscErrorCode ISGetType(IS, ISType *);
 32: PETSC_EXTERN PetscErrorCode ISRegister(const char[],PetscErrorCode (*)(IS));
 33: PETSC_EXTERN PetscErrorCode ISCreate(MPI_Comm,IS*);

 35: /*
 36:     Default index set data structures that PETSc provides.
 37: */
 38: PETSC_EXTERN PetscErrorCode ISCreateGeneral(MPI_Comm,PetscInt,const PetscInt[],PetscCopyMode,IS *);
 39: PETSC_EXTERN PetscErrorCode ISGeneralSetIndices(IS,PetscInt,const PetscInt[],PetscCopyMode);
 40: PETSC_EXTERN PetscErrorCode ISCreateBlock(MPI_Comm,PetscInt,PetscInt,const PetscInt[],PetscCopyMode,IS *);
 41: PETSC_EXTERN PetscErrorCode ISBlockSetIndices(IS,PetscInt,PetscInt,const PetscInt[],PetscCopyMode);
 42: PETSC_EXTERN PetscErrorCode ISCreateStride(MPI_Comm,PetscInt,PetscInt,PetscInt,IS *);
 43: PETSC_EXTERN PetscErrorCode ISStrideSetStride(IS,PetscInt,PetscInt,PetscInt);

 45: PETSC_EXTERN PetscErrorCode ISDestroy(IS*);
 46: PETSC_EXTERN PetscErrorCode ISSetPermutation(IS);
 47: PETSC_EXTERN PetscErrorCode ISPermutation(IS,PetscBool *);
 48: PETSC_EXTERN PetscErrorCode ISSetIdentity(IS);
 49: PETSC_EXTERN PetscErrorCode ISIdentity(IS,PetscBool *);
 50: PETSC_EXTERN PetscErrorCode ISContiguousLocal(IS,PetscInt,PetscInt,PetscInt*,PetscBool*);

 52: PETSC_EXTERN PetscErrorCode ISGetIndices(IS,const PetscInt *[]);
 53: PETSC_EXTERN PetscErrorCode ISRestoreIndices(IS,const PetscInt *[]);
 54: PETSC_EXTERN PetscErrorCode ISGetTotalIndices(IS,const PetscInt *[]);
 55: PETSC_EXTERN PetscErrorCode ISRestoreTotalIndices(IS,const PetscInt *[]);
 56: PETSC_EXTERN PetscErrorCode ISGetNonlocalIndices(IS,const PetscInt *[]);
 57: PETSC_EXTERN PetscErrorCode ISRestoreNonlocalIndices(IS,const PetscInt *[]);
 58: PETSC_EXTERN PetscErrorCode ISGetNonlocalIS(IS, IS *is);
 59: PETSC_EXTERN PetscErrorCode ISRestoreNonlocalIS(IS, IS *is);
 60: PETSC_EXTERN PetscErrorCode ISGetSize(IS,PetscInt *);
 61: PETSC_EXTERN PetscErrorCode ISGetLocalSize(IS,PetscInt *);
 62: PETSC_EXTERN PetscErrorCode ISInvertPermutation(IS,PetscInt,IS*);
 63: PETSC_EXTERN PetscErrorCode ISView(IS,PetscViewer);
 64: PETSC_STATIC_INLINE PetscErrorCode ISViewFromOptions(IS A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
 65: PETSC_EXTERN PetscErrorCode ISLoad(IS,PetscViewer);
 66: PETSC_EXTERN PetscErrorCode ISEqual(IS,IS,PetscBool  *);
 67: PETSC_EXTERN PetscErrorCode ISSort(IS);
 68: PETSC_EXTERN PetscErrorCode ISSortRemoveDups(IS);
 69: PETSC_EXTERN PetscErrorCode ISSorted(IS,PetscBool  *);
 70: PETSC_EXTERN PetscErrorCode ISDifference(IS,IS,IS*);
 71: PETSC_EXTERN PetscErrorCode ISSum(IS,IS,IS*);
 72: PETSC_EXTERN PetscErrorCode ISExpand(IS,IS,IS*);
 73: PETSC_EXTERN PetscErrorCode ISGetMinMax(IS,PetscInt*,PetscInt*);

 75: PETSC_EXTERN PetscErrorCode ISBlockGetIndices(IS,const PetscInt *[]);
 76: PETSC_EXTERN PetscErrorCode ISBlockRestoreIndices(IS,const PetscInt *[]);
 77: PETSC_EXTERN PetscErrorCode ISBlockGetLocalSize(IS,PetscInt *);
 78: PETSC_EXTERN PetscErrorCode ISBlockGetSize(IS,PetscInt *);
 79: PETSC_EXTERN PetscErrorCode ISGetBlockSize(IS,PetscInt*);
 80: PETSC_EXTERN PetscErrorCode ISSetBlockSize(IS,PetscInt);

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

 84: PETSC_EXTERN PetscErrorCode ISToGeneral(IS);

 86: PETSC_EXTERN PetscErrorCode ISDuplicate(IS,IS*);
 87: PETSC_EXTERN PetscErrorCode ISCopy(IS,IS);
 88: PETSC_EXTERN PetscErrorCode ISAllGather(IS,IS*);
 89: PETSC_EXTERN PetscErrorCode ISComplement(IS,PetscInt,PetscInt,IS*);
 90: PETSC_EXTERN PetscErrorCode ISConcatenate(MPI_Comm,PetscInt,const IS[],IS*);
 91: PETSC_EXTERN PetscErrorCode ISListToPair(MPI_Comm,PetscInt, IS[],IS*,IS*);
 92: PETSC_EXTERN PetscErrorCode ISPairToList(IS,IS,PetscInt*, IS *[]);
 93: PETSC_EXTERN PetscErrorCode ISEmbed(IS,IS,PetscBool,IS*);
 94: PETSC_EXTERN PetscErrorCode ISSortPermutation(IS,PetscBool,IS*);
 95: PETSC_EXTERN PetscErrorCode ISOnComm(IS,MPI_Comm,PetscCopyMode,IS*);

 97: /* --------------------------------------------------------------------------*/
 98: PETSC_EXTERN PetscClassId IS_LTOGM_CLASSID;

100: /*E
101:     ISGlobalToLocalMappingType - Indicates if missing global indices are

103:    IS_GTOLM_MASK - missing global indices are replaced with -1
104:    IS_GTOLM_DROP - missing global indices are dropped

106:    Level: beginner

108: .seealso: ISGlobalToLocalMappingApplyBlock()

110: E*/
111: typedef enum {IS_GTOLM_MASK,IS_GTOLM_DROP} ISGlobalToLocalMappingType;

113: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreate(MPI_Comm,PetscInt,PetscInt,const PetscInt[],PetscCopyMode,ISLocalToGlobalMapping*);
114: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateIS(IS,ISLocalToGlobalMapping *);
115: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateSF(PetscSF,PetscInt,ISLocalToGlobalMapping*);
116: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingView(ISLocalToGlobalMapping,PetscViewer);
117: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingDestroy(ISLocalToGlobalMapping*);
118: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
119: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyBlock(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
120: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyIS(ISLocalToGlobalMapping,IS,IS*);
121: PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApply(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
122: PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyBlock(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
123: PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyIS(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,IS,IS*);
124: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetSize(ISLocalToGlobalMapping,PetscInt*);
125: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
126: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
127: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
128: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
129: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetIndices(ISLocalToGlobalMapping,const PetscInt**);
130: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreIndices(ISLocalToGlobalMapping,const PetscInt**);
131: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
132: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
133: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingConcatenate(MPI_Comm,PetscInt,const ISLocalToGlobalMapping[],ISLocalToGlobalMapping*);
134: PETSC_EXTERN PetscErrorCode ISG2LMapApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
135: PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockSize(ISLocalToGlobalMapping,PetscInt*);


138: /* --------------------------------------------------------------------------*/
139: /*E
140:     ISColoringType - determines if the coloring is for the entire parallel grid/graph/matrix
141:                      or for just the local ghosted portion

143:     Level: beginner

145: $   IS_COLORING_GLOBAL - does not include the colors for ghost points, this is used when the function
146: $                        is called synchronously in parallel. This requires generating a "parallel coloring".
147: $   IS_COLORING_GHOSTED - includes colors for ghost points, this is used when the function can be called
148: $                         separately on individual processes with the ghost points already filled in. Does not
149: $                         require a "parallel coloring", rather each process colors its local + ghost part.
150: $                         Using this can result in much less parallel communication. In the paradigm of
151: $                         DMGetLocalVector() and DMGetGlobalVector() this could be called IS_COLORING_LOCAL

153: .seealso: DMCreateColoring()
154: E*/
155: typedef enum {IS_COLORING_GLOBAL,IS_COLORING_GHOSTED} ISColoringType;
156: PETSC_EXTERN const char *const ISColoringTypes[];
157: typedef unsigned PETSC_IS_COLOR_VALUE_TYPE ISColoringValue;
158: PETSC_EXTERN PetscErrorCode ISAllGatherColors(MPI_Comm,PetscInt,ISColoringValue*,PetscInt*,ISColoringValue*[]);

160: PETSC_EXTERN PetscErrorCode ISColoringCreate(MPI_Comm,PetscInt,PetscInt,const ISColoringValue[],PetscCopyMode,ISColoring*);
161: PETSC_EXTERN PetscErrorCode ISColoringDestroy(ISColoring*);
162: PETSC_EXTERN PetscErrorCode ISColoringView(ISColoring,PetscViewer);
163: PETSC_EXTERN PetscErrorCode ISColoringViewFromOptions(ISColoring,PetscObject,const char[]);
164: PETSC_EXTERN PetscErrorCode ISColoringGetIS(ISColoring,PetscInt*,IS*[]);
165: PETSC_EXTERN PetscErrorCode ISColoringRestoreIS(ISColoring,IS*[]);
166: PETSC_EXTERN PetscErrorCode ISColoringReference(ISColoring);
167: PETSC_EXTERN PetscErrorCode ISColoringSetType(ISColoring,ISColoringType);


170: /* --------------------------------------------------------------------------*/

172: PETSC_EXTERN PetscErrorCode ISPartitioningToNumbering(IS,IS*);
173: PETSC_EXTERN PetscErrorCode ISPartitioningCount(IS,PetscInt,PetscInt[]);

175: PETSC_EXTERN PetscErrorCode ISCompressIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
176: PETSC_EXTERN PetscErrorCode ISCompressIndicesSorted(PetscInt,PetscInt,PetscInt,const IS[],IS[]);
177: PETSC_EXTERN PetscErrorCode ISExpandIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);


180: struct _n_PetscLayout{
181:   MPI_Comm               comm;
182:   PetscInt               n,N;         /* local, global vector size */
183:   PetscInt               rstart,rend; /* local start, local end + 1 */
184:   PetscInt               *range;      /* the offset of each processor */
185:   PetscInt               bs;          /* number of elements in each block (generally for multi-component
186:                                        * problems). Defaults to -1 and can be arbitrarily lazy so always use
187:                                        * PetscAbs(map->bs) when accessing directly and expecting result to be
188:                                        * positive. Do NOT multiply above numbers by bs */
189:   PetscInt               refcnt;      /* MPI Vecs obtained with VecDuplicate() and from MatCreateVecs() reuse map of input object */
190:   ISLocalToGlobalMapping mapping;     /* mapping used in Vec/MatSetValuesLocal() */
191: };

195: /*@C
196:      PetscLayoutFindOwner - Find the owning rank for a global index

198:     Not Collective

200:    Input Parameters:
201: +    map - the layout
202: -    idx - global index to find the owner of

204:    Output Parameter:
205: .    owner - the owning rank

207:    Level: developer

209:     Fortran Notes:
210:       Not available from Fortran

212: @*/
213: PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwner(PetscLayout map,PetscInt idx,PetscInt *owner)
214: {
216:   PetscMPIInt    lo = 0,hi,t;

219:   *owner = -1;                  /* GCC erroneously issues warning about possibly uninitialized use when error condition */
220:   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
221:   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
222:   MPI_Comm_size(map->comm,&hi);
223:   while (hi - lo > 1) {
224:     t = lo + (hi - lo) / 2;
225:     if (idx < map->range[t]) hi = t;
226:     else                     lo = t;
227:   }
228:   *owner = lo;
229:   return(0);
230: }

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

237:     Not Collective

239:    Input Parameters:
240: +    map   - the layout
241: -    idx   - global index to find the owner of

243:    Output Parameter:
244: +    owner - the owning rank
245: -    lidx  - local index used by the owner for idx

247:    Level: developer

249:     Fortran Notes:
250:       Not available from Fortran

252: @*/
253: PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwnerIndex(PetscLayout map,PetscInt idx,PetscInt *owner, PetscInt *lidx)
254: {
256:   PetscMPIInt    lo = 0,hi,t;

259:   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
260:   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
261:   MPI_Comm_size(map->comm,&hi);
262:   while (hi - lo > 1) {
263:     t = lo + (hi - lo) / 2;
264:     if (idx < map->range[t]) hi = t;
265:     else                     lo = t;
266:   }
267:   if (owner) *owner = lo;
268:   if (lidx) *lidx  = idx-map->range[lo];
269:   return(0);
270: }

272: PETSC_EXTERN PetscErrorCode PetscLayoutCreate(MPI_Comm,PetscLayout*);
273: PETSC_EXTERN PetscErrorCode PetscLayoutSetUp(PetscLayout);
274: PETSC_EXTERN PetscErrorCode PetscLayoutDestroy(PetscLayout*);
275: PETSC_EXTERN PetscErrorCode PetscLayoutDuplicate(PetscLayout,PetscLayout*);
276: PETSC_EXTERN PetscErrorCode PetscLayoutReference(PetscLayout,PetscLayout*);
277: PETSC_EXTERN PetscErrorCode PetscLayoutSetLocalSize(PetscLayout,PetscInt);
278: PETSC_EXTERN PetscErrorCode PetscLayoutGetLocalSize(PetscLayout,PetscInt *);
279: PETSC_EXTERN PetscErrorCode PetscLayoutSetSize(PetscLayout,PetscInt);
280: PETSC_EXTERN PetscErrorCode PetscLayoutGetSize(PetscLayout,PetscInt *);
281: PETSC_EXTERN PetscErrorCode PetscLayoutSetBlockSize(PetscLayout,PetscInt);
282: PETSC_EXTERN PetscErrorCode PetscLayoutGetBlockSize(PetscLayout,PetscInt*);
283: PETSC_EXTERN PetscErrorCode PetscLayoutGetRange(PetscLayout,PetscInt *,PetscInt *);
284: PETSC_EXTERN PetscErrorCode PetscLayoutGetRanges(PetscLayout,const PetscInt *[]);
285: PETSC_EXTERN PetscErrorCode PetscLayoutSetISLocalToGlobalMapping(PetscLayout,ISLocalToGlobalMapping);
286: PETSC_EXTERN PetscErrorCode PetscSFSetGraphLayout(PetscSF,PetscLayout,PetscInt,const PetscInt*,PetscCopyMode,const PetscInt*);

288: PETSC_EXTERN PetscClassId PETSC_SECTION_CLASSID;

290: PETSC_EXTERN PetscErrorCode PetscSectionCreate(MPI_Comm,PetscSection*);
291: PETSC_EXTERN PetscErrorCode PetscSectionClone(PetscSection, PetscSection*);
292: PETSC_EXTERN PetscErrorCode PetscSectionCopy(PetscSection, PetscSection);
293: PETSC_EXTERN PetscErrorCode PetscSectionGetNumFields(PetscSection, PetscInt *);
294: PETSC_EXTERN PetscErrorCode PetscSectionSetNumFields(PetscSection, PetscInt);
295: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldName(PetscSection, PetscInt, const char *[]);
296: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldName(PetscSection, PetscInt, const char []);
297: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldComponents(PetscSection, PetscInt, PetscInt *);
298: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldComponents(PetscSection, PetscInt, PetscInt);
299: PETSC_EXTERN PetscErrorCode PetscSectionGetChart(PetscSection, PetscInt *, PetscInt *);
300: PETSC_EXTERN PetscErrorCode PetscSectionSetChart(PetscSection, PetscInt, PetscInt);
301: PETSC_EXTERN PetscErrorCode PetscSectionGetPermutation(PetscSection, IS *);
302: PETSC_EXTERN PetscErrorCode PetscSectionSetPermutation(PetscSection, IS);
303: PETSC_EXTERN PetscErrorCode PetscSectionGetDof(PetscSection, PetscInt, PetscInt*);
304: PETSC_EXTERN PetscErrorCode PetscSectionSetDof(PetscSection, PetscInt, PetscInt);
305: PETSC_EXTERN PetscErrorCode PetscSectionAddDof(PetscSection, PetscInt, PetscInt);
306: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt*);
307: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
308: PETSC_EXTERN PetscErrorCode PetscSectionAddFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
309: PETSC_EXTERN PetscErrorCode PetscSectionHasConstraints(PetscSection, PetscBool *);
310: PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintDof(PetscSection, PetscInt, PetscInt*);
311: PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintDof(PetscSection, PetscInt, PetscInt);
312: PETSC_EXTERN PetscErrorCode PetscSectionAddConstraintDof(PetscSection, PetscInt, PetscInt);
313: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt*);
314: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
315: PETSC_EXTERN PetscErrorCode PetscSectionAddFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
316: PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintIndices(PetscSection, PetscInt, const PetscInt**);
317: PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintIndices(PetscSection, PetscInt, const PetscInt*);
318: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt**);
319: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt*);
320: PETSC_EXTERN PetscErrorCode PetscSectionSetUpBC(PetscSection);
321: PETSC_EXTERN PetscErrorCode PetscSectionSetUp(PetscSection);
322: PETSC_EXTERN PetscErrorCode PetscSectionGetMaxDof(PetscSection, PetscInt*);
323: PETSC_EXTERN PetscErrorCode PetscSectionGetStorageSize(PetscSection, PetscInt*);
324: PETSC_EXTERN PetscErrorCode PetscSectionGetConstrainedStorageSize(PetscSection, PetscInt*);
325: PETSC_EXTERN PetscErrorCode PetscSectionGetOffset(PetscSection, PetscInt, PetscInt*);
326: PETSC_EXTERN PetscErrorCode PetscSectionSetOffset(PetscSection, PetscInt, PetscInt);
327: PETSC_EXTERN PetscErrorCode PetscSectionGetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt*);
328: PETSC_EXTERN PetscErrorCode PetscSectionSetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt);
329: PETSC_EXTERN PetscErrorCode PetscSectionGetOffsetRange(PetscSection, PetscInt *, PetscInt *);
330: PETSC_EXTERN PetscErrorCode PetscSectionView(PetscSection, PetscViewer);
331: PETSC_STATIC_INLINE PetscErrorCode PetscSectionViewFromOptions(PetscSection A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
332: PETSC_EXTERN PetscErrorCode PetscSectionReset(PetscSection);
333: PETSC_EXTERN PetscErrorCode PetscSectionDestroy(PetscSection*);
334: PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSection(PetscSection, PetscSF, PetscBool, PetscBool, PetscSection *);
335: PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSectionCensored(PetscSection, PetscSF, PetscBool, PetscInt, const PetscInt [], PetscSection *);
336: PETSC_EXTERN PetscErrorCode PetscSectionCreateSubsection(PetscSection, PetscInt, PetscInt [], PetscSection *);
337: PETSC_EXTERN PetscErrorCode PetscSectionCreateSubmeshSection(PetscSection, IS, PetscSection *);
338: PETSC_EXTERN PetscErrorCode PetscSectionGetPointLayout(MPI_Comm, PetscSection, PetscLayout *);
339: PETSC_EXTERN PetscErrorCode PetscSectionGetValueLayout(MPI_Comm, PetscSection, PetscLayout *);
340: PETSC_EXTERN PetscErrorCode PetscSectionPermute(PetscSection, IS, PetscSection *);
341: PETSC_EXTERN PetscErrorCode PetscSectionGetField(PetscSection, PetscInt, PetscSection *);

343: PETSC_EXTERN PetscErrorCode PetscSectionSetClosureIndex(PetscSection, PetscObject, PetscSection, IS);
344: PETSC_EXTERN PetscErrorCode PetscSectionGetClosureIndex(PetscSection, PetscObject, PetscSection *, IS *);

346: /* PetscSF support */
347: PETSC_EXTERN PetscErrorCode PetscSFConvertPartition(PetscSF, PetscSection, IS, ISLocalToGlobalMapping *, PetscSF *);
348: PETSC_EXTERN PetscErrorCode PetscSFCreateRemoteOffsets(PetscSF, PetscSection, PetscSection, PetscInt **);
349: PETSC_EXTERN PetscErrorCode PetscSFDistributeSection(PetscSF, PetscSection, PetscInt **, PetscSection);
350: PETSC_EXTERN PetscErrorCode PetscSFCreateSectionSF(PetscSF, PetscSection, PetscInt [], PetscSection, PetscSF *);



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

358: #endif