xref: /petsc/include/petscis.h (revision 609bdbee21ea3be08735c64dbe00a9ab27759925)
1 /*
2    An index set is a generalization of a subset of integers.  Index sets
3    are used for defining scatters and gathers.
4 */
5 #if !defined(__PETSCIS_H)
6 #define __PETSCIS_H
7 #include <petscsys.h>
8 #include <petscsftypes.h>
9 #include <petscistypes.h>
10 
11 #define IS_FILE_CLASSID 1211218
12 PETSC_EXTERN PetscClassId IS_CLASSID;
13 
14 PETSC_EXTERN PetscErrorCode ISInitializePackage(void);
15 
16 /*J
17     ISType - String with the name of a PETSc index set type
18 
19    Level: beginner
20 
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"
27 
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*);
34 
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);
44 
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*);
51 
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 ISIntersect(IS,IS,IS*);
74 PETSC_EXTERN PetscErrorCode ISGetMinMax(IS,PetscInt*,PetscInt*);
75 
76 PETSC_EXTERN PetscErrorCode ISLocate(IS,PetscInt,PetscInt*);
77 
78 PETSC_EXTERN PetscErrorCode ISBlockGetIndices(IS,const PetscInt *[]);
79 PETSC_EXTERN PetscErrorCode ISBlockRestoreIndices(IS,const PetscInt *[]);
80 PETSC_EXTERN PetscErrorCode ISBlockGetLocalSize(IS,PetscInt *);
81 PETSC_EXTERN PetscErrorCode ISBlockGetSize(IS,PetscInt *);
82 PETSC_EXTERN PetscErrorCode ISGetBlockSize(IS,PetscInt*);
83 PETSC_EXTERN PetscErrorCode ISSetBlockSize(IS,PetscInt);
84 
85 PETSC_EXTERN PetscErrorCode ISStrideGetInfo(IS,PetscInt *,PetscInt*);
86 
87 PETSC_EXTERN PetscErrorCode ISToGeneral(IS);
88 
89 PETSC_EXTERN PetscErrorCode ISDuplicate(IS,IS*);
90 PETSC_EXTERN PetscErrorCode ISCopy(IS,IS);
91 PETSC_EXTERN PetscErrorCode ISAllGather(IS,IS*);
92 PETSC_EXTERN PetscErrorCode ISComplement(IS,PetscInt,PetscInt,IS*);
93 PETSC_EXTERN PetscErrorCode ISConcatenate(MPI_Comm,PetscInt,const IS[],IS*);
94 PETSC_EXTERN PetscErrorCode ISListToPair(MPI_Comm,PetscInt, IS[],IS*,IS*);
95 PETSC_EXTERN PetscErrorCode ISPairToList(IS,IS,PetscInt*, IS *[]);
96 PETSC_EXTERN PetscErrorCode ISEmbed(IS,IS,PetscBool,IS*);
97 PETSC_EXTERN PetscErrorCode ISSortPermutation(IS,PetscBool,IS*);
98 PETSC_EXTERN PetscErrorCode ISOnComm(IS,MPI_Comm,PetscCopyMode,IS*);
99 PETSC_EXTERN PetscErrorCode ISRenumber(IS,IS,PetscInt*,IS*);
100 
101 /* --------------------------------------------------------------------------*/
102 PETSC_EXTERN PetscClassId IS_LTOGM_CLASSID;
103 
104 /*E
105     ISGlobalToLocalMappingMode - Indicates if missing global indices are
106 
107    IS_GTOLM_MASK - missing global indices are replaced with -1
108    IS_GTOLM_DROP - missing global indices are dropped
109 
110    Level: beginner
111 
112 .seealso: ISGlobalToLocalMappingApplyBlock(), ISGlobalToLocalMappingApply()
113 
114 E*/
115 typedef enum {IS_GTOLM_MASK,IS_GTOLM_DROP} ISGlobalToLocalMappingMode;
116 
117 /*J
118     ISLocalToGlobalMappingType - String with the name of a mapping method
119 
120    Level: beginner
121 
122 .seealso: ISLocalToGlobalMappingSetType(), ISLocalToGlobalSetFromOptions()
123 J*/
124 typedef const char* ISLocalToGlobalMappingType;
125 #define ISLOCALTOGLOBALMAPPINGBASIC "basic"
126 #define ISLOCALTOGLOBALMAPPINGHASH  "hash"
127 
128 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingSetType(ISLocalToGlobalMapping,ISLocalToGlobalMappingType);
129 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRegisterAll(void);
130 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreate(MPI_Comm,PetscInt,PetscInt,const PetscInt[],PetscCopyMode,ISLocalToGlobalMapping*);
131 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateIS(IS,ISLocalToGlobalMapping *);
132 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateSF(PetscSF,PetscInt,ISLocalToGlobalMapping*);
133 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingSetFromOptions(ISLocalToGlobalMapping);
134 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingSetUp(ISLocalToGlobalMapping);
135 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingView(ISLocalToGlobalMapping,PetscViewer);
136 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingDestroy(ISLocalToGlobalMapping*);
137 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
138 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyBlock(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
139 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyIS(ISLocalToGlobalMapping,IS,IS*);
140 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApply(ISLocalToGlobalMapping,ISGlobalToLocalMappingMode,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
141 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyBlock(ISLocalToGlobalMapping,ISGlobalToLocalMappingMode,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
142 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyIS(ISLocalToGlobalMapping,ISGlobalToLocalMappingMode,IS,IS*);
143 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetSize(ISLocalToGlobalMapping,PetscInt*);
144 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
145 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
146 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
147 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
148 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetIndices(ISLocalToGlobalMapping,const PetscInt**);
149 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreIndices(ISLocalToGlobalMapping,const PetscInt**);
150 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
151 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
152 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingConcatenate(MPI_Comm,PetscInt,const ISLocalToGlobalMapping[],ISLocalToGlobalMapping*);
153 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockSize(ISLocalToGlobalMapping,PetscInt*);
154 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingSetBlockSize(ISLocalToGlobalMapping,PetscInt);
155 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingDuplicate(ISLocalToGlobalMapping,ISLocalToGlobalMapping*);
156 
157 
158 /* --------------------------------------------------------------------------*/
159 /*E
160     ISColoringType - determines if the coloring is for the entire parallel grid/graph/matrix
161                      or for just the local ghosted portion
162 
163     Level: beginner
164 
165 $   IS_COLORING_GLOBAL - does not include the colors for ghost points, this is used when the function
166 $                        is called synchronously in parallel. This requires generating a "parallel coloring".
167 $   IS_COLORING_LOCAL - includes colors for ghost points, this is used when the function can be called
168 $                         separately on individual processes with the ghost points already filled in. Does not
169 $                         require a "parallel coloring", rather each process colors its local + ghost part.
170 $                         Using this can result in much less parallel communication. Currently only works
171 $                         with DMDA and if you call MatFDColoringSetFunction() with the local function.
172 
173 .seealso: DMCreateColoring()
174 E*/
175 typedef enum {IS_COLORING_GLOBAL,IS_COLORING_LOCAL} ISColoringType;
176 PETSC_EXTERN const char *const ISColoringTypes[];
177 typedef unsigned PETSC_IS_COLOR_VALUE_TYPE ISColoringValue;
178 PETSC_EXTERN PetscErrorCode ISAllGatherColors(MPI_Comm,PetscInt,ISColoringValue*,PetscInt*,ISColoringValue*[]);
179 
180 PETSC_EXTERN PetscErrorCode ISColoringCreate(MPI_Comm,PetscInt,PetscInt,const ISColoringValue[],PetscCopyMode,ISColoring*);
181 PETSC_EXTERN PetscErrorCode ISColoringDestroy(ISColoring*);
182 PETSC_EXTERN PetscErrorCode ISColoringView(ISColoring,PetscViewer);
183 PETSC_EXTERN PetscErrorCode ISColoringViewFromOptions(ISColoring,PetscObject,const char[]);
184 PETSC_EXTERN PetscErrorCode ISColoringGetIS(ISColoring,PetscInt*,IS*[]);
185 PETSC_EXTERN PetscErrorCode ISColoringRestoreIS(ISColoring,IS*[]);
186 PETSC_EXTERN PetscErrorCode ISColoringReference(ISColoring);
187 PETSC_EXTERN PetscErrorCode ISColoringSetType(ISColoring,ISColoringType);
188 
189 
190 /* --------------------------------------------------------------------------*/
191 PETSC_EXTERN PetscErrorCode ISBuildTwoSided(IS,IS,IS*);
192 PETSC_EXTERN PetscErrorCode ISPartitioningToNumbering(IS,IS*);
193 PETSC_EXTERN PetscErrorCode ISPartitioningCount(IS,PetscInt,PetscInt[]);
194 
195 PETSC_EXTERN PetscErrorCode ISCompressIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
196 PETSC_EXTERN PetscErrorCode ISCompressIndicesSorted(PetscInt,PetscInt,PetscInt,const IS[],IS[]);
197 PETSC_EXTERN PetscErrorCode ISExpandIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
198 
199 
200 struct _n_PetscLayout{
201   MPI_Comm               comm;
202   PetscInt               n,N;         /* local, global vector size */
203   PetscInt               rstart,rend; /* local start, local end + 1 */
204   PetscInt               *range;      /* the offset of each processor */
205   PetscInt               bs;          /* number of elements in each block (generally for multi-component
206                                        * problems). Defaults to -1 and can be arbitrarily lazy so always use
207                                        * PetscAbs(map->bs) when accessing directly and expecting result to be
208                                        * positive. Do NOT multiply above numbers by bs */
209   PetscInt               refcnt;      /* MPI Vecs obtained with VecDuplicate() and from MatCreateVecs() reuse map of input object */
210   ISLocalToGlobalMapping mapping;     /* mapping used in Vec/MatSetValuesLocal() */
211 };
212 
213 /*@C
214      PetscLayoutFindOwner - Find the owning rank for a global index
215 
216     Not Collective
217 
218    Input Parameters:
219 +    map - the layout
220 -    idx - global index to find the owner of
221 
222    Output Parameter:
223 .    owner - the owning rank
224 
225    Level: developer
226 
227     Fortran Notes:
228       Not available from Fortran
229 
230 @*/
231 PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwner(PetscLayout map,PetscInt idx,PetscInt *owner)
232 {
233   PetscErrorCode ierr;
234   PetscMPIInt    lo = 0,hi,t;
235 
236   PetscFunctionBegin;
237   *owner = -1;                  /* GCC erroneously issues warning about possibly uninitialized use when error condition */
238   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
239   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
240   ierr = MPI_Comm_size(map->comm,&hi);CHKERRQ(ierr);
241   while (hi - lo > 1) {
242     t = lo + (hi - lo) / 2;
243     if (idx < map->range[t]) hi = t;
244     else                     lo = t;
245   }
246   *owner = lo;
247   PetscFunctionReturn(0);
248 }
249 
250 /*@C
251      PetscLayoutFindOwnerIndex - Find the owning rank and the local index for a global index
252 
253     Not Collective
254 
255    Input Parameters:
256 +    map   - the layout
257 -    idx   - global index to find the owner of
258 
259    Output Parameter:
260 +    owner - the owning rank
261 -    lidx  - local index used by the owner for idx
262 
263    Level: developer
264 
265     Fortran Notes:
266       Not available from Fortran
267 
268 @*/
269 PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwnerIndex(PetscLayout map,PetscInt idx,PetscInt *owner, PetscInt *lidx)
270 {
271   PetscErrorCode ierr;
272   PetscMPIInt    lo = 0,hi,t;
273 
274   PetscFunctionBegin;
275   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
276   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
277   ierr = MPI_Comm_size(map->comm,&hi);CHKERRQ(ierr);
278   while (hi - lo > 1) {
279     t = lo + (hi - lo) / 2;
280     if (idx < map->range[t]) hi = t;
281     else                     lo = t;
282   }
283   if (owner) *owner = lo;
284   if (lidx) *lidx  = idx-map->range[lo];
285   PetscFunctionReturn(0);
286 }
287 
288 PETSC_EXTERN PetscErrorCode PetscLayoutCreate(MPI_Comm,PetscLayout*);
289 PETSC_EXTERN PetscErrorCode PetscLayoutSetUp(PetscLayout);
290 PETSC_EXTERN PetscErrorCode PetscLayoutDestroy(PetscLayout*);
291 PETSC_EXTERN PetscErrorCode PetscLayoutDuplicate(PetscLayout,PetscLayout*);
292 PETSC_EXTERN PetscErrorCode PetscLayoutReference(PetscLayout,PetscLayout*);
293 PETSC_EXTERN PetscErrorCode PetscLayoutSetLocalSize(PetscLayout,PetscInt);
294 PETSC_EXTERN PetscErrorCode PetscLayoutGetLocalSize(PetscLayout,PetscInt *);
295 PETSC_EXTERN PetscErrorCode PetscLayoutSetSize(PetscLayout,PetscInt);
296 PETSC_EXTERN PetscErrorCode PetscLayoutGetSize(PetscLayout,PetscInt *);
297 PETSC_EXTERN PetscErrorCode PetscLayoutSetBlockSize(PetscLayout,PetscInt);
298 PETSC_EXTERN PetscErrorCode PetscLayoutGetBlockSize(PetscLayout,PetscInt*);
299 PETSC_EXTERN PetscErrorCode PetscLayoutGetRange(PetscLayout,PetscInt *,PetscInt *);
300 PETSC_EXTERN PetscErrorCode PetscLayoutGetRanges(PetscLayout,const PetscInt *[]);
301 PETSC_EXTERN PetscErrorCode PetscLayoutCompare(PetscLayout,PetscLayout,PetscBool*);
302 PETSC_EXTERN PetscErrorCode PetscLayoutSetISLocalToGlobalMapping(PetscLayout,ISLocalToGlobalMapping);
303 PETSC_EXTERN PetscErrorCode PetscSFSetGraphLayout(PetscSF,PetscLayout,PetscInt,const PetscInt*,PetscCopyMode,const PetscInt*);
304 
305 PETSC_EXTERN PetscClassId PETSC_SECTION_CLASSID;
306 
307 PETSC_EXTERN PetscErrorCode PetscSectionCreate(MPI_Comm,PetscSection*);
308 PETSC_EXTERN PetscErrorCode PetscSectionClone(PetscSection, PetscSection*);
309 PETSC_EXTERN PetscErrorCode PetscSectionCopy(PetscSection, PetscSection);
310 PETSC_EXTERN PetscErrorCode PetscSectionGetNumFields(PetscSection, PetscInt *);
311 PETSC_EXTERN PetscErrorCode PetscSectionSetNumFields(PetscSection, PetscInt);
312 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldName(PetscSection, PetscInt, const char *[]);
313 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldName(PetscSection, PetscInt, const char []);
314 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldComponents(PetscSection, PetscInt, PetscInt *);
315 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldComponents(PetscSection, PetscInt, PetscInt);
316 PETSC_EXTERN PetscErrorCode PetscSectionGetChart(PetscSection, PetscInt *, PetscInt *);
317 PETSC_EXTERN PetscErrorCode PetscSectionSetChart(PetscSection, PetscInt, PetscInt);
318 PETSC_EXTERN PetscErrorCode PetscSectionGetPermutation(PetscSection, IS *);
319 PETSC_EXTERN PetscErrorCode PetscSectionSetPermutation(PetscSection, IS);
320 PETSC_EXTERN PetscErrorCode PetscSectionGetDof(PetscSection, PetscInt, PetscInt*);
321 PETSC_EXTERN PetscErrorCode PetscSectionSetDof(PetscSection, PetscInt, PetscInt);
322 PETSC_EXTERN PetscErrorCode PetscSectionAddDof(PetscSection, PetscInt, PetscInt);
323 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt*);
324 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
325 PETSC_EXTERN PetscErrorCode PetscSectionAddFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
326 PETSC_EXTERN PetscErrorCode PetscSectionHasConstraints(PetscSection, PetscBool *);
327 PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintDof(PetscSection, PetscInt, PetscInt*);
328 PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintDof(PetscSection, PetscInt, PetscInt);
329 PETSC_EXTERN PetscErrorCode PetscSectionAddConstraintDof(PetscSection, PetscInt, PetscInt);
330 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt*);
331 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
332 PETSC_EXTERN PetscErrorCode PetscSectionAddFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
333 PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintIndices(PetscSection, PetscInt, const PetscInt**);
334 PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintIndices(PetscSection, PetscInt, const PetscInt*);
335 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt**);
336 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt*);
337 PETSC_EXTERN PetscErrorCode PetscSectionSetUpBC(PetscSection);
338 PETSC_EXTERN PetscErrorCode PetscSectionSetUp(PetscSection);
339 PETSC_EXTERN PetscErrorCode PetscSectionGetMaxDof(PetscSection, PetscInt*);
340 PETSC_EXTERN PetscErrorCode PetscSectionGetStorageSize(PetscSection, PetscInt*);
341 PETSC_EXTERN PetscErrorCode PetscSectionGetConstrainedStorageSize(PetscSection, PetscInt*);
342 PETSC_EXTERN PetscErrorCode PetscSectionGetOffset(PetscSection, PetscInt, PetscInt*);
343 PETSC_EXTERN PetscErrorCode PetscSectionSetOffset(PetscSection, PetscInt, PetscInt);
344 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt*);
345 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt);
346 PETSC_EXTERN PetscErrorCode PetscSectionGetOffsetRange(PetscSection, PetscInt *, PetscInt *);
347 PETSC_EXTERN PetscErrorCode PetscSectionView(PetscSection, PetscViewer);
348 PETSC_STATIC_INLINE PetscErrorCode PetscSectionViewFromOptions(PetscSection A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
349 PETSC_EXTERN PetscErrorCode PetscSectionReset(PetscSection);
350 PETSC_EXTERN PetscErrorCode PetscSectionDestroy(PetscSection*);
351 PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSection(PetscSection, PetscSF, PetscBool, PetscBool, PetscSection *);
352 PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSectionCensored(PetscSection, PetscSF, PetscBool, PetscInt, const PetscInt [], PetscSection *);
353 PETSC_EXTERN PetscErrorCode PetscSectionCreateSubsection(PetscSection, PetscInt, PetscInt [], PetscSection *);
354 PETSC_EXTERN PetscErrorCode PetscSectionCreateSubmeshSection(PetscSection, IS, PetscSection *);
355 PETSC_EXTERN PetscErrorCode PetscSectionGetPointLayout(MPI_Comm, PetscSection, PetscLayout *);
356 PETSC_EXTERN PetscErrorCode PetscSectionGetValueLayout(MPI_Comm, PetscSection, PetscLayout *);
357 PETSC_EXTERN PetscErrorCode PetscSectionPermute(PetscSection, IS, PetscSection *);
358 PETSC_EXTERN PetscErrorCode PetscSectionGetField(PetscSection, PetscInt, PetscSection *);
359 
360 PETSC_EXTERN PetscErrorCode PetscSectionSetClosureIndex(PetscSection, PetscObject, PetscSection, IS);
361 PETSC_EXTERN PetscErrorCode PetscSectionGetClosureIndex(PetscSection, PetscObject, PetscSection *, IS *);
362 PETSC_EXTERN PetscErrorCode PetscSectionSetClosurePermutation(PetscSection, PetscObject, IS);
363 PETSC_EXTERN PetscErrorCode PetscSectionGetClosurePermutation(PetscSection, PetscObject, IS *);
364 PETSC_EXTERN PetscErrorCode PetscSectionGetClosureInversePermutation(PetscSection, PetscObject, IS *);
365 
366 PETSC_EXTERN PetscClassId PETSC_SECTION_SYM_CLASSID;
367 
368 /*J
369   PetscSectionSymType - String with the name of a PetscSectionSym type.
370 
371   Level: developer
372 
373   Notes: PetscSectionSym has no default implementation, but is used by DM in PetscSectionSymCreateLabel().
374 
375 .seealso: PetscSectionSymSetType(), PetscSectionSym, PetscSectionSymCreate(), PetscSectionSymRegister()
376 J*/
377 typedef const char *PetscSectionSymType;
378 
379 PETSC_EXTERN PetscFunctionList PetscSectionSymList;
380 PETSC_EXTERN PetscErrorCode PetscSectionSymSetType(PetscSectionSym, PetscSectionSymType);
381 PETSC_EXTERN PetscErrorCode PetscSectionSymGetType(PetscSectionSym, PetscSectionSymType*);
382 PETSC_EXTERN PetscErrorCode PetscSectionSymRegister(const char[],PetscErrorCode (*)(PetscSectionSym));
383 
384 PETSC_EXTERN PetscErrorCode PetscSectionSymCreate(MPI_Comm, PetscSectionSym*);
385 PETSC_EXTERN PetscErrorCode PetscSectionSymDestroy(PetscSectionSym*);
386 PETSC_EXTERN PetscErrorCode PetscSectionSymView(PetscSectionSym,PetscViewer);
387 
388 PETSC_EXTERN PetscErrorCode PetscSectionSetSym(PetscSection, PetscSectionSym);
389 PETSC_EXTERN PetscErrorCode PetscSectionGetSym(PetscSection, PetscSectionSym*);
390 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldSym(PetscSection, PetscInt, PetscSectionSym);
391 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldSym(PetscSection, PetscInt, PetscSectionSym*);
392 
393 PETSC_EXTERN PetscErrorCode PetscSectionGetPointSyms(PetscSection, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
394 PETSC_EXTERN PetscErrorCode PetscSectionRestorePointSyms(PetscSection, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
395 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldPointSyms(PetscSection, PetscInt, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
396 PETSC_EXTERN PetscErrorCode PetscSectionRestoreFieldPointSyms(PetscSection, PetscInt, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
397 
398 
399 /* PetscSF support */
400 PETSC_EXTERN PetscErrorCode PetscSFConvertPartition(PetscSF, PetscSection, IS, ISLocalToGlobalMapping *, PetscSF *);
401 PETSC_EXTERN PetscErrorCode PetscSFCreateRemoteOffsets(PetscSF, PetscSection, PetscSection, PetscInt **);
402 PETSC_EXTERN PetscErrorCode PetscSFDistributeSection(PetscSF, PetscSection, PetscInt **, PetscSection);
403 PETSC_EXTERN PetscErrorCode PetscSFCreateSectionSF(PetscSF, PetscSection, PetscInt [], PetscSection, PetscSF *);
404 
405 #endif
406