xref: /petsc/include/petscis.h (revision c688d0420b4e513ff34944d1e1ad7d4e50aafa8d)
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 ISGetMinMax(IS,PetscInt*,PetscInt*);
74 
75 PETSC_EXTERN PetscErrorCode ISLocate(IS,PetscInt,PetscInt*);
76 
77 PETSC_EXTERN PetscErrorCode ISBlockGetIndices(IS,const PetscInt *[]);
78 PETSC_EXTERN PetscErrorCode ISBlockRestoreIndices(IS,const PetscInt *[]);
79 PETSC_EXTERN PetscErrorCode ISBlockGetLocalSize(IS,PetscInt *);
80 PETSC_EXTERN PetscErrorCode ISBlockGetSize(IS,PetscInt *);
81 PETSC_EXTERN PetscErrorCode ISGetBlockSize(IS,PetscInt*);
82 PETSC_EXTERN PetscErrorCode ISSetBlockSize(IS,PetscInt);
83 
84 PETSC_EXTERN PetscErrorCode ISStrideGetInfo(IS,PetscInt *,PetscInt*);
85 
86 PETSC_EXTERN PetscErrorCode ISToGeneral(IS);
87 
88 PETSC_EXTERN PetscErrorCode ISDuplicate(IS,IS*);
89 PETSC_EXTERN PetscErrorCode ISCopy(IS,IS);
90 PETSC_EXTERN PetscErrorCode ISAllGather(IS,IS*);
91 PETSC_EXTERN PetscErrorCode ISComplement(IS,PetscInt,PetscInt,IS*);
92 PETSC_EXTERN PetscErrorCode ISConcatenate(MPI_Comm,PetscInt,const IS[],IS*);
93 PETSC_EXTERN PetscErrorCode ISListToPair(MPI_Comm,PetscInt, IS[],IS*,IS*);
94 PETSC_EXTERN PetscErrorCode ISPairToList(IS,IS,PetscInt*, IS *[]);
95 PETSC_EXTERN PetscErrorCode ISEmbed(IS,IS,PetscBool,IS*);
96 PETSC_EXTERN PetscErrorCode ISSortPermutation(IS,PetscBool,IS*);
97 PETSC_EXTERN PetscErrorCode ISOnComm(IS,MPI_Comm,PetscCopyMode,IS*);
98 PETSC_EXTERN PetscErrorCode ISRenumber(IS,IS,PetscInt*,IS*);
99 
100 /* --------------------------------------------------------------------------*/
101 PETSC_EXTERN PetscClassId IS_LTOGM_CLASSID;
102 
103 /*E
104     ISGlobalToLocalMappingType - Indicates if missing global indices are
105 
106    IS_GTOLM_MASK - missing global indices are replaced with -1
107    IS_GTOLM_DROP - missing global indices are dropped
108 
109    Level: beginner
110 
111 .seealso: ISGlobalToLocalMappingApplyBlock()
112 
113 E*/
114 typedef enum {IS_GTOLM_MASK,IS_GTOLM_DROP} ISGlobalToLocalMappingType;
115 
116 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreate(MPI_Comm,PetscInt,PetscInt,const PetscInt[],PetscCopyMode,ISLocalToGlobalMapping*);
117 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateIS(IS,ISLocalToGlobalMapping *);
118 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingCreateSF(PetscSF,PetscInt,ISLocalToGlobalMapping*);
119 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingView(ISLocalToGlobalMapping,PetscViewer);
120 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingDestroy(ISLocalToGlobalMapping*);
121 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApply(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
122 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyBlock(ISLocalToGlobalMapping,PetscInt,const PetscInt[],PetscInt[]);
123 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingApplyIS(ISLocalToGlobalMapping,IS,IS*);
124 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApply(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
125 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyBlock(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,PetscInt,const PetscInt[],PetscInt*,PetscInt[]);
126 PETSC_EXTERN PetscErrorCode ISGlobalToLocalMappingApplyIS(ISLocalToGlobalMapping,ISGlobalToLocalMappingType,IS,IS*);
127 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetSize(ISLocalToGlobalMapping,PetscInt*);
128 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
129 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
130 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
131 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockInfo(ISLocalToGlobalMapping,PetscInt*,PetscInt*[],PetscInt*[],PetscInt**[]);
132 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetIndices(ISLocalToGlobalMapping,const PetscInt**);
133 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreIndices(ISLocalToGlobalMapping,const PetscInt**);
134 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
135 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingRestoreBlockIndices(ISLocalToGlobalMapping,const PetscInt**);
136 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingConcatenate(MPI_Comm,PetscInt,const ISLocalToGlobalMapping[],ISLocalToGlobalMapping*);
137 PETSC_EXTERN PetscErrorCode ISLocalToGlobalMappingGetBlockSize(ISLocalToGlobalMapping,PetscInt*);
138 
139 
140 /* --------------------------------------------------------------------------*/
141 /*E
142     ISColoringType - determines if the coloring is for the entire parallel grid/graph/matrix
143                      or for just the local ghosted portion
144 
145     Level: beginner
146 
147 $   IS_COLORING_GLOBAL - does not include the colors for ghost points, this is used when the function
148 $                        is called synchronously in parallel. This requires generating a "parallel coloring".
149 $   IS_COLORING_LOCAL - includes colors for ghost points, this is used when the function can be called
150 $                         separately on individual processes with the ghost points already filled in. Does not
151 $                         require a "parallel coloring", rather each process colors its local + ghost part.
152 $                         Using this can result in much less parallel communication. Currently only works
153 $                         with DMDA and if you call MatFDColoringSetFunction() with the local function.
154 
155 .seealso: DMCreateColoring()
156 E*/
157 typedef enum {IS_COLORING_GLOBAL,IS_COLORING_LOCAL} ISColoringType;
158 PETSC_EXTERN const char *const ISColoringTypes[];
159 typedef unsigned PETSC_IS_COLOR_VALUE_TYPE ISColoringValue;
160 PETSC_EXTERN PetscErrorCode ISAllGatherColors(MPI_Comm,PetscInt,ISColoringValue*,PetscInt*,ISColoringValue*[]);
161 
162 PETSC_EXTERN PetscErrorCode ISColoringCreate(MPI_Comm,PetscInt,PetscInt,const ISColoringValue[],PetscCopyMode,ISColoring*);
163 PETSC_EXTERN PetscErrorCode ISColoringDestroy(ISColoring*);
164 PETSC_EXTERN PetscErrorCode ISColoringView(ISColoring,PetscViewer);
165 PETSC_EXTERN PetscErrorCode ISColoringViewFromOptions(ISColoring,PetscObject,const char[]);
166 PETSC_EXTERN PetscErrorCode ISColoringGetIS(ISColoring,PetscInt*,IS*[]);
167 PETSC_EXTERN PetscErrorCode ISColoringRestoreIS(ISColoring,IS*[]);
168 PETSC_EXTERN PetscErrorCode ISColoringReference(ISColoring);
169 PETSC_EXTERN PetscErrorCode ISColoringSetType(ISColoring,ISColoringType);
170 
171 
172 /* --------------------------------------------------------------------------*/
173 PETSC_EXTERN PetscErrorCode ISBuildTwoSided(IS,IS,IS*);
174 PETSC_EXTERN PetscErrorCode ISPartitioningToNumbering(IS,IS*);
175 PETSC_EXTERN PetscErrorCode ISPartitioningCount(IS,PetscInt,PetscInt[]);
176 
177 PETSC_EXTERN PetscErrorCode ISCompressIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
178 PETSC_EXTERN PetscErrorCode ISCompressIndicesSorted(PetscInt,PetscInt,PetscInt,const IS[],IS[]);
179 PETSC_EXTERN PetscErrorCode ISExpandIndicesGeneral(PetscInt,PetscInt,PetscInt,PetscInt,const IS[],IS[]);
180 
181 
182 struct _n_PetscLayout{
183   MPI_Comm               comm;
184   PetscInt               n,N;         /* local, global vector size */
185   PetscInt               rstart,rend; /* local start, local end + 1 */
186   PetscInt               *range;      /* the offset of each processor */
187   PetscInt               bs;          /* number of elements in each block (generally for multi-component
188                                        * problems). Defaults to -1 and can be arbitrarily lazy so always use
189                                        * PetscAbs(map->bs) when accessing directly and expecting result to be
190                                        * positive. Do NOT multiply above numbers by bs */
191   PetscInt               refcnt;      /* MPI Vecs obtained with VecDuplicate() and from MatCreateVecs() reuse map of input object */
192   ISLocalToGlobalMapping mapping;     /* mapping used in Vec/MatSetValuesLocal() */
193 };
194 
195 #undef __FUNCT__
196 #define __FUNCT__ "PetscLayoutFindOwner"
197 /*@C
198      PetscLayoutFindOwner - Find the owning rank for a global index
199 
200     Not Collective
201 
202    Input Parameters:
203 +    map - the layout
204 -    idx - global index to find the owner of
205 
206    Output Parameter:
207 .    owner - the owning rank
208 
209    Level: developer
210 
211     Fortran Notes:
212       Not available from Fortran
213 
214 @*/
215 PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwner(PetscLayout map,PetscInt idx,PetscInt *owner)
216 {
217   PetscErrorCode ierr;
218   PetscMPIInt    lo = 0,hi,t;
219 
220   PetscFunctionBegin;
221   *owner = -1;                  /* GCC erroneously issues warning about possibly uninitialized use when error condition */
222   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
223   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
224   ierr = MPI_Comm_size(map->comm,&hi);CHKERRQ(ierr);
225   while (hi - lo > 1) {
226     t = lo + (hi - lo) / 2;
227     if (idx < map->range[t]) hi = t;
228     else                     lo = t;
229   }
230   *owner = lo;
231   PetscFunctionReturn(0);
232 }
233 
234 #undef __FUNCT__
235 #define __FUNCT__ "PetscLayoutFindOwnerIndex"
236 /*@C
237      PetscLayoutFindOwnerIndex - Find the owning rank and the local index for a global index
238 
239     Not Collective
240 
241    Input Parameters:
242 +    map   - the layout
243 -    idx   - global index to find the owner of
244 
245    Output Parameter:
246 +    owner - the owning rank
247 -    lidx  - local index used by the owner for idx
248 
249    Level: developer
250 
251     Fortran Notes:
252       Not available from Fortran
253 
254 @*/
255 PETSC_STATIC_INLINE PetscErrorCode PetscLayoutFindOwnerIndex(PetscLayout map,PetscInt idx,PetscInt *owner, PetscInt *lidx)
256 {
257   PetscErrorCode ierr;
258   PetscMPIInt    lo = 0,hi,t;
259 
260   PetscFunctionBegin;
261   if (!((map->n >= 0) && (map->N >= 0) && (map->range))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscLayoutSetUp() must be called first");
262   if (idx < 0 || idx > map->N) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Index %D is out of range",idx);
263   ierr = MPI_Comm_size(map->comm,&hi);CHKERRQ(ierr);
264   while (hi - lo > 1) {
265     t = lo + (hi - lo) / 2;
266     if (idx < map->range[t]) hi = t;
267     else                     lo = t;
268   }
269   if (owner) *owner = lo;
270   if (lidx) *lidx  = idx-map->range[lo];
271   PetscFunctionReturn(0);
272 }
273 
274 PETSC_EXTERN PetscErrorCode PetscLayoutCreate(MPI_Comm,PetscLayout*);
275 PETSC_EXTERN PetscErrorCode PetscLayoutSetUp(PetscLayout);
276 PETSC_EXTERN PetscErrorCode PetscLayoutDestroy(PetscLayout*);
277 PETSC_EXTERN PetscErrorCode PetscLayoutDuplicate(PetscLayout,PetscLayout*);
278 PETSC_EXTERN PetscErrorCode PetscLayoutReference(PetscLayout,PetscLayout*);
279 PETSC_EXTERN PetscErrorCode PetscLayoutSetLocalSize(PetscLayout,PetscInt);
280 PETSC_EXTERN PetscErrorCode PetscLayoutGetLocalSize(PetscLayout,PetscInt *);
281 PETSC_EXTERN PetscErrorCode PetscLayoutSetSize(PetscLayout,PetscInt);
282 PETSC_EXTERN PetscErrorCode PetscLayoutGetSize(PetscLayout,PetscInt *);
283 PETSC_EXTERN PetscErrorCode PetscLayoutSetBlockSize(PetscLayout,PetscInt);
284 PETSC_EXTERN PetscErrorCode PetscLayoutGetBlockSize(PetscLayout,PetscInt*);
285 PETSC_EXTERN PetscErrorCode PetscLayoutGetRange(PetscLayout,PetscInt *,PetscInt *);
286 PETSC_EXTERN PetscErrorCode PetscLayoutGetRanges(PetscLayout,const PetscInt *[]);
287 PETSC_EXTERN PetscErrorCode PetscLayoutCompare(PetscLayout,PetscLayout,PetscBool*);
288 PETSC_EXTERN PetscErrorCode PetscLayoutSetISLocalToGlobalMapping(PetscLayout,ISLocalToGlobalMapping);
289 PETSC_EXTERN PetscErrorCode PetscSFSetGraphLayout(PetscSF,PetscLayout,PetscInt,const PetscInt*,PetscCopyMode,const PetscInt*);
290 
291 PETSC_EXTERN PetscClassId PETSC_SECTION_CLASSID;
292 
293 PETSC_EXTERN PetscErrorCode PetscSectionCreate(MPI_Comm,PetscSection*);
294 PETSC_EXTERN PetscErrorCode PetscSectionClone(PetscSection, PetscSection*);
295 PETSC_EXTERN PetscErrorCode PetscSectionCopy(PetscSection, PetscSection);
296 PETSC_EXTERN PetscErrorCode PetscSectionGetNumFields(PetscSection, PetscInt *);
297 PETSC_EXTERN PetscErrorCode PetscSectionSetNumFields(PetscSection, PetscInt);
298 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldName(PetscSection, PetscInt, const char *[]);
299 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldName(PetscSection, PetscInt, const char []);
300 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldComponents(PetscSection, PetscInt, PetscInt *);
301 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldComponents(PetscSection, PetscInt, PetscInt);
302 PETSC_EXTERN PetscErrorCode PetscSectionGetChart(PetscSection, PetscInt *, PetscInt *);
303 PETSC_EXTERN PetscErrorCode PetscSectionSetChart(PetscSection, PetscInt, PetscInt);
304 PETSC_EXTERN PetscErrorCode PetscSectionGetPermutation(PetscSection, IS *);
305 PETSC_EXTERN PetscErrorCode PetscSectionSetPermutation(PetscSection, IS);
306 PETSC_EXTERN PetscErrorCode PetscSectionGetDof(PetscSection, PetscInt, PetscInt*);
307 PETSC_EXTERN PetscErrorCode PetscSectionSetDof(PetscSection, PetscInt, PetscInt);
308 PETSC_EXTERN PetscErrorCode PetscSectionAddDof(PetscSection, PetscInt, PetscInt);
309 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt*);
310 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
311 PETSC_EXTERN PetscErrorCode PetscSectionAddFieldDof(PetscSection, PetscInt, PetscInt, PetscInt);
312 PETSC_EXTERN PetscErrorCode PetscSectionHasConstraints(PetscSection, PetscBool *);
313 PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintDof(PetscSection, PetscInt, PetscInt*);
314 PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintDof(PetscSection, PetscInt, PetscInt);
315 PETSC_EXTERN PetscErrorCode PetscSectionAddConstraintDof(PetscSection, PetscInt, PetscInt);
316 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt*);
317 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
318 PETSC_EXTERN PetscErrorCode PetscSectionAddFieldConstraintDof(PetscSection, PetscInt, PetscInt, PetscInt);
319 PETSC_EXTERN PetscErrorCode PetscSectionGetConstraintIndices(PetscSection, PetscInt, const PetscInt**);
320 PETSC_EXTERN PetscErrorCode PetscSectionSetConstraintIndices(PetscSection, PetscInt, const PetscInt*);
321 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt**);
322 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldConstraintIndices(PetscSection, PetscInt, PetscInt, const PetscInt*);
323 PETSC_EXTERN PetscErrorCode PetscSectionSetUpBC(PetscSection);
324 PETSC_EXTERN PetscErrorCode PetscSectionSetUp(PetscSection);
325 PETSC_EXTERN PetscErrorCode PetscSectionGetMaxDof(PetscSection, PetscInt*);
326 PETSC_EXTERN PetscErrorCode PetscSectionGetStorageSize(PetscSection, PetscInt*);
327 PETSC_EXTERN PetscErrorCode PetscSectionGetConstrainedStorageSize(PetscSection, PetscInt*);
328 PETSC_EXTERN PetscErrorCode PetscSectionGetOffset(PetscSection, PetscInt, PetscInt*);
329 PETSC_EXTERN PetscErrorCode PetscSectionSetOffset(PetscSection, PetscInt, PetscInt);
330 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt*);
331 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldOffset(PetscSection, PetscInt, PetscInt, PetscInt);
332 PETSC_EXTERN PetscErrorCode PetscSectionGetOffsetRange(PetscSection, PetscInt *, PetscInt *);
333 PETSC_EXTERN PetscErrorCode PetscSectionView(PetscSection, PetscViewer);
334 PETSC_STATIC_INLINE PetscErrorCode PetscSectionViewFromOptions(PetscSection A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
335 PETSC_EXTERN PetscErrorCode PetscSectionReset(PetscSection);
336 PETSC_EXTERN PetscErrorCode PetscSectionDestroy(PetscSection*);
337 PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSection(PetscSection, PetscSF, PetscBool, PetscBool, PetscSection *);
338 PETSC_EXTERN PetscErrorCode PetscSectionCreateGlobalSectionCensored(PetscSection, PetscSF, PetscBool, PetscInt, const PetscInt [], PetscSection *);
339 PETSC_EXTERN PetscErrorCode PetscSectionCreateSubsection(PetscSection, PetscInt, PetscInt [], PetscSection *);
340 PETSC_EXTERN PetscErrorCode PetscSectionCreateSubmeshSection(PetscSection, IS, PetscSection *);
341 PETSC_EXTERN PetscErrorCode PetscSectionGetPointLayout(MPI_Comm, PetscSection, PetscLayout *);
342 PETSC_EXTERN PetscErrorCode PetscSectionGetValueLayout(MPI_Comm, PetscSection, PetscLayout *);
343 PETSC_EXTERN PetscErrorCode PetscSectionPermute(PetscSection, IS, PetscSection *);
344 PETSC_EXTERN PetscErrorCode PetscSectionGetField(PetscSection, PetscInt, PetscSection *);
345 
346 PETSC_EXTERN PetscErrorCode PetscSectionSetClosureIndex(PetscSection, PetscObject, PetscSection, IS);
347 PETSC_EXTERN PetscErrorCode PetscSectionGetClosureIndex(PetscSection, PetscObject, PetscSection *, IS *);
348 PETSC_EXTERN PetscErrorCode PetscSectionSetClosurePermutation(PetscSection, PetscObject, IS);
349 PETSC_EXTERN PetscErrorCode PetscSectionGetClosurePermutation(PetscSection, PetscObject, IS *);
350 PETSC_EXTERN PetscErrorCode PetscSectionGetClosureInversePermutation(PetscSection, PetscObject, IS *);
351 
352 PETSC_EXTERN PetscClassId PETSC_SECTION_SYM_CLASSID;
353 
354 /*J
355   PetscSectionSymType - String with the name of a PetscSectionSym type.
356 
357   Level: developer
358 
359   Notes: PetscSectionSym has no default implementation, but is used by DM in PetscSectionSymCreateLabel().
360 
361 .seealso: PetscSectionSymSetType(), PetscSectionSym, PetscSectionSymCreate(), PetscSectionSymRegister()
362 J*/
363 typedef const char *PetscSectionSymType;
364 
365 PETSC_EXTERN PetscFunctionList PetscSectionSymList;
366 PETSC_EXTERN PetscErrorCode PetscSectionSymSetType(PetscSectionSym, PetscSectionSymType);
367 PETSC_EXTERN PetscErrorCode PetscSectionSymGetType(PetscSectionSym, PetscSectionSymType*);
368 PETSC_EXTERN PetscErrorCode PetscSectionSymRegister(const char[],PetscErrorCode (*)(PetscSectionSym));
369 
370 PETSC_EXTERN PetscErrorCode PetscSectionSymCreate(MPI_Comm, PetscSectionSym*);
371 PETSC_EXTERN PetscErrorCode PetscSectionSymDestroy(PetscSectionSym*);
372 PETSC_EXTERN PetscErrorCode PetscSectionSymView(PetscSectionSym,PetscViewer);
373 
374 PETSC_EXTERN PetscErrorCode PetscSectionSetSym(PetscSection, PetscSectionSym);
375 PETSC_EXTERN PetscErrorCode PetscSectionGetSym(PetscSection, PetscSectionSym*);
376 PETSC_EXTERN PetscErrorCode PetscSectionSetFieldSym(PetscSection, PetscInt, PetscSectionSym);
377 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldSym(PetscSection, PetscInt, PetscSectionSym*);
378 
379 PETSC_EXTERN PetscErrorCode PetscSectionGetPointSyms(PetscSection, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
380 PETSC_EXTERN PetscErrorCode PetscSectionRestorePointSyms(PetscSection, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
381 PETSC_EXTERN PetscErrorCode PetscSectionGetFieldPointSyms(PetscSection, PetscInt, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
382 PETSC_EXTERN PetscErrorCode PetscSectionRestoreFieldPointSyms(PetscSection, PetscInt, PetscInt, const PetscInt *, const PetscInt ***, const PetscScalar ***);
383 
384 
385 /* PetscSF support */
386 PETSC_EXTERN PetscErrorCode PetscSFConvertPartition(PetscSF, PetscSection, IS, ISLocalToGlobalMapping *, PetscSF *);
387 PETSC_EXTERN PetscErrorCode PetscSFCreateRemoteOffsets(PetscSF, PetscSection, PetscSection, PetscInt **);
388 PETSC_EXTERN PetscErrorCode PetscSFDistributeSection(PetscSF, PetscSection, PetscInt **, PetscSection);
389 PETSC_EXTERN PetscErrorCode PetscSFCreateSectionSF(PetscSF, PetscSection, PetscInt [], PetscSection, PetscSF *);
390 
391 
392 
393 /* Reset __FUNCT__ in case the user does not define it themselves */
394 #undef __FUNCT__
395 #define __FUNCT__ "User provided function"
396 
397 #endif
398