xref: /petsc/include/petscvec.h (revision 8dc1d2a3a0b0219f67591c34b0f761797c23be35)
1 /*
2     Defines the vector component of PETSc. Vectors generally represent
3   degrees of freedom for finite element/finite difference functions
4   on a grid. They have more mathematical structure then simple arrays.
5 */
6 
7 #ifndef __PETSCVEC_H
8 #define __PETSCVEC_H
9 #include "petscis.h"
10 
11 
12 /*S
13      Vec - Abstract PETSc vector object
14 
15    Level: beginner
16 
17   Concepts: field variables, unknowns, arrays
18 
19 .seealso:  VecCreate(), VecType, VecSetType()
20 S*/
21 typedef struct _p_Vec*         Vec;
22 
23 /*S
24      VecScatter - Object used to manage communication of data
25        between vectors in parallel. Manages both scatters and gathers
26 
27    Level: beginner
28 
29   Concepts: scatter
30 
31 .seealso:  VecScatterCreate(), VecScatterBegin(), VecScatterEnd()
32 S*/
33 typedef struct _p_VecScatter*  VecScatter;
34 
35 /*E
36   ScatterMode - Determines the direction of a scatter
37 
38   Level: beginner
39 
40 .seealso: VecScatter, VecScatterBegin(), VecScatterEnd()
41 E*/
42 typedef enum {SCATTER_FORWARD=0, SCATTER_REVERSE=1, SCATTER_FORWARD_LOCAL=2, SCATTER_REVERSE_LOCAL=3, SCATTER_LOCAL=2} ScatterMode;
43 
44 /*MC
45     SCATTER_FORWARD - Scatters the values as dictated by the VecScatterCreate() call
46 
47     Level: beginner
48 
49 .seealso: VecScatter, ScatterMode, VecScatterCreate(), VecScatterBegin(), VecScatterEnd(), SCATTER_REVERSE, SCATTER_FORWARD_LOCAL,
50           SCATTER_REVERSE_LOCAL
51 
52 M*/
53 
54 /*MC
55     SCATTER_REVERSE - Moves the values in the opposite direction then the directions indicated in
56          in the VecScatterCreate()
57 
58     Level: beginner
59 
60 .seealso: VecScatter, ScatterMode, VecScatterCreate(), VecScatterBegin(), VecScatterEnd(), SCATTER_FORWARD, SCATTER_FORWARD_LOCAL,
61           SCATTER_REVERSE_LOCAL
62 
63 M*/
64 
65 /*MC
66     SCATTER_FORWARD_LOCAL - Scatters the values as dictated by the VecScatterCreate() call except NO parallel communication
67        is done. Any variables that have be moved between processes are ignored
68 
69     Level: developer
70 
71 .seealso: VecScatter, ScatterMode, VecScatterCreate(), VecScatterBegin(), VecScatterEnd(), SCATTER_REVERSE, SCATTER_FORWARD,
72           SCATTER_REVERSE_LOCAL
73 
74 M*/
75 
76 /*MC
77     SCATTER_REVERSE_LOCAL - Moves the values in the opposite direction then the directions indicated in
78          in the VecScatterCreate()  except NO parallel communication
79        is done. Any variables that have be moved between processes are ignored
80 
81     Level: developer
82 
83 .seealso: VecScatter, ScatterMode, VecScatterCreate(), VecScatterBegin(), VecScatterEnd(), SCATTER_FORWARD, SCATTER_FORWARD_LOCAL,
84           SCATTER_REVERSE
85 
86 M*/
87 
88 /*J
89     VecType - String with the name of a PETSc vector or the creation function
90        with an optional dynamic library name, for example
91        http://www.mcs.anl.gov/petsc/lib.a:myveccreate()
92 
93    Level: beginner
94 
95 .seealso: VecSetType(), Vec
96 J*/
97 #define VecType char*
98 #define VECSEQ         "seq"
99 #define VECMPI         "mpi"
100 #define VECSTANDARD    "standard"   /* seq on one process and mpi on several */
101 #define VECSHARED      "shared"
102 #define VECSIEVE       "sieve"
103 #define VECSEQCUSP     "seqcusp"
104 #define VECMPICUSP     "mpicusp"
105 #define VECCUSP        "cusp"       /* seqcusp on one process and mpicusp on several */
106 #define VECNEST        "nest"
107 #define VECSEQPTHREAD  "seqpthread"
108 #define VECMPIPTHREAD  "mpipthread"
109 #define VECPTHREAD     "pthread"    /* seqpthread on one process and mpipthread on several */
110 
111 
112 /* Logging support */
113 #define    VEC_FILE_CLASSID 1211214
114 PETSC_EXTERN PetscClassId VEC_CLASSID;
115 PETSC_EXTERN PetscClassId VEC_SCATTER_CLASSID;
116 
117 
118 PETSC_EXTERN PetscErrorCode VecInitializePackage(const char[]);
119 PETSC_EXTERN PetscErrorCode VecFinalizePackage(void);
120 
121 PETSC_EXTERN PetscErrorCode VecCreate(MPI_Comm,Vec*);
122 PETSC_EXTERN PetscErrorCode VecCreateSeq(MPI_Comm,PetscInt,Vec*);
123 PETSC_EXTERN PetscErrorCode VecCreateMPI(MPI_Comm,PetscInt,PetscInt,Vec*);
124 PETSC_EXTERN PetscErrorCode VecCreateSeqWithArray(MPI_Comm,PetscInt,PetscInt,const PetscScalar[],Vec*);
125 PETSC_EXTERN PetscErrorCode VecCreateMPIWithArray(MPI_Comm,PetscInt,PetscInt,PetscInt,const PetscScalar[],Vec*);
126 PETSC_EXTERN PetscErrorCode VecCreateShared(MPI_Comm,PetscInt,PetscInt,Vec*);
127 PETSC_EXTERN PetscErrorCode VecSetFromOptions(Vec);
128 PETSC_EXTERN PetscErrorCode VecSetUp(Vec);
129 PETSC_EXTERN PetscErrorCode VecDestroy(Vec*);
130 PETSC_EXTERN PetscErrorCode VecZeroEntries(Vec);
131 PETSC_EXTERN PetscErrorCode VecSetOptionsPrefix(Vec,const char[]);
132 PETSC_EXTERN PetscErrorCode VecAppendOptionsPrefix(Vec,const char[]);
133 PETSC_EXTERN PetscErrorCode VecGetOptionsPrefix(Vec,const char*[]);
134 
135 PETSC_EXTERN PetscErrorCode VecSetSizes(Vec,PetscInt,PetscInt);
136 
137 PETSC_EXTERN PetscErrorCode VecDotNorm2(Vec,Vec,PetscScalar*,PetscScalar*);
138 PETSC_EXTERN PetscErrorCode VecDot(Vec,Vec,PetscScalar*);
139 PETSC_EXTERN PetscErrorCode VecTDot(Vec,Vec,PetscScalar*);
140 PETSC_EXTERN PetscErrorCode VecMDot(Vec,PetscInt,const Vec[],PetscScalar[]);
141 PETSC_EXTERN PetscErrorCode VecMTDot(Vec,PetscInt,const Vec[],PetscScalar[]);
142 PETSC_EXTERN PetscErrorCode VecGetSubVector(Vec,IS,Vec*);
143 PETSC_EXTERN PetscErrorCode VecRestoreSubVector(Vec,IS,Vec*);
144 
145 /*E
146     NormType - determines what type of norm to compute
147 
148     Level: beginner
149 
150 .seealso: VecNorm(), VecNormBegin(), VecNormEnd(), MatNorm()
151 E*/
152 typedef enum {NORM_1=0,NORM_2=1,NORM_FROBENIUS=2,NORM_INFINITY=3,NORM_1_AND_2=4} NormType;
153 PETSC_EXTERN const char *NormTypes[];
154 #define NORM_MAX NORM_INFINITY
155 
156 /*MC
157      NORM_1 - the one norm, ||v|| = sum_i | v_i |. ||A|| = max_j || v_*j ||, maximum column sum
158 
159    Level: beginner
160 
161 .seealso:  NormType, MatNorm(), VecNorm(), VecNormBegin(), VecNormEnd(), NORM_2, NORM_FROBENIUS,
162            NORM_INFINITY, NORM_1_AND_2
163 
164 M*/
165 
166 /*MC
167      NORM_2 - the two norm, ||v|| = sqrt(sum_i (v_i)^2) (vectors only)
168 
169    Level: beginner
170 
171 .seealso:  NormType, MatNorm(), VecNorm(), VecNormBegin(), VecNormEnd(), NORM_1, NORM_FROBENIUS,
172            NORM_INFINITY, NORM_1_AND_2
173 
174 M*/
175 
176 /*MC
177      NORM_FROBENIUS - ||A|| = sqrt(sum_ij (A_ij)^2), same as NORM_2 for vectors
178 
179    Level: beginner
180 
181 .seealso:  NormType, MatNorm(), VecNorm(), VecNormBegin(), VecNormEnd(), NORM_1, NORM_2,
182            NORM_INFINITY, NORM_1_AND_2
183 
184 M*/
185 
186 /*MC
187      NORM_INFINITY - ||v|| = max_i |v_i|. ||A|| = max_i || v_i* ||, maximum row sum
188 
189    Level: beginner
190 
191 .seealso:  NormType, MatNorm(), VecNorm(), VecNormBegin(), VecNormEnd(), NORM_1, NORM_2,
192            NORM_FROBINIUS, NORM_1_AND_2
193 
194 M*/
195 
196 /*MC
197      NORM_1_AND_2 - computes both the 1 and 2 norm of a vector
198 
199    Level: beginner
200 
201 .seealso:  NormType, MatNorm(), VecNorm(), VecNormBegin(), VecNormEnd(), NORM_1, NORM_2,
202            NORM_FROBINIUS, NORM_INFINITY
203 
204 M*/
205 
206 /*MC
207      NORM_MAX - see NORM_INFINITY
208 
209    Level: beginner
210 
211 M*/
212 
213 PETSC_EXTERN PetscErrorCode VecNorm(Vec,NormType,PetscReal *);
214 PETSC_EXTERN PetscErrorCode VecNormAvailable(Vec,NormType,PetscBool *,PetscReal *);
215 PETSC_EXTERN PetscErrorCode VecNormalize(Vec,PetscReal *);
216 PETSC_EXTERN PetscErrorCode VecSum(Vec,PetscScalar*);
217 PETSC_EXTERN PetscErrorCode VecMax(Vec,PetscInt*,PetscReal *);
218 PETSC_EXTERN PetscErrorCode VecMin(Vec,PetscInt*,PetscReal *);
219 PETSC_EXTERN PetscErrorCode VecScale(Vec,PetscScalar);
220 PETSC_EXTERN PetscErrorCode VecCopy(Vec,Vec);
221 PETSC_EXTERN PetscErrorCode VecSetRandom(Vec,PetscRandom);
222 PETSC_EXTERN PetscErrorCode VecSet(Vec,PetscScalar);
223 PETSC_EXTERN PetscErrorCode VecSwap(Vec,Vec);
224 PETSC_EXTERN PetscErrorCode VecAXPY(Vec,PetscScalar,Vec);
225 PETSC_EXTERN PetscErrorCode VecAXPBY(Vec,PetscScalar,PetscScalar,Vec);
226 PETSC_EXTERN PetscErrorCode VecMAXPY(Vec,PetscInt,const PetscScalar[],Vec[]);
227 PETSC_EXTERN PetscErrorCode VecAYPX(Vec,PetscScalar,Vec);
228 PETSC_EXTERN PetscErrorCode VecWAXPY(Vec,PetscScalar,Vec,Vec);
229 PETSC_EXTERN PetscErrorCode VecAXPBYPCZ(Vec,PetscScalar,PetscScalar,PetscScalar,Vec,Vec);
230 PETSC_EXTERN PetscErrorCode VecPointwiseMax(Vec,Vec,Vec);
231 PETSC_EXTERN PetscErrorCode VecPointwiseMaxAbs(Vec,Vec,Vec);
232 PETSC_EXTERN PetscErrorCode VecPointwiseMin(Vec,Vec,Vec);
233 PETSC_EXTERN PetscErrorCode VecPointwiseMult(Vec,Vec,Vec);
234 PETSC_EXTERN PetscErrorCode VecPointwiseDivide(Vec,Vec,Vec);
235 PETSC_EXTERN PetscErrorCode VecMaxPointwiseDivide(Vec,Vec,PetscReal*);
236 PETSC_EXTERN PetscErrorCode VecShift(Vec,PetscScalar);
237 PETSC_EXTERN PetscErrorCode VecReciprocal(Vec);
238 PETSC_EXTERN PetscErrorCode VecPermute(Vec, IS, PetscBool );
239 PETSC_EXTERN PetscErrorCode VecSqrtAbs(Vec);
240 PETSC_EXTERN PetscErrorCode VecLog(Vec);
241 PETSC_EXTERN PetscErrorCode VecExp(Vec);
242 PETSC_EXTERN PetscErrorCode VecAbs(Vec);
243 PETSC_EXTERN PetscErrorCode VecDuplicate(Vec,Vec*);
244 PETSC_EXTERN PetscErrorCode VecDuplicateVecs(Vec,PetscInt,Vec*[]);
245 PETSC_EXTERN PetscErrorCode VecDestroyVecs(PetscInt, Vec*[]);
246 PETSC_EXTERN PetscErrorCode VecStrideNormAll(Vec,NormType,PetscReal[]);
247 PETSC_EXTERN PetscErrorCode VecStrideMaxAll(Vec,PetscInt [],PetscReal []);
248 PETSC_EXTERN PetscErrorCode VecStrideMinAll(Vec,PetscInt [],PetscReal []);
249 PETSC_EXTERN PetscErrorCode VecStrideScaleAll(Vec,const PetscScalar[]);
250 
251 PETSC_EXTERN PetscErrorCode VecStrideNorm(Vec,PetscInt,NormType,PetscReal*);
252 PETSC_EXTERN PetscErrorCode VecStrideMax(Vec,PetscInt,PetscInt *,PetscReal *);
253 PETSC_EXTERN PetscErrorCode VecStrideMin(Vec,PetscInt,PetscInt *,PetscReal *);
254 PETSC_EXTERN PetscErrorCode VecStrideScale(Vec,PetscInt,PetscScalar);
255 PETSC_EXTERN PetscErrorCode VecStrideSet(Vec,PetscInt,PetscScalar);
256 
257 
258 PETSC_EXTERN PetscErrorCode VecStrideGather(Vec,PetscInt,Vec,InsertMode);
259 PETSC_EXTERN PetscErrorCode VecStrideScatter(Vec,PetscInt,Vec,InsertMode);
260 PETSC_EXTERN PetscErrorCode VecStrideGatherAll(Vec,Vec[],InsertMode);
261 PETSC_EXTERN PetscErrorCode VecStrideScatterAll(Vec[],Vec,InsertMode);
262 
263 PETSC_EXTERN PetscErrorCode VecSetValues(Vec,PetscInt,const PetscInt[],const PetscScalar[],InsertMode);
264 PETSC_EXTERN PetscErrorCode VecGetValues(Vec,PetscInt,const PetscInt[],PetscScalar[]);
265 PETSC_EXTERN PetscErrorCode VecAssemblyBegin(Vec);
266 PETSC_EXTERN PetscErrorCode VecAssemblyEnd(Vec);
267 PETSC_EXTERN PetscErrorCode VecStashSetInitialSize(Vec,PetscInt,PetscInt);
268 PETSC_EXTERN PetscErrorCode VecStashView(Vec,PetscViewer);
269 PETSC_EXTERN PetscErrorCode VecStashGetInfo(Vec,PetscInt*,PetscInt*,PetscInt*,PetscInt*);
270 
271 /*MC
272    VecSetValue - Set a single entry into a vector.
273 
274    Synopsis:
275    PetscErrorCode VecSetValue(Vec v,int row,PetscScalar value, InsertMode mode);
276 
277    Not Collective
278 
279    Input Parameters:
280 +  v - the vector
281 .  row - the row location of the entry
282 .  value - the value to insert
283 -  mode - either INSERT_VALUES or ADD_VALUES
284 
285    Notes:
286    For efficiency one should use VecSetValues() and set several or
287    many values simultaneously if possible.
288 
289    These values may be cached, so VecAssemblyBegin() and VecAssemblyEnd()
290    MUST be called after all calls to VecSetValues() have been completed.
291 
292    VecSetValues() uses 0-based indices in Fortran as well as in C.
293 
294    Level: beginner
295 
296 .seealso: VecSetValues(), VecAssemblyBegin(), VecAssemblyEnd(), VecSetValuesBlockedLocal(), VecSetValueLocal()
297 M*/
298 PETSC_STATIC_INLINE PetscErrorCode VecSetValue(Vec v,PetscInt i,PetscScalar va,InsertMode mode) {return VecSetValues(v,1,&i,&va,mode);}
299 
300 
301 PETSC_EXTERN PetscErrorCode VecSetBlockSize(Vec,PetscInt);
302 PETSC_EXTERN PetscErrorCode VecGetBlockSize(Vec,PetscInt*);
303 PETSC_EXTERN PetscErrorCode VecSetValuesBlocked(Vec,PetscInt,const PetscInt[],const PetscScalar[],InsertMode);
304 
305 /* Dynamic creation and loading functions */
306 PETSC_EXTERN PetscFList VecList;
307 PETSC_EXTERN PetscBool VecRegisterAllCalled;
308 PETSC_EXTERN PetscErrorCode VecSetType(Vec, const VecType);
309 PETSC_EXTERN PetscErrorCode VecGetType(Vec, const VecType *);
310 PETSC_EXTERN PetscErrorCode VecRegister(const char[],const char[],const char[],PetscErrorCode (*)(Vec));
311 PETSC_EXTERN PetscErrorCode VecRegisterAll(const char []);
312 PETSC_EXTERN PetscErrorCode VecRegisterDestroy(void);
313 
314 /*MC
315   VecRegisterDynamic - Adds a new vector component implementation
316 
317   Synopsis:
318   PetscErrorCode VecRegisterDynamic(const char *name, const char *path, const char *func_name, PetscErrorCode (*create_func)(Vec))
319 
320   Not Collective
321 
322   Input Parameters:
323 + name        - The name of a new user-defined creation routine
324 . path        - The path (either absolute or relative) of the library containing this routine
325 . func_name   - The name of routine to create method context
326 - create_func - The creation routine itself
327 
328   Notes:
329   VecRegisterDynamic() may be called multiple times to add several user-defined vectors
330 
331   If dynamic libraries are used, then the fourth input argument (routine_create) is ignored.
332 
333   Sample usage:
334 .vb
335     VecRegisterDynamic("my_vec","/home/username/my_lib/lib/libO/solaris/libmy.a", "MyVectorCreate", MyVectorCreate);
336 .ve
337 
338   Then, your vector type can be chosen with the procedural interface via
339 .vb
340     VecCreate(MPI_Comm, Vec *);
341     VecSetType(Vec,"my_vector_name");
342 .ve
343    or at runtime via the option
344 .vb
345     -vec_type my_vector_name
346 .ve
347 
348   Notes: $PETSC_ARCH occuring in pathname will be replaced with appropriate values.
349          If your function is not being put into a shared library then use VecRegister() instead
350 
351   Level: advanced
352 
353 .keywords: Vec, register
354 .seealso: VecRegisterAll(), VecRegisterDestroy(), VecRegister()
355 M*/
356 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
357 #define VecRegisterDynamic(a,b,c,d) VecRegister(a,b,c,0)
358 #else
359 #define VecRegisterDynamic(a,b,c,d) VecRegister(a,b,c,d)
360 #endif
361 
362 
363 PETSC_EXTERN PetscErrorCode VecScatterCreate(Vec,IS,Vec,IS,VecScatter *);
364 PETSC_EXTERN PetscErrorCode VecScatterCreateEmpty(MPI_Comm,VecScatter *);
365 PETSC_EXTERN PetscErrorCode VecScatterCreateLocal(VecScatter,PetscInt,const PetscInt[],const PetscInt[],const PetscInt[],PetscInt,const PetscInt[],const PetscInt[],const PetscInt[],PetscInt);
366 PETSC_EXTERN PetscErrorCode VecScatterBegin(VecScatter,Vec,Vec,InsertMode,ScatterMode);
367 PETSC_EXTERN PetscErrorCode VecScatterEnd(VecScatter,Vec,Vec,InsertMode,ScatterMode);
368 PETSC_EXTERN PetscErrorCode VecScatterDestroy(VecScatter*);
369 PETSC_EXTERN PetscErrorCode VecScatterCopy(VecScatter,VecScatter *);
370 PETSC_EXTERN PetscErrorCode VecScatterView(VecScatter,PetscViewer);
371 PETSC_EXTERN PetscErrorCode VecScatterRemap(VecScatter,PetscInt *,PetscInt*);
372 PETSC_EXTERN PetscErrorCode VecScatterGetMerged(VecScatter,PetscBool *);
373 
374 PETSC_EXTERN PetscErrorCode VecGetArray4d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar****[]);
375 PETSC_EXTERN PetscErrorCode VecRestoreArray4d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar****[]);
376 PETSC_EXTERN PetscErrorCode VecGetArray3d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar***[]);
377 PETSC_EXTERN PetscErrorCode VecRestoreArray3d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar***[]);
378 PETSC_EXTERN PetscErrorCode VecGetArray2d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar**[]);
379 PETSC_EXTERN PetscErrorCode VecRestoreArray2d(Vec,PetscInt,PetscInt,PetscInt,PetscInt,PetscScalar**[]);
380 PETSC_EXTERN PetscErrorCode VecGetArray1d(Vec,PetscInt,PetscInt,PetscScalar *[]);
381 PETSC_EXTERN PetscErrorCode VecRestoreArray1d(Vec,PetscInt,PetscInt,PetscScalar *[]);
382 
383 PETSC_EXTERN PetscErrorCode  VecTransplantPlaceArray(Vec,Vec);
384 PETSC_EXTERN PetscErrorCode  VecTransplantResetArray(Vec,Vec);
385 PETSC_EXTERN PetscErrorCode VecPlaceArray(Vec,const PetscScalar[]);
386 PETSC_EXTERN PetscErrorCode VecResetArray(Vec);
387 PETSC_EXTERN PetscErrorCode VecReplaceArray(Vec,const PetscScalar[]);
388 PETSC_EXTERN PetscErrorCode VecGetArrays(const Vec[],PetscInt,PetscScalar**[]);
389 PETSC_EXTERN PetscErrorCode VecRestoreArrays(const Vec[],PetscInt,PetscScalar**[]);
390 
391 PETSC_EXTERN PetscErrorCode VecView(Vec,PetscViewer);
392 PETSC_EXTERN PetscErrorCode VecViewFromOptions(Vec, const char *);
393 PETSC_EXTERN PetscErrorCode VecEqual(Vec,Vec,PetscBool *);
394 PETSC_EXTERN PetscErrorCode VecLoad(Vec, PetscViewer);
395 
396 PETSC_EXTERN PetscErrorCode VecGetSize(Vec,PetscInt*);
397 PETSC_EXTERN PetscErrorCode VecGetLocalSize(Vec,PetscInt*);
398 PETSC_EXTERN PetscErrorCode VecGetOwnershipRange(Vec,PetscInt*,PetscInt*);
399 PETSC_EXTERN PetscErrorCode VecGetOwnershipRanges(Vec,const PetscInt *[]);
400 
401 PETSC_EXTERN PetscErrorCode VecSetLocalToGlobalMapping(Vec,ISLocalToGlobalMapping);
402 PETSC_EXTERN PetscErrorCode VecSetValuesLocal(Vec,PetscInt,const PetscInt[],const PetscScalar[],InsertMode);
403 
404 /*MC
405    VecSetValueLocal - Set a single entry into a vector using the local numbering
406 
407    Synopsis:
408    PetscErrorCode VecSetValueLocal(Vec v,int row,PetscScalar value, InsertMode mode);
409 
410    Not Collective
411 
412    Input Parameters:
413 +  v - the vector
414 .  row - the row location of the entry
415 .  value - the value to insert
416 -  mode - either INSERT_VALUES or ADD_VALUES
417 
418    Notes:
419    For efficiency one should use VecSetValues() and set several or
420    many values simultaneously if possible.
421 
422    These values may be cached, so VecAssemblyBegin() and VecAssemblyEnd()
423    MUST be called after all calls to VecSetValues() have been completed.
424 
425    VecSetValues() uses 0-based indices in Fortran as well as in C.
426 
427    Level: beginner
428 
429 .seealso: VecSetValues(), VecAssemblyBegin(), VecAssemblyEnd(), VecSetValuesBlockedLocal(), VecSetValue()
430 M*/
431 PETSC_STATIC_INLINE PetscErrorCode VecSetValueLocal(Vec v,PetscInt i,PetscScalar va,InsertMode mode) {return VecSetValuesLocal(v,1,&i,&va,mode);}
432 
433 PETSC_EXTERN PetscErrorCode VecSetLocalToGlobalMappingBlock(Vec,ISLocalToGlobalMapping);
434 PETSC_EXTERN PetscErrorCode VecSetValuesBlockedLocal(Vec,PetscInt,const PetscInt[],const PetscScalar[],InsertMode);
435 PETSC_EXTERN PetscErrorCode VecGetLocalToGlobalMappingBlock(Vec,ISLocalToGlobalMapping*);
436 PETSC_EXTERN PetscErrorCode VecGetLocalToGlobalMapping(Vec,ISLocalToGlobalMapping*);
437 
438 PETSC_EXTERN PetscErrorCode VecDotBegin(Vec,Vec,PetscScalar *);
439 PETSC_EXTERN PetscErrorCode VecDotEnd(Vec,Vec,PetscScalar *);
440 PETSC_EXTERN PetscErrorCode VecTDotBegin(Vec,Vec,PetscScalar *);
441 PETSC_EXTERN PetscErrorCode VecTDotEnd(Vec,Vec,PetscScalar *);
442 PETSC_EXTERN PetscErrorCode VecNormBegin(Vec,NormType,PetscReal *);
443 PETSC_EXTERN PetscErrorCode VecNormEnd(Vec,NormType,PetscReal *);
444 
445 PETSC_EXTERN PetscErrorCode VecMDotBegin(Vec,PetscInt,const Vec[],PetscScalar[]);
446 PETSC_EXTERN PetscErrorCode VecMDotEnd(Vec,PetscInt,const Vec[],PetscScalar[]);
447 PETSC_EXTERN PetscErrorCode VecMTDotBegin(Vec,PetscInt,const Vec[],PetscScalar[]);
448 PETSC_EXTERN PetscErrorCode VecMTDotEnd(Vec,PetscInt,const Vec[],PetscScalar[]);
449 PETSC_EXTERN PetscErrorCode PetscCommSplitReductionBegin(MPI_Comm);
450 
451 
452 #if defined(PETSC_USE_DEBUG)
453 #define VecValidValues(vec,argnum,input) do {                           \
454     PetscErrorCode     _ierr;                                           \
455     PetscInt          _n,_i;                                            \
456     const PetscScalar *_x;                                              \
457                                                                         \
458     if (vec->petscnative || vec->ops->getarray) {                       \
459       _ierr = VecGetLocalSize(vec,&_n);CHKERRQ(_ierr);                  \
460       _ierr = VecGetArrayRead(vec,&_x);CHKERRQ(_ierr);                  \
461       for (_i=0; _i<_n; _i++) {                                         \
462         if (input) {                                                    \
463           if (PetscIsInfOrNanScalar(_x[_i])) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FP,"Vec entry at local location %D is not-a-number or infinite at beginning of function: Parameter number %d",_i,argnum); \
464         } else {                                                        \
465           if (PetscIsInfOrNanScalar(_x[_i])) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FP,"Vec entry at local location %D is not-a-number or infinite at end of function: Parameter number %d",_i,argnum); \
466         }                                                               \
467       }                                                                 \
468       _ierr = VecRestoreArrayRead(vec,&_x);CHKERRQ(_ierr);              \
469     }                                                                   \
470   } while (0)
471 #else
472 #define VecValidValues(vec,argnum,input)
473 #endif
474 
475 
476 typedef enum {VEC_IGNORE_OFF_PROC_ENTRIES,VEC_IGNORE_NEGATIVE_INDICES} VecOption;
477 PETSC_EXTERN PetscErrorCode VecSetOption(Vec,VecOption,PetscBool );
478 
479 /*
480    Expose VecGetArray()/VecRestoreArray() to users. Allows this to work without any function
481    call overhead on any 'native' Vecs.
482 */
483 
484 #include "petsc-private/vecimpl.h"
485 
486 PETSC_EXTERN PetscErrorCode VecContourScale(Vec,PetscReal,PetscReal);
487 
488 /*
489     These numbers need to match the entries in
490   the function table in vecimpl.h
491 */
492 typedef enum { VECOP_VIEW = 33, VECOP_LOAD = 41, VECOP_DUPLICATE = 0} VecOperation;
493 PETSC_EXTERN PetscErrorCode VecSetOperation(Vec,VecOperation,void(*)(void));
494 
495 /*
496      Routines for dealing with ghosted vectors:
497   vectors with ghost elements at the end of the array.
498 */
499 PETSC_EXTERN PetscErrorCode VecMPISetGhost(Vec,PetscInt,const PetscInt[]);
500 PETSC_EXTERN PetscErrorCode VecCreateGhost(MPI_Comm,PetscInt,PetscInt,PetscInt,const PetscInt[],Vec*);
501 PETSC_EXTERN PetscErrorCode VecCreateGhostWithArray(MPI_Comm,PetscInt,PetscInt,PetscInt,const PetscInt[],const PetscScalar[],Vec*);
502 PETSC_EXTERN PetscErrorCode VecCreateGhostBlock(MPI_Comm,PetscInt,PetscInt,PetscInt,PetscInt,const PetscInt[],Vec*);
503 PETSC_EXTERN PetscErrorCode VecCreateGhostBlockWithArray(MPI_Comm,PetscInt,PetscInt,PetscInt,PetscInt,const PetscInt[],const PetscScalar[],Vec*);
504 PETSC_EXTERN PetscErrorCode VecGhostGetLocalForm(Vec,Vec*);
505 PETSC_EXTERN PetscErrorCode VecGhostRestoreLocalForm(Vec,Vec*);
506 PETSC_EXTERN PetscErrorCode VecGhostUpdateBegin(Vec,InsertMode,ScatterMode);
507 PETSC_EXTERN PetscErrorCode VecGhostUpdateEnd(Vec,InsertMode,ScatterMode);
508 
509 PETSC_EXTERN PetscErrorCode VecConjugate(Vec);
510 
511 PETSC_EXTERN PetscErrorCode VecScatterCreateToAll(Vec,VecScatter*,Vec*);
512 PETSC_EXTERN PetscErrorCode VecScatterCreateToZero(Vec,VecScatter*,Vec*);
513 
514 PETSC_EXTERN PetscErrorCode PetscViewerMathematicaGetVector(PetscViewer, Vec);
515 PETSC_EXTERN PetscErrorCode PetscViewerMathematicaPutVector(PetscViewer, Vec);
516 
517 /*S
518      Vecs - Collection of vectors where the data for the vectors is stored in
519             one contiguous memory
520 
521    Level: advanced
522 
523    Notes:
524     Temporary construct for handling multiply right hand side solves
525 
526     This is faked by storing a single vector that has enough array space for
527     n vectors
528 
529   Concepts: parallel decomposition
530 
531 S*/
532         struct _n_Vecs  {PetscInt n; Vec v;};
533 typedef struct _n_Vecs* Vecs;
534 #define VecsDestroy(x)            (VecDestroy(&(x)->v)         || PetscFree(x))
535 #define VecsCreateSeq(comm,p,m,x) (PetscNew(struct _n_Vecs,x) || VecCreateSeq(comm,p*m,&(*(x))->v) || (-1 == ((*(x))->n = (m))))
536 #define VecsCreateSeqWithArray(comm,p,m,a,x) (PetscNew(struct _n_Vecs,x) || VecCreateSeqWithArray(comm,1,p*m,a,&(*(x))->v) || (-1 == ((*(x))->n = (m))))
537 #define VecsDuplicate(x,y)        (PetscNew(struct _n_Vecs,y) || VecDuplicate(x->v,&(*(y))->v) || (-1 == ((*(y))->n = (x)->n)))
538 
539 #if defined(PETSC_HAVE_CUSP)
540 typedef struct _p_PetscCUSPIndices* PetscCUSPIndices;
541 PETSC_EXTERN PetscErrorCode PetscCUSPIndicesCreate(PetscInt, PetscInt*,PetscInt, PetscInt*,PetscCUSPIndices*);
542 PETSC_EXTERN PetscErrorCode PetscCUSPIndicesDestroy(PetscCUSPIndices*);
543 PETSC_EXTERN PetscErrorCode VecCUSPCopyToGPUSome_Public(Vec,PetscCUSPIndices);
544 PETSC_EXTERN PetscErrorCode VecCUSPCopyFromGPUSome_Public(Vec,PetscCUSPIndices);
545 
546 #if defined(PETSC_HAVE_TXPETSCGPU)
547 PETSC_EXTERN PetscErrorCode VecCUSPResetIndexBuffersFlagsGPU_Public(PetscCUSPIndices);
548 PETSC_EXTERN PetscErrorCode VecCUSPCopySomeToContiguousBufferGPU_Public(Vec,PetscCUSPIndices);
549 PETSC_EXTERN PetscErrorCode VecCUSPCopySomeFromContiguousBufferGPU_Public(Vec,PetscCUSPIndices);
550 PETSC_EXTERN PetscErrorCode VecScatterInitializeForGPU(VecScatter,Vec,ScatterMode);
551 PETSC_EXTERN PetscErrorCode VecScatterFinalizeForGPU(VecScatter);
552 #endif
553 
554 PETSC_EXTERN PetscErrorCode VecCreateSeqCUSP(MPI_Comm,PetscInt,Vec*);
555 PETSC_EXTERN PetscErrorCode VecCreateMPICUSP(MPI_Comm,PetscInt,PetscInt,Vec*);
556 #endif
557 
558 #if defined(PETSC_HAVE_PTHREADCLASSES)
559 PETSC_EXTERN PetscErrorCode VecSetNThreads(Vec,PetscInt);
560 PETSC_EXTERN PetscErrorCode VecGetNThreads(Vec,PetscInt*);
561 PETSC_EXTERN PetscErrorCode VecGetThreadOwnershipRange(Vec,PetscInt,PetscInt*,PetscInt*);
562 PETSC_EXTERN PetscErrorCode VecSetThreadAffinities(Vec,const PetscInt[]);
563 PETSC_EXTERN PetscErrorCode VecCreateSeqPThread(MPI_Comm,PetscInt,PetscInt,PetscInt[],Vec*);
564 PETSC_EXTERN PetscErrorCode VecCreateMPIPThread(MPI_Comm,PetscInt,PetscInt,PetscInt,PetscInt[],Vec*);
565 #endif
566 
567 PETSC_EXTERN PetscErrorCode VecNestGetSubVecs(Vec,PetscInt*,Vec**);
568 PETSC_EXTERN PetscErrorCode VecNestGetSubVec(Vec,PetscInt,Vec*);
569 PETSC_EXTERN PetscErrorCode VecNestSetSubVecs(Vec,PetscInt,PetscInt*,Vec*);
570 PETSC_EXTERN PetscErrorCode VecNestSetSubVec(Vec,PetscInt,Vec);
571 PETSC_EXTERN PetscErrorCode VecCreateNest(MPI_Comm,PetscInt,IS*,Vec*,Vec*);
572 PETSC_EXTERN PetscErrorCode VecNestGetSize(Vec,PetscInt*);
573 
574 #endif
575 
576