xref: /petsc/include/petscpc.h (revision 71fd2e92b2fee25f70818ffc1dca9fc57f8584d7) 
1 /*
2       Preconditioner module.
3 */
4 #if !defined(__PETSCPC_H)
5 #define __PETSCPC_H
6 #include "petscmat.h"
7 PETSC_EXTERN_CXX_BEGIN
8 
9 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT  PCInitializePackage(const char[]);
10 
11 /*
12     PCList contains the list of preconditioners currently registered
13    These are added with the PCRegisterDynamic() macro
14 */
15 extern PetscFList PCList;
16 
17 /*S
18      PC - Abstract PETSc object that manages all preconditioners
19 
20    Level: beginner
21 
22   Concepts: preconditioners
23 
24 .seealso:  PCCreate(), PCSetType(), PCType (for list of available types)
25 S*/
26 typedef struct _p_PC* PC;
27 
28 /*E
29     PCType - String with the name of a PETSc preconditioner method or the creation function
30        with an optional dynamic library name, for example
31        http://www.mcs.anl.gov/petsc/lib.a:mypccreate()
32 
33    Level: beginner
34 
35    Notes: Click on the links below to see details on a particular solver
36 
37 .seealso: PCSetType(), PC, PCCreate()
38 E*/
39 #define PCType char*
40 #define PCNONE            "none"
41 #define PCJACOBI          "jacobi"
42 #define PCSOR             "sor"
43 #define PCLU              "lu"
44 #define PCSHELL           "shell"
45 #define PCBJACOBI         "bjacobi"
46 #define PCMG              "mg"
47 #define PCEISENSTAT       "eisenstat"
48 #define PCILU             "ilu"
49 #define PCICC             "icc"
50 #define PCASM             "asm"
51 #define PCKSP             "ksp"
52 #define PCCOMPOSITE       "composite"
53 #define PCREDUNDANT       "redundant"
54 #define PCSPAI            "spai"
55 #define PCNN              "nn"
56 #define PCCHOLESKY        "cholesky"
57 #define PCSAMG            "samg"
58 #define PCPBJACOBI        "pbjacobi"
59 #define PCMAT             "mat"
60 #define PCHYPRE           "hypre"
61 #define PCFIELDSPLIT      "fieldsplit"
62 #define PCTFS             "tfs"
63 #define PCML              "ml"
64 #define PCPROMETHEUS      "prometheus"
65 #define PCGALERKIN        "galerkin"
66 #define PCEXOTIC          "exotic"
67 #define PCOPENMP          "openmp"
68 #define PCSUPPORTGRAPH    "supportgraph"
69 #define PCASA             "asa"
70 #define PCCP              "cp"
71 #define PCBFBT            "bfbt"
72 #define PCLSC             "lsc"
73 #define PCPYTHON          "python"
74 #define PCPFMG            "pfmg"
75 #define PCREDISTRIBUTE    "redistribute"
76 
77 /* Logging support */
78 extern PetscCookie PETSCKSP_DLLEXPORT PC_COOKIE;
79 
80 /*E
81     PCSide - If the preconditioner is to be applied to the left, right
82      or symmetrically around the operator.
83 
84    Level: beginner
85 
86 .seealso:
87 E*/
88 typedef enum { PC_LEFT,PC_RIGHT,PC_SYMMETRIC } PCSide;
89 extern const char *PCSides[];
90 
91 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCreate(MPI_Comm,PC*);
92 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetType(PC,const PCType);
93 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetUp(PC);
94 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetUpOnBlocks(PC);
95 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApply(PC,Vec,Vec);
96 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplySymmetricLeft(PC,Vec,Vec);
97 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplySymmetricRight(PC,Vec,Vec);
98 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyBAorAB(PC,PCSide,Vec,Vec,Vec);
99 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyTranspose(PC,Vec,Vec);
100 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyTransposeExists(PC,PetscTruth*);
101 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyBAorABTranspose(PC,PCSide,Vec,Vec,Vec);
102 
103 /*E
104     PCRichardsonConvergedReason - reason a PCApplyRichardson method terminates
105 
106    Level: advanced
107 
108    Notes: this must match finclude/petscpc.h and the KSPConvergedReason values in petscksp.h
109 
110 .seealso: PCApplyRichardson()
111 E*/
112 typedef enum {
113               PCRICHARDSON_CONVERGED_RTOL               =  2,
114               PCRICHARDSON_CONVERGED_ATOL               =  3,
115               PCRICHARDSON_CONVERGED_ITS                =  4,
116               PCRICHARDSON_DIVERGED_DTOL                = -4} PCRichardsonConvergedReason;
117 
118 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyRichardson(PC,Vec,Vec,Vec,PetscReal,PetscReal,PetscReal,PetscInt,PetscTruth,PetscInt*,PCRichardsonConvergedReason*);
119 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCApplyRichardsonExists(PC,PetscTruth*);
120 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetInitialGuessNonzero(PC,PetscTruth);
121 
122 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRegisterDestroy(void);
123 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRegisterAll(const char[]);
124 extern PetscTruth PCRegisterAllCalled;
125 
126 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRegister(const char[],const char[],const char[],PetscErrorCode(*)(PC));
127 
128 /*MC
129    PCRegisterDynamic - Adds a method to the preconditioner package.
130 
131    Synopsis:
132    PetscErrorCode PCRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(PC))
133 
134    Not collective
135 
136    Input Parameters:
137 +  name_solver - name of a new user-defined solver
138 .  path - path (either absolute or relative) the library containing this solver
139 .  name_create - name of routine to create method context
140 -  routine_create - routine to create method context
141 
142    Notes:
143    PCRegisterDynamic() may be called multiple times to add several user-defined preconditioners.
144 
145    If dynamic libraries are used, then the fourth input argument (routine_create)
146    is ignored.
147 
148    Sample usage:
149 .vb
150    PCRegisterDynamic("my_solver","/home/username/my_lib/lib/libO/solaris/mylib",
151               "MySolverCreate",MySolverCreate);
152 .ve
153 
154    Then, your solver can be chosen with the procedural interface via
155 $     PCSetType(pc,"my_solver")
156    or at runtime via the option
157 $     -pc_type my_solver
158 
159    Level: advanced
160 
161    Notes: ${PETSC_ARCH}, ${PETSC_DIR}, ${PETSC_LIB_DIR},  or ${any environmental variable}
162            occuring in pathname will be replaced with appropriate values.
163          If your function is not being put into a shared library then use PCRegister() instead
164 
165 .keywords: PC, register
166 
167 .seealso: PCRegisterAll(), PCRegisterDestroy()
168 M*/
169 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
170 #define PCRegisterDynamic(a,b,c,d) PCRegister(a,b,c,0)
171 #else
172 #define PCRegisterDynamic(a,b,c,d) PCRegister(a,b,c,d)
173 #endif
174 
175 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCDestroy(PC);
176 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetFromOptions(PC);
177 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGetType(PC,const PCType*);
178 
179 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorGetMatrix(PC,Mat*);
180 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetModifySubMatrices(PC,PetscErrorCode(*)(PC,PetscInt,const IS[],const IS[],Mat[],void*),void*);
181 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCModifySubMatrices(PC,PetscInt,const IS[],const IS[],Mat[],void*);
182 
183 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetOperators(PC,Mat,Mat,MatStructure);
184 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGetOperators(PC,Mat*,Mat*,MatStructure*);
185 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGetOperatorsSet(PC,PetscTruth*,PetscTruth*);
186 
187 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCView(PC,PetscViewer);
188 
189 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetOptionsPrefix(PC,const char[]);
190 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCAppendOptionsPrefix(PC,const char[]);
191 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGetOptionsPrefix(PC,const char*[]);
192 
193 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCComputeExplicitOperator(PC,Mat*);
194 
195 /*
196       These are used to provide extra scaling of preconditioned
197    operator for time-stepping schemes like in SUNDIALS
198 */
199 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCDiagonalScale(PC,PetscTruth*);
200 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCDiagonalScaleLeft(PC,Vec,Vec);
201 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCDiagonalScaleRight(PC,Vec,Vec);
202 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCDiagonalScaleSet(PC,Vec);
203 
204 /* ------------- options specific to particular preconditioners --------- */
205 
206 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCJacobiSetUseRowMax(PC);
207 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCJacobiSetUseRowSum(PC);
208 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCJacobiSetUseAbs(PC);
209 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSORSetSymmetric(PC,MatSORType);
210 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSORSetOmega(PC,PetscReal);
211 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSORSetIterations(PC,PetscInt,PetscInt);
212 
213 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCEisenstatSetOmega(PC,PetscReal);
214 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCEisenstatNoDiagonalScaling(PC);
215 
216 #define USE_PRECONDITIONER_MATRIX 0
217 #define USE_TRUE_MATRIX           1
218 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCBJacobiSetUseTrueLocal(PC);
219 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCBJacobiSetTotalBlocks(PC,PetscInt,const PetscInt[]);
220 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCBJacobiSetLocalBlocks(PC,PetscInt,const PetscInt[]);
221 
222 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCKSPSetUseTrue(PC);
223 
224 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetApply(PC,PetscErrorCode (*)(PC,Vec,Vec));
225 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetApplyBA(PC,PetscErrorCode (*)(PC,PCSide,Vec,Vec,Vec));
226 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetApplyTranspose(PC,PetscErrorCode (*)(PC,Vec,Vec));
227 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetSetUp(PC,PetscErrorCode (*)(PC));
228 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetApplyRichardson(PC,PetscErrorCode (*)(PC,Vec,Vec,Vec,PetscReal,PetscReal,PetscReal,PetscInt,PetscTruth,PetscInt*,PCRichardsonConvergedReason*));
229 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetView(PC,PetscErrorCode (*)(PC,PetscViewer));
230 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetDestroy(PC,PetscErrorCode (*)(PC));
231 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellGetContext(PC,void**);
232 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetContext(PC,void*);
233 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellSetName(PC,const char[]);
234 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCShellGetName(PC,char*[]);
235 
236 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetZeroPivot(PC,PetscReal);
237 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetShiftNonzero(PC,PetscReal);
238 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetShiftPd(PC,PetscTruth);
239 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetShiftInBlocks(PC,PetscReal);
240 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetMatSolverPackage(PC,const MatSolverPackage);
241 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorGetMatSolverPackage(PC,const MatSolverPackage*);
242 
243 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetFill(PC,PetscReal);
244 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetColumnPivot(PC,PetscReal);
245 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorReorderForNonzeroDiagonal(PC,PetscReal);
246 
247 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetMatOrderingType(PC,const MatOrderingType);
248 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetReuseOrdering(PC,PetscTruth);
249 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetReuseFill(PC,PetscTruth);
250 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetUseInPlace(PC);
251 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetAllowDiagonalFill(PC);
252 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetPivotInBlocks(PC,PetscTruth);
253 
254 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetLevels(PC,PetscInt);
255 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFactorSetUseDropTolerance(PC,PetscReal,PetscReal,PetscInt);
256 
257 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetLocalSubdomains(PC,PetscInt,IS[],IS[]);
258 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetTotalSubdomains(PC,PetscInt,IS[],IS[]);
259 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetOverlap(PC,PetscInt);
260 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetSortIndices(PC,PetscTruth);
261 /*E
262     PCASMType - Type of additive Schwarz method to use
263 
264 $  PC_ASM_BASIC - symmetric version where residuals from the ghost points are used
265 $                 and computed values in ghost regions are added together. Classical
266 $                 standard additive Schwarz
267 $  PC_ASM_RESTRICT - residuals from ghost points are used but computed values in ghost
268 $                    region are discarded. Default
269 $  PC_ASM_INTERPOLATE - residuals from ghost points are not used, computed values in ghost
270 $                       region are added back in
271 $  PC_ASM_NONE - ghost point residuals are not used, computed ghost values are discarded
272 $                not very good.
273 
274    Level: beginner
275 
276 .seealso: PCASMSetType()
277 E*/
278 typedef enum {PC_ASM_BASIC = 3,PC_ASM_RESTRICT = 1,PC_ASM_INTERPOLATE = 2,PC_ASM_NONE = 0} PCASMType;
279 extern const char *PCASMTypes[];
280 
281 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetType(PC,PCASMType);
282 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMCreateSubdomains(Mat,PetscInt,IS*[]);
283 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMDestroySubdomains(PetscInt,IS[],IS[]);
284 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMCreateSubdomains2D(PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt *,IS **);
285 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMSetUseInPlace(PC);
286 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMGetLocalSubdomains(PC,PetscInt*,IS*[],IS*[]);
287 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCASMGetLocalSubmatrices(PC,PetscInt*,Mat*[]);
288 
289 /*E
290     PCCompositeType - Determines how two or more preconditioner are composed
291 
292 $  PC_COMPOSITE_ADDITIVE - results from application of all preconditioners are added together
293 $  PC_COMPOSITE_MULTIPLICATIVE - preconditioners are applied sequentially to the residual freshly
294 $                                computed after the previous preconditioner application
295 $  PC_COMPOSITE_SYMMETRIC_MULTIPLICATIVE - preconditioners are applied sequentially to the residual freshly
296 $                                computed from first preconditioner to last and then back (Use only for symmetric matrices and preconditions)
297 $  PC_COMPOSITE_SPECIAL - This is very special for a matrix of the form alpha I + R + S
298 $                         where first preconditioner is built from alpha I + S and second from
299 $                         alpha I + R
300 
301    Level: beginner
302 
303 .seealso: PCCompositeSetType()
304 E*/
305 typedef enum {PC_COMPOSITE_ADDITIVE,PC_COMPOSITE_MULTIPLICATIVE,PC_COMPOSITE_SYMMETRIC_MULTIPLICATIVE,PC_COMPOSITE_SPECIAL,PC_COMPOSITE_SCHUR} PCCompositeType;
306 extern const char *PCCompositeTypes[];
307 
308 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCompositeSetUseTrue(PC);
309 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCompositeSetType(PC,PCCompositeType);
310 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCompositeAddPC(PC,PCType);
311 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCompositeGetPC(PC,PetscInt,PC *);
312 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCCompositeSpecialSetAlpha(PC,PetscScalar);
313 
314 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRedundantSetNumber(PC,PetscInt);
315 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRedundantSetScatter(PC,VecScatter,VecScatter);
316 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRedundantGetOperators(PC,Mat*,Mat*);
317 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCRedundantGetPC(PC,PC*);
318 
319 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetEpsilon(PC,double);
320 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetNBSteps(PC,PetscInt);
321 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetMax(PC,PetscInt);
322 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetMaxNew(PC,PetscInt);
323 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetBlockSize(PC,PetscInt);
324 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetCacheSize(PC,PetscInt);
325 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetVerbose(PC,PetscInt);
326 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSPAISetSp(PC,PetscInt);
327 
328 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCHYPRESetType(PC,const char[]);
329 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCHYPREGetType(PC,const char*[]);
330 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCBJacobiGetLocalBlocks(PC,PetscInt*,const PetscInt*[]);
331 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCBJacobiGetTotalBlocks(PC,PetscInt*,const PetscInt*[]);
332 
333 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSetFields(PC,PetscInt,PetscInt*);
334 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSetType(PC,PCCompositeType);
335 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSetBlockSize(PC,PetscInt);
336 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSetIS(PC,IS);
337 
338 /*E
339     PCFieldSplitSchurPreType - Determines how to precondition Schur complement
340 
341     Level: intermediate
342 
343 .seealso: PCFieldSplitSchurPrecondition()
344 E*/
345 typedef enum {PC_FIELDSPLIT_SCHUR_PRE_SELF,PC_FIELDSPLIT_SCHUR_PRE_DIAG,PC_FIELDSPLIT_SCHUR_PRE_USER} PCFieldSplitSchurPreType;
346 extern const char *PCFieldSplitSchurPreTypes[];
347 
348 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSchurPrecondition(PC,PCFieldSplitSchurPreType,Mat);
349 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitGetSchurBlocks(PC,Mat*,Mat*,Mat*,Mat*);
350 
351 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGalerkinSetRestriction(PC,Mat);
352 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCGalerkinSetInterpolation(PC,Mat);
353 
354 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSetCoordinates(PC,PetscInt,PetscReal*);
355 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCSASetVectors(PC,PetscInt,PetscReal *);
356 
357 EXTERN PetscErrorCode PETSCKSP_DLLEXPORT PCPythonSetType(PC,const char[]);
358 
359 PETSC_EXTERN_CXX_END
360 
361 #endif /* __PETSCPC_H */
362