1 /* 2 Defines the interface functions for the Krylov subspace accelerators. 3 */ 4 #ifndef __PETSCKSP_H 5 #define __PETSCKSP_H 6 #include <petscpc.h> 7 8 PETSC_EXTERN PetscErrorCode KSPInitializePackage(void); 9 10 /*S 11 KSP - Abstract PETSc object that manages all Krylov methods. This is the object that manages the 12 linear solves in PETSc (even those such as direct solvers that do no use Krylov accelerators). 13 14 Level: beginner 15 16 Concepts: Krylov methods 17 18 Notes: When a direct solver is used but no Krylov solver is used the KSP object is still used by with a 19 KSPType of KSPPREONLY (meaning application of the preconditioner is only used as the linear solver). 20 21 .seealso: KSPCreate(), KSPSetType(), KSPType, SNES, TS, PC, KSP, KSPDestroy(), KSPCG, KSPGMRES 22 S*/ 23 typedef struct _p_KSP* KSP; 24 25 /*J 26 KSPType - String with the name of a PETSc Krylov method. 27 28 Level: beginner 29 30 .seealso: KSPSetType(), KSP, KSPRegister(), KSPCreate(), KSPSetFromOptions() 31 J*/ 32 typedef const char* KSPType; 33 #define KSPRICHARDSON "richardson" 34 #define KSPCHEBYSHEV "chebyshev" 35 #define KSPCG "cg" 36 #define KSPGROPPCG "groppcg" 37 #define KSPPIPECG "pipecg" 38 #define KSPPIPECGRR "pipecgrr" 39 #define KSPPIPELCG "pipelcg" 40 #define KSPCGNE "cgne" 41 #define KSPCGNASH "nash" 42 #define KSPCGSTCG "stcg" 43 #define KSPCGGLTR "gltr" 44 #define KSPFCG "fcg" 45 #define KSPPIPEFCG "pipefcg" 46 #define KSPGMRES "gmres" 47 #define KSPPIPEFGMRES "pipefgmres" 48 #define KSPFGMRES "fgmres" 49 #define KSPLGMRES "lgmres" 50 #define KSPDGMRES "dgmres" 51 #define KSPPGMRES "pgmres" 52 #define KSPTCQMR "tcqmr" 53 #define KSPBCGS "bcgs" 54 #define KSPIBCGS "ibcgs" 55 #define KSPFBCGS "fbcgs" 56 #define KSPFBCGSR "fbcgsr" 57 #define KSPBCGSL "bcgsl" 58 #define KSPPIPEBCGS "pipebcgs" 59 #define KSPCGS "cgs" 60 #define KSPTFQMR "tfqmr" 61 #define KSPCR "cr" 62 #define KSPPIPECR "pipecr" 63 #define KSPLSQR "lsqr" 64 #define KSPPREONLY "preonly" 65 #define KSPQCG "qcg" 66 #define KSPBICG "bicg" 67 #define KSPMINRES "minres" 68 #define KSPSYMMLQ "symmlq" 69 #define KSPLCD "lcd" 70 #define KSPPYTHON "python" 71 #define KSPGCR "gcr" 72 #define KSPPIPEGCR "pipegcr" 73 #define KSPTSIRM "tsirm" 74 #define KSPCGLS "cgls" 75 #define KSPFETIDP "fetidp" 76 77 /* Logging support */ 78 PETSC_EXTERN PetscClassId KSP_CLASSID; 79 PETSC_EXTERN PetscClassId KSPGUESS_CLASSID; 80 PETSC_EXTERN PetscClassId DMKSP_CLASSID; 81 82 PETSC_EXTERN PetscErrorCode KSPCreate(MPI_Comm,KSP*); 83 PETSC_EXTERN PetscErrorCode KSPSetType(KSP,KSPType); 84 PETSC_EXTERN PetscErrorCode KSPGetType(KSP,KSPType*); 85 PETSC_EXTERN PetscErrorCode KSPSetUp(KSP); 86 PETSC_EXTERN PetscErrorCode KSPSetUpOnBlocks(KSP); 87 PETSC_EXTERN PetscErrorCode KSPSolve(KSP,Vec,Vec); 88 PETSC_EXTERN PetscErrorCode KSPSolveTranspose(KSP,Vec,Vec); 89 PETSC_EXTERN PetscErrorCode KSPReset(KSP); 90 PETSC_EXTERN PetscErrorCode KSPDestroy(KSP*); 91 PETSC_EXTERN PetscErrorCode KSPSetReusePreconditioner(KSP,PetscBool); 92 PETSC_EXTERN PetscErrorCode KSPSetSkipPCSetFromOptions(KSP,PetscBool); 93 94 PETSC_EXTERN PetscFunctionList KSPList; 95 PETSC_EXTERN PetscFunctionList KSPGuessList; 96 PETSC_EXTERN PetscErrorCode KSPRegister(const char[],PetscErrorCode (*)(KSP)); 97 98 PETSC_EXTERN PetscErrorCode KSPSetPCSide(KSP,PCSide); 99 PETSC_EXTERN PetscErrorCode KSPGetPCSide(KSP,PCSide*); 100 PETSC_EXTERN PetscErrorCode KSPSetTolerances(KSP,PetscReal,PetscReal,PetscReal,PetscInt); 101 PETSC_EXTERN PetscErrorCode KSPGetTolerances(KSP,PetscReal*,PetscReal*,PetscReal*,PetscInt*); 102 PETSC_EXTERN PetscErrorCode KSPSetInitialGuessNonzero(KSP,PetscBool); 103 PETSC_EXTERN PetscErrorCode KSPGetInitialGuessNonzero(KSP,PetscBool*); 104 PETSC_EXTERN PetscErrorCode KSPSetErrorIfNotConverged(KSP,PetscBool); 105 PETSC_EXTERN PetscErrorCode KSPGetErrorIfNotConverged(KSP,PetscBool*); 106 PETSC_EXTERN PetscErrorCode KSPSetComputeEigenvalues(KSP,PetscBool); 107 PETSC_EXTERN PetscErrorCode KSPSetComputeRitz(KSP,PetscBool); 108 PETSC_EXTERN PetscErrorCode KSPGetComputeEigenvalues(KSP,PetscBool*); 109 PETSC_EXTERN PetscErrorCode KSPSetComputeSingularValues(KSP,PetscBool); 110 PETSC_EXTERN PetscErrorCode KSPGetComputeSingularValues(KSP,PetscBool*); 111 PETSC_EXTERN PetscErrorCode KSPGetRhs(KSP,Vec*); 112 PETSC_EXTERN PetscErrorCode KSPGetSolution(KSP,Vec*); 113 PETSC_EXTERN PetscErrorCode KSPGetResidualNorm(KSP,PetscReal*); 114 PETSC_EXTERN PetscErrorCode KSPGetIterationNumber(KSP,PetscInt*); 115 PETSC_EXTERN PetscErrorCode KSPGetTotalIterations(KSP,PetscInt*); 116 PETSC_EXTERN PetscErrorCode KSPCreateVecs(KSP,PetscInt,Vec**,PetscInt,Vec**); 117 PETSC_DEPRECATED("Use KSPCreateVecs()") PETSC_STATIC_INLINE PetscErrorCode KSPGetVecs(KSP ksp,PetscInt n,Vec **x,PetscInt m,Vec **y) {return KSPCreateVecs(ksp,n,x,m,y);} 118 119 PETSC_EXTERN PetscErrorCode KSPSetPreSolve(KSP,PetscErrorCode (*)(KSP,Vec,Vec,void*),void*); 120 PETSC_EXTERN PetscErrorCode KSPSetPostSolve(KSP,PetscErrorCode (*)(KSP,Vec,Vec,void*),void*); 121 122 PETSC_EXTERN PetscErrorCode KSPSetPC(KSP,PC); 123 PETSC_EXTERN PetscErrorCode KSPGetPC(KSP,PC*); 124 125 PETSC_EXTERN PetscErrorCode KSPMonitor(KSP,PetscInt,PetscReal); 126 PETSC_EXTERN PetscErrorCode KSPMonitorSet(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,void*),void*,PetscErrorCode (*)(void**)); 127 PETSC_EXTERN PetscErrorCode KSPMonitorCancel(KSP); 128 PETSC_EXTERN PetscErrorCode KSPGetMonitorContext(KSP,void**); 129 PETSC_EXTERN PetscErrorCode KSPGetResidualHistory(KSP,PetscReal*[],PetscInt*); 130 PETSC_EXTERN PetscErrorCode KSPSetResidualHistory(KSP,PetscReal[],PetscInt,PetscBool ); 131 132 PETSC_EXTERN PetscErrorCode KSPBuildSolutionDefault(KSP,Vec,Vec*); 133 PETSC_EXTERN PetscErrorCode KSPBuildResidualDefault(KSP,Vec,Vec,Vec*); 134 PETSC_EXTERN PetscErrorCode KSPDestroyDefault(KSP); 135 PETSC_EXTERN PetscErrorCode KSPSetWorkVecs(KSP,PetscInt); 136 137 PETSC_EXTERN PetscErrorCode PCKSPGetKSP(PC,KSP*); 138 PETSC_EXTERN PetscErrorCode PCBJacobiGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]); 139 PETSC_EXTERN PetscErrorCode PCASMGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]); 140 PETSC_EXTERN PetscErrorCode PCGASMGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]); 141 PETSC_EXTERN PetscErrorCode PCFieldSplitGetSubKSP(PC,PetscInt*,KSP*[]); 142 PETSC_EXTERN PetscErrorCode PCMGGetSmoother(PC,PetscInt,KSP*); 143 PETSC_EXTERN PetscErrorCode PCMGGetSmootherDown(PC,PetscInt,KSP*); 144 PETSC_EXTERN PetscErrorCode PCMGGetSmootherUp(PC,PetscInt,KSP*); 145 PETSC_EXTERN PetscErrorCode PCMGGetCoarseSolve(PC,KSP*); 146 PETSC_EXTERN PetscErrorCode PCGalerkinGetKSP(PC,KSP*); 147 148 PETSC_EXTERN PetscErrorCode KSPBuildSolution(KSP,Vec,Vec*); 149 PETSC_EXTERN PetscErrorCode KSPBuildResidual(KSP,Vec,Vec,Vec*); 150 151 PETSC_EXTERN PetscErrorCode KSPRichardsonSetScale(KSP,PetscReal); 152 PETSC_EXTERN PetscErrorCode KSPRichardsonSetSelfScale(KSP,PetscBool ); 153 PETSC_EXTERN PetscErrorCode KSPChebyshevSetEigenvalues(KSP,PetscReal,PetscReal); 154 PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigSet(KSP,PetscReal,PetscReal,PetscReal,PetscReal); 155 PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigSetUseNoisy(KSP,PetscBool); 156 PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigGetKSP(KSP,KSP*); 157 PETSC_EXTERN PetscErrorCode KSPComputeExtremeSingularValues(KSP,PetscReal*,PetscReal*); 158 PETSC_EXTERN PetscErrorCode KSPComputeEigenvalues(KSP,PetscInt,PetscReal[],PetscReal[],PetscInt*); 159 PETSC_EXTERN PetscErrorCode KSPComputeEigenvaluesExplicitly(KSP,PetscInt,PetscReal[],PetscReal[]); 160 PETSC_EXTERN PetscErrorCode KSPComputeRitz(KSP,PetscBool,PetscBool,PetscInt*,Vec[],PetscReal[],PetscReal[]); 161 162 /*E 163 164 KSPFCDTruncationType - Define how stored directions are used to orthogonalize in flexible conjugate directions (FCD) methods 165 166 KSP_FCD_TRUNC_TYPE_STANDARD uses all (up to mmax) stored directions 167 KSP_FCD_TRUNC_TYPE_NOTAY uses the last max(1,mod(i,mmax)) stored directions at iteration i=0,1.. 168 169 Level: intermediate 170 .seealso : KSPFCG,KSPPIPEFCG,KSPPIPEGCR,KSPFCGSetTruncationType(),KSPFCGGetTruncationType() 171 172 E*/ 173 typedef enum {KSP_FCD_TRUNC_TYPE_STANDARD,KSP_FCD_TRUNC_TYPE_NOTAY} KSPFCDTruncationType; 174 PETSC_EXTERN const char *const KSPFCDTruncationTypes[]; 175 176 PETSC_EXTERN PetscErrorCode KSPFCGSetMmax(KSP,PetscInt); 177 PETSC_EXTERN PetscErrorCode KSPFCGGetMmax(KSP,PetscInt*); 178 PETSC_EXTERN PetscErrorCode KSPFCGSetNprealloc(KSP,PetscInt); 179 PETSC_EXTERN PetscErrorCode KSPFCGGetNprealloc(KSP,PetscInt*); 180 PETSC_EXTERN PetscErrorCode KSPFCGSetTruncationType(KSP,KSPFCDTruncationType); 181 PETSC_EXTERN PetscErrorCode KSPFCGGetTruncationType(KSP,KSPFCDTruncationType*); 182 183 PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetMmax(KSP,PetscInt); 184 PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetMmax(KSP,PetscInt*); 185 PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetNprealloc(KSP,PetscInt); 186 PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetNprealloc(KSP,PetscInt*); 187 PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetTruncationType(KSP,KSPFCDTruncationType); 188 PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetTruncationType(KSP,KSPFCDTruncationType*); 189 190 PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetMmax(KSP,PetscInt); 191 PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetMmax(KSP,PetscInt*); 192 PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetNprealloc(KSP,PetscInt); 193 PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetNprealloc(KSP,PetscInt*); 194 PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetTruncationType(KSP,KSPFCDTruncationType); 195 PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetTruncationType(KSP,KSPFCDTruncationType*); 196 PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetUnrollW(KSP,PetscBool); 197 PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetUnrollW(KSP,PetscBool*); 198 199 PETSC_EXTERN PetscErrorCode KSPGMRESSetRestart(KSP, PetscInt); 200 PETSC_EXTERN PetscErrorCode KSPGMRESGetRestart(KSP, PetscInt*); 201 PETSC_EXTERN PetscErrorCode KSPGMRESSetHapTol(KSP,PetscReal); 202 203 PETSC_EXTERN PetscErrorCode KSPGMRESSetPreAllocateVectors(KSP); 204 PETSC_EXTERN PetscErrorCode KSPGMRESSetOrthogonalization(KSP,PetscErrorCode (*)(KSP,PetscInt)); 205 PETSC_EXTERN PetscErrorCode KSPGMRESGetOrthogonalization(KSP,PetscErrorCode (**)(KSP,PetscInt)); 206 PETSC_EXTERN PetscErrorCode KSPGMRESModifiedGramSchmidtOrthogonalization(KSP,PetscInt); 207 PETSC_EXTERN PetscErrorCode KSPGMRESClassicalGramSchmidtOrthogonalization(KSP,PetscInt); 208 209 PETSC_EXTERN PetscErrorCode KSPLGMRESSetAugDim(KSP,PetscInt); 210 PETSC_EXTERN PetscErrorCode KSPLGMRESSetConstant(KSP); 211 212 PETSC_EXTERN PetscErrorCode KSPPIPEFGMRESSetShift(KSP,PetscScalar); 213 214 PETSC_EXTERN PetscErrorCode KSPGCRSetRestart(KSP,PetscInt); 215 PETSC_EXTERN PetscErrorCode KSPGCRGetRestart(KSP,PetscInt*); 216 PETSC_EXTERN PetscErrorCode KSPGCRSetModifyPC(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,void*),void*,PetscErrorCode(*)(void*)); 217 218 PETSC_EXTERN PetscErrorCode KSPFETIDPGetInnerBDDC(KSP,PC*); 219 PETSC_EXTERN PetscErrorCode KSPFETIDPSetInnerBDDC(KSP,PC); 220 PETSC_EXTERN PetscErrorCode KSPFETIDPGetInnerKSP(KSP,KSP*); 221 PETSC_EXTERN PetscErrorCode KSPFETIDPSetPressureOperator(KSP,Mat); 222 /*E 223 KSPGMRESCGSRefinementType - How the classical (unmodified) Gram-Schmidt is performed. 224 225 Level: advanced 226 227 .seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(), 228 KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSPGMRESModifiedGramSchmidtOrthogonalization() 229 230 E*/ 231 typedef enum {KSP_GMRES_CGS_REFINE_NEVER, KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS} KSPGMRESCGSRefinementType; 232 PETSC_EXTERN const char *const KSPGMRESCGSRefinementTypes[]; 233 /*MC 234 KSP_GMRES_CGS_REFINE_NEVER - Do the classical (unmodified) Gram-Schmidt process 235 236 Level: advanced 237 238 Note: Possible unstable, but the fastest to compute 239 240 .seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(), 241 KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS, 242 KSPGMRESModifiedGramSchmidtOrthogonalization() 243 M*/ 244 245 /*MC 246 KSP_GMRES_CGS_REFINE_IFNEEDED - Do the classical (unmodified) Gram-Schmidt process and one step of 247 iterative refinement if an estimate of the orthogonality of the resulting vectors indicates 248 poor orthogonality. 249 250 Level: advanced 251 252 Note: This is slower than KSP_GMRES_CGS_REFINE_NEVER because it requires an extra norm computation to 253 estimate the orthogonality but is more stable. 254 255 .seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(), 256 KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_NEVER, KSP_GMRES_CGS_REFINE_ALWAYS, 257 KSPGMRESModifiedGramSchmidtOrthogonalization() 258 M*/ 259 260 /*MC 261 KSP_GMRES_CGS_REFINE_NEVER - Do two steps of the classical (unmodified) Gram-Schmidt process. 262 263 Level: advanced 264 265 Note: This is roughly twice the cost of KSP_GMRES_CGS_REFINE_NEVER because it performs the process twice 266 but it saves the extra norm calculation needed by KSP_GMRES_CGS_REFINE_IFNEEDED. 267 268 You should only use this if you absolutely know that the iterative refinement is needed. 269 270 .seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(), 271 KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS, 272 KSPGMRESModifiedGramSchmidtOrthogonalization() 273 M*/ 274 275 PETSC_EXTERN PetscErrorCode KSPGMRESSetCGSRefinementType(KSP,KSPGMRESCGSRefinementType); 276 PETSC_EXTERN PetscErrorCode KSPGMRESGetCGSRefinementType(KSP,KSPGMRESCGSRefinementType*); 277 278 PETSC_EXTERN PetscErrorCode KSPFGMRESModifyPCNoChange(KSP,PetscInt,PetscInt,PetscReal,void*); 279 PETSC_EXTERN PetscErrorCode KSPFGMRESModifyPCKSP(KSP,PetscInt,PetscInt,PetscReal,void*); 280 PETSC_EXTERN PetscErrorCode KSPFGMRESSetModifyPC(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscInt,PetscReal,void*),void*,PetscErrorCode(*)(void*)); 281 282 PETSC_EXTERN PetscErrorCode KSPQCGSetTrustRegionRadius(KSP,PetscReal); 283 PETSC_EXTERN PetscErrorCode KSPQCGGetQuadratic(KSP,PetscReal*); 284 PETSC_EXTERN PetscErrorCode KSPQCGGetTrialStepNorm(KSP,PetscReal*); 285 286 PETSC_EXTERN PetscErrorCode KSPBCGSLSetXRes(KSP,PetscReal); 287 PETSC_EXTERN PetscErrorCode KSPBCGSLSetPol(KSP,PetscBool ); 288 PETSC_EXTERN PetscErrorCode KSPBCGSLSetEll(KSP,PetscInt); 289 PETSC_EXTERN PetscErrorCode KSPBCGSLSetUsePseudoinverse(KSP,PetscBool); 290 291 PETSC_EXTERN PetscErrorCode KSPSetFromOptions(KSP); 292 PETSC_EXTERN PetscErrorCode KSPAddOptionsChecker(PetscErrorCode (*)(KSP)); 293 294 PETSC_EXTERN PetscErrorCode KSPMonitorSingularValue(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 295 PETSC_EXTERN PetscErrorCode KSPMonitorDefault(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 296 PETSC_EXTERN PetscErrorCode KSPLSQRMonitorDefault(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 297 PETSC_EXTERN PetscErrorCode KSPMonitorRange(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 298 PETSC_EXTERN PetscErrorCode KSPMonitorDynamicTolerance(KSP ksp,PetscInt its,PetscReal fnorm,void *dummy); 299 PETSC_EXTERN PetscErrorCode KSPMonitorDynamicToleranceDestroy(void **dummy); 300 PETSC_EXTERN PetscErrorCode KSPMonitorTrueResidualNorm(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 301 PETSC_EXTERN PetscErrorCode KSPMonitorTrueResidualMaxNorm(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 302 PETSC_EXTERN PetscErrorCode KSPMonitorDefaultShort(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 303 PETSC_EXTERN PetscErrorCode KSPMonitorSolution(KSP,PetscInt,PetscReal,PetscViewerAndFormat*); 304 PETSC_EXTERN PetscErrorCode KSPMonitorSAWs(KSP,PetscInt,PetscReal,void*); 305 PETSC_EXTERN PetscErrorCode KSPMonitorSAWsCreate(KSP,void**); 306 PETSC_EXTERN PetscErrorCode KSPMonitorSAWsDestroy(void**); 307 PETSC_EXTERN PetscErrorCode KSPGMRESMonitorKrylov(KSP,PetscInt,PetscReal,void*); 308 PETSC_EXTERN PetscErrorCode KSPMonitorSetFromOptions(KSP,const char[],const char[],const char [],PetscErrorCode (*)(KSP,PetscInt,PetscReal,PetscViewerAndFormat*)); 309 310 PETSC_EXTERN PetscErrorCode KSPUnwindPreconditioner(KSP,Vec,Vec); 311 PETSC_EXTERN PetscErrorCode KSPInitialResidual(KSP,Vec,Vec,Vec,Vec,Vec); 312 313 PETSC_EXTERN PetscErrorCode KSPSetOperators(KSP,Mat,Mat); 314 PETSC_EXTERN PetscErrorCode KSPGetOperators(KSP,Mat*,Mat*); 315 PETSC_EXTERN PetscErrorCode KSPGetOperatorsSet(KSP,PetscBool*,PetscBool*); 316 PETSC_EXTERN PetscErrorCode KSPSetOptionsPrefix(KSP,const char[]); 317 PETSC_EXTERN PetscErrorCode KSPAppendOptionsPrefix(KSP,const char[]); 318 PETSC_EXTERN PetscErrorCode KSPGetOptionsPrefix(KSP,const char*[]); 319 PETSC_EXTERN PetscErrorCode KSPSetTabLevel(KSP,PetscInt); 320 PETSC_EXTERN PetscErrorCode KSPGetTabLevel(KSP,PetscInt*); 321 322 PETSC_EXTERN PetscErrorCode KSPSetDiagonalScale(KSP,PetscBool ); 323 PETSC_EXTERN PetscErrorCode KSPGetDiagonalScale(KSP,PetscBool*); 324 PETSC_EXTERN PetscErrorCode KSPSetDiagonalScaleFix(KSP,PetscBool ); 325 PETSC_EXTERN PetscErrorCode KSPGetDiagonalScaleFix(KSP,PetscBool*); 326 327 PETSC_EXTERN PetscErrorCode KSPView(KSP,PetscViewer); 328 PETSC_EXTERN PetscErrorCode KSPLoad(KSP,PetscViewer); 329 PETSC_STATIC_INLINE PetscErrorCode KSPViewFromOptions(KSP A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);} 330 PETSC_EXTERN PetscErrorCode KSPReasonView(KSP,PetscViewer); 331 PETSC_EXTERN PetscErrorCode KSPReasonViewFromOptions(KSP); 332 333 #define KSP_FILE_CLASSID 1211223 334 335 PETSC_EXTERN PetscErrorCode KSPLSQRSetStandardErrorVec(KSP,Vec); 336 PETSC_EXTERN PetscErrorCode KSPLSQRGetStandardErrorVec(KSP,Vec*); 337 PETSC_EXTERN PetscErrorCode KSPLSQRGetArnorm(KSP,PetscReal*,PetscReal*,PetscReal*); 338 339 PETSC_EXTERN PetscErrorCode PCRedundantGetKSP(PC,KSP*); 340 PETSC_EXTERN PetscErrorCode PCRedistributeGetKSP(PC,KSP*); 341 PETSC_EXTERN PetscErrorCode PCTelescopeGetKSP(PC,KSP*); 342 343 /*E 344 KSPNormType - Norm that is passed in the Krylov convergence 345 test routines. 346 347 Level: advanced 348 349 Each solver only supports a subset of these and some may support different ones 350 depending on left or right preconditioning, see KSPSetPCSide() 351 352 Notes: this must match petsc/finclude/petscksp.h 353 354 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPSetNormType(), 355 KSPSetConvergenceTest(), KSPSetPCSide() 356 E*/ 357 typedef enum {KSP_NORM_DEFAULT = -1,KSP_NORM_NONE = 0,KSP_NORM_PRECONDITIONED = 1,KSP_NORM_UNPRECONDITIONED = 2,KSP_NORM_NATURAL = 3} KSPNormType; 358 #define KSP_NORM_MAX (KSP_NORM_NATURAL + 1) 359 PETSC_EXTERN const char *const*const KSPNormTypes; 360 361 /*MC 362 KSP_NORM_NONE - Do not compute a norm during the Krylov process. This will 363 possibly save some computation but means the convergence test cannot 364 be based on a norm of a residual etc. 365 366 Level: advanced 367 368 Note: Some Krylov methods need to compute a residual norm (such as GMRES) and then this option is ignored 369 370 .seealso: KSPNormType, KSPSetNormType(), KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL 371 M*/ 372 373 /*MC 374 KSP_NORM_PRECONDITIONED - Compute the norm of the preconditioned residual B*(b - A*x), if left preconditioning, and pass that to the 375 convergence test routine. 376 377 Level: advanced 378 379 .seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL, KSPSetConvergenceTest() 380 M*/ 381 382 /*MC 383 KSP_NORM_UNPRECONDITIONED - Compute the norm of the true residual (b - A*x) and pass that to the 384 convergence test routine. 385 386 Level: advanced 387 388 .seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_PRECONDITIONED, KSP_NORM_NATURAL, KSPSetConvergenceTest() 389 M*/ 390 391 /*MC 392 KSP_NORM_NATURAL - Compute the 'natural norm' of residual sqrt((b - A*x)*B*(b - A*x)) and pass that to the 393 convergence test routine. This is only supported by KSPCG, KSPCR, KSPCGNE, KSPCGS, KSPFCG, KSPPIPEFCG, KSPPIPEGCR 394 395 Level: advanced 396 397 .seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSPSetConvergenceTest() 398 M*/ 399 400 PETSC_EXTERN PetscErrorCode KSPSetNormType(KSP,KSPNormType); 401 PETSC_EXTERN PetscErrorCode KSPGetNormType(KSP,KSPNormType*); 402 PETSC_EXTERN PetscErrorCode KSPSetSupportedNorm(KSP ksp,KSPNormType,PCSide,PetscInt); 403 PETSC_EXTERN PetscErrorCode KSPSetCheckNormIteration(KSP,PetscInt); 404 PETSC_EXTERN PetscErrorCode KSPSetLagNorm(KSP,PetscBool); 405 406 /*E 407 KSPConvergedReason - reason a Krylov method was said to have converged or diverged 408 409 Level: beginner 410 411 Notes: See KSPGetConvergedReason() for explanation of each value 412 413 Developer notes: this must match petsc/finclude/petscksp.h 414 415 The string versions of these are KSPConvergedReasons; if you change 416 any of the values here also change them that array of names. 417 418 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPSetTolerances() 419 E*/ 420 typedef enum {/* converged */ 421 KSP_CONVERGED_RTOL_NORMAL = 1, 422 KSP_CONVERGED_ATOL_NORMAL = 9, 423 KSP_CONVERGED_RTOL = 2, 424 KSP_CONVERGED_ATOL = 3, 425 KSP_CONVERGED_ITS = 4, 426 KSP_CONVERGED_CG_NEG_CURVE = 5, 427 KSP_CONVERGED_CG_CONSTRAINED = 6, 428 KSP_CONVERGED_STEP_LENGTH = 7, 429 KSP_CONVERGED_HAPPY_BREAKDOWN = 8, 430 /* diverged */ 431 KSP_DIVERGED_NULL = -2, 432 KSP_DIVERGED_ITS = -3, 433 KSP_DIVERGED_DTOL = -4, 434 KSP_DIVERGED_BREAKDOWN = -5, 435 KSP_DIVERGED_BREAKDOWN_BICG = -6, 436 KSP_DIVERGED_NONSYMMETRIC = -7, 437 KSP_DIVERGED_INDEFINITE_PC = -8, 438 KSP_DIVERGED_NANORINF = -9, 439 KSP_DIVERGED_INDEFINITE_MAT = -10, 440 KSP_DIVERGED_PCSETUP_FAILED = -11, 441 442 KSP_CONVERGED_ITERATING = 0} KSPConvergedReason; 443 PETSC_EXTERN const char *const*KSPConvergedReasons; 444 445 /*MC 446 KSP_CONVERGED_RTOL - norm(r) <= rtol*norm(b) or rtol*norm(b - A*x_0) if KSPConvergedDefaultSetUIRNorm() was called 447 448 Level: beginner 449 450 See KSPNormType and KSPSetNormType() for possible norms that may be used. By default 451 for left preconditioning it is the 2-norm of the preconditioned residual, and the 452 2-norm of the residual for right preconditioning 453 454 See also KSP_CONVERGED_ATOL which may apply before this tolerance. 455 456 .seealso: KSP_CONVERGED_ATOL, KSP_DIVERGED_DTOL, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 457 458 M*/ 459 460 /*MC 461 KSP_CONVERGED_ATOL - norm(r) <= atol 462 463 Level: beginner 464 465 See KSPNormType and KSPSetNormType() for possible norms that may be used. By default 466 for left preconditioning it is the 2-norm of the preconditioned residual, and the 467 2-norm of the residual for right preconditioning 468 469 See also KSP_CONVERGED_RTOL which may apply before this tolerance. 470 471 .seealso: KSP_CONVERGED_RTOL, KSP_DIVERGED_DTOL, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 472 473 M*/ 474 475 /*MC 476 KSP_DIVERGED_DTOL - norm(r) >= dtol*norm(b) 477 478 Level: beginner 479 480 See KSPNormType and KSPSetNormType() for possible norms that may be used. By default 481 for left preconditioning it is the 2-norm of the preconditioned residual, and the 482 2-norm of the residual for right preconditioning 483 484 Level: beginner 485 486 .seealso: KSP_CONVERGED_ATOL, KSP_DIVERGED_RTOL, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 487 488 M*/ 489 490 /*MC 491 KSP_DIVERGED_ITS - Ran out of iterations before any convergence criteria was 492 reached 493 494 Level: beginner 495 496 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 497 498 M*/ 499 500 /*MC 501 KSP_CONVERGED_ITS - Used by the KSPPREONLY solver after the single iteration of 502 the preconditioner is applied. Also used when the KSPConvergedSkip() convergence 503 test routine is set in KSP. 504 505 Level: beginner 506 507 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 508 509 M*/ 510 511 /*MC 512 KSP_DIVERGED_BREAKDOWN - A breakdown in the Krylov method was detected so the 513 method could not continue to enlarge the Krylov space. Could be due to a singlular matrix or 514 preconditioner. 515 516 Level: beginner 517 518 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 519 520 M*/ 521 522 /*MC 523 KSP_DIVERGED_BREAKDOWN_BICG - A breakdown in the KSPBICG method was detected so the 524 method could not continue to enlarge the Krylov space. 525 526 Level: beginner 527 528 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 529 530 M*/ 531 532 /*MC 533 KSP_DIVERGED_NONSYMMETRIC - It appears the operator or preconditioner is not 534 symmetric and this Krylov method (KSPCG, KSPMINRES, KSPCR) requires symmetry 535 536 Level: beginner 537 538 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 539 540 M*/ 541 542 /*MC 543 KSP_DIVERGED_INDEFINITE_PC - It appears the preconditioner is indefinite (has both 544 positive and negative eigenvalues) and this Krylov method (KSPCG) requires it to 545 be positive definite 546 547 Level: beginner 548 549 Notes: This can happen with the PCICC preconditioner, use -pc_factor_shift_positive_definite to force 550 the PCICC preconditioner to generate a positive definite preconditioner 551 552 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 553 554 M*/ 555 556 /*MC 557 KSP_DIVERGED_PCSETUP_FAILED - It was not possible to build the requested preconditioner. This is usually due to a 558 zero pivot in a factorization. It can also result from a failure in a subpreconditioner inside a nested preconditioner 559 such as PCFIELDSPLIT. 560 561 Level: beginner 562 563 Notes: Run with -ksp_error_if_not_converged to stop the program when the error is detected and print an error message with details. 564 565 566 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 567 568 M*/ 569 570 /*MC 571 KSP_CONVERGED_ITERATING - This flag is returned if you call KSPGetConvergedReason() 572 while the KSPSolve() is still running. 573 574 Level: beginner 575 576 .seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances() 577 578 M*/ 579 580 PETSC_EXTERN PetscErrorCode KSPSetConvergenceTest(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,KSPConvergedReason*,void*),void*,PetscErrorCode (*)(void*)); 581 PETSC_EXTERN PetscErrorCode KSPGetConvergenceContext(KSP,void**); 582 PETSC_EXTERN PetscErrorCode KSPConvergedDefault(KSP,PetscInt,PetscReal,KSPConvergedReason*,void*); 583 PETSC_EXTERN PetscErrorCode KSPConvergedLSQR(KSP,PetscInt,PetscReal,KSPConvergedReason*,void*); 584 PETSC_EXTERN PetscErrorCode KSPConvergedDefaultDestroy(void*); 585 PETSC_EXTERN PetscErrorCode KSPConvergedDefaultCreate(void**); 586 PETSC_EXTERN PetscErrorCode KSPConvergedDefaultSetUIRNorm(KSP); 587 PETSC_EXTERN PetscErrorCode KSPConvergedDefaultSetUMIRNorm(KSP); 588 PETSC_EXTERN PetscErrorCode KSPConvergedSkip(KSP,PetscInt,PetscReal,KSPConvergedReason*,void*); 589 PETSC_EXTERN PetscErrorCode KSPGetConvergedReason(KSP,KSPConvergedReason*); 590 591 PETSC_DEPRECATED("Use KSPConvergedDefault()") PETSC_STATIC_INLINE void KSPDefaultConverged(void) { /* never called */ } 592 #define KSPDefaultConverged (KSPDefaultConverged, KSPConvergedDefault) 593 PETSC_DEPRECATED("Use KSPConvergedDefaultDestroy()") PETSC_STATIC_INLINE void KSPDefaultConvergedDestroy(void) { /* never called */ } 594 #define KSPDefaultConvergedDestroy (KSPDefaultConvergedDestroy, KSPConvergedDefaultDestroy) 595 PETSC_DEPRECATED("Use KSPConvergedDefaultCreate()") PETSC_STATIC_INLINE void KSPDefaultConvergedCreate(void) { /* never called */ } 596 #define KSPDefaultConvergedCreate (KSPDefaultConvergedCreate, KSPConvergedDefaultCreate) 597 PETSC_DEPRECATED("Use KSPConvergedDefaultSetUIRNorm()") PETSC_STATIC_INLINE void KSPDefaultConvergedSetUIRNorm(void) { /* never called */ } 598 #define KSPDefaultConvergedSetUIRNorm (KSPDefaultConvergedSetUIRNorm, KSPConvergedDefaultSetUIRNorm) 599 PETSC_DEPRECATED("Use KSPConvergedDefaultSetUMIRNorm()") PETSC_STATIC_INLINE void KSPDefaultConvergedSetUMIRNorm(void) { /* never called */ } 600 #define KSPDefaultConvergedSetUMIRNorm (KSPDefaultConvergedSetUMIRNorm, KSPConvergedDefaultSetUMIRNorm) 601 PETSC_DEPRECATED("Use KSPConvergedSkip()") PETSC_STATIC_INLINE void KSPSkipConverged(void) { /* never called */ } 602 #define KSPSkipConverged (KSPSkipConverged, KSPConvergedSkip) 603 604 PETSC_EXTERN PetscErrorCode KSPComputeExplicitOperator(KSP,Mat*); 605 606 /*E 607 KSPCGType - Determines what type of CG to use 608 609 Level: beginner 610 611 .seealso: KSPCGSetType() 612 E*/ 613 typedef enum {KSP_CG_SYMMETRIC=0,KSP_CG_HERMITIAN=1} KSPCGType; 614 PETSC_EXTERN const char *const KSPCGTypes[]; 615 616 PETSC_EXTERN PetscErrorCode KSPCGSetType(KSP,KSPCGType); 617 PETSC_EXTERN PetscErrorCode KSPCGUseSingleReduction(KSP,PetscBool ); 618 619 PETSC_EXTERN PetscErrorCode KSPCGSetRadius(KSP,PetscReal); 620 PETSC_EXTERN PetscErrorCode KSPCGGetNormD(KSP,PetscReal*); 621 PETSC_EXTERN PetscErrorCode KSPCGGetObjFcn(KSP,PetscReal*); 622 623 PETSC_EXTERN PetscErrorCode KSPCGGLTRGetMinEig(KSP,PetscReal*); 624 PETSC_EXTERN PetscErrorCode KSPCGGLTRGetLambda(KSP,PetscReal*); 625 626 PETSC_EXTERN PetscErrorCode KSPPythonSetType(KSP,const char[]); 627 628 PETSC_EXTERN PetscErrorCode PCPreSolve(PC,KSP); 629 PETSC_EXTERN PetscErrorCode PCPostSolve(PC,KSP); 630 631 #include <petscdrawtypes.h> 632 PETSC_EXTERN PetscErrorCode KSPMonitorLGResidualNormCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*); 633 PETSC_EXTERN PetscErrorCode KSPMonitorLGResidualNorm(KSP,PetscInt,PetscReal,void*); 634 PETSC_EXTERN PetscErrorCode KSPMonitorLGTrueResidualNormCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*); 635 PETSC_EXTERN PetscErrorCode KSPMonitorLGTrueResidualNorm(KSP,PetscInt,PetscReal,void*); 636 PETSC_EXTERN PetscErrorCode KSPMonitorLGRange(KSP,PetscInt,PetscReal,void*); 637 638 PETSC_EXTERN PetscErrorCode PCShellSetPreSolve(PC,PetscErrorCode (*)(PC,KSP,Vec,Vec)); 639 PETSC_EXTERN PetscErrorCode PCShellSetPostSolve(PC,PetscErrorCode (*)(PC,KSP,Vec,Vec)); 640 641 /*S 642 KSPGuess - Abstract PETSc object that manages all initial guess methods in Krylov methods. 643 644 Level: beginner 645 646 Concepts: Krylov methods 647 648 .seealso: KSPCreate(), KSPSetGuessType(), KSPGuessType 649 S*/ 650 typedef struct _p_KSPGuess* KSPGuess; 651 /*J 652 KSPGuessType - String with the name of a PETSc initial guess for Krylov methods. 653 654 Level: beginner 655 656 .seealso: KSPGuess 657 J*/ 658 typedef const char* KSPGuessType; 659 #define KSPGUESSFISCHER "fischer" 660 #define KSPGUESSPOD "pod" 661 PETSC_EXTERN PetscErrorCode KSPSetGuess(KSP,KSPGuess); 662 PETSC_EXTERN PetscErrorCode KSPGetGuess(KSP,KSPGuess*); 663 PETSC_EXTERN PetscErrorCode KSPGuessView(KSPGuess,PetscViewer); 664 PETSC_EXTERN PetscErrorCode KSPGuessDestroy(KSPGuess*); 665 PETSC_EXTERN PetscErrorCode KSPGuessCreate(MPI_Comm,KSPGuess*); 666 PETSC_EXTERN PetscErrorCode KSPGuessSetType(KSPGuess,KSPGuessType); 667 PETSC_EXTERN PetscErrorCode KSPGuessGetType(KSPGuess,KSPGuessType*); 668 PETSC_EXTERN PetscErrorCode KSPGuessSetUp(KSPGuess); 669 PETSC_EXTERN PetscErrorCode KSPGuessUpdate(KSPGuess,Vec,Vec); 670 PETSC_EXTERN PetscErrorCode KSPGuessFormGuess(KSPGuess,Vec,Vec); 671 PETSC_EXTERN PetscErrorCode KSPGuessSetFromOptions(KSPGuess); 672 PETSC_EXTERN PetscErrorCode KSPGuessFischerSetModel(KSPGuess,PetscInt,PetscInt); 673 PETSC_EXTERN PetscErrorCode KSPSetUseFischerGuess(KSP,PetscInt,PetscInt); 674 PETSC_EXTERN PetscErrorCode KSPSetInitialGuessKnoll(KSP,PetscBool); 675 PETSC_EXTERN PetscErrorCode KSPGetInitialGuessKnoll(KSP,PetscBool*); 676 677 /*E 678 MatSchurComplementAinvType - Determines how to approximate the inverse of the (0,0) block in Schur complement preconditioning matrix assembly routines 679 680 Level: intermediate 681 682 .seealso: MatSchurComplementGetAinvType(), MatSchurComplementSetAinvType(), MatSchurComplementGetPmat(), MatGetSchurComplement(), MatCreateSchurComplementPmat() 683 E*/ 684 typedef enum {MAT_SCHUR_COMPLEMENT_AINV_DIAG, MAT_SCHUR_COMPLEMENT_AINV_LUMP, MAT_SCHUR_COMPLEMENT_AINV_BLOCK_DIAG} MatSchurComplementAinvType; 685 PETSC_EXTERN const char *const MatSchurComplementAinvTypes[]; 686 687 PETSC_EXTERN PetscErrorCode MatCreateSchurComplement(Mat,Mat,Mat,Mat,Mat,Mat*); 688 PETSC_EXTERN PetscErrorCode MatSchurComplementGetKSP(Mat,KSP*); 689 PETSC_EXTERN PetscErrorCode MatSchurComplementSetKSP(Mat,KSP); 690 PETSC_EXTERN PetscErrorCode MatSchurComplementSetSubMatrices(Mat,Mat,Mat,Mat,Mat,Mat); 691 PETSC_EXTERN PetscErrorCode MatSchurComplementUpdateSubMatrices(Mat,Mat,Mat,Mat,Mat,Mat); 692 PETSC_EXTERN PetscErrorCode MatSchurComplementGetSubMatrices(Mat,Mat*,Mat*,Mat*,Mat*,Mat*); 693 PETSC_EXTERN PetscErrorCode MatSchurComplementSetAinvType(Mat,MatSchurComplementAinvType); 694 PETSC_EXTERN PetscErrorCode MatSchurComplementGetAinvType(Mat,MatSchurComplementAinvType*); 695 PETSC_EXTERN PetscErrorCode MatSchurComplementGetPmat(Mat,MatReuse,Mat*); 696 PETSC_EXTERN PetscErrorCode MatSchurComplementComputeExplicitOperator(Mat,Mat*); 697 PETSC_EXTERN PetscErrorCode MatGetSchurComplement(Mat,IS,IS,IS,IS,MatReuse,Mat*,MatSchurComplementAinvType,MatReuse,Mat*); 698 PETSC_EXTERN PetscErrorCode MatCreateSchurComplementPmat(Mat,Mat,Mat,Mat,MatSchurComplementAinvType,MatReuse,Mat*); 699 700 PETSC_EXTERN PetscErrorCode KSPSetDM(KSP,DM); 701 PETSC_EXTERN PetscErrorCode KSPSetDMActive(KSP,PetscBool ); 702 PETSC_EXTERN PetscErrorCode KSPGetDM(KSP,DM*); 703 PETSC_EXTERN PetscErrorCode KSPSetApplicationContext(KSP,void*); 704 PETSC_EXTERN PetscErrorCode KSPGetApplicationContext(KSP,void*); 705 PETSC_EXTERN PetscErrorCode KSPSetComputeRHS(KSP,PetscErrorCode (*func)(KSP,Vec,void*),void*); 706 PETSC_EXTERN PetscErrorCode KSPSetComputeOperators(KSP,PetscErrorCode(*)(KSP,Mat,Mat,void*),void*); 707 PETSC_EXTERN PetscErrorCode KSPSetComputeInitialGuess(KSP,PetscErrorCode(*)(KSP,Vec,void*),void*); 708 PETSC_EXTERN PetscErrorCode DMKSPSetComputeOperators(DM,PetscErrorCode(*)(KSP,Mat,Mat,void*),void*); 709 PETSC_EXTERN PetscErrorCode DMKSPGetComputeOperators(DM,PetscErrorCode(**)(KSP,Mat,Mat,void*),void*); 710 PETSC_EXTERN PetscErrorCode DMKSPSetComputeRHS(DM,PetscErrorCode(*)(KSP,Vec,void*),void*); 711 PETSC_EXTERN PetscErrorCode DMKSPGetComputeRHS(DM,PetscErrorCode(**)(KSP,Vec,void*),void*); 712 PETSC_EXTERN PetscErrorCode DMKSPSetComputeInitialGuess(DM,PetscErrorCode(*)(KSP,Vec,void*),void*); 713 PETSC_EXTERN PetscErrorCode DMKSPGetComputeInitialGuess(DM,PetscErrorCode(**)(KSP,Vec,void*),void*); 714 715 PETSC_EXTERN PetscErrorCode DMGlobalToLocalSolve(DM,Vec,Vec); 716 PETSC_EXTERN PetscErrorCode DMProjectField(DM, PetscReal, Vec, 717 void (**)(PetscInt, PetscInt, PetscInt, 718 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 719 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 720 PetscReal, const PetscReal [], PetscInt, const PetscScalar[], PetscScalar []), InsertMode, Vec); 721 #endif 722