/usr/lib/petscdir/3.7.7/x86_64-linux-gnu-complex/include/petscksp.h is in libpetsc-complex-3.7.7-dev 3.7.7+dfsg1-2build5.
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Defines the interface functions for the Krylov subspace accelerators.
*/
#ifndef __PETSCKSP_H
#define __PETSCKSP_H
#include <petscpc.h>
PETSC_EXTERN PetscErrorCode KSPInitializePackage(void);
/*S
KSP - Abstract PETSc object that manages all Krylov methods. This is the object that manages the
linear solves in PETSc (even those such as direct solvers that do no use Krylov accelerators).
Level: beginner
Concepts: Krylov methods
Notes: When a direct solver is used but no Krylov solver is used the KSP object is still used by with a
KSPType of KSPPREONLY (meaning application of the preconditioner is only used as the linear solver).
.seealso: KSPCreate(), KSPSetType(), KSPType, SNES, TS, PC, KSP, KSPDestroy()
S*/
typedef struct _p_KSP* KSP;
/*J
KSPType - String with the name of a PETSc Krylov method.
Level: beginner
.seealso: KSPSetType(), KSP, KSPRegister(), KSPCreate(), KSPSetFromOptions()
J*/
typedef const char* KSPType;
#define KSPRICHARDSON "richardson"
#define KSPCHEBYSHEV "chebyshev"
#define KSPCG "cg"
#define KSPGROPPCG "groppcg"
#define KSPPIPECG "pipecg"
#define KSPPIPECGRR "pipecgrr"
#define KSPCGNE "cgne"
#define KSPNASH "nash"
#define KSPSTCG "stcg"
#define KSPGLTR "gltr"
#define KSPFCG "fcg"
#define KSPPIPEFCG "pipefcg"
#define KSPGMRES "gmres"
#define KSPPIPEFGMRES "pipefgmres"
#define KSPFGMRES "fgmres"
#define KSPLGMRES "lgmres"
#define KSPDGMRES "dgmres"
#define KSPPGMRES "pgmres"
#define KSPTCQMR "tcqmr"
#define KSPBCGS "bcgs"
#define KSPIBCGS "ibcgs"
#define KSPFBCGS "fbcgs"
#define KSPFBCGSR "fbcgsr"
#define KSPBCGSL "bcgsl"
#define KSPCGS "cgs"
#define KSPTFQMR "tfqmr"
#define KSPCR "cr"
#define KSPPIPECR "pipecr"
#define KSPLSQR "lsqr"
#define KSPPREONLY "preonly"
#define KSPQCG "qcg"
#define KSPBICG "bicg"
#define KSPMINRES "minres"
#define KSPSYMMLQ "symmlq"
#define KSPLCD "lcd"
#define KSPPYTHON "python"
#define KSPGCR "gcr"
#define KSPPIPEGCR "pipegcr"
#define KSPTSIRM "tsirm"
#define KSPCGLS "cgls"
/* Logging support */
PETSC_EXTERN PetscClassId KSP_CLASSID;
PETSC_EXTERN PetscClassId DMKSP_CLASSID;
PETSC_EXTERN PetscErrorCode KSPCreate(MPI_Comm,KSP *);
PETSC_EXTERN PetscErrorCode KSPSetType(KSP,KSPType);
PETSC_EXTERN PetscErrorCode KSPGetType(KSP,KSPType *);
PETSC_EXTERN PetscErrorCode KSPSetUp(KSP);
PETSC_EXTERN PetscErrorCode KSPSetUpOnBlocks(KSP);
PETSC_EXTERN PetscErrorCode KSPSolve(KSP,Vec,Vec);
PETSC_EXTERN PetscErrorCode KSPSolveTranspose(KSP,Vec,Vec);
PETSC_EXTERN PetscErrorCode KSPReset(KSP);
PETSC_EXTERN PetscErrorCode KSPDestroy(KSP*);
PETSC_EXTERN PetscErrorCode KSPSetReusePreconditioner(KSP,PetscBool);
PETSC_EXTERN PetscErrorCode KSPSetSkipPCSetFromOptions(KSP,PetscBool);
PETSC_EXTERN PetscFunctionList KSPList;
PETSC_EXTERN PetscErrorCode KSPRegister(const char[],PetscErrorCode (*)(KSP));
PETSC_EXTERN PetscErrorCode KSPSetPCSide(KSP,PCSide);
PETSC_EXTERN PetscErrorCode KSPGetPCSide(KSP,PCSide*);
PETSC_EXTERN PetscErrorCode KSPSetTolerances(KSP,PetscReal,PetscReal,PetscReal,PetscInt);
PETSC_EXTERN PetscErrorCode KSPGetTolerances(KSP,PetscReal*,PetscReal*,PetscReal*,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPSetInitialGuessNonzero(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetInitialGuessNonzero(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetInitialGuessKnoll(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetInitialGuessKnoll(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetErrorIfNotConverged(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetErrorIfNotConverged(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetComputeEigenvalues(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPSetComputeRitz(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetComputeEigenvalues(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetComputeSingularValues(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetComputeSingularValues(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPGetRhs(KSP,Vec *);
PETSC_EXTERN PetscErrorCode KSPGetSolution(KSP,Vec *);
PETSC_EXTERN PetscErrorCode KSPGetResidualNorm(KSP,PetscReal*);
PETSC_EXTERN PetscErrorCode KSPGetIterationNumber(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPGetTotalIterations(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPCreateVecs(KSP,PetscInt,Vec**,PetscInt,Vec**);
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);}
PETSC_EXTERN PetscErrorCode KSPSetPreSolve(KSP,PetscErrorCode (*)(KSP,Vec,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode KSPSetPostSolve(KSP,PetscErrorCode (*)(KSP,Vec,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode KSPSetPC(KSP,PC);
PETSC_EXTERN PetscErrorCode KSPGetPC(KSP,PC*);
PETSC_EXTERN PetscErrorCode KSPMonitor(KSP,PetscInt,PetscReal);
PETSC_EXTERN PetscErrorCode KSPMonitorSet(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,void*),void *,PetscErrorCode (*)(void**));
PETSC_EXTERN PetscErrorCode KSPMonitorCancel(KSP);
PETSC_EXTERN PetscErrorCode KSPGetMonitorContext(KSP,void **);
PETSC_EXTERN PetscErrorCode KSPGetResidualHistory(KSP,PetscReal*[],PetscInt *);
PETSC_EXTERN PetscErrorCode KSPSetResidualHistory(KSP,PetscReal[],PetscInt,PetscBool );
PETSC_EXTERN PetscErrorCode KSPBuildSolutionDefault(KSP,Vec,Vec*);
PETSC_EXTERN PetscErrorCode KSPBuildResidualDefault(KSP,Vec,Vec,Vec *);
PETSC_EXTERN PetscErrorCode KSPDestroyDefault(KSP);
PETSC_EXTERN PetscErrorCode KSPSetWorkVecs(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode PCKSPGetKSP(PC,KSP*);
PETSC_EXTERN PetscErrorCode PCBJacobiGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]);
PETSC_EXTERN PetscErrorCode PCASMGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]);
PETSC_EXTERN PetscErrorCode PCGASMGetSubKSP(PC,PetscInt*,PetscInt*,KSP*[]);
PETSC_EXTERN PetscErrorCode PCFieldSplitGetSubKSP(PC,PetscInt*,KSP*[]);
PETSC_EXTERN PetscErrorCode PCMGGetSmoother(PC,PetscInt,KSP*);
PETSC_EXTERN PetscErrorCode PCMGGetSmootherDown(PC,PetscInt,KSP*);
PETSC_EXTERN PetscErrorCode PCMGGetSmootherUp(PC,PetscInt,KSP*);
PETSC_EXTERN PetscErrorCode PCMGGetCoarseSolve(PC,KSP*);
PETSC_EXTERN PetscErrorCode PCGalerkinGetKSP(PC,KSP *);
PETSC_EXTERN PetscErrorCode KSPBuildSolution(KSP,Vec,Vec *);
PETSC_EXTERN PetscErrorCode KSPBuildResidual(KSP,Vec,Vec,Vec *);
PETSC_EXTERN PetscErrorCode KSPRichardsonSetScale(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPRichardsonSetSelfScale(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPChebyshevSetEigenvalues(KSP,PetscReal,PetscReal);
PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigSet(KSP,PetscReal,PetscReal,PetscReal,PetscReal);
PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigSetUseRandom(KSP,PetscBool);
PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigSetRandom(KSP,PetscRandom);
PETSC_EXTERN PetscErrorCode KSPChebyshevEstEigGetKSP(KSP,KSP*);
PETSC_EXTERN PetscErrorCode KSPComputeExtremeSingularValues(KSP,PetscReal*,PetscReal*);
PETSC_EXTERN PetscErrorCode KSPComputeEigenvalues(KSP,PetscInt,PetscReal[],PetscReal[],PetscInt *);
PETSC_EXTERN PetscErrorCode KSPComputeEigenvaluesExplicitly(KSP,PetscInt,PetscReal[],PetscReal[]);
PETSC_EXTERN PetscErrorCode KSPComputeRitz(KSP,PetscBool,PetscBool,PetscInt *,Vec[],PetscReal[],PetscReal[]);
/*E
KSPFCDTruncationType - Define how stored directions are used to orthogonalize in flexible conjugate directions (FCD) methods
KSP_FCD_TRUNC_TYPE_STANDARD uses all (up to mmax) stored directions
KSP_FCD_TRUNC_TYPE_NOTAY uses the last max(1,mod(i,mmax)) stored directions at iteration i=0,1..
Level: intermediate
.seealso : KSPFCG,KSPPIPEFCG,KSPPIPEGCR,KSPFCGSetTruncationType(),KSPFCGGetTruncationType()
E*/
typedef enum {KSP_FCD_TRUNC_TYPE_STANDARD,KSP_FCD_TRUNC_TYPE_NOTAY} KSPFCDTruncationType;
PETSC_EXTERN const char *const KSPFCDTruncationTypes[];
PETSC_EXTERN PetscErrorCode KSPFCGSetMmax(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPFCGGetMmax(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPFCGSetNprealloc(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPFCGGetNprealloc(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPFCGSetTruncationType(KSP,KSPFCDTruncationType);
PETSC_EXTERN PetscErrorCode KSPFCGGetTruncationType(KSP,KSPFCDTruncationType*);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetMmax(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetMmax(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetNprealloc(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetNprealloc(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGSetTruncationType(KSP,KSPFCDTruncationType);
PETSC_EXTERN PetscErrorCode KSPPIPEFCGGetTruncationType(KSP,KSPFCDTruncationType*);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetMmax(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetMmax(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetNprealloc(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetNprealloc(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetTruncationType(KSP,KSPFCDTruncationType);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetTruncationType(KSP,KSPFCDTruncationType*);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRSetUnrollW(KSP,PetscBool);
PETSC_EXTERN PetscErrorCode KSPPIPEGCRGetUnrollW(KSP,PetscBool*);
PETSC_EXTERN PetscErrorCode KSPGMRESSetRestart(KSP, PetscInt);
PETSC_EXTERN PetscErrorCode KSPGMRESGetRestart(KSP, PetscInt*);
PETSC_EXTERN PetscErrorCode KSPGMRESSetHapTol(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPGMRESSetPreAllocateVectors(KSP);
PETSC_EXTERN PetscErrorCode KSPGMRESSetOrthogonalization(KSP,PetscErrorCode (*)(KSP,PetscInt));
PETSC_EXTERN PetscErrorCode KSPGMRESGetOrthogonalization(KSP,PetscErrorCode (**)(KSP,PetscInt));
PETSC_EXTERN PetscErrorCode KSPGMRESModifiedGramSchmidtOrthogonalization(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPGMRESClassicalGramSchmidtOrthogonalization(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPLGMRESSetAugDim(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPLGMRESSetConstant(KSP);
PETSC_EXTERN PetscErrorCode KSPPIPEFGMRESSetShift(KSP,PetscScalar);
PETSC_EXTERN PetscErrorCode KSPGCRSetRestart(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPGCRGetRestart(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPGCRSetModifyPC(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,void*),void*,PetscErrorCode(*)(void*));
/*E
KSPGMRESCGSRefinementType - How the classical (unmodified) Gram-Schmidt is performed.
Level: advanced
.seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(),
KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSPGMRESModifiedGramSchmidtOrthogonalization()
E*/
typedef enum {KSP_GMRES_CGS_REFINE_NEVER, KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS} KSPGMRESCGSRefinementType;
PETSC_EXTERN const char *const KSPGMRESCGSRefinementTypes[];
/*MC
KSP_GMRES_CGS_REFINE_NEVER - Do the classical (unmodified) Gram-Schmidt process
Level: advanced
Note: Possible unstable, but the fastest to compute
.seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(),
KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS,
KSPGMRESModifiedGramSchmidtOrthogonalization()
M*/
/*MC
KSP_GMRES_CGS_REFINE_IFNEEDED - Do the classical (unmodified) Gram-Schmidt process and one step of
iterative refinement if an estimate of the orthogonality of the resulting vectors indicates
poor orthogonality.
Level: advanced
Note: This is slower than KSP_GMRES_CGS_REFINE_NEVER because it requires an extra norm computation to
estimate the orthogonality but is more stable.
.seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(),
KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_NEVER, KSP_GMRES_CGS_REFINE_ALWAYS,
KSPGMRESModifiedGramSchmidtOrthogonalization()
M*/
/*MC
KSP_GMRES_CGS_REFINE_NEVER - Do two steps of the classical (unmodified) Gram-Schmidt process.
Level: advanced
Note: This is roughly twice the cost of KSP_GMRES_CGS_REFINE_NEVER because it performs the process twice
but it saves the extra norm calculation needed by KSP_GMRES_CGS_REFINE_IFNEEDED.
You should only use this if you absolutely know that the iterative refinement is needed.
.seealso: KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetOrthogonalization(), KSPGMRESGetOrthogonalization(),
KSPGMRESSetCGSRefinementType(), KSPGMRESGetCGSRefinementType(), KSP_GMRES_CGS_REFINE_IFNEEDED, KSP_GMRES_CGS_REFINE_ALWAYS,
KSPGMRESModifiedGramSchmidtOrthogonalization()
M*/
PETSC_EXTERN PetscErrorCode KSPGMRESSetCGSRefinementType(KSP,KSPGMRESCGSRefinementType);
PETSC_EXTERN PetscErrorCode KSPGMRESGetCGSRefinementType(KSP,KSPGMRESCGSRefinementType*);
PETSC_EXTERN PetscErrorCode KSPFGMRESModifyPCNoChange(KSP,PetscInt,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode KSPFGMRESModifyPCKSP(KSP,PetscInt,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode KSPFGMRESSetModifyPC(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscInt,PetscReal,void*),void*,PetscErrorCode(*)(void*));
PETSC_EXTERN PetscErrorCode KSPQCGSetTrustRegionRadius(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPQCGGetQuadratic(KSP,PetscReal*);
PETSC_EXTERN PetscErrorCode KSPQCGGetTrialStepNorm(KSP,PetscReal*);
PETSC_EXTERN PetscErrorCode KSPBCGSLSetXRes(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPBCGSLSetPol(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPBCGSLSetEll(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPBCGSLSetUsePseudoinverse(KSP,PetscBool);
PETSC_EXTERN PetscErrorCode KSPSetFromOptions(KSP);
PETSC_EXTERN PetscErrorCode KSPAddOptionsChecker(PetscErrorCode (*)(KSP));
PETSC_EXTERN PetscErrorCode KSPMonitorSingularValue(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorDefault(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPLSQRMonitorDefault(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorRange(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorDynamicTolerance(KSP ksp,PetscInt its,PetscReal fnorm,void *dummy);
PETSC_EXTERN PetscErrorCode KSPMonitorDynamicToleranceDestroy(void **dummy);
PETSC_EXTERN PetscErrorCode KSPMonitorTrueResidualNorm(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorTrueResidualMaxNorm(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorDefaultShort(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorSolution(KSP,PetscInt,PetscReal,PetscViewerAndFormat *);
PETSC_EXTERN PetscErrorCode KSPMonitorSAWs(KSP,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode KSPMonitorSAWsCreate(KSP,void**);
PETSC_EXTERN PetscErrorCode KSPMonitorSAWsDestroy(void**);
PETSC_EXTERN PetscErrorCode KSPGMRESMonitorKrylov(KSP,PetscInt,PetscReal,void *);
PETSC_EXTERN PetscErrorCode KSPMonitorSetFromOptions(KSP,const char[],const char[],const char [],PetscErrorCode (*)(KSP,PetscInt,PetscReal,PetscViewerAndFormat*));
PETSC_EXTERN PetscErrorCode KSPUnwindPreconditioner(KSP,Vec,Vec);
PETSC_EXTERN PetscErrorCode KSPInitialResidual(KSP,Vec,Vec,Vec,Vec,Vec);
PETSC_EXTERN PetscErrorCode KSPSetOperators(KSP,Mat,Mat);
PETSC_EXTERN PetscErrorCode KSPGetOperators(KSP,Mat*,Mat*);
PETSC_EXTERN PetscErrorCode KSPGetOperatorsSet(KSP,PetscBool *,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetOptionsPrefix(KSP,const char[]);
PETSC_EXTERN PetscErrorCode KSPAppendOptionsPrefix(KSP,const char[]);
PETSC_EXTERN PetscErrorCode KSPGetOptionsPrefix(KSP,const char*[]);
PETSC_EXTERN PetscErrorCode KSPSetTabLevel(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPGetTabLevel(KSP,PetscInt*);
PETSC_EXTERN PetscErrorCode KSPSetDiagonalScale(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetDiagonalScale(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPSetDiagonalScaleFix(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetDiagonalScaleFix(KSP,PetscBool *);
PETSC_EXTERN PetscErrorCode KSPView(KSP,PetscViewer);
PETSC_EXTERN PetscErrorCode KSPLoad(KSP,PetscViewer);
PETSC_STATIC_INLINE PetscErrorCode KSPViewFromOptions(KSP A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
PETSC_EXTERN PetscErrorCode KSPReasonView(KSP,PetscViewer);
PETSC_EXTERN PetscErrorCode KSPReasonViewFromOptions(KSP);
#define KSP_FILE_CLASSID 1211223
PETSC_EXTERN PetscErrorCode KSPLSQRSetStandardErrorVec(KSP,Vec);
PETSC_EXTERN PetscErrorCode KSPLSQRGetStandardErrorVec(KSP,Vec*);
PETSC_EXTERN PetscErrorCode PCRedundantGetKSP(PC,KSP*);
PETSC_EXTERN PetscErrorCode PCRedistributeGetKSP(PC,KSP*);
PETSC_EXTERN PetscErrorCode PCTelescopeGetKSP(PC,KSP*);
/*E
KSPNormType - Norm that is passed in the Krylov convergence
test routines.
Level: advanced
Each solver only supports a subset of these and some may support different ones
depending on left or right preconditioning, see KSPSetPCSide()
Notes: this must match petsc/finclude/petscksp.h
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPSetNormType(),
KSPSetConvergenceTest(), KSPSetPCSide()
E*/
typedef enum {KSP_NORM_DEFAULT = -1,KSP_NORM_NONE = 0,KSP_NORM_PRECONDITIONED = 1,KSP_NORM_UNPRECONDITIONED = 2,KSP_NORM_NATURAL = 3} KSPNormType;
#define KSP_NORM_MAX (KSP_NORM_NATURAL + 1)
PETSC_EXTERN const char *const*const KSPNormTypes;
/*MC
KSP_NORM_NONE - Do not compute a norm during the Krylov process. This will
possibly save some computation but means the convergence test cannot
be based on a norm of a residual etc.
Level: advanced
Note: Some Krylov methods need to compute a residual norm (such as GMRES) and then this option is ignored
.seealso: KSPNormType, KSPSetNormType(), KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL
M*/
/*MC
KSP_NORM_PRECONDITIONED - Compute the norm of the preconditioned residual B*(b - A*x), if left preconditioning, and pass that to the
convergence test routine.
Level: advanced
.seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL, KSPSetConvergenceTest()
M*/
/*MC
KSP_NORM_UNPRECONDITIONED - Compute the norm of the true residual (b - A*x) and pass that to the
convergence test routine.
Level: advanced
.seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_PRECONDITIONED, KSP_NORM_NATURAL, KSPSetConvergenceTest()
M*/
/*MC
KSP_NORM_NATURAL - Compute the 'natural norm' of residual sqrt((b - A*x)*B*(b - A*x)) and pass that to the
convergence test routine. This is only supported by KSPCG, KSPCR, KSPCGNE, KSPCGS, KSPFCG, KSPPIPEFCG, KSPPIPEGCR
Level: advanced
.seealso: KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSPSetConvergenceTest()
M*/
PETSC_EXTERN PetscErrorCode KSPSetNormType(KSP,KSPNormType);
PETSC_EXTERN PetscErrorCode KSPGetNormType(KSP,KSPNormType*);
PETSC_EXTERN PetscErrorCode KSPSetSupportedNorm(KSP ksp,KSPNormType,PCSide,PetscInt);
PETSC_EXTERN PetscErrorCode KSPSetCheckNormIteration(KSP,PetscInt);
PETSC_EXTERN PetscErrorCode KSPSetLagNorm(KSP,PetscBool);
/*E
KSPConvergedReason - reason a Krylov method was said to have converged or diverged
Level: beginner
Notes: See KSPGetConvergedReason() for explanation of each value
Developer notes: this must match petsc/finclude/petscksp.h
The string versions of these are KSPConvergedReasons; if you change
any of the values here also change them that array of names.
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPSetTolerances()
E*/
typedef enum {/* converged */
KSP_CONVERGED_RTOL_NORMAL = 1,
KSP_CONVERGED_ATOL_NORMAL = 9,
KSP_CONVERGED_RTOL = 2,
KSP_CONVERGED_ATOL = 3,
KSP_CONVERGED_ITS = 4,
KSP_CONVERGED_CG_NEG_CURVE = 5,
KSP_CONVERGED_CG_CONSTRAINED = 6,
KSP_CONVERGED_STEP_LENGTH = 7,
KSP_CONVERGED_HAPPY_BREAKDOWN = 8,
/* diverged */
KSP_DIVERGED_NULL = -2,
KSP_DIVERGED_ITS = -3,
KSP_DIVERGED_DTOL = -4,
KSP_DIVERGED_BREAKDOWN = -5,
KSP_DIVERGED_BREAKDOWN_BICG = -6,
KSP_DIVERGED_NONSYMMETRIC = -7,
KSP_DIVERGED_INDEFINITE_PC = -8,
KSP_DIVERGED_NANORINF = -9,
KSP_DIVERGED_INDEFINITE_MAT = -10,
KSP_DIVERGED_PCSETUP_FAILED = -11,
KSP_CONVERGED_ITERATING = 0} KSPConvergedReason;
PETSC_EXTERN const char *const*KSPConvergedReasons;
/*MC
KSP_CONVERGED_RTOL - norm(r) <= rtol*norm(b)
Level: beginner
See KSPNormType and KSPSetNormType() for possible norms that may be used. By default
for left preconditioning it is the 2-norm of the preconditioned residual, and the
2-norm of the residual for right preconditioning
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_CONVERGED_ATOL - norm(r) <= atol
Level: beginner
See KSPNormType and KSPSetNormType() for possible norms that may be used. By default
for left preconditioning it is the 2-norm of the preconditioned residual, and the
2-norm of the residual for right preconditioning
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_DTOL - norm(r) >= dtol*norm(b)
Level: beginner
See KSPNormType and KSPSetNormType() for possible norms that may be used. By default
for left preconditioning it is the 2-norm of the preconditioned residual, and the
2-norm of the residual for right preconditioning
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_ITS - Ran out of iterations before any convergence criteria was
reached
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_CONVERGED_ITS - Used by the KSPPREONLY solver after the single iteration of
the preconditioner is applied. Also used when the KSPConvergedSkip() convergence
test routine is set in KSP.
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_BREAKDOWN - A breakdown in the Krylov method was detected so the
method could not continue to enlarge the Krylov space. Could be due to a singlular matrix or
preconditioner.
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_BREAKDOWN_BICG - A breakdown in the KSPBICG method was detected so the
method could not continue to enlarge the Krylov space.
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_NONSYMMETRIC - It appears the operator or preconditioner is not
symmetric and this Krylov method (KSPCG, KSPMINRES, KSPCR) requires symmetry
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_INDEFINITE_PC - It appears the preconditioner is indefinite (has both
positive and negative eigenvalues) and this Krylov method (KSPCG) requires it to
be positive definite
Level: beginner
Notes: This can happen with the PCICC preconditioner, use -pc_factor_shift_positive_definite to force
the PCICC preconditioner to generate a positive definite preconditioner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_DIVERGED_PCSETUP_FAILED - It was not possible to build the requested preconditioner. This is usually due to a
zero pivot in a factorization. It can also result from a failure in a subpreconditioner inside a nested preconditioner
such as PCFIELDSPLIT.
Level: beginner
Notes: Run with -ksp_error_if_not_converged to stop the program when the error is detected and print an error message with details.
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
/*MC
KSP_CONVERGED_ITERATING - This flag is returned if you call KSPGetConvergedReason()
while the KSPSolve() is still running.
Level: beginner
.seealso: KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
M*/
PETSC_EXTERN PetscErrorCode KSPSetConvergenceTest(KSP,PetscErrorCode (*)(KSP,PetscInt,PetscReal,KSPConvergedReason*,void*),void *,PetscErrorCode (*)(void*));
PETSC_EXTERN PetscErrorCode KSPGetConvergenceContext(KSP,void **);
PETSC_EXTERN PetscErrorCode KSPConvergedDefault(KSP,PetscInt,PetscReal,KSPConvergedReason*,void *);
PETSC_EXTERN PetscErrorCode KSPConvergedLSQR(KSP,PetscInt,PetscReal,KSPConvergedReason*,void *);
PETSC_EXTERN PetscErrorCode KSPConvergedDefaultDestroy(void *);
PETSC_EXTERN PetscErrorCode KSPConvergedDefaultCreate(void **);
PETSC_EXTERN PetscErrorCode KSPConvergedDefaultSetUIRNorm(KSP);
PETSC_EXTERN PetscErrorCode KSPConvergedDefaultSetUMIRNorm(KSP);
PETSC_EXTERN PetscErrorCode KSPConvergedSkip(KSP,PetscInt,PetscReal,KSPConvergedReason*,void *);
PETSC_EXTERN PetscErrorCode KSPGetConvergedReason(KSP,KSPConvergedReason *);
PETSC_DEPRECATED("Use KSPConvergedDefault()") PETSC_STATIC_INLINE void KSPDefaultConverged(void) { /* never called */ }
#define KSPDefaultConverged (KSPDefaultConverged, KSPConvergedDefault)
PETSC_DEPRECATED("Use KSPConvergedDefaultDestroy()") PETSC_STATIC_INLINE void KSPDefaultConvergedDestroy(void) { /* never called */ }
#define KSPDefaultConvergedDestroy (KSPDefaultConvergedDestroy, KSPConvergedDefaultDestroy)
PETSC_DEPRECATED("Use KSPConvergedDefaultCreate()") PETSC_STATIC_INLINE void KSPDefaultConvergedCreate(void) { /* never called */ }
#define KSPDefaultConvergedCreate (KSPDefaultConvergedCreate, KSPConvergedDefaultCreate)
PETSC_DEPRECATED("Use KSPConvergedDefaultSetUIRNorm()") PETSC_STATIC_INLINE void KSPDefaultConvergedSetUIRNorm(void) { /* never called */ }
#define KSPDefaultConvergedSetUIRNorm (KSPDefaultConvergedSetUIRNorm, KSPConvergedDefaultSetUIRNorm)
PETSC_DEPRECATED("Use KSPConvergedDefaultSetUMIRNorm()") PETSC_STATIC_INLINE void KSPDefaultConvergedSetUMIRNorm(void) { /* never called */ }
#define KSPDefaultConvergedSetUMIRNorm (KSPDefaultConvergedSetUMIRNorm, KSPConvergedDefaultSetUMIRNorm)
PETSC_DEPRECATED("Use KSPConvergedSkip()") PETSC_STATIC_INLINE void KSPSkipConverged(void) { /* never called */ }
#define KSPSkipConverged (KSPSkipConverged, KSPConvergedSkip)
PETSC_EXTERN PetscErrorCode KSPComputeExplicitOperator(KSP,Mat *);
/*E
KSPCGType - Determines what type of CG to use
Level: beginner
.seealso: KSPCGSetType()
E*/
typedef enum {KSP_CG_SYMMETRIC=0,KSP_CG_HERMITIAN=1} KSPCGType;
PETSC_EXTERN const char *const KSPCGTypes[];
PETSC_EXTERN PetscErrorCode KSPCGSetType(KSP,KSPCGType);
PETSC_EXTERN PetscErrorCode KSPCGUseSingleReduction(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPNASHSetRadius(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPNASHGetNormD(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPNASHGetObjFcn(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPSTCGSetRadius(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPSTCGGetNormD(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPSTCGGetObjFcn(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPGLTRSetRadius(KSP,PetscReal);
PETSC_EXTERN PetscErrorCode KSPGLTRGetNormD(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPGLTRGetObjFcn(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPGLTRGetMinEig(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPGLTRGetLambda(KSP,PetscReal *);
PETSC_EXTERN PetscErrorCode KSPPythonSetType(KSP,const char[]);
PETSC_EXTERN PetscErrorCode PCPreSolve(PC,KSP);
PETSC_EXTERN PetscErrorCode PCPostSolve(PC,KSP);
#include <petscdrawtypes.h>
PETSC_EXTERN PetscErrorCode KSPMonitorLGResidualNormCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*);
PETSC_EXTERN PetscErrorCode KSPMonitorLGResidualNorm(KSP,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode KSPMonitorLGTrueResidualNormCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*);
PETSC_EXTERN PetscErrorCode KSPMonitorLGTrueResidualNorm(KSP,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode KSPMonitorLGRange(KSP,PetscInt,PetscReal,void*);
PETSC_EXTERN PetscErrorCode PCShellSetPreSolve(PC,PetscErrorCode (*)(PC,KSP,Vec,Vec));
PETSC_EXTERN PetscErrorCode PCShellSetPostSolve(PC,PetscErrorCode (*)(PC,KSP,Vec,Vec));
/* see src/ksp/ksp/interface/iguess.c */
typedef struct _p_KSPFischerGuess {PetscInt method,curl,maxl,refcnt;PetscBool monitor;Mat mat; KSP ksp;}* KSPFischerGuess;
PETSC_EXTERN PetscErrorCode KSPFischerGuessCreate(KSP,PetscInt,PetscInt,KSPFischerGuess*);
PETSC_EXTERN PetscErrorCode KSPFischerGuessDestroy(KSPFischerGuess*);
PETSC_EXTERN PetscErrorCode KSPFischerGuessReset(KSPFischerGuess);
PETSC_EXTERN PetscErrorCode KSPFischerGuessUpdate(KSPFischerGuess,Vec);
PETSC_EXTERN PetscErrorCode KSPFischerGuessFormGuess(KSPFischerGuess,Vec,Vec);
PETSC_EXTERN PetscErrorCode KSPFischerGuessSetFromOptions(KSPFischerGuess);
PETSC_EXTERN PetscErrorCode KSPSetUseFischerGuess(KSP,PetscInt,PetscInt);
PETSC_EXTERN PetscErrorCode KSPSetFischerGuess(KSP,KSPFischerGuess);
PETSC_EXTERN PetscErrorCode KSPGetFischerGuess(KSP,KSPFischerGuess*);
/*E
MatSchurComplementAinvType - Determines how to approximate the inverse of the (0,0) block in Schur complement preconditioning matrix assembly routines
Level: intermediate
.seealso: MatSchurComplementGetAinvType(), MatSchurComplementSetAinvType(), MatSchurComplementGetPmat(), MatGetSchurComplement(), MatCreateSchurComplementPmat()
E*/
typedef enum {MAT_SCHUR_COMPLEMENT_AINV_DIAG, MAT_SCHUR_COMPLEMENT_AINV_LUMP} MatSchurComplementAinvType;
PETSC_EXTERN const char *const MatSchurComplementAinvTypes[];
PETSC_EXTERN PetscErrorCode MatCreateSchurComplement(Mat,Mat,Mat,Mat,Mat,Mat*);
PETSC_EXTERN PetscErrorCode MatSchurComplementGetKSP(Mat,KSP*);
PETSC_EXTERN PetscErrorCode MatSchurComplementSetKSP(Mat,KSP);
PETSC_EXTERN PetscErrorCode MatSchurComplementSetSubMatrices(Mat,Mat,Mat,Mat,Mat,Mat);
PETSC_EXTERN PetscErrorCode MatSchurComplementUpdateSubMatrices(Mat,Mat,Mat,Mat,Mat,Mat);
PETSC_EXTERN PetscErrorCode MatSchurComplementGetSubMatrices(Mat,Mat*,Mat*,Mat*,Mat*,Mat*);
PETSC_EXTERN PetscErrorCode MatSchurComplementSetAinvType(Mat,MatSchurComplementAinvType);
PETSC_EXTERN PetscErrorCode MatSchurComplementGetAinvType(Mat,MatSchurComplementAinvType*);
PETSC_EXTERN PetscErrorCode MatSchurComplementGetPmat(Mat,MatReuse,Mat*);
PETSC_EXTERN PetscErrorCode MatSchurComplementComputeExplicitOperator(Mat,Mat*);
PETSC_EXTERN PetscErrorCode MatGetSchurComplement(Mat,IS,IS,IS,IS,MatReuse,Mat *,MatSchurComplementAinvType,MatReuse,Mat *);
PETSC_EXTERN PetscErrorCode MatCreateSchurComplementPmat(Mat,Mat,Mat,Mat,MatSchurComplementAinvType,MatReuse,Mat*);
PETSC_EXTERN PetscErrorCode KSPSetDM(KSP,DM);
PETSC_EXTERN PetscErrorCode KSPSetDMActive(KSP,PetscBool );
PETSC_EXTERN PetscErrorCode KSPGetDM(KSP,DM*);
PETSC_EXTERN PetscErrorCode KSPSetApplicationContext(KSP,void*);
PETSC_EXTERN PetscErrorCode KSPGetApplicationContext(KSP,void*);
PETSC_EXTERN PetscErrorCode KSPSetComputeRHS(KSP,PetscErrorCode (*func)(KSP,Vec,void*),void *);
PETSC_EXTERN PetscErrorCode KSPSetComputeOperators(KSP,PetscErrorCode(*)(KSP,Mat,Mat,void*),void*);
PETSC_EXTERN PetscErrorCode KSPSetComputeInitialGuess(KSP,PetscErrorCode(*)(KSP,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPSetComputeOperators(DM,PetscErrorCode(*)(KSP,Mat,Mat,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPGetComputeOperators(DM,PetscErrorCode(**)(KSP,Mat,Mat,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPSetComputeRHS(DM,PetscErrorCode(*)(KSP,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPGetComputeRHS(DM,PetscErrorCode(**)(KSP,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPSetComputeInitialGuess(DM,PetscErrorCode(*)(KSP,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode DMKSPGetComputeInitialGuess(DM,PetscErrorCode(**)(KSP,Vec,void*),void*);
PETSC_EXTERN PetscErrorCode DMGlobalToLocalSolve(DM,Vec,Vec);
PETSC_EXTERN PetscErrorCode DMProjectField(DM, Vec,
void (**)(PetscInt, PetscInt, PetscInt,
const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
PetscReal, const PetscReal [], PetscScalar []), InsertMode, Vec);
#endif
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