Actual source code: slepcst.h

slepc-3.12.2 2020-01-13
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  1: /*
  2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
  4:    Copyright (c) 2002-2019, Universitat Politecnica de Valencia, Spain

  6:    This file is part of SLEPc.
  7:    SLEPc is distributed under a 2-clause BSD license (see LICENSE).
  8:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  9: */
 10: /*
 11:    Spectral transformation module for eigenvalue problems
 12: */

 14: #if !defined(SLEPCST_H)
 15: #define SLEPCST_H
 16:  #include <slepcsys.h>
 17:  #include <slepcbv.h>
 18: #include <petscksp.h>

 20: SLEPC_EXTERN PetscErrorCode STInitializePackage(void);

 22: /*S
 23:     ST - Abstract SLEPc object that manages spectral transformations.
 24:     This object is accessed only in advanced applications.

 26:     Level: beginner

 28: .seealso:  STCreate(), EPS
 29: S*/
 30: typedef struct _p_ST* ST;

 32: /*J
 33:     STType - String with the name of a SLEPc spectral transformation

 35:     Level: beginner

 37: .seealso: STSetType(), ST
 38: J*/
 39: typedef const char* STType;
 40: #define STSHELL     "shell"
 41: #define STSHIFT     "shift"
 42: #define STSINVERT   "sinvert"
 43: #define STCAYLEY    "cayley"
 44: #define STPRECOND   "precond"
 45: #define STFILTER    "filter"

 47: /* Logging support */
 48: SLEPC_EXTERN PetscClassId ST_CLASSID;

 50: SLEPC_EXTERN PetscErrorCode STCreate(MPI_Comm,ST*);
 51: SLEPC_EXTERN PetscErrorCode STDestroy(ST*);
 52: SLEPC_EXTERN PetscErrorCode STReset(ST);
 53: SLEPC_EXTERN PetscErrorCode STSetType(ST,STType);
 54: SLEPC_EXTERN PetscErrorCode STGetType(ST,STType*);
 55: SLEPC_EXTERN PetscErrorCode STSetMatrices(ST,PetscInt,Mat*);
 56: SLEPC_EXTERN PetscErrorCode STGetMatrix(ST,PetscInt,Mat*);
 57: SLEPC_EXTERN PetscErrorCode STGetMatrixTransformed(ST,PetscInt,Mat*);
 58: SLEPC_EXTERN PetscErrorCode STGetNumMatrices(ST,PetscInt*);
 59: SLEPC_EXTERN PetscErrorCode STGetOperator(ST,Mat*);
 60: SLEPC_EXTERN PetscErrorCode STSetUp(ST);
 61: SLEPC_EXTERN PetscErrorCode STSetFromOptions(ST);
 62: SLEPC_EXTERN PetscErrorCode STView(ST,PetscViewer);

 64: PETSC_DEPRECATED_FUNCTION("Use STSetMatrices()") PETSC_STATIC_INLINE PetscErrorCode STSetOperators(ST st,PetscInt n,Mat *A) {return STSetMatrices(st,n,A);}
 65: PETSC_DEPRECATED_FUNCTION("Use STGetMatrix()") PETSC_STATIC_INLINE PetscErrorCode STGetOperators(ST st,PetscInt k,Mat *A) {return STGetMatrix(st,k,A);}
 66: PETSC_DEPRECATED_FUNCTION("Use STGetMatrixTransformed()") PETSC_STATIC_INLINE PetscErrorCode STGetTOperators(ST st,PetscInt k,Mat *A) {return STGetMatrixTransformed(st,k,A);}
 67: PETSC_DEPRECATED_FUNCTION("Use STGetOperator() followed by MatComputeOperator()") PETSC_STATIC_INLINE PetscErrorCode STComputeExplicitOperator(ST st,Mat *A) {
 69:   STGetOperator(st,&Op);
 70:   MatComputeOperator(Op,MATAIJ,A);
 71:   MatDestroy(&Op);
 72:   return(0);
 73: }

 75: SLEPC_EXTERN PetscErrorCode STApply(ST,Vec,Vec);
 76: SLEPC_EXTERN PetscErrorCode STMatMult(ST,PetscInt,Vec,Vec);
 77: SLEPC_EXTERN PetscErrorCode STMatMultTranspose(ST,PetscInt,Vec,Vec);
 78: SLEPC_EXTERN PetscErrorCode STMatSolve(ST,Vec,Vec);
 79: SLEPC_EXTERN PetscErrorCode STMatSolveTranspose(ST,Vec,Vec);
 80: SLEPC_EXTERN PetscErrorCode STGetBilinearForm(ST,Mat*);
 81: SLEPC_EXTERN PetscErrorCode STApplyTranspose(ST,Vec,Vec);
 82: SLEPC_EXTERN PetscErrorCode STMatSetUp(ST,PetscScalar,PetscScalar*);
 83: SLEPC_EXTERN PetscErrorCode STPostSolve(ST);
 84: SLEPC_EXTERN PetscErrorCode STResetMatrixState(ST);
 85: SLEPC_EXTERN PetscErrorCode STSetWorkVecs(ST,PetscInt);

 87: SLEPC_EXTERN PetscErrorCode STSetKSP(ST,KSP);
 88: SLEPC_EXTERN PetscErrorCode STGetKSP(ST,KSP*);
 89: SLEPC_EXTERN PetscErrorCode STSetShift(ST,PetscScalar);
 90: SLEPC_EXTERN PetscErrorCode STGetShift(ST,PetscScalar*);
 91: SLEPC_EXTERN PetscErrorCode STSetDefaultShift(ST,PetscScalar);
 92: SLEPC_EXTERN PetscErrorCode STScaleShift(ST,PetscScalar);
 93: SLEPC_EXTERN PetscErrorCode STSetBalanceMatrix(ST,Vec);
 94: SLEPC_EXTERN PetscErrorCode STGetBalanceMatrix(ST,Vec*);
 95: SLEPC_EXTERN PetscErrorCode STSetTransform(ST,PetscBool);
 96: SLEPC_EXTERN PetscErrorCode STGetTransform(ST,PetscBool*);

 98: SLEPC_EXTERN PetscErrorCode STSetOptionsPrefix(ST,const char*);
 99: SLEPC_EXTERN PetscErrorCode STAppendOptionsPrefix(ST,const char*);
100: SLEPC_EXTERN PetscErrorCode STGetOptionsPrefix(ST,const char*[]);

102: SLEPC_EXTERN PetscErrorCode STBackTransform(ST,PetscInt,PetscScalar*,PetscScalar*);
103: SLEPC_EXTERN PetscErrorCode STIsInjective(ST,PetscBool*);

105: SLEPC_EXTERN PetscErrorCode STCheckNullSpace(ST,BV);

107: SLEPC_EXTERN PetscErrorCode STMatCreateVecs(ST,Vec*,Vec*);
108: SLEPC_EXTERN PetscErrorCode STMatCreateVecsEmpty(ST,Vec*,Vec*);
109: SLEPC_EXTERN PetscErrorCode STMatGetSize(ST,PetscInt*,PetscInt*);
110: SLEPC_EXTERN PetscErrorCode STMatGetLocalSize(ST,PetscInt*,PetscInt*);

112: /*E
113:     STMatMode - Determines how to handle the coefficient matrix associated
114:     to the spectral transformation

116:     Level: intermediate

118: .seealso: STSetMatMode(), STGetMatMode()
119: E*/
120: typedef enum { ST_MATMODE_COPY,
121:                ST_MATMODE_INPLACE,
122:                ST_MATMODE_SHELL } STMatMode;
123: SLEPC_EXTERN const char *STMatModes[];

125: SLEPC_EXTERN PetscErrorCode STSetMatMode(ST,STMatMode);
126: SLEPC_EXTERN PetscErrorCode STGetMatMode(ST,STMatMode*);
127: SLEPC_EXTERN PetscErrorCode STSetMatStructure(ST,MatStructure);
128: SLEPC_EXTERN PetscErrorCode STGetMatStructure(ST,MatStructure*);

130: SLEPC_EXTERN PetscFunctionList STList;
131: SLEPC_EXTERN PetscErrorCode STRegister(const char[],PetscErrorCode(*)(ST));

133: /* --------- options specific to particular spectral transformations-------- */

135: SLEPC_EXTERN PetscErrorCode STShellGetContext(ST st,void **ctx);
136: SLEPC_EXTERN PetscErrorCode STShellSetContext(ST st,void *ctx);
137: SLEPC_EXTERN PetscErrorCode STShellSetApply(ST st,PetscErrorCode (*apply)(ST,Vec,Vec));
138: SLEPC_EXTERN PetscErrorCode STShellSetApplyTranspose(ST st,PetscErrorCode (*applytrans)(ST,Vec,Vec));
139: SLEPC_EXTERN PetscErrorCode STShellSetBackTransform(ST st,PetscErrorCode (*backtr)(ST,PetscInt,PetscScalar*,PetscScalar*));

141: SLEPC_EXTERN PetscErrorCode STCayleyGetAntishift(ST,PetscScalar*);
142: SLEPC_EXTERN PetscErrorCode STCayleySetAntishift(ST,PetscScalar);

144: SLEPC_EXTERN PetscErrorCode STPrecondGetMatForPC(ST,Mat*);
145: SLEPC_EXTERN PetscErrorCode STPrecondSetMatForPC(ST,Mat);
146: SLEPC_EXTERN PetscErrorCode STPrecondGetKSPHasMat(ST,PetscBool*);
147: SLEPC_EXTERN PetscErrorCode STPrecondSetKSPHasMat(ST,PetscBool);

149: SLEPC_EXTERN PetscErrorCode STFilterSetInterval(ST,PetscReal,PetscReal);
150: SLEPC_EXTERN PetscErrorCode STFilterGetInterval(ST,PetscReal*,PetscReal*);
151: SLEPC_EXTERN PetscErrorCode STFilterSetRange(ST,PetscReal,PetscReal);
152: SLEPC_EXTERN PetscErrorCode STFilterGetRange(ST,PetscReal*,PetscReal*);
153: SLEPC_EXTERN PetscErrorCode STFilterSetDegree(ST,PetscInt);
154: SLEPC_EXTERN PetscErrorCode STFilterGetDegree(ST,PetscInt*);
155: SLEPC_EXTERN PetscErrorCode STFilterGetThreshold(ST,PetscReal*);

157: #endif