Actual source code: slepcfn.h
slepc-main 2024-11-15
1: /*
2: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3: SLEPc - Scalable Library for Eigenvalue Problem Computations
4: Copyright (c) 2002-, 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: User interface for the mathematical function object in SLEPc
12: */
14: #pragma once
16: #include <slepcsys.h>
18: /* SUBMANSEC = FN */
20: #define FN_MAX_SOLVE 16
22: SLEPC_EXTERN PetscErrorCode FNInitializePackage(void);
23: SLEPC_EXTERN PetscErrorCode FNFinalizePackage(void);
25: /*S
26: FN - Abstraction of a mathematical function.
28: Level: beginner
30: .seealso: FNCreate()
31: S*/
32: typedef struct _p_FN* FN;
34: /*J
35: FNType - String with the name of the mathematical function.
37: Level: beginner
39: .seealso: FNSetType(), FN
40: J*/
41: typedef const char* FNType;
42: #define FNCOMBINE "combine"
43: #define FNRATIONAL "rational"
44: #define FNEXP "exp"
45: #define FNLOG "log"
46: #define FNPHI "phi"
47: #define FNSQRT "sqrt"
48: #define FNINVSQRT "invsqrt"
50: /* Logging support */
51: SLEPC_EXTERN PetscClassId FN_CLASSID;
53: /*E
54: FNCombineType - Determines how two functions are combined
56: Level: advanced
58: .seealso: FNCombineSetChildren()
59: E*/
60: typedef enum { FN_COMBINE_ADD,
61: FN_COMBINE_MULTIPLY,
62: FN_COMBINE_DIVIDE,
63: FN_COMBINE_COMPOSE } FNCombineType;
65: /*E
66: FNParallelType - Indicates the parallel mode that will be used for matrix evaluation
68: Level: advanced
70: .seealso: FNSetParallel()
71: E*/
72: typedef enum { FN_PARALLEL_REDUNDANT,
73: FN_PARALLEL_SYNCHRONIZED } FNParallelType;
74: SLEPC_EXTERN const char *FNParallelTypes[];
76: SLEPC_EXTERN PetscErrorCode FNCreate(MPI_Comm,FN*);
77: SLEPC_EXTERN PetscErrorCode FNSetType(FN,FNType);
78: SLEPC_EXTERN PetscErrorCode FNGetType(FN,FNType*);
79: SLEPC_EXTERN PetscErrorCode FNSetOptionsPrefix(FN,const char *);
80: SLEPC_EXTERN PetscErrorCode FNAppendOptionsPrefix(FN,const char *);
81: SLEPC_EXTERN PetscErrorCode FNGetOptionsPrefix(FN,const char *[]);
82: SLEPC_EXTERN PetscErrorCode FNSetFromOptions(FN);
83: SLEPC_EXTERN PetscErrorCode FNView(FN,PetscViewer);
84: SLEPC_EXTERN PetscErrorCode FNViewFromOptions(FN,PetscObject,const char[]);
85: SLEPC_EXTERN PetscErrorCode FNDestroy(FN*);
86: SLEPC_EXTERN PetscErrorCode FNDuplicate(FN,MPI_Comm,FN*);
88: SLEPC_EXTERN PetscErrorCode FNSetScale(FN,PetscScalar,PetscScalar);
89: SLEPC_EXTERN PetscErrorCode FNGetScale(FN,PetscScalar*,PetscScalar*);
90: SLEPC_EXTERN PetscErrorCode FNSetMethod(FN,PetscInt);
91: SLEPC_EXTERN PetscErrorCode FNGetMethod(FN,PetscInt*);
92: SLEPC_EXTERN PetscErrorCode FNSetParallel(FN,FNParallelType);
93: SLEPC_EXTERN PetscErrorCode FNGetParallel(FN,FNParallelType*);
95: SLEPC_EXTERN PetscErrorCode FNEvaluateFunction(FN,PetscScalar,PetscScalar*);
96: SLEPC_EXTERN PetscErrorCode FNEvaluateDerivative(FN,PetscScalar,PetscScalar*);
97: SLEPC_EXTERN PetscErrorCode FNEvaluateFunctionMat(FN,Mat,Mat);
98: SLEPC_EXTERN PetscErrorCode FNEvaluateFunctionMatVec(FN,Mat,Vec);
100: SLEPC_EXTERN PetscFunctionList FNList;
101: SLEPC_EXTERN PetscErrorCode FNRegister(const char[],PetscErrorCode(*)(FN));
103: /* --------- options specific to particular functions -------- */
105: SLEPC_EXTERN PetscErrorCode FNRationalSetNumerator(FN,PetscInt,PetscScalar*);
106: SLEPC_EXTERN PetscErrorCode FNRationalGetNumerator(FN,PetscInt*,PetscScalar**);
107: SLEPC_EXTERN PetscErrorCode FNRationalSetDenominator(FN,PetscInt,PetscScalar*);
108: SLEPC_EXTERN PetscErrorCode FNRationalGetDenominator(FN,PetscInt*,PetscScalar**);
110: SLEPC_EXTERN PetscErrorCode FNCombineSetChildren(FN,FNCombineType,FN,FN);
111: SLEPC_EXTERN PetscErrorCode FNCombineGetChildren(FN,FNCombineType*,FN*,FN*);
113: SLEPC_EXTERN PetscErrorCode FNPhiSetIndex(FN,PetscInt);
114: SLEPC_EXTERN PetscErrorCode FNPhiGetIndex(FN,PetscInt*);