Actual source code: slepcbv.h

slepc-3.17.0 2022-03-31
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  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 basis vectors object in SLEPc
 12: */

 14: #if !defined(SLEPCBV_H)
 15: #define SLEPCBV_H
 16: #include <slepcsys.h>

 18: SLEPC_EXTERN PetscErrorCode BVInitializePackage(void);

 20: /*S
 21:     BV - Basis vectors, SLEPc object representing a collection of vectors
 22:     that typically constitute a basis of a subspace.

 24:     Level: beginner

 26: .seealso:  BVCreate()
 27: S*/
 28: typedef struct _p_BV* BV;

 30: /*J
 31:     BVType - String with the name of the type of BV. Each type differs in
 32:     the way data is stored internally.

 34:     Level: beginner

 36: .seealso: BVSetType(), BV
 37: J*/
 38: typedef const char* BVType;
 39: #define BVMAT        "mat"
 40: #define BVSVEC       "svec"
 41: #define BVVECS       "vecs"
 42: #define BVCONTIGUOUS "contiguous"
 43: #define BVTENSOR     "tensor"

 45: /* Logging support */
 46: SLEPC_EXTERN PetscClassId BV_CLASSID;

 48: /*E
 49:     BVOrthogType - Determines the method used in the orthogonalization
 50:     of vectors

 52:     Level: advanced

 54: .seealso: BVSetOrthogonalization(), BVGetOrthogonalization(), BVOrthogonalizeColumn(), BVOrthogRefineType
 55: E*/
 56: typedef enum { BV_ORTHOG_CGS,
 57:                BV_ORTHOG_MGS } BVOrthogType;
 58: SLEPC_EXTERN const char *BVOrthogTypes[];

 60: /*E
 61:     BVOrthogRefineType - Determines what type of refinement to use
 62:     during orthogonalization of vectors

 64:     Level: advanced

 66: .seealso: BVSetOrthogonalization(), BVGetOrthogonalization(), BVOrthogonalizeColumn()
 67: E*/
 68: typedef enum { BV_ORTHOG_REFINE_IFNEEDED,
 69:                BV_ORTHOG_REFINE_NEVER,
 70:                BV_ORTHOG_REFINE_ALWAYS } BVOrthogRefineType;
 71: SLEPC_EXTERN const char *BVOrthogRefineTypes[];

 73: /*E
 74:     BVOrthogBlockType - Determines the method used in block
 75:     orthogonalization (simultaneous orthogonalization of a set of vectors)

 77:     Level: advanced

 79: .seealso: BVSetOrthogonalization(), BVGetOrthogonalization(), BVOrthogonalize()
 80: E*/
 81: typedef enum { BV_ORTHOG_BLOCK_GS,
 82:                BV_ORTHOG_BLOCK_CHOL,
 83:                BV_ORTHOG_BLOCK_TSQR,
 84:                BV_ORTHOG_BLOCK_TSQRCHOL,
 85:                BV_ORTHOG_BLOCK_SVQB     } BVOrthogBlockType;
 86: SLEPC_EXTERN const char *BVOrthogBlockTypes[];

 88: /*E
 89:    BVMatMultType - Different ways of performing the BVMatMult() operation

 91:    Notes:
 92:    Allowed values are
 93: +  BV_MATMULT_VECS - perform a matrix-vector multiply per each column
 94: .  BV_MATMULT_MAT - carry out a Mat-Mat product with a dense matrix
 95: -  BV_MATMULT_MAT_SAVE - this case is deprecated

 97:    The default is BV_MATMULT_MAT except in the case of BVVECS.

 99:    Level: advanced

101: .seealso: BVSetMatMultMethod(), BVMatMult()
102: E*/
103: typedef enum { BV_MATMULT_VECS,
104:                BV_MATMULT_MAT,
105:                BV_MATMULT_MAT_SAVE } BVMatMultType;
106: SLEPC_EXTERN const char *BVMatMultTypes[];

108: SLEPC_EXTERN PetscErrorCode BVCreate(MPI_Comm,BV*);
109: SLEPC_EXTERN PetscErrorCode BVDestroy(BV*);
110: SLEPC_EXTERN PetscErrorCode BVSetType(BV,BVType);
111: SLEPC_EXTERN PetscErrorCode BVGetType(BV,BVType*);
112: SLEPC_EXTERN PetscErrorCode BVSetSizes(BV,PetscInt,PetscInt,PetscInt);
113: SLEPC_EXTERN PetscErrorCode BVSetSizesFromVec(BV,Vec,PetscInt);
114: SLEPC_EXTERN PetscErrorCode BVGetSizes(BV,PetscInt*,PetscInt*,PetscInt*);
115: SLEPC_EXTERN PetscErrorCode BVResize(BV,PetscInt,PetscBool);
116: SLEPC_EXTERN PetscErrorCode BVSetFromOptions(BV);
117: SLEPC_EXTERN PetscErrorCode BVView(BV,PetscViewer);
118: SLEPC_EXTERN PetscErrorCode BVViewFromOptions(BV,PetscObject,const char[]);

120: SLEPC_EXTERN PetscErrorCode BVGetColumn(BV,PetscInt,Vec*);
121: SLEPC_EXTERN PetscErrorCode BVRestoreColumn(BV,PetscInt,Vec*);
122: SLEPC_EXTERN PetscErrorCode BVGetSplit(BV,BV*,BV*);
123: SLEPC_EXTERN PetscErrorCode BVRestoreSplit(BV,BV*,BV*);
124: SLEPC_EXTERN PetscErrorCode BVGetArray(BV,PetscScalar**);
125: SLEPC_EXTERN PetscErrorCode BVRestoreArray(BV,PetscScalar**);
126: SLEPC_EXTERN PetscErrorCode BVGetArrayRead(BV,const PetscScalar**);
127: SLEPC_EXTERN PetscErrorCode BVRestoreArrayRead(BV,const PetscScalar**);
128: SLEPC_EXTERN PetscErrorCode BVCreateVec(BV,Vec*);
129: SLEPC_EXTERN PetscErrorCode BVSetActiveColumns(BV,PetscInt,PetscInt);
130: SLEPC_EXTERN PetscErrorCode BVGetActiveColumns(BV,PetscInt*,PetscInt*);
131: SLEPC_EXTERN PetscErrorCode BVInsertVec(BV,PetscInt,Vec);
132: SLEPC_EXTERN PetscErrorCode BVInsertVecs(BV,PetscInt,PetscInt*,Vec*,PetscBool);
133: SLEPC_EXTERN PetscErrorCode BVInsertConstraints(BV,PetscInt*,Vec*);
134: SLEPC_EXTERN PetscErrorCode BVSetNumConstraints(BV,PetscInt);
135: SLEPC_EXTERN PetscErrorCode BVGetNumConstraints(BV,PetscInt*);
136: SLEPC_EXTERN PetscErrorCode BVSetDefiniteTolerance(BV,PetscReal);
137: SLEPC_EXTERN PetscErrorCode BVGetDefiniteTolerance(BV,PetscReal*);
138: SLEPC_EXTERN PetscErrorCode BVDuplicate(BV,BV*);
139: SLEPC_EXTERN PetscErrorCode BVDuplicateResize(BV,PetscInt,BV*);
140: SLEPC_EXTERN PetscErrorCode BVCopy(BV,BV);
141: SLEPC_EXTERN PetscErrorCode BVCopyVec(BV,PetscInt,Vec);
142: SLEPC_EXTERN PetscErrorCode BVCopyColumn(BV,PetscInt,PetscInt);
143: SLEPC_EXTERN PetscErrorCode BVSetMatrix(BV,Mat,PetscBool);
144: SLEPC_EXTERN PetscErrorCode BVGetMatrix(BV,Mat*,PetscBool*);
145: SLEPC_EXTERN PetscErrorCode BVApplyMatrix(BV,Vec,Vec);
146: SLEPC_EXTERN PetscErrorCode BVApplyMatrixBV(BV,BV);
147: SLEPC_EXTERN PetscErrorCode BVGetCachedBV(BV,BV*);
148: SLEPC_EXTERN PetscErrorCode BVSetSignature(BV,Vec);
149: SLEPC_EXTERN PetscErrorCode BVGetSignature(BV,Vec);
150: SLEPC_EXTERN PetscErrorCode BVSetBufferVec(BV,Vec);
151: SLEPC_EXTERN PetscErrorCode BVGetBufferVec(BV,Vec*);

153: SLEPC_EXTERN PetscErrorCode BVMult(BV,PetscScalar,PetscScalar,BV,Mat);
154: SLEPC_EXTERN PetscErrorCode BVMultVec(BV,PetscScalar,PetscScalar,Vec,PetscScalar*);
155: SLEPC_EXTERN PetscErrorCode BVMultColumn(BV,PetscScalar,PetscScalar,PetscInt,PetscScalar*);
156: SLEPC_EXTERN PetscErrorCode BVMultInPlace(BV,Mat,PetscInt,PetscInt);
157: SLEPC_EXTERN PetscErrorCode BVMultInPlaceHermitianTranspose(BV,Mat,PetscInt,PetscInt);
158: PETSC_DEPRECATED_FUNCTION("Use BVMultInPlaceHermitianTranspose()") static inline PetscErrorCode BVMultInPlaceTranspose(BV bv,Mat A,PetscInt s,PetscInt e) {return BVMultInPlaceHermitianTranspose(bv,A,s,e);}
159: SLEPC_EXTERN PetscErrorCode BVMatMult(BV,Mat,BV);
160: SLEPC_EXTERN PetscErrorCode BVMatMultTranspose(BV,Mat,BV);
161: SLEPC_EXTERN PetscErrorCode BVMatMultHermitianTranspose(BV,Mat,BV);
162: SLEPC_EXTERN PetscErrorCode BVMatMultColumn(BV,Mat,PetscInt);
163: SLEPC_EXTERN PetscErrorCode BVMatMultTransposeColumn(BV,Mat,PetscInt);
164: SLEPC_EXTERN PetscErrorCode BVMatMultHermitianTransposeColumn(BV,Mat,PetscInt);
165: SLEPC_EXTERN PetscErrorCode BVMatProject(BV,Mat,BV,Mat);
166: SLEPC_EXTERN PetscErrorCode BVMatArnoldi(BV,Mat,Mat,PetscInt,PetscInt*,PetscReal*,PetscBool*);
167: SLEPC_EXTERN PetscErrorCode BVMatLanczos(BV,Mat,PetscReal*,PetscReal*,PetscInt,PetscInt*,PetscBool*);

169: SLEPC_EXTERN PetscErrorCode BVDot(BV,BV,Mat);
170: SLEPC_EXTERN PetscErrorCode BVDotVec(BV,Vec,PetscScalar*);
171: SLEPC_EXTERN PetscErrorCode BVDotVecBegin(BV,Vec,PetscScalar*);
172: SLEPC_EXTERN PetscErrorCode BVDotVecEnd(BV,Vec,PetscScalar*);
173: SLEPC_EXTERN PetscErrorCode BVDotColumn(BV,PetscInt,PetscScalar*);
174: SLEPC_EXTERN PetscErrorCode BVDotColumnBegin(BV,PetscInt,PetscScalar*);
175: SLEPC_EXTERN PetscErrorCode BVDotColumnEnd(BV,PetscInt,PetscScalar*);
176: SLEPC_EXTERN PetscErrorCode BVScale(BV,PetscScalar);
177: SLEPC_EXTERN PetscErrorCode BVScaleColumn(BV,PetscInt,PetscScalar);
178: SLEPC_EXTERN PetscErrorCode BVNorm(BV,NormType,PetscReal*);
179: SLEPC_EXTERN PetscErrorCode BVNormVec(BV,Vec,NormType,PetscReal*);
180: SLEPC_EXTERN PetscErrorCode BVNormVecBegin(BV,Vec,NormType,PetscReal*);
181: SLEPC_EXTERN PetscErrorCode BVNormVecEnd(BV,Vec,NormType,PetscReal*);
182: SLEPC_EXTERN PetscErrorCode BVNormColumn(BV,PetscInt,NormType,PetscReal*);
183: SLEPC_EXTERN PetscErrorCode BVNormColumnBegin(BV,PetscInt,NormType,PetscReal*);
184: SLEPC_EXTERN PetscErrorCode BVNormColumnEnd(BV,PetscInt,NormType,PetscReal*);
185: SLEPC_EXTERN PetscErrorCode BVNormalize(BV,PetscScalar*);
186: SLEPC_EXTERN PetscErrorCode BVSetRandom(BV);
187: SLEPC_EXTERN PetscErrorCode BVSetRandomNormal(BV);
188: SLEPC_EXTERN PetscErrorCode BVSetRandomSign(BV);
189: SLEPC_EXTERN PetscErrorCode BVSetRandomColumn(BV,PetscInt);
190: SLEPC_EXTERN PetscErrorCode BVSetRandomCond(BV,PetscReal);
191: SLEPC_EXTERN PetscErrorCode BVSetRandomContext(BV,PetscRandom);
192: SLEPC_EXTERN PetscErrorCode BVGetRandomContext(BV,PetscRandom*);

194: SLEPC_EXTERN PetscErrorCode BVSetOrthogonalization(BV,BVOrthogType,BVOrthogRefineType,PetscReal,BVOrthogBlockType);
195: SLEPC_EXTERN PetscErrorCode BVGetOrthogonalization(BV,BVOrthogType*,BVOrthogRefineType*,PetscReal*,BVOrthogBlockType*);
196: SLEPC_EXTERN PetscErrorCode BVOrthogonalize(BV,Mat);
197: SLEPC_EXTERN PetscErrorCode BVOrthogonalizeVec(BV,Vec,PetscScalar*,PetscReal*,PetscBool*);
198: SLEPC_EXTERN PetscErrorCode BVOrthogonalizeColumn(BV,PetscInt,PetscScalar*,PetscReal*,PetscBool*);
199: SLEPC_EXTERN PetscErrorCode BVOrthonormalizeColumn(BV,PetscInt,PetscBool,PetscReal*,PetscBool*);
200: SLEPC_EXTERN PetscErrorCode BVOrthogonalizeSomeColumn(BV,PetscInt,PetscBool*,PetscScalar*,PetscReal*,PetscBool*);
201: SLEPC_EXTERN PetscErrorCode BVBiorthogonalizeColumn(BV,BV,PetscInt);
202: SLEPC_EXTERN PetscErrorCode BVBiorthonormalizeColumn(BV,BV,PetscInt,PetscReal*);
203: SLEPC_EXTERN PetscErrorCode BVSetMatMultMethod(BV,BVMatMultType);
204: SLEPC_EXTERN PetscErrorCode BVGetMatMultMethod(BV,BVMatMultType*);

206: SLEPC_EXTERN PetscErrorCode BVCreateFromMat(Mat,BV*);
207: SLEPC_EXTERN PetscErrorCode BVCreateMat(BV,Mat*);
208: SLEPC_EXTERN PetscErrorCode BVGetMat(BV,Mat*);
209: SLEPC_EXTERN PetscErrorCode BVRestoreMat(BV,Mat*);

211: SLEPC_EXTERN PetscErrorCode BVScatter(BV,BV,VecScatter,Vec);
212: SLEPC_EXTERN PetscErrorCode BVSumQuadrature(BV,BV,PetscInt,PetscInt,PetscInt,PetscScalar*,PetscScalar*,VecScatter,PetscSubcomm,PetscInt,PetscBool);
213: SLEPC_EXTERN PetscErrorCode BVDotQuadrature(BV,BV,PetscScalar*,PetscInt,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscSubcomm,PetscInt,PetscBool);
214: SLEPC_EXTERN PetscErrorCode BVTraceQuadrature(BV,BV,PetscInt,PetscInt,PetscScalar*,VecScatter,PetscSubcomm,PetscInt,PetscBool,PetscReal*);

216: /*E
217:    BVSVDMethod - Different methods for computing the SVD of a BV

219:    Notes:
220:    Allowed values are
221: +  BV_SVD_METHOD_REFINE - based on the SVD of the cross product matrix S'*S, with refinement
222: .  BV_SVD_METHOD_QR     - based on the SVD of the triangular factor of qr(S)
223: -  BV_SVD_METHOD_QR_CAA - variant of QR intended for use in cammunication-avoiding Arnoldi

225:    Level: developer

227: .seealso: BVSVDAndRank()
228: E*/
229: typedef enum { BV_SVD_METHOD_REFINE,
230:                BV_SVD_METHOD_QR,
231:                BV_SVD_METHOD_QR_CAA } BVSVDMethod;
232: SLEPC_EXTERN const char *BVSVDMethods[];

234: SLEPC_EXTERN PetscErrorCode BVSVDAndRank(BV,PetscInt,PetscInt,PetscReal,BVSVDMethod,PetscScalar*,PetscReal*,PetscInt*);
235: SLEPC_EXTERN PetscErrorCode BVCISSResizeBases(BV,BV,BV,PetscInt,PetscInt,PetscInt,PetscInt);

237: SLEPC_EXTERN PetscErrorCode BVCreateTensor(BV,PetscInt,BV*);
238: SLEPC_EXTERN PetscErrorCode BVTensorBuildFirstColumn(BV,PetscInt);
239: SLEPC_EXTERN PetscErrorCode BVTensorCompress(BV,PetscInt);
240: SLEPC_EXTERN PetscErrorCode BVTensorGetDegree(BV,PetscInt*);
241: SLEPC_EXTERN PetscErrorCode BVTensorGetFactors(BV,BV*,Mat*);
242: SLEPC_EXTERN PetscErrorCode BVTensorRestoreFactors(BV,BV*,Mat*);

244: SLEPC_EXTERN PetscErrorCode BVSetOptionsPrefix(BV,const char*);
245: SLEPC_EXTERN PetscErrorCode BVAppendOptionsPrefix(BV,const char*);
246: SLEPC_EXTERN PetscErrorCode BVGetOptionsPrefix(BV,const char*[]);

248: SLEPC_EXTERN PetscFunctionList BVList;
249: SLEPC_EXTERN PetscErrorCode BVRegister(const char[],PetscErrorCode(*)(BV));

251: #endif