| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | ||
| 3 | SLEPc - Scalable Library for Eigenvalue Problem Computations | ||
| 4 | Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain | ||
| 5 | |||
| 6 | This file is part of SLEPc. | ||
| 7 | SLEPc is distributed under a 2-clause BSD license (see LICENSE). | ||
| 8 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | ||
| 9 | */ | ||
| 10 | /* | ||
| 11 | This file implements a wrapper to the PRIMME SVD solver | ||
| 12 | */ | ||
| 13 | |||
| 14 | #include <slepc/private/svdimpl.h> /*I "slepcsvd.h" I*/ | ||
| 15 | |||
| 16 | #include <primme.h> | ||
| 17 | |||
| 18 | #if defined(PETSC_USE_COMPLEX) | ||
| 19 | #if defined(PETSC_USE_REAL_SINGLE) | ||
| 20 | #define PRIMME_DRIVER cprimme_svds | ||
| 21 | #else | ||
| 22 | #define PRIMME_DRIVER zprimme_svds | ||
| 23 | #endif | ||
| 24 | #else | ||
| 25 | #if defined(PETSC_USE_REAL_SINGLE) | ||
| 26 | #define PRIMME_DRIVER sprimme_svds | ||
| 27 | #else | ||
| 28 | #define PRIMME_DRIVER dprimme_svds | ||
| 29 | #endif | ||
| 30 | #endif | ||
| 31 | |||
| 32 | #if defined(PRIMME_VERSION_MAJOR) && PRIMME_VERSION_MAJOR*100+PRIMME_VERSION_MINOR >= 202 | ||
| 33 | #define SLEPC_HAVE_PRIMME2p2 | ||
| 34 | #endif | ||
| 35 | |||
| 36 | typedef struct { | ||
| 37 | primme_svds_params primme; /* param struct */ | ||
| 38 | PetscInt bs; /* block size */ | ||
| 39 | primme_svds_preset_method method; /* primme method */ | ||
| 40 | SVD svd; /* reference to the solver */ | ||
| 41 | Vec x,y; /* auxiliary vectors */ | ||
| 42 | } SVD_PRIMME; | ||
| 43 | |||
| 44 | static void multMatvec_PRIMME(void*,PRIMME_INT*,void*,PRIMME_INT*,int*,int*,struct primme_svds_params*,int*); | ||
| 45 | |||
| 46 | 13786 | static void par_GlobalSumReal(void *sendBuf,void *recvBuf,int *count,primme_svds_params *primme,int *ierr) | |
| 47 | { | ||
| 48 |
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13786 | if (sendBuf == recvBuf) { |
| 49 |
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27572 | *ierr = MPI_Allreduce(MPI_IN_PLACE,recvBuf,*count,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)primme->commInfo)); |
| 50 | } else { | ||
| 51 | ✗ | *ierr = MPI_Allreduce(sendBuf,recvBuf,*count,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)primme->commInfo)); | |
| 52 | } | ||
| 53 | 13786 | } | |
| 54 | |||
| 55 | #if defined(SLEPC_HAVE_PRIMME3) | ||
| 56 | 7376 | static void par_broadcastReal(void *buf,int *count,primme_svds_params *primme,int *ierr) | |
| 57 | { | ||
| 58 |
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7376 | *ierr = MPI_Bcast(buf,*count,MPIU_REAL,0/*root*/,PetscObjectComm((PetscObject)primme->commInfo)); |
| 59 | 7376 | } | |
| 60 | #endif | ||
| 61 | |||
| 62 | #if defined(SLEPC_HAVE_PRIMME2p2) | ||
| 63 | 5736 | static void convTestFun(double *sval,void *leftsvec,void *rightsvec,double *resNorm, | |
| 64 | #if defined(SLEPC_HAVE_PRIMME3) | ||
| 65 | int *method, | ||
| 66 | #endif | ||
| 67 | int *isconv,struct primme_svds_params *primme,int *err) | ||
| 68 | { | ||
| 69 | 5736 | PetscErrorCode ierr; | |
| 70 | 5736 | SVD svd = (SVD)primme->commInfo; | |
| 71 |
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5736 | PetscReal sigma = sval?*sval:0.0; |
| 72 |
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5736 | PetscReal r = resNorm?*resNorm:HUGE_VAL,errest; |
| 73 | |||
| 74 | 5736 | ierr = (*svd->converged)(svd,sigma,r,&errest,svd->convergedctx); | |
| 75 |
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5736 | if (ierr) *err = 1; |
| 76 | else { | ||
| 77 | 5736 | *isconv = (errest<=svd->tol?1:0); | |
| 78 | 5736 | *err = 0; | |
| 79 | } | ||
| 80 | 5736 | } | |
| 81 | |||
| 82 | 4639 | static void monitorFun(void *basisSvals,int *basisSize,int *basisFlags,int *iblock,int *blockSize,void *basisNorms,int *numConverged,void *lockedSvals,int *numLocked,int *lockedFlags,void *lockedNorms,int *inner_its,void *LSRes, | |
| 83 | #if defined(SLEPC_HAVE_PRIMME3) | ||
| 84 | const char *msg,double *time, | ||
| 85 | #endif | ||
| 86 | primme_event *event,int *stage,struct primme_svds_params *primme,int *err) | ||
| 87 | { | ||
| 88 | |||
| 89 | 4639 | PetscErrorCode ierr = PETSC_SUCCESS; | |
| 90 | 4639 | SVD svd = (SVD)primme->commInfo; | |
| 91 | 4639 | PetscInt i,k,nerrest; | |
| 92 | |||
| 93 | 4639 | *err = 1; | |
| 94 |
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4639 | switch (*event) { |
| 95 | 845 | case primme_event_outer_iteration: | |
| 96 | /* Update SVD */ | ||
| 97 |
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845 | PetscCallVoid(PetscIntCast(primme->stats.numOuterIterations,&svd->its)); |
| 98 |
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845 | if (numConverged) svd->nconv = *numConverged; |
| 99 | 845 | k = 0; | |
| 100 |
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845 | if (lockedSvals && numLocked) for (i=0; i<*numLocked && k<svd->ncv; i++) svd->sigma[k++] = ((PetscReal*)lockedSvals)[i]; |
| 101 | 845 | nerrest = k; | |
| 102 |
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845 | if (iblock && blockSize) { |
| 103 |
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2308 | for (i=0; i<*blockSize && k+iblock[i]<svd->ncv; i++) svd->errest[k+iblock[i]] = ((PetscReal*)basisNorms)[i]; |
| 104 |
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845 | nerrest = k+(*blockSize>0?1+iblock[*blockSize-1]:0); |
| 105 | } | ||
| 106 |
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6296 | if (basisSvals && basisSize) for (i=0; i<*basisSize && k<svd->ncv; i++) svd->sigma[k++] = ((PetscReal*)basisSvals)[i]; |
| 107 | /* Show progress */ | ||
| 108 |
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845 | ierr = SVDMonitor(svd,svd->its,numConverged?*numConverged:0,svd->sigma,svd->errest,nerrest); |
| 109 | 845 | break; | |
| 110 | #if defined(SLEPC_HAVE_PRIMME3) | ||
| 111 | ✗ | case primme_event_message: | |
| 112 | /* Print PRIMME information messages */ | ||
| 113 | ✗ | ierr = PetscInfo(svd,"%s\n",msg); | |
| 114 | ✗ | break; | |
| 115 | #endif | ||
| 116 | default: | ||
| 117 | break; | ||
| 118 | } | ||
| 119 | 4639 | *err = (ierr!=0)? 1: 0; | |
| 120 | } | ||
| 121 | #endif /* SLEPC_HAVE_PRIMME2p2 */ | ||
| 122 | |||
| 123 | 8466 | static void multMatvec_PRIMME(void *xa,PRIMME_INT *ldx,void *ya,PRIMME_INT *ldy,int *blockSize,int *transpose,struct primme_svds_params *primme,int *ierr) | |
| 124 | { | ||
| 125 | 8466 | PetscInt i; | |
| 126 | 8466 | SVD_PRIMME *ops = (SVD_PRIMME*)primme->matrix; | |
| 127 | 8466 | Vec x = ops->x,y = ops->y; | |
| 128 | 8466 | SVD svd = ops->svd; | |
| 129 | |||
| 130 |
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8466 | PetscFunctionBegin; |
| 131 |
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21634 | for (i=0;i<*blockSize;i++) { |
| 132 |
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13168 | if (*transpose) { |
| 133 |
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6500 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecPlaceArray(y,(PetscScalar*)xa+(*ldx)*i)); |
| 134 |
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6500 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecPlaceArray(x,(PetscScalar*)ya+(*ldy)*i)); |
| 135 |
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6500 | PetscCallAbort(PetscObjectComm((PetscObject)svd),MatMult(svd->AT,y,x)); |
| 136 | } else { | ||
| 137 |
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6668 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecPlaceArray(x,(PetscScalar*)xa+(*ldx)*i)); |
| 138 |
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6668 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecPlaceArray(y,(PetscScalar*)ya+(*ldy)*i)); |
| 139 |
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6668 | PetscCallAbort(PetscObjectComm((PetscObject)svd),MatMult(svd->A,x,y)); |
| 140 | } | ||
| 141 |
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13168 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecResetArray(x)); |
| 142 |
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13168 | PetscCallAbort(PetscObjectComm((PetscObject)svd),VecResetArray(y)); |
| 143 | } | ||
| 144 |
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8466 | PetscFunctionReturnVoid(); |
| 145 | } | ||
| 146 | |||
| 147 | 42 | static PetscErrorCode SVDSetUp_PRIMME(SVD svd) | |
| 148 | { | ||
| 149 | 42 | PetscMPIInt numProcs,procID; | |
| 150 | 42 | PetscInt n,m,nloc,mloc; | |
| 151 | 42 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 152 | 42 | primme_svds_params *primme = &ops->primme; | |
| 153 | |||
| 154 |
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42 | PetscFunctionBegin; |
| 155 |
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42 | SVDCheckStandard(svd); |
| 156 |
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42 | SVDCheckDefinite(svd); |
| 157 |
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42 | PetscCallMPI(MPI_Comm_size(PetscObjectComm((PetscObject)svd),&numProcs)); |
| 158 |
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42 | PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)svd),&procID)); |
| 159 | |||
| 160 | /* Check some constraints and set some default values */ | ||
| 161 |
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42 | PetscCall(MatGetSize(svd->A,&m,&n)); |
| 162 |
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42 | PetscCall(MatGetLocalSize(svd->A,&mloc,&nloc)); |
| 163 |
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42 | PetscCall(SVDSetDimensions_Default(svd)); |
| 164 |
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42 | if (svd->max_it==PETSC_DETERMINE) svd->max_it = PETSC_INT_MAX; |
| 165 | 42 | svd->leftbasis = PETSC_TRUE; | |
| 166 |
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42 | SVDCheckUnsupported(svd,SVD_FEATURE_STOPPING); |
| 167 | #if !defined(SLEPC_HAVE_PRIMME2p2) | ||
| 168 | if (svd->converged != SVDConvergedAbsolute) PetscCall(PetscInfo(svd,"Warning: using absolute convergence test\n")); | ||
| 169 | #endif | ||
| 170 | |||
| 171 | /* Transfer SLEPc options to PRIMME options */ | ||
| 172 | 42 | primme_svds_free(primme); | |
| 173 | 42 | primme_svds_initialize(primme); | |
| 174 | 42 | primme->m = (PRIMME_INT)m; | |
| 175 | 42 | primme->n = (PRIMME_INT)n; | |
| 176 | 42 | primme->mLocal = (PRIMME_INT)mloc; | |
| 177 | 42 | primme->nLocal = (PRIMME_INT)nloc; | |
| 178 | 42 | primme->numSvals = (int)svd->nsv; | |
| 179 | 42 | primme->matrix = ops; | |
| 180 | 42 | primme->commInfo = svd; | |
| 181 | 42 | primme->maxMatvecs = (PRIMME_INT)svd->max_it; | |
| 182 | #if !defined(SLEPC_HAVE_PRIMME2p2) | ||
| 183 | primme->eps = SlepcDefaultTol(svd->tol); | ||
| 184 | #endif | ||
| 185 | 42 | primme->numProcs = numProcs; | |
| 186 | 42 | primme->procID = procID; | |
| 187 | 42 | primme->printLevel = 1; | |
| 188 | 42 | primme->matrixMatvec = multMatvec_PRIMME; | |
| 189 | 42 | primme->globalSumReal = par_GlobalSumReal; | |
| 190 | #if defined(SLEPC_HAVE_PRIMME3) | ||
| 191 | 42 | primme->broadcastReal = par_broadcastReal; | |
| 192 | #endif | ||
| 193 | #if defined(SLEPC_HAVE_PRIMME2p2) | ||
| 194 | 42 | primme->convTestFun = convTestFun; | |
| 195 | 42 | primme->monitorFun = monitorFun; | |
| 196 | #endif | ||
| 197 |
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42 | if (ops->bs > 0) primme->maxBlockSize = (int)ops->bs; |
| 198 | |||
| 199 |
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42 | switch (svd->which) { |
| 200 | 36 | case SVD_LARGEST: | |
| 201 | 36 | primme->target = primme_svds_largest; | |
| 202 | 36 | break; | |
| 203 | 6 | case SVD_SMALLEST: | |
| 204 | 6 | primme->target = primme_svds_smallest; | |
| 205 | 6 | break; | |
| 206 | } | ||
| 207 | |||
| 208 | /* If user sets mpd or ncv, maxBasisSize is modified */ | ||
| 209 |
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42 | if (svd->mpd!=PETSC_DETERMINE) { |
| 210 | 42 | primme->maxBasisSize = (int)svd->mpd; | |
| 211 |
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42 | if (svd->ncv!=PETSC_DETERMINE) PetscCall(PetscInfo(svd,"Warning: 'ncv' is ignored by PRIMME\n")); |
| 212 | ✗ | } else if (svd->ncv!=PETSC_DETERMINE) primme->maxBasisSize = (int)svd->ncv; | |
| 213 | |||
| 214 |
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42 | PetscCheck(primme_svds_set_method(ops->method,(primme_preset_method)EPS_PRIMME_DEFAULT_MIN_TIME,PRIMME_DEFAULT_METHOD,primme)>=0,PetscObjectComm((PetscObject)svd),PETSC_ERR_SUP,"PRIMME method not valid"); |
| 215 | |||
| 216 | 42 | svd->mpd = (PetscInt)primme->maxBasisSize; | |
| 217 |
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42 | svd->ncv = (PetscInt)(primme->locking?svd->nsv:0)+primme->maxBasisSize; |
| 218 | 42 | ops->bs = (PetscInt)primme->maxBlockSize; | |
| 219 | |||
| 220 | /* Set workspace */ | ||
| 221 |
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42 | PetscCall(SVDAllocateSolution(svd,0)); |
| 222 | |||
| 223 | /* Prepare auxiliary vectors */ | ||
| 224 |
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42 | if (!ops->x) PetscCall(MatCreateVecsEmpty(svd->A,&ops->x,&ops->y)); |
| 225 |
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14 | PetscFunctionReturn(PETSC_SUCCESS); |
| 226 | } | ||
| 227 | |||
| 228 | 42 | static PetscErrorCode SVDSolve_PRIMME(SVD svd) | |
| 229 | { | ||
| 230 | 42 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 231 | 42 | PetscScalar *svecs, *a; | |
| 232 | 42 | PetscInt i,ierrprimme,ld; | |
| 233 | 42 | PetscReal *svals,*rnorms; | |
| 234 | |||
| 235 |
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42 | PetscFunctionBegin; |
| 236 | /* Reset some parameters left from previous runs */ | ||
| 237 | 42 | ops->primme.aNorm = 0.0; | |
| 238 | 42 | ops->primme.initSize = (int)svd->nini; | |
| 239 | 42 | ops->primme.iseed[0] = -1; | |
| 240 | 42 | ops->primme.iseed[1] = -1; | |
| 241 | 42 | ops->primme.iseed[2] = -1; | |
| 242 | 42 | ops->primme.iseed[3] = -1; | |
| 243 | |||
| 244 | /* Allocating left and right singular vectors contiguously */ | ||
| 245 |
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42 | PetscCall(PetscCalloc1(ops->primme.numSvals*(ops->primme.mLocal+ops->primme.nLocal),&svecs)); |
| 246 | |||
| 247 | /* Call PRIMME solver */ | ||
| 248 |
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42 | PetscCall(PetscMalloc2(svd->ncv,&svals,svd->ncv,&rnorms)); |
| 249 | 42 | ierrprimme = PRIMME_DRIVER(svals,svecs,rnorms,&ops->primme); | |
| 250 |
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684 | for (i=0;i<svd->ncv;i++) svd->sigma[i] = svals[i]; |
| 251 |
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642 | for (i=0;i<svd->ncv;i++) svd->errest[i] = rnorms[i]; |
| 252 |
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42 | PetscCall(PetscFree2(svals,rnorms)); |
| 253 | |||
| 254 | /* Copy left and right singular vectors into svd */ | ||
| 255 |
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42 | PetscCall(BVGetLeadingDimension(svd->U,&ld)); |
| 256 |
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42 | PetscCall(BVGetArray(svd->U,&a)); |
| 257 |
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210 | for (i=0;i<ops->primme.initSize;i++) PetscCall(PetscArraycpy(a+i*ld,svecs+i*ops->primme.mLocal,ops->primme.mLocal)); |
| 258 |
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42 | PetscCall(BVRestoreArray(svd->U,&a)); |
| 259 | |||
| 260 |
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42 | PetscCall(BVGetLeadingDimension(svd->V,&ld)); |
| 261 |
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42 | PetscCall(BVGetArray(svd->V,&a)); |
| 262 |
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210 | for (i=0;i<ops->primme.initSize;i++) PetscCall(PetscArraycpy(a+i*ld,svecs+ops->primme.mLocal*ops->primme.initSize+i*ops->primme.nLocal,ops->primme.nLocal)); |
| 263 |
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42 | PetscCall(BVRestoreArray(svd->V,&a)); |
| 264 | |||
| 265 |
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42 | PetscCall(PetscFree(svecs)); |
| 266 | |||
| 267 | 42 | svd->nconv = ops->primme.initSize >= 0 ? (PetscInt)ops->primme.initSize : 0; | |
| 268 |
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42 | svd->reason = svd->nconv >= svd->nsv ? SVD_CONVERGED_TOL: SVD_DIVERGED_ITS; |
| 269 |
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42 | PetscCall(PetscIntCast(ops->primme.stats.numOuterIterations,&svd->its)); |
| 270 | |||
| 271 | /* Process PRIMME error code */ | ||
| 272 |
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42 | if (ierrprimme != 0) { |
| 273 | ✗ | switch (ierrprimme%100) { | |
| 274 | ✗ | case -1: | |
| 275 | ✗ | SETERRQ(PetscObjectComm((PetscObject)svd),PETSC_ERR_LIB,"PRIMME library failed with error code=%" PetscInt_FMT ": unexpected error",ierrprimme); | |
| 276 | ✗ | case -2: | |
| 277 | ✗ | SETERRQ(PetscObjectComm((PetscObject)svd),PETSC_ERR_LIB,"PRIMME library failed with error code=%" PetscInt_FMT ": allocation error",ierrprimme); | |
| 278 | case -3: /* stop due to maximum number of iterations or matvecs */ | ||
| 279 | break; | ||
| 280 | ✗ | default: | |
| 281 | ✗ | PetscCheck(ierrprimme<-39,PetscObjectComm((PetscObject)svd),PETSC_ERR_LIB,"PRIMME library failed with error code=%" PetscInt_FMT ": configuration error; check PRIMME's manual",ierrprimme); | |
| 282 | ✗ | PetscCheck(ierrprimme>=-39,PetscObjectComm((PetscObject)svd),PETSC_ERR_LIB,"PRIMME library failed with error code=%" PetscInt_FMT ": runtime error; check PRIMME's manual",ierrprimme); | |
| 283 | } | ||
| 284 | } | ||
| 285 |
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14 | PetscFunctionReturn(PETSC_SUCCESS); |
| 286 | } | ||
| 287 | |||
| 288 | 36 | static PetscErrorCode SVDReset_PRIMME(SVD svd) | |
| 289 | { | ||
| 290 | 36 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 291 | |||
| 292 |
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36 | PetscFunctionBegin; |
| 293 | 36 | primme_svds_free(&ops->primme); | |
| 294 |
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36 | PetscCall(VecDestroy(&ops->x)); |
| 295 |
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36 | PetscCall(VecDestroy(&ops->y)); |
| 296 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 297 | } | ||
| 298 | |||
| 299 | 36 | static PetscErrorCode SVDDestroy_PRIMME(SVD svd) | |
| 300 | { | ||
| 301 |
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36 | PetscFunctionBegin; |
| 302 |
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36 | PetscCall(PetscFree(svd->data)); |
| 303 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMESetBlockSize_C",NULL)); |
| 304 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMEGetBlockSize_C",NULL)); |
| 305 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMESetMethod_C",NULL)); |
| 306 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMEGetMethod_C",NULL)); |
| 307 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 308 | } | ||
| 309 | |||
| 310 | ✗ | static PetscErrorCode SVDView_PRIMME(SVD svd,PetscViewer viewer) | |
| 311 | { | ||
| 312 | ✗ | PetscBool isascii; | |
| 313 | ✗ | SVD_PRIMME *ctx = (SVD_PRIMME*)svd->data; | |
| 314 | ✗ | PetscMPIInt rank; | |
| 315 | |||
| 316 | ✗ | PetscFunctionBegin; | |
| 317 | ✗ | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii)); | |
| 318 | ✗ | if (isascii) { | |
| 319 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer," block size=%" PetscInt_FMT "\n",ctx->bs)); | |
| 320 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer," solver method: %s\n",SVDPRIMMEMethods[(SVDPRIMMEMethod)ctx->method])); | |
| 321 | |||
| 322 | /* Display PRIMME params */ | ||
| 323 | ✗ | PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)svd),&rank)); | |
| 324 | ✗ | if (!rank) primme_svds_display_params(ctx->primme); | |
| 325 | } | ||
| 326 | ✗ | PetscFunctionReturn(PETSC_SUCCESS); | |
| 327 | } | ||
| 328 | |||
| 329 | 30 | static PetscErrorCode SVDSetFromOptions_PRIMME(SVD svd,PetscOptionItems PetscOptionsObject) | |
| 330 | { | ||
| 331 | 30 | SVD_PRIMME *ctx = (SVD_PRIMME*)svd->data; | |
| 332 | 30 | PetscInt bs; | |
| 333 | 30 | SVDPRIMMEMethod meth; | |
| 334 | 30 | PetscBool flg; | |
| 335 | |||
| 336 |
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30 | PetscFunctionBegin; |
| 337 |
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30 | PetscOptionsHeadBegin(PetscOptionsObject,"SVD PRIMME Options"); |
| 338 | |||
| 339 |
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30 | PetscCall(PetscOptionsInt("-svd_primme_blocksize","Maximum block size","SVDPRIMMESetBlockSize",ctx->bs,&bs,&flg)); |
| 340 |
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30 | if (flg) PetscCall(SVDPRIMMESetBlockSize(svd,bs)); |
| 341 | |||
| 342 |
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30 | PetscCall(PetscOptionsEnum("-svd_primme_method","Method for solving the singular value problem","SVDPRIMMESetMethod",SVDPRIMMEMethods,(PetscEnum)ctx->method,(PetscEnum*)&meth,&flg)); |
| 343 |
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30 | if (flg) PetscCall(SVDPRIMMESetMethod(svd,meth)); |
| 344 | |||
| 345 |
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30 | PetscOptionsHeadEnd(); |
| 346 |
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10 | PetscFunctionReturn(PETSC_SUCCESS); |
| 347 | } | ||
| 348 | |||
| 349 | 18 | static PetscErrorCode SVDPRIMMESetBlockSize_PRIMME(SVD svd,PetscInt bs) | |
| 350 | { | ||
| 351 | 18 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 352 | |||
| 353 |
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18 | PetscFunctionBegin; |
| 354 |
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18 | if (bs == PETSC_DEFAULT || bs == PETSC_DECIDE) ops->bs = 0; |
| 355 | else { | ||
| 356 |
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18 | PetscCheck(bs>0,PetscObjectComm((PetscObject)svd),PETSC_ERR_ARG_OUTOFRANGE,"PRIMME: block size must be positive"); |
| 357 | 18 | ops->bs = bs; | |
| 358 | } | ||
| 359 |
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6 | PetscFunctionReturn(PETSC_SUCCESS); |
| 360 | } | ||
| 361 | |||
| 362 | /*@ | ||
| 363 | SVDPRIMMESetBlockSize - The maximum block size that PRIMME will try to use. | ||
| 364 | |||
| 365 | Logically Collective | ||
| 366 | |||
| 367 | Input Parameters: | ||
| 368 | + svd - the singular value solver context | ||
| 369 | - bs - block size | ||
| 370 | |||
| 371 | Options Database Key: | ||
| 372 | . -svd_primme_blocksize - Sets the max allowed block size value | ||
| 373 | |||
| 374 | Notes: | ||
| 375 | If the block size is not set, the value established by primme_svds_initialize | ||
| 376 | is used. | ||
| 377 | |||
| 378 | The user should set the block size based on the architecture specifics | ||
| 379 | of the target computer, as well as any a priori knowledge of multiplicities. | ||
| 380 | The code does NOT require bs > 1 to find multiple eigenvalues. For some | ||
| 381 | methods, keeping bs = 1 yields the best overall performance. | ||
| 382 | |||
| 383 | Level: advanced | ||
| 384 | |||
| 385 | .seealso: SVDPRIMMEGetBlockSize() | ||
| 386 | @*/ | ||
| 387 | 18 | PetscErrorCode SVDPRIMMESetBlockSize(SVD svd,PetscInt bs) | |
| 388 | { | ||
| 389 |
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18 | PetscFunctionBegin; |
| 390 |
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18 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 391 |
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18 | PetscValidLogicalCollectiveInt(svd,bs,2); |
| 392 |
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18 | PetscTryMethod(svd,"SVDPRIMMESetBlockSize_C",(SVD,PetscInt),(svd,bs)); |
| 393 |
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18 | PetscFunctionReturn(PETSC_SUCCESS); |
| 394 | } | ||
| 395 | |||
| 396 | 12 | static PetscErrorCode SVDPRIMMEGetBlockSize_PRIMME(SVD svd,PetscInt *bs) | |
| 397 | { | ||
| 398 | 12 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 399 | |||
| 400 |
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12 | PetscFunctionBegin; |
| 401 | 12 | *bs = ops->bs; | |
| 402 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 403 | } | ||
| 404 | |||
| 405 | /*@ | ||
| 406 | SVDPRIMMEGetBlockSize - Get the maximum block size the code will try to use. | ||
| 407 | |||
| 408 | Not Collective | ||
| 409 | |||
| 410 | Input Parameter: | ||
| 411 | . svd - the singular value solver context | ||
| 412 | |||
| 413 | Output Parameter: | ||
| 414 | . bs - returned block size | ||
| 415 | |||
| 416 | Level: advanced | ||
| 417 | |||
| 418 | .seealso: SVDPRIMMESetBlockSize() | ||
| 419 | @*/ | ||
| 420 | 12 | PetscErrorCode SVDPRIMMEGetBlockSize(SVD svd,PetscInt *bs) | |
| 421 | { | ||
| 422 |
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12 | PetscFunctionBegin; |
| 423 |
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12 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 424 |
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12 | PetscAssertPointer(bs,2); |
| 425 |
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12 | PetscUseMethod(svd,"SVDPRIMMEGetBlockSize_C",(SVD,PetscInt*),(svd,bs)); |
| 426 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 427 | } | ||
| 428 | |||
| 429 | 18 | static PetscErrorCode SVDPRIMMESetMethod_PRIMME(SVD svd,SVDPRIMMEMethod method) | |
| 430 | { | ||
| 431 | 18 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 432 | |||
| 433 |
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18 | PetscFunctionBegin; |
| 434 | 18 | ops->method = (primme_svds_preset_method)method; | |
| 435 |
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18 | PetscFunctionReturn(PETSC_SUCCESS); |
| 436 | } | ||
| 437 | |||
| 438 | /*@ | ||
| 439 | SVDPRIMMESetMethod - Sets the method for the PRIMME SVD solver. | ||
| 440 | |||
| 441 | Logically Collective | ||
| 442 | |||
| 443 | Input Parameters: | ||
| 444 | + svd - the singular value solver context | ||
| 445 | - method - method that will be used by PRIMME | ||
| 446 | |||
| 447 | Options Database Key: | ||
| 448 | . -svd_primme_method - Sets the method for the PRIMME SVD solver | ||
| 449 | |||
| 450 | Note: | ||
| 451 | If not set, the method defaults to SVD_PRIMME_HYBRID. | ||
| 452 | |||
| 453 | Level: advanced | ||
| 454 | |||
| 455 | .seealso: SVDPRIMMEGetMethod(), SVDPRIMMEMethod | ||
| 456 | @*/ | ||
| 457 | 18 | PetscErrorCode SVDPRIMMESetMethod(SVD svd,SVDPRIMMEMethod method) | |
| 458 | { | ||
| 459 |
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18 | PetscFunctionBegin; |
| 460 |
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18 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 461 |
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18 | PetscValidLogicalCollectiveEnum(svd,method,2); |
| 462 |
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18 | PetscTryMethod(svd,"SVDPRIMMESetMethod_C",(SVD,SVDPRIMMEMethod),(svd,method)); |
| 463 |
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18 | PetscFunctionReturn(PETSC_SUCCESS); |
| 464 | } | ||
| 465 | |||
| 466 | 12 | static PetscErrorCode SVDPRIMMEGetMethod_PRIMME(SVD svd,SVDPRIMMEMethod *method) | |
| 467 | { | ||
| 468 | 12 | SVD_PRIMME *ops = (SVD_PRIMME*)svd->data; | |
| 469 | |||
| 470 |
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12 | PetscFunctionBegin; |
| 471 | 12 | *method = (SVDPRIMMEMethod)ops->method; | |
| 472 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 473 | } | ||
| 474 | |||
| 475 | /*@ | ||
| 476 | SVDPRIMMEGetMethod - Gets the method for the PRIMME SVD solver. | ||
| 477 | |||
| 478 | Not Collective | ||
| 479 | |||
| 480 | Input Parameter: | ||
| 481 | . svd - the singular value solver context | ||
| 482 | |||
| 483 | Output Parameter: | ||
| 484 | . method - method that will be used by PRIMME | ||
| 485 | |||
| 486 | Level: advanced | ||
| 487 | |||
| 488 | .seealso: SVDPRIMMESetMethod(), SVDPRIMMEMethod | ||
| 489 | @*/ | ||
| 490 | 12 | PetscErrorCode SVDPRIMMEGetMethod(SVD svd,SVDPRIMMEMethod *method) | |
| 491 | { | ||
| 492 |
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12 | PetscFunctionBegin; |
| 493 |
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12 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 494 |
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12 | PetscAssertPointer(method,2); |
| 495 |
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12 | PetscUseMethod(svd,"SVDPRIMMEGetMethod_C",(SVD,SVDPRIMMEMethod*),(svd,method)); |
| 496 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 497 | } | ||
| 498 | |||
| 499 | 36 | SLEPC_EXTERN PetscErrorCode SVDCreate_PRIMME(SVD svd) | |
| 500 | { | ||
| 501 | 36 | SVD_PRIMME *primme; | |
| 502 | |||
| 503 |
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36 | PetscFunctionBegin; |
| 504 |
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36 | PetscCall(PetscNew(&primme)); |
| 505 | 36 | svd->data = (void*)primme; | |
| 506 | |||
| 507 | 36 | primme_svds_initialize(&primme->primme); | |
| 508 | 36 | primme->bs = 0; | |
| 509 | 36 | primme->method = (primme_svds_preset_method)SVD_PRIMME_HYBRID; | |
| 510 | 36 | primme->svd = svd; | |
| 511 | |||
| 512 | 36 | svd->ops->solve = SVDSolve_PRIMME; | |
| 513 | 36 | svd->ops->setup = SVDSetUp_PRIMME; | |
| 514 | 36 | svd->ops->setfromoptions = SVDSetFromOptions_PRIMME; | |
| 515 | 36 | svd->ops->destroy = SVDDestroy_PRIMME; | |
| 516 | 36 | svd->ops->reset = SVDReset_PRIMME; | |
| 517 | 36 | svd->ops->view = SVDView_PRIMME; | |
| 518 | |||
| 519 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMESetBlockSize_C",SVDPRIMMESetBlockSize_PRIMME)); |
| 520 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMEGetBlockSize_C",SVDPRIMMEGetBlockSize_PRIMME)); |
| 521 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMESetMethod_C",SVDPRIMMESetMethod_PRIMME)); |
| 522 |
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36 | PetscCall(PetscObjectComposeFunction((PetscObject)svd,"SVDPRIMMEGetMethod_C",SVDPRIMMEGetMethod_PRIMME)); |
| 523 |
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12 | PetscFunctionReturn(PETSC_SUCCESS); |
| 524 | } | ||
| 525 |