Date: 2026-05-01T10:02:14+00:00

Actual source code: test1.c

      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: */

     11: static char help[] = "Test BV operations.\n\n";

     13: #include <slepcbv.h>

     15: int main(int argc,char **argv)
     16: {
     17:   Vec               t,v;
     18:   Mat               Q=NULL,M=NULL;
     19:   BV                X,Y;
     20:   PetscInt          i,j,n=10,k=5,l=3,ldx,lda;
     21:   PetscMPIInt       rank;
     22:   PetscScalar       *q,*z;
     23:   const PetscScalar *pX;
     24:   PetscReal         nrm;
     25:   PetscViewer       view;
     26:   PetscBool         verbose,matcuda,mathip,testlda=PETSC_FALSE;

     28:   PetscFunctionBeginUser;
     29:   PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
     30:   PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
     31:   PetscCall(PetscOptionsGetInt(NULL,NULL,"-k",&k,NULL));
     32:   PetscCall(PetscOptionsGetInt(NULL,NULL,"-l",&l,NULL));
     33:   PetscCall(PetscOptionsHasName(NULL,NULL,"-verbose",&verbose));
     34:   PetscCall(PetscOptionsHasName(NULL,NULL,"-matcuda",&matcuda));
     35:   PetscCall(PetscOptionsHasName(NULL,NULL,"-mathip",&mathip));
     36:   PetscCall(PetscOptionsHasName(NULL,NULL,"-testlda",&testlda));
     37:   PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Test BV with %" PetscInt_FMT " columns of dimension %" PetscInt_FMT ".\n",k,n));

     39:   /* Create template vector */
     40:   PetscCall(VecCreate(PETSC_COMM_WORLD,&t));
     41:   PetscCall(VecSetSizes(t,PETSC_DECIDE,n));
     42:   PetscCall(VecSetFromOptions(t));

     44:   /* Create BV object X */
     45:   PetscCall(BVCreate(PETSC_COMM_WORLD,&X));
     46:   PetscCall(PetscObjectSetName((PetscObject)X,"X"));
     47:   PetscCall(BVSetSizesFromVec(X,t,k));
     48:   PetscCall(BVSetFromOptions(X));

     50:   /* Set up viewer */
     51:   PetscCall(PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&view));
     52:   PetscCall(PetscViewerPushFormat(view,PETSC_VIEWER_ASCII_INFO_DETAIL));
     53:   PetscCall(BVView(X,view));
     54:   PetscCall(PetscViewerPopFormat(view));

     56:   /* Fill X entries */
     57:   for (j=0;j<k;j++) {
     58:     PetscCall(BVGetColumn(X,j,&v));
     59:     PetscCall(VecSet(v,0.0));
     60:     for (i=0;i<4;i++) {
     61:       if (i+j<n) PetscCall(VecSetValue(v,i+j,(PetscScalar)(3*i+j-2),INSERT_VALUES));
     62:     }
     63:     PetscCall(VecAssemblyBegin(v));
     64:     PetscCall(VecAssemblyEnd(v));
     65:     PetscCall(BVRestoreColumn(X,j,&v));
     66:   }
     67:   if (verbose) PetscCall(BVView(X,view));

     69:   /* Create BV object Y */
     70:   PetscCall(BVCreate(PETSC_COMM_WORLD,&Y));
     71:   PetscCall(PetscObjectSetName((PetscObject)Y,"Y"));
     72:   PetscCall(BVSetSizesFromVec(Y,t,l));
     73:   PetscCall(BVSetFromOptions(Y));

     75:   /* Fill Y entries */
     76:   for (j=0;j<l;j++) {
     77:     PetscCall(BVGetColumn(Y,j,&v));
     78:     PetscCall(VecSet(v,(PetscScalar)(j+1)/4.0));
     79:     PetscCall(BVRestoreColumn(Y,j,&v));
     80:   }
     81:   if (verbose) PetscCall(BVView(Y,view));

     83:   /* Create Mat */
     84:   PetscCall(MatCreate(PETSC_COMM_SELF,&Q));
     85:   if (matcuda && PetscDefined(HAVE_CUDA)) PetscCall(MatSetType(Q,MATSEQDENSECUDA));
     86:   else if (mathip && PetscDefined(HAVE_HIP)) PetscCall(MatSetType(Q,MATSEQDENSEHIP));
     87:   else PetscCall(MatSetType(Q,MATSEQDENSE));
     88:   PetscCall(MatSetSizes(Q,k,l,k,l));
     89:   if (testlda) PetscCall(MatDenseSetLDA(Q,k+2));
     90:   PetscCall(MatSeqDenseSetPreallocation(Q,NULL));
     91:   PetscCall(PetscObjectSetName((PetscObject)Q,"Q"));
     92:   PetscCall(MatDenseGetArrayWrite(Q,&q));
     93:   PetscCall(MatDenseGetLDA(Q,&lda));
     94:   for (i=0;i<k;i++)
     95:     for (j=0;j<l;j++)
     96:       q[i+j*lda] = (i<j)? 2.0: -0.5;
     97:   PetscCall(MatDenseRestoreArrayWrite(Q,&q));
     98:   if (verbose) PetscCall(MatView(Q,NULL));

    100:   /* Test BVMult */
    101:   PetscCall(BVMult(Y,2.0,1.0,X,Q));
    102:   if (verbose) {
    103:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"After BVMult - - - - - - - - -\n"));
    104:     PetscCall(BVView(Y,view));
    105:   }

    107:   /* Test BVMultVec */
    108:   PetscCall(BVGetColumn(Y,0,&v));
    109:   PetscCall(PetscMalloc1(k,&z));
    110:   z[0] = 2.0;
    111:   for (i=1;i<k;i++) z[i] = -0.5*z[i-1];
    112:   PetscCall(BVMultVec(X,-1.0,1.0,v,z));
    113:   PetscCall(PetscFree(z));
    114:   PetscCall(BVRestoreColumn(Y,0,&v));
    115:   if (verbose) {
    116:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"After BVMultVec - - - - - - -\n"));
    117:     PetscCall(BVView(Y,view));
    118:   }

    120:   /* Test BVDot */
    121:   PetscCall(MatCreate(PETSC_COMM_SELF,&M));
    122:   if (matcuda && PetscDefined(HAVE_CUDA)) PetscCall(MatSetType(M,MATSEQDENSECUDA));
    123:   else if (mathip && PetscDefined(HAVE_HIP)) PetscCall(MatSetType(M,MATSEQDENSEHIP));
    124:   else PetscCall(MatSetType(M,MATSEQDENSE));
    125:   PetscCall(MatSetSizes(M,l,k,l,k));
    126:   if (testlda) PetscCall(MatDenseSetLDA(M,l+2));
    127:   PetscCall(MatSeqDenseSetPreallocation(M,NULL));
    128:   PetscCall(PetscObjectSetName((PetscObject)M,"M"));
    129:   PetscCall(BVDot(X,Y,M));
    130:   if (verbose) {
    131:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"After BVDot - - - - - - - - -\n"));
    132:     PetscCall(MatView(M,NULL));
    133:   }

    135:   /* Test BVDotVec */
    136:   PetscCall(BVGetColumn(Y,0,&v));
    137:   PetscCall(PetscMalloc1(k,&z));
    138:   PetscCall(BVDotVec(X,v,z));
    139:   PetscCall(BVRestoreColumn(Y,0,&v));
    140:   if (verbose) {
    141:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"After BVDotVec - - - - - - -\n"));
    142:     PetscCall(VecCreateSeqWithArray(PETSC_COMM_SELF,1,k,z,&v));
    143:     PetscCall(PetscObjectSetName((PetscObject)v,"z"));
    144:     PetscCall(VecView(v,view));
    145:     PetscCall(VecDestroy(&v));
    146:   }
    147:   PetscCall(PetscFree(z));

    149:   /* Test BVMultInPlace and BVScale */
    150:   PetscCall(BVMultInPlace(X,Q,1,l));
    151:   PetscCall(BVScale(X,2.0));
    152:   if (verbose) {
    153:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"After BVMultInPlace - - - - -\n"));
    154:     PetscCall(BVView(X,view));
    155:   }

    157:   /* Test BVNorm */
    158:   PetscCall(BVNormColumn(X,0,NORM_2,&nrm));
    159:   PetscCall(PetscPrintf(PETSC_COMM_WORLD,"2-Norm of X[0] = %g\n",(double)nrm));
    160:   PetscCall(BVNorm(X,NORM_FROBENIUS,&nrm));
    161:   PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Frobenius Norm of X = %g\n",(double)nrm));

    163:   /* Test BVGetArrayRead */
    164:   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank));
    165:   if (!rank) {
    166:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"First row of X =\n"));
    167:     PetscCall(BVGetLeadingDimension(X,&ldx));
    168:     PetscCall(BVGetArrayRead(X,&pX));
    169:     for (i=0;i<k;i++) PetscCall(PetscPrintf(PETSC_COMM_WORLD,"%g ",(double)PetscRealPart(pX[i*ldx])));
    170:     PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\n"));
    171:     PetscCall(BVRestoreArrayRead(X,&pX));
    172:   }

    174:   PetscCall(BVDestroy(&X));
    175:   PetscCall(BVDestroy(&Y));
    176:   PetscCall(MatDestroy(&Q));
    177:   PetscCall(MatDestroy(&M));
    178:   PetscCall(VecDestroy(&t));
    179:   PetscCall(SlepcFinalize());
    180:   return 0;
    181: }

    183: /*TEST

    185:    test:
    186:       args: -bv_type {{vecs contiguous svec mat}separate output} -verbose
    187:       suffix: 1
    188:       filter: sed -e 's/-0[.]/0./g'

    190:    testset:
    191:       args: -bv_type svec -vec_type cuda -verbose
    192:       requires: cuda
    193:       output_file: output/test1_1_svec_gpu.out
    194:       test:
    195:          suffix: 1_svec_cuda
    196:       test:
    197:          suffix: 1_svec_cuda_mat
    198:          args: -matcuda
    199:          filter: sed -e "s/seqdensecuda/seqdense/"

    201:    testset:
    202:       args: -bv_type mat -vec_type cuda -verbose
    203:       requires: cuda
    204:       output_file: output/test1_1_mat_gpu.out
    205:       filter: sed -e "s/seqdensecuda/seqdense/"
    206:       test:
    207:          suffix: 1_mat_cuda
    208:       test:
    209:          suffix: 1_mat_cuda_mat
    210:          args: -matcuda

    212:    testset:
    213:       args: -bv_type svec -vec_type hip -verbose
    214:       requires: hip
    215:       output_file: output/test1_1_svec_gpu.out
    216:       filter: sed -e "s/seqhip/seqcuda/" | sed -e "s/HIP/CUDA/"
    217:       test:
    218:          suffix: 1_svec_hip
    219:       test:
    220:          suffix: 1_svec_hip_mat
    221:          args: -mathip
    222:          filter: sed -e "s/seqhip/seqcuda/" | sed -e "s/seqdensehip/seqdense/" | sed -e "s/HIP/CUDA/"

    224:    testset:
    225:       args: -bv_type mat -vec_type hip -verbose
    226:       requires: hip
    227:       output_file: output/test1_1_mat_gpu.out
    228:       filter: sed -e "s/seqdensehip/seqdense/" | sed -e "s/HIP/CUDA/"
    229:       test:
    230:          suffix: 1_mat_hip
    231:       test:
    232:          suffix: 1_mat_hip_mat
    233:          args: -mathip

    235:    test:
    236:       args: -bv_type {{vecs contiguous svec mat}separate output} -verbose -testlda
    237:       suffix: 2
    238:       filter: sed -e 's/-0[.]/0./g'

    240:    testset:
    241:       args: -bv_type svec -vec_type cuda -verbose -testlda
    242:       requires: cuda
    243:       output_file: output/test1_1_svec_gpu.out
    244:       test:
    245:          suffix: 2_svec_cuda
    246:       test:
    247:          suffix: 2_svec_cuda_mat
    248:          args: -matcuda
    249:          filter: sed -e "s/seqdensecuda/seqdense/"

    251:    testset:
    252:       args: -bv_type mat -vec_type cuda -verbose -testlda
    253:       requires: cuda
    254:       output_file: output/test1_1_mat_gpu.out
    255:       filter: sed -e "s/seqdensecuda/seqdense/"
    256:       test:
    257:          suffix: 2_mat_cuda
    258:       test:
    259:          suffix: 2_mat_cuda_mat
    260:          args: -matcuda

    262:    testset:
    263:       args: -bv_type svec -vec_type hip -verbose -testlda
    264:       requires: hip
    265:       output_file: output/test1_1_svec_gpu.out
    266:       test:
    267:          suffix: 2_svec_hip
    268:          filter: sed -e "s/seqhip/seqcuda/" | sed -e "s/HIP/CUDA/"
    269:       test:
    270:          suffix: 2_svec_hip_mat
    271:          args: -mathip
    272:          filter: sed -e "s/seqhip/seqcuda/" | sed -e "s/seqdensehip/seqdense/" | sed -e "s/HIP/CUDA/"

    274:    testset:
    275:       args: -bv_type mat -vec_type hip -verbose -testlda
    276:       requires: hip
    277:       output_file: output/test1_1_mat_gpu.out
    278:       filter: sed -e "s/seqdensehip/seqdense/" | sed -e "s/HIP/CUDA/"
    279:       test:
    280:          suffix: 2_mat_hip
    281:       test:
    282:          suffix: 2_mat_hip_mat
    283:          args: -mathip

    285: TEST*/