GCC Code Coverage Report


Directory: ./
File: src/sys/classes/bv/tests/test10.c
Date: 2025-10-04 04:19:13
Exec Total Coverage
Lines: 77 77 100.0%
Functions: 1 1 100.0%
Branches: 250 378 66.1%

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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 static char help[] = "Test split reductions in BV.\n\n";
12
13 #include <slepcbv.h>
14
15 96 int main(int argc,char **argv)
16 {
17 96 Vec t,v,w,y,z,zsplit;
18 96 BV X;
19 96 PetscInt i,j,n=10,k=5;
20 96 PetscScalar *zarray;
21 96 PetscReal nrm;
22
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96 PetscFunctionBeginUser;
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96 PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
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96 PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
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96 PetscCall(PetscOptionsGetInt(NULL,NULL,"-k",&k,NULL));
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96 PetscCheck(k>2,PETSC_COMM_WORLD,PETSC_ERR_USER_INPUT,"Should specify at least k=3 columns");
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96 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"BV split ops (%" PetscInt_FMT " columns of dimension %" PetscInt_FMT ").\n",k,n));
29
30 /* Create template vector */
31
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96 PetscCall(VecCreate(PETSC_COMM_WORLD,&t));
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96 PetscCall(VecSetSizes(t,PETSC_DECIDE,n));
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96 PetscCall(VecSetFromOptions(t));
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96 PetscCall(VecDuplicate(t,&v));
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96 PetscCall(VecSet(v,1.0));
36
37 /* Create BV object X */
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96 PetscCall(BVCreate(PETSC_COMM_WORLD,&X));
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96 PetscCall(PetscObjectSetName((PetscObject)X,"X"));
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96 PetscCall(BVSetSizesFromVec(X,t,k));
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96 PetscCall(BVSetFromOptions(X));
42
43 /* Fill X entries */
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576 for (j=0;j<k;j++) {
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480 PetscCall(BVGetColumn(X,j,&w));
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480 PetscCall(VecSet(w,0.0));
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2400 for (i=0;i<4;i++) {
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1920 if (i+j<n) PetscCall(VecSetValue(w,i+j,(PetscScalar)(3*i+j-2),INSERT_VALUES));
49 }
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480 PetscCall(VecAssemblyBegin(w));
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480 PetscCall(VecAssemblyEnd(w));
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480 PetscCall(BVRestoreColumn(X,j,&w));
53 }
54
55 /* Use regular operations */
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96 PetscCall(VecCreateSeq(PETSC_COMM_SELF,k+6,&z));
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96 PetscCall(VecGetArray(z,&zarray));
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96 PetscCall(BVGetColumn(X,0,&w));
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96 PetscCall(VecDot(w,v,zarray));
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96 PetscCall(BVRestoreColumn(X,0,&w));
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96 PetscCall(BVDotVec(X,v,zarray+1));
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96 PetscCall(BVDotColumn(X,2,zarray+1+k));
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96 PetscCall(BVGetColumn(X,1,&y));
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96 PetscCall(VecNorm(y,NORM_2,&nrm));
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96 PetscCall(BVRestoreColumn(X,1,&y));
67 96 zarray[k+3] = nrm;
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96 PetscCall(BVNormVec(X,v,NORM_2,&nrm));
69 96 zarray[k+4] = nrm;
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96 PetscCall(BVNormColumn(X,0,NORM_2,&nrm));
71 96 zarray[k+5] = nrm;
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96 PetscCall(VecRestoreArray(z,&zarray));
73
74 /* Use split operations */
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96 PetscCall(VecCreateSeq(PETSC_COMM_SELF,k+6,&zsplit));
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96 PetscCall(VecGetArray(zsplit,&zarray));
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96 PetscCall(BVGetColumn(X,0,&w));
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96 PetscCall(VecDotBegin(w,v,zarray));
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96 PetscCall(BVDotVecBegin(X,v,zarray+1));
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96 PetscCall(BVDotColumnBegin(X,2,zarray+1+k));
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96 PetscCall(VecDotEnd(w,v,zarray));
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96 PetscCall(BVRestoreColumn(X,0,&w));
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96 PetscCall(BVDotVecEnd(X,v,zarray+1));
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96 PetscCall(BVDotColumnEnd(X,2,zarray+1+k));
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96 PetscCall(BVGetColumn(X,1,&y));
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96 PetscCall(VecNormBegin(y,NORM_2,&nrm));
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96 PetscCall(BVNormVecBegin(X,v,NORM_2,&nrm));
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96 PetscCall(BVNormColumnBegin(X,0,NORM_2,&nrm));
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96 PetscCall(VecNormEnd(y,NORM_2,&nrm));
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96 PetscCall(BVRestoreColumn(X,1,&y));
92 96 zarray[k+3] = nrm;
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96 PetscCall(BVNormVecEnd(X,v,NORM_2,&nrm));
94 96 zarray[k+4] = nrm;
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96 PetscCall(BVNormColumnEnd(X,0,NORM_2,&nrm));
96 96 zarray[k+5] = nrm;
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96 PetscCall(VecRestoreArray(zsplit,&zarray));
98
99 /* Show difference */
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96 PetscCall(VecAXPY(z,-1.0,zsplit));
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96 PetscCall(VecNorm(z,NORM_1,&nrm));
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96 PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD,"%g\n",(double)nrm));
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96 PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD,NULL));
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96 PetscCall(BVDestroy(&X));
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96 PetscCall(VecDestroy(&t));
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96 PetscCall(VecDestroy(&v));
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96 PetscCall(VecDestroy(&z));
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96 PetscCall(VecDestroy(&zsplit));
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96 PetscCall(SlepcFinalize());
111 return 0;
112 }
113
114 /*TEST
115
116 testset:
117 nsize: 2
118 output_file: output/test10_1.out
119 test:
120 suffix: 1
121 args: -bv_type {{vecs contiguous svec mat}shared output}
122 test:
123 suffix: 1_cuda
124 args: -bv_type {{svec mat}} -vec_type cuda
125 requires: cuda
126 test:
127 suffix: 1_hip
128 args: -bv_type {{svec mat}} -vec_type hip
129 requires: hip
130
131 TEST*/
132