GCC Code Coverage Report

Directory: ./
File: src/sys/classes/bv/tests/test14.c
Date: 2025-12-10 04:20:18
Exec Total Coverage
Lines: 49 53 92.5%
Functions: 1 1 100.0%
Branches: 154 258 59.7%
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 static char help[] = "Test BV created from a Mat.\n\n";
12
13 #include <slepcbv.h>
14
15 90 int main(int argc,char **argv)
16 {
17 90 BV X;
18 90 Mat A,B,M;
19 90 PetscInt i,j,n=20,k=8,Istart,Iend;
20 90 PetscViewer view;
21 90 PetscBool sparse=PETSC_FALSE,verbose;
22 90 PetscReal norm;
23 90 PetscScalar alpha;
24
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 90 PetscFunctionBeginUser;
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 90 PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
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 90 PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
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 90 PetscCall(PetscOptionsGetInt(NULL,NULL,"-k",&k,NULL));
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 90 PetscCall(PetscOptionsHasName(NULL,NULL,"-sparse",&sparse));
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 90 PetscCall(PetscOptionsHasName(NULL,NULL,"-verbose",&verbose));
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 170 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Test BV created from a %s Mat (length %" PetscInt_FMT ", k=%" PetscInt_FMT ").\n",sparse?"sparse":"dense",n,k));
32
33 /* Create matrix */
34
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 90 PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
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 90 PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,k));
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 90 if (!sparse) PetscCall(MatSetType(A,MATDENSE));
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 10 else PetscCall(MatSetType(A,MATAIJ));
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 90 PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
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 810 for (j=0;j<k;j++) {
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 8640 for (i=0;i<=n/2;i++) {
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 7920 if (i+j<n && i>=Istart && i<Iend) {
42 4400 alpha = (3.0*i+j-2)/(2*(i+j+1));
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 7920 PetscCall(MatSetValue(A,i+j,j,alpha,INSERT_VALUES));
44 }
45 }
46 }
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 90 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
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 90 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
49
50 /* Create BV object X */
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 90 PetscCall(BVCreateFromMat(A,&X));
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 90 PetscCall(BVSetFromOptions(X));
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 90 PetscCall(PetscObjectSetName((PetscObject)X,"X"));
54
55 /* Set up viewer */
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 90 PetscCall(PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&view));
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 90 if (verbose) {
58 ✗ PetscCall(PetscViewerPushFormat(view,PETSC_VIEWER_ASCII_MATLAB));
59 ✗ PetscCall(BVView(X,view));
60 }
61
62 /* Test BVCreateMat */
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 90 PetscCall(BVCreateMat(X,&B));
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 90 PetscCall(MatAXPY(B,-1.0,A,SAME_NONZERO_PATTERN));
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 90 PetscCall(MatNorm(B,NORM_1,&norm));
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 90 if (norm<100*PETSC_MACHINE_EPSILON) PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Norm of difference < 100*eps\n"));
67 ✗ else PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Norm of difference: %g\n",(double)norm));
68
69 /* Test BVOrthogonalize */
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 90 PetscCall(BVOrthogonalize(X,NULL));
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 90 if (verbose) PetscCall(BVView(X,view));
72
73 /* Check orthogonality */
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 90 PetscCall(MatCreateSeqDense(PETSC_COMM_SELF,k,k,NULL,&M));
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 90 PetscCall(MatShift(M,1.0)); /* set leading part to identity */
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 90 PetscCall(BVDot(X,X,M));
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 90 PetscCall(MatShift(M,-1.0));
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 90 PetscCall(MatNorm(M,NORM_1,&norm));
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 90 if (norm<100*PETSC_MACHINE_EPSILON) PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Level of orthogonality < 100*eps\n"));
80 ✗ else PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Level of orthogonality: %g\n",(double)norm));
81
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 90 PetscCall(MatDestroy(&M));
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 90 PetscCall(MatDestroy(&A));
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 90 PetscCall(MatDestroy(&B));
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 90 PetscCall(BVDestroy(&X));
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 90 PetscCall(SlepcFinalize());
87 return 0;
88 }
89
90 /*TEST
91
92 test:
93 suffix: 1
94 nsize: 2
95 args: -bv_type {{vecs contiguous svec mat}shared output}
96
97 test:
98 suffix: 2
99 args: -sparse
100
101 TEST*/
102