GCC Code Coverage Report

Directory: ./
File: src/sys/classes/st/tests/test4.c
Date: 2025-10-04 04:19:13
Exec Total Coverage
Lines: 108 108 100.0%
Functions: 1 1 100.0%
Branches: 366 542 67.5%
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 ST with four matrices.\n\n";
12
13 #include <slepcst.h>
14
15 40 int main(int argc,char **argv)
16 {
17 40 Mat A,B,C,D,mat[4];
18 40 ST st;
19 40 KSP ksp;
20 40 Vec v,w;
21 40 STType type;
22 40 PetscScalar sigma;
23 40 PetscInt n=10,i,Istart,Iend;
24
25
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 40 PetscFunctionBeginUser;
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 40 PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
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 40 PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nTest ST with four matrices, n=%" PetscInt_FMT "\n\n",n));
29 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
30 Compute the operator matrices
31 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
32
33
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 40 PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
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 40 PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n));
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 40 PetscCall(MatSetFromOptions(A));
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 40 PetscCall(MatCreate(PETSC_COMM_WORLD,&B));
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 40 PetscCall(MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,n,n));
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 40 PetscCall(MatSetFromOptions(B));
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 40 PetscCall(MatCreate(PETSC_COMM_WORLD,&C));
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 40 PetscCall(MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,n,n));
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 40 PetscCall(MatSetFromOptions(C));
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 40 PetscCall(MatCreate(PETSC_COMM_WORLD,&D));
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 40 PetscCall(MatSetSizes(D,PETSC_DECIDE,PETSC_DECIDE,n,n));
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 40 PetscCall(MatSetFromOptions(D));
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 40 PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
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 440 for (i=Istart;i<Iend;i++) {
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 400 PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES));
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 400 if (i>0) {
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 360 PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES));
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 360 PetscCall(MatSetValue(B,i,i,(PetscScalar)i,INSERT_VALUES));
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 40 } else PetscCall(MatSetValue(B,i,i,-1.0,INSERT_VALUES));
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 400 if (i<n-1) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES));
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 400 PetscCall(MatSetValue(C,i,n-i-1,1.0,INSERT_VALUES));
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 400 PetscCall(MatSetValue(D,i,i,i*.1,INSERT_VALUES));
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 400 if (i==0) PetscCall(MatSetValue(D,0,n-1,1.0,INSERT_VALUES));
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 400 if (i==n-1) PetscCall(MatSetValue(D,n-1,0,1.0,INSERT_VALUES));
61 }
62
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 40 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyBegin(D,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatAssemblyEnd(D,MAT_FINAL_ASSEMBLY));
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 40 PetscCall(MatCreateVecs(A,&v,&w));
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 40 PetscCall(VecSet(v,1.0));
73
74 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
75 Create the spectral transformation object
76 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
77
78
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 40 PetscCall(STCreate(PETSC_COMM_WORLD,&st));
79 40 mat[0] = A;
80 40 mat[1] = B;
81 40 mat[2] = C;
82 40 mat[3] = D;
83
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 40 PetscCall(STSetMatrices(st,4,mat));
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 40 PetscCall(STGetKSP(st,&ksp));
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 40 PetscCall(KSPSetTolerances(ksp,100*PETSC_MACHINE_EPSILON,PETSC_CURRENT,PETSC_CURRENT,PETSC_CURRENT));
86
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 40 PetscCall(STSetFromOptions(st));
87
88 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
89 Apply the transformed operator for several ST's
90 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
91
92 /* shift, sigma=0.0 */
93
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 40 PetscCall(STSetUp(st));
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 40 PetscCall(STGetType(st,&type));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"ST type %s\n",type));
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 200 for (i=0;i<4;i++) {
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 160 PetscCall(STMatMult(st,i,v,w));
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 160 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"k= %" PetscInt_FMT "\n",i));
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 160 PetscCall(VecView(w,NULL));
100 }
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 40 PetscCall(STMatSolve(st,v,w));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"solve\n"));
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 40 PetscCall(VecView(w,NULL));
104
105 /* shift, sigma=0.1 */
106 40 sigma = 0.1;
107
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 40 PetscCall(STSetShift(st,sigma));
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 40 PetscCall(STGetShift(st,&sigma));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"With shift=%g\n",(double)PetscRealPart(sigma)));
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 200 for (i=0;i<4;i++) {
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 160 PetscCall(STMatMult(st,i,v,w));
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 160 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"k= %" PetscInt_FMT "\n",i));
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 160 PetscCall(VecView(w,NULL));
114 }
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 40 PetscCall(STMatSolve(st,v,w));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"solve\n"));
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 40 PetscCall(VecView(w,NULL));
118
119 /* sinvert, sigma=0.1 */
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 40 PetscCall(STPostSolve(st));
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 40 PetscCall(STSetType(st,STSINVERT));
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 40 PetscCall(STGetType(st,&type));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"ST type %s\n",type));
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 40 PetscCall(STGetShift(st,&sigma));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"With shift=%g\n",(double)PetscRealPart(sigma)));
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 200 for (i=0;i<4;i++) {
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 160 PetscCall(STMatMult(st,i,v,w));
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 160 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"k= %" PetscInt_FMT "\n",i));
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 160 PetscCall(VecView(w,NULL));
130 }
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 40 PetscCall(STMatSolve(st,v,w));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"solve\n"));
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 40 PetscCall(VecView(w,NULL));
134
135 /* sinvert, sigma=-0.5 */
136 40 sigma = -0.5;
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 40 PetscCall(STSetShift(st,sigma));
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 40 PetscCall(STGetShift(st,&sigma));
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"With shift=%g\n",(double)PetscRealPart(sigma)));
140
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 200 for (i=0;i<4;i++) {
141
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 160 PetscCall(STMatMult(st,i,v,w));
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 160 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"k= %" PetscInt_FMT "\n",i));
143
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 160 PetscCall(VecView(w,NULL));
144 }
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 40 PetscCall(STMatSolve(st,v,w));
146
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 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"solve\n"));
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 40 PetscCall(VecView(w,NULL));
148
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 40 PetscCall(STDestroy(&st));
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 40 PetscCall(MatDestroy(&A));
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 40 PetscCall(MatDestroy(&B));
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 40 PetscCall(MatDestroy(&C));
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 40 PetscCall(MatDestroy(&D));
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 40 PetscCall(VecDestroy(&v));
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 40 PetscCall(VecDestroy(&w));
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 40 PetscCall(SlepcFinalize());
157 return 0;
158 }
159
160 /*TEST
161
162 test:
163 suffix: 1
164 args: -st_transform -st_matmode {{copy shell}}
165 requires: !single
166
167 test:
168 suffix: 2
169 args: -st_matmode {{copy shell}}
170
171 TEST*/
172