GCC Code Coverage Report

Directory:	./
File:	src/eps/tests/test4.c
Date:	2025-11-19 04:19:03

	Exec	Total	Coverage
Lines:	48	48	100.0%
Functions:	1	1	100.0%
Branches:	159	238	66.8%

  
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      Exec
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      /*
    
         - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
         SLEPc - Scalable Library for Eigenvalue Problem Computations
    
         Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain
    
         This file is part of SLEPc.
    
         SLEPc is distributed under a 2-clause BSD license (see LICENSE).
    
         - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
      */
    
      static char help[] = "Test the solution of a HEP without calling EPSSetFromOptions (based on ex1.c).\n\n"
    
        "The command line options are:\n"
    
        "  -n <n>, where <n> = number of grid subdivisions = matrix dimension.\n"
    
        "  -type <eps_type> = eps type to test.\n\n";
    
      #include <slepceps.h>
    
      111
      int main(int argc,char **argv)
    
      {
    
      111
        Mat            A;           /* problem matrix */
    
      111
        EPS            eps;         /* eigenproblem solver context */
    
      111
        PetscReal      tol=1000*PETSC_MACHINE_EPSILON;
    
      111
        PetscInt       n=30,i,Istart,Iend,nev;
    
      111
        PetscBool      flg,gd2;
    
      111
        char           epstype[30] = "krylovschur";
    
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      111
        PetscFunctionBeginUser;
    
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      111
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
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      111
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
    
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      111
        PetscCall(PetscOptionsGetString(NULL,NULL,"-type",epstype,sizeof(epstype),NULL));
    
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      111
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\n1-D Laplacian Eigenproblem, n=%" PetscInt_FMT "\n\n",n));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
           Compute the operator matrix that defines the eigensystem, Ax=kx
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      111
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
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      111
        PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n));
    
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      111
        PetscCall(MatSetFromOptions(A));
    
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      111
        PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
    
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      3441
        for (i=Istart;i<Iend;i++) {
    
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      3330
          if (i>0) PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES));
    
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      3330
          if (i<n-1) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES));
    
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      3330
          PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES));
    
        }
    
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      111
        PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
    
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      111
        PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                      Create the eigensolver and set various options
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
        /*
    
           Create eigensolver context
    
        */
    
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      111
        PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
    
        /*
    
           Set operators. In this case, it is a standard eigenvalue problem
    
        */
    
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      111
        PetscCall(EPSSetOperators(eps,A,NULL));
    
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      111
        PetscCall(EPSSetProblemType(eps,EPS_HEP));
    
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      111
        PetscCall(EPSSetDimensions(eps,4,PETSC_DETERMINE,PETSC_DETERMINE));
    
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      111
        PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
    
        /*
    
           Set solver parameters at runtime
    
        */
    
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      111
        PetscCall(PetscStrcmp(epstype,"gd2",&flg));
    
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      111
        if (flg) {
    
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      10
          PetscCall(EPSSetType(eps,EPSGD));
    
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      10
          PetscCall(EPSGDSetDoubleExpansion(eps,PETSC_TRUE));
    
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      10
          PetscCall(EPSGDGetDoubleExpansion(eps,&gd2));  /* not used */
    
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      101
        } else PetscCall(EPSSetType(eps,epstype));
    
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      111
        PetscCall(PetscStrcmp(epstype,"jd",&flg));
    
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      111
        if (flg) {
    
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      10
          PetscCall(EPSSetWhichEigenpairs(eps,EPS_TARGET_MAGNITUDE));
    
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      10
          PetscCall(EPSSetTarget(eps,4.0));
    
        }
    
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      111
        PetscCall(PetscStrcmp(epstype,"lanczos",&flg));
    
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      111
        if (flg) PetscCall(EPSLanczosSetReorthog(eps,EPS_LANCZOS_REORTHOG_LOCAL));
    
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      111
        PetscCall(PetscObjectTypeCompareAny((PetscObject)eps,&flg,EPSRQCG,EPSLOBPCG,""));
    
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      111
        if (flg) PetscCall(EPSSetWhichEigenpairs(eps,EPS_SMALLEST_REAL));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                            Solve the eigensystem
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      111
        PetscCall(EPSSolve(eps));
    
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      111
        PetscCall(EPSGetDimensions(eps,&nev,NULL,NULL));
    
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      111
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," Number of requested eigenvalues: %" PetscInt_FMT "\n",nev));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                          Display solution and clean up
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      111
        PetscCall(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
    
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      111
        PetscCall(EPSDestroy(&eps));
    
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      111
        PetscCall(MatDestroy(&A));
    
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      111
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      /*TEST
    
         testset:
    
            filter: sed -e "s/3.95905/3.95906/"
    
            output_file: output/test4_1.out
    
            test:
    
               suffix: 1
    
               args: -type {{krylovschur subspace arnoldi lanczos gd jd gd2 lapack}}
    
            test:
    
               suffix: 1_arpack
    
               args: -type arpack
    
               requires: arpack
    
            test:
    
               suffix: 1_primme
    
               args: -type primme
    
               requires: primme
    
         test:
    
            suffix: 2
    
            args: -type {{rqcg lobpcg}}
    
      TEST*/

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 the solution of a HEP without calling EPSSetFromOptions (based on ex1.c).\n\n"
12			"The command line options are:\n"
13			" -n <n>, where <n> = number of grid subdivisions = matrix dimension.\n"
14			" -type <eps_type> = eps type to test.\n\n";
15
16			#include <slepceps.h>
17
18		111	int main(int argc,char **argv)
19			{
20		111	Mat A; /* problem matrix */
21		111	EPS eps; /* eigenproblem solver context */
22		111	PetscReal tol=1000*PETSC_MACHINE_EPSILON;
23		111	PetscInt n=30,i,Istart,Iend,nev;
24		111	PetscBool flg,gd2;
25		111	char epstype[30] = "krylovschur";
26
27	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	111	PetscFunctionBeginUser;
28	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
29
30	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
31	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscOptionsGetString(NULL,NULL,"-type",epstype,sizeof(epstype),NULL));
32	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\n1-D Laplacian Eigenproblem, n=%" PetscInt_FMT "\n\n",n));
33
34			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
35			Compute the operator matrix that defines the eigensystem, Ax=kx
36			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
37
38	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
39	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n));
40	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatSetFromOptions(A));
41
42	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
43	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	3441	for (i=Istart;i<Iend;i++) {
44	6/8 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	3330	if (i>0) PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES));
45	6/8 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	3330	if (i<n-1) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES));
46	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	3330	PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES));
47			}
48	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
49	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
50
51			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
52			Create the eigensolver and set various options
53			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
54			/*
55			Create eigensolver context
56			*/
57	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
58
59			/*
60			Set operators. In this case, it is a standard eigenvalue problem
61			*/
62	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSSetOperators(eps,A,NULL));
63	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSSetProblemType(eps,EPS_HEP));
64	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSSetDimensions(eps,4,PETSC_DETERMINE,PETSC_DETERMINE));
65	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
66
67			/*
68			Set solver parameters at runtime
69			*/
70	3/6 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscStrcmp(epstype,"gd2",&flg));
71	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	111	if (flg) {
72	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	10	PetscCall(EPSSetType(eps,EPSGD));
73	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	10	PetscCall(EPSGDSetDoubleExpansion(eps,PETSC_TRUE));
74	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	10	PetscCall(EPSGDGetDoubleExpansion(eps,&gd2)); /* not used */
75	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	101	} else PetscCall(EPSSetType(eps,epstype));
76	3/6 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscStrcmp(epstype,"jd",&flg));
77	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	111	if (flg) {
78	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	10	PetscCall(EPSSetWhichEigenpairs(eps,EPS_TARGET_MAGNITUDE));
79	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	10	PetscCall(EPSSetTarget(eps,4.0));
80			}
81	3/6 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscStrcmp(epstype,"lanczos",&flg));
82	6/8 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	111	if (flg) PetscCall(EPSLanczosSetReorthog(eps,EPS_LANCZOS_REORTHOG_LOCAL));
83	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscObjectTypeCompareAny((PetscObject)eps,&flg,EPSRQCG,EPSLOBPCG,""));
84	6/8 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	111	if (flg) PetscCall(EPSSetWhichEigenpairs(eps,EPS_SMALLEST_REAL));
85
86			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
87			Solve the eigensystem
88			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
89
90	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSSolve(eps));
91	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSGetDimensions(eps,&nev,NULL,NULL));
92	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(PetscPrintf(PETSC_COMM_WORLD," Number of requested eigenvalues: %" PetscInt_FMT "\n",nev));
93
94			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
95			Display solution and clean up
96			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
97
98	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
99	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(EPSDestroy(&eps));
100	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	111	PetscCall(MatDestroy(&A));
101	3/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken.	111	PetscCall(SlepcFinalize());
102			return 0;
103			}
104
105			/*TEST
106
107			testset:
108			filter: sed -e "s/3.95905/3.95906/"
109			output_file: output/test4_1.out
110			test:
111			suffix: 1
112			args: -type {{krylovschur subspace arnoldi lanczos gd jd gd2 lapack}}
113			test:
114			suffix: 1_arpack
115			args: -type arpack
116			requires: arpack
117			test:
118			suffix: 1_primme
119			args: -type primme
120			requires: primme
121
122			test:
123			suffix: 2
124			args: -type {{rqcg lobpcg}}
125
126			TEST*/
127