GCC Code Coverage Report

Directory:	./
File:	src/eps/tests/test6.c
Date:	2025-11-19 04:19:03

	Exec	Total	Coverage
Lines:	38	38	100.0%
Functions:	1	1	100.0%
Branches:	123	184	66.8%

  
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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[] = "Diagonal eigenproblem.\n\n"
    
        "The command line options are:\n"
    
        "  -n <n>, where <n> = matrix dimension.\n"
    
        "  -seed <s>, where <s> = seed for random number generation.\n\n";
    
      #include <slepceps.h>
    
      65
      int main(int argc,char **argv)
    
      {
    
      65
        Mat            A;           /* problem matrix */
    
      65
        EPS            eps;         /* eigenproblem solver context */
    
      65
        Vec            v0;          /* initial vector */
    
      65
        PetscRandom    rand;
    
      65
        PetscReal      tol=PETSC_SMALL;
    
      65
        PetscInt       n=30,i,Istart,Iend,seed=0x12345678;
    
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      65
        PetscFunctionBeginUser;
    
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      65
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
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      65
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
    
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      65
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nDiagonal Eigenproblem, n=%" PetscInt_FMT "\n\n",n));
    
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      65
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
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      65
        PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n));
    
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      65
        PetscCall(MatSetFromOptions(A));
    
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      65
        PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
    
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      2015
        for (i=Istart;i<Iend;i++) PetscCall(MatSetValue(A,i,i,i+1,INSERT_VALUES));
    
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      65
        PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
    
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      65
        PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                            Solve the eigensystem
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      65
        PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
    
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      65
        PetscCall(EPSSetOperators(eps,A,NULL));
    
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      65
        PetscCall(EPSSetProblemType(eps,EPS_HEP));
    
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      65
        PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
    
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      65
        PetscCall(EPSSetFromOptions(eps));
    
        /* set random initial vector */
    
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      65
        PetscCall(MatCreateVecs(A,&v0,NULL));
    
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      65
        PetscCall(PetscRandomCreate(PETSC_COMM_WORLD,&rand));
    
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      65
        PetscCall(PetscRandomSetFromOptions(rand));
    
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      65
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-seed",&seed,NULL));
    
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      65
        PetscCall(PetscRandomSetSeed(rand,seed));
    
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      65
        PetscCall(PetscRandomSeed(rand));
    
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      65
        PetscCall(VecSetRandom(v0,rand));
    
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      65
        PetscCall(EPSSetInitialSpace(eps,1,&v0));
    
        /* call the solver */
    
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      65
        PetscCall(EPSSolve(eps));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                          Display solution and clean up
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      65
        PetscCall(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
    
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      65
        PetscCall(EPSDestroy(&eps));
    
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      65
        PetscCall(MatDestroy(&A));
    
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      65
        PetscCall(VecDestroy(&v0));
    
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      65
        PetscCall(PetscRandomDestroy(&rand));
    
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      65
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      /*TEST
    
         testset:
    
            args: -eps_nev 4
    
            requires: !single
    
            output_file: output/test6_1.out
    
            test:
    
               suffix: 1
    
               args: -eps_type {{krylovschur subspace arnoldi gd}}
    
            test:
    
               suffix: 1_power
    
               args: -eps_type power -eps_max_it 20000
    
            test:
    
               suffix: 1_gd2
    
               args: -eps_type gd -eps_gd_double_expansion
    
            test:
    
               suffix: 1_arpack
    
               args: -eps_type arpack
    
               requires: arpack
    
      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[] = "Diagonal eigenproblem.\n\n"
12			"The command line options are:\n"
13			" -n <n>, where <n> = matrix dimension.\n"
14			" -seed <s>, where <s> = seed for random number generation.\n\n";
15
16			#include <slepceps.h>
17
18		65	int main(int argc,char **argv)
19			{
20		65	Mat A; /* problem matrix */
21		65	EPS eps; /* eigenproblem solver context */
22		65	Vec v0; /* initial vector */
23		65	PetscRandom rand;
24		65	PetscReal tol=PETSC_SMALL;
25		65	PetscInt n=30,i,Istart,Iend,seed=0x12345678;
26
27	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	65	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.	65	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.	65	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.	65	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nDiagonal Eigenproblem, n=%" PetscInt_FMT "\n\n",n));
32
33	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.	65	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
34	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.	65	PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,n,n));
35	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.	65	PetscCall(MatSetFromOptions(A));
36	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.	65	PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
37	7/8 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 10 times. ✓ Branch 3 taken 8 times. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times. ✓ Branch 6 taken 2 times. ✓ Branch 7 taken 2 times.	2015	for (i=Istart;i<Iend;i++) PetscCall(MatSetValue(A,i,i,i+1,INSERT_VALUES));
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.	65	PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
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.	65	PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
40
41			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
42			Solve the eigensystem
43			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
44	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.	65	PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
45	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.	65	PetscCall(EPSSetOperators(eps,A,NULL));
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.	65	PetscCall(EPSSetProblemType(eps,EPS_HEP));
47	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.	65	PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
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.	65	PetscCall(EPSSetFromOptions(eps));
49			/* set random initial vector */
50	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.	65	PetscCall(MatCreateVecs(A,&v0,NULL));
51	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.	65	PetscCall(PetscRandomCreate(PETSC_COMM_WORLD,&rand));
52	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.	65	PetscCall(PetscRandomSetFromOptions(rand));
53	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.	65	PetscCall(PetscOptionsGetInt(NULL,NULL,"-seed",&seed,NULL));
54	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.	65	PetscCall(PetscRandomSetSeed(rand,seed));
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56	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.	65	PetscCall(VecSetRandom(v0,rand));
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.	65	PetscCall(EPSSetInitialSpace(eps,1,&v0));
58			/* call the solver */
59	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.	65	PetscCall(EPSSolve(eps));
60
61			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
62			Display solution and clean up
63			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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.	65	PetscCall(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
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.	65	PetscCall(EPSDestroy(&eps));
66	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.	65	PetscCall(MatDestroy(&A));
67	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.	65	PetscCall(VecDestroy(&v0));
68	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.	65	PetscCall(PetscRandomDestroy(&rand));
69	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.	65	PetscCall(SlepcFinalize());
70			return 0;
71			}
72
73			/*TEST
74
75			testset:
76			args: -eps_nev 4
77			requires: !single
78			output_file: output/test6_1.out
79			test:
80			suffix: 1
81			args: -eps_type {{krylovschur subspace arnoldi gd}}
82			test:
83			suffix: 1_power
84			args: -eps_type power -eps_max_it 20000
85			test:
86			suffix: 1_gd2
87			args: -eps_type gd -eps_gd_double_expansion
88			test:
89			suffix: 1_arpack
90			args: -eps_type arpack
91			requires: arpack
92
93			TEST*/
94