GCC Code Coverage Report

Directory:	./
File:	src/eps/tests/test40.c
Date:	2025-11-19 04:19:03

	Exec	Total	Coverage
Lines:	51	51	100.0%
Functions:	2	2	100.0%
Branches:	142	214	66.4%

  
      Line
      Branch
      Exec
      Source
    
      /*
    
         - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
         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 two-sided Krylov-Schur without calling EPSSetFromOptions (based on ex5.c).\n\n"
    
        "The command line options are:\n"
    
        "  -m <m>, where <m> = number of grid subdivisions in each dimension.\n\n";
    
      #include <slepceps.h>
    
      /*
    
         User-defined routines
    
      */
    
      PetscErrorCode MatMarkovModel(PetscInt m,Mat A);
    
      10
      int main(int argc,char **argv)
    
      {
    
      10
        Mat            A;               /* operator matrix */
    
      10
        EPS            eps;             /* eigenproblem solver context */
    
      10
        PetscReal      tol=1000*PETSC_MACHINE_EPSILON;
    
      10
        PetscInt       N,m=15,nev;
    
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      10
        PetscFunctionBeginUser;
    
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      10
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
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      10
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL));
    
      10
        N = m*(m+1)/2;
    
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      10
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nMarkov Model, N=%" PetscInt_FMT " (m=%" PetscInt_FMT ")\n\n",N,m));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
           Compute the operator matrix that defines the eigensystem, Ax=kx
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      10
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
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      10
        PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,N));
    
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      10
        PetscCall(MatSetFromOptions(A));
    
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      10
        PetscCall(MatMarkovModel(m,A));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                      Create the eigensolver and set various options
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      10
        PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
    
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      10
        PetscCall(EPSSetOperators(eps,A,NULL));
    
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      10
        PetscCall(EPSSetProblemType(eps,EPS_NHEP));
    
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      10
        PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
    
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      10
        PetscCall(EPSSetDimensions(eps,4,PETSC_DETERMINE,PETSC_DETERMINE));
    
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      10
        PetscCall(EPSSetWhichEigenpairs(eps,EPS_LARGEST_REAL));
    
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      10
        PetscCall(EPSSetTwoSided(eps,PETSC_TRUE));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                            Solve the eigensystem
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      10
        PetscCall(EPSSolve(eps));
    
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      10
        PetscCall(EPSGetDimensions(eps,&nev,NULL,NULL));
    
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      10
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," Number of requested eigenvalues: %" PetscInt_FMT "\n",nev));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                          Display solution and clean up
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      10
        PetscCall(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
    
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      10
        PetscCall(EPSDestroy(&eps));
    
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      10
        PetscCall(MatDestroy(&A));
    
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      10
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      10
      PetscErrorCode MatMarkovModel(PetscInt m,Mat A)
    
      {
    
      10
        const PetscReal cst = 0.5/(PetscReal)(m-1);
    
      10
        PetscReal       pd,pu;
    
      10
        PetscInt        Istart,Iend,i,j,jmax,ix=0;
    
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      10
        PetscFunctionBeginUser;
    
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      10
        PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
    
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      160
        for (i=1;i<=m;i++) {
    
      150
          jmax = m-i+1;
    
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      1350
          for (j=1;j<=jmax;j++) {
    
      1200
            ix = ix + 1;
    
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      1200
            if (ix-1<Istart || ix>Iend) continue;  /* compute only owned rows */
    
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      1200
            if (j!=jmax) {
    
      1050
              pd = cst*(PetscReal)(i+j-1);
    
              /* north */
    
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      1050
              if (i==1) PetscCall(MatSetValue(A,ix-1,ix,2*pd,INSERT_VALUES));
    
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      910
              else PetscCall(MatSetValue(A,ix-1,ix,pd,INSERT_VALUES));
    
              /* east */
    
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      1050
              if (j==1) PetscCall(MatSetValue(A,ix-1,ix+jmax-1,2*pd,INSERT_VALUES));
    
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      910
              else PetscCall(MatSetValue(A,ix-1,ix+jmax-1,pd,INSERT_VALUES));
    
            }
    
            /* south */
    
      1200
            pu = 0.5 - cst*(PetscReal)(i+j-3);
    
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      1200
            if (j>1) PetscCall(MatSetValue(A,ix-1,ix-2,pu,INSERT_VALUES));
    
            /* west */
    
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      1200
            if (i>1) PetscCall(MatSetValue(A,ix-1,ix-jmax-2,pu,INSERT_VALUES));
    
          }
    
        }
    
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      10
        PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
    
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      10
        PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
    
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      2
        PetscFunctionReturn(PETSC_SUCCESS);
    
      }
    
      /*TEST
    
         test:
    
            requires: !single
    
      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 two-sided Krylov-Schur without calling EPSSetFromOptions (based on ex5.c).\n\n"
12			"The command line options are:\n"
13			" -m <m>, where <m> = number of grid subdivisions in each dimension.\n\n";
14
15			#include <slepceps.h>
16
17			/*
18			User-defined routines
19			*/
20			PetscErrorCode MatMarkovModel(PetscInt m,Mat A);
21
22		10	int main(int argc,char **argv)
23			{
24		10	Mat A; /* operator matrix */
25		10	EPS eps; /* eigenproblem solver context */
26		10	PetscReal tol=1000*PETSC_MACHINE_EPSILON;
27		10	PetscInt N,m=15,nev;
28
29	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	10	PetscFunctionBeginUser;
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.	10	PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
31
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.	10	PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL));
33		10	N = m*(m+1)/2;
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.	10	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nMarkov Model, N=%" PetscInt_FMT " (m=%" PetscInt_FMT ")\n\n",N,m));
35
36			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
37			Compute the operator matrix that defines the eigensystem, Ax=kx
38			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
39
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.	10	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
41	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(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,N));
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.	10	PetscCall(MatSetFromOptions(A));
43	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(MatMarkovModel(m,A));
44
45			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
46			Create the eigensolver and set various options
47			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
48
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.	10	PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
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.	10	PetscCall(EPSSetOperators(eps,A,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.	10	PetscCall(EPSSetProblemType(eps,EPS_NHEP));
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.	10	PetscCall(EPSSetTolerances(eps,tol,PETSC_CURRENT));
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.	10	PetscCall(EPSSetDimensions(eps,4,PETSC_DETERMINE,PETSC_DETERMINE));
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.	10	PetscCall(EPSSetWhichEigenpairs(eps,EPS_LARGEST_REAL));
55	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(EPSSetTwoSided(eps,PETSC_TRUE));
56
57			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
58			Solve the eigensystem
59			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
60
61	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(EPSSolve(eps));
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.	10	PetscCall(EPSGetDimensions(eps,&nev,NULL,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.	10	PetscCall(PetscPrintf(PETSC_COMM_WORLD," Number of requested eigenvalues: %" PetscInt_FMT "\n",nev));
64
65			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
66			Display solution and clean up
67			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
68
69	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(EPSErrorView(eps,EPS_ERROR_RELATIVE,NULL));
70	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(EPSDestroy(&eps));
71	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(MatDestroy(&A));
72	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.	10	PetscCall(SlepcFinalize());
73			return 0;
74			}
75
76		10	PetscErrorCode MatMarkovModel(PetscInt m,Mat A)
77			{
78		10	const PetscReal cst = 0.5/(PetscReal)(m-1);
79		10	PetscReal pd,pu;
80		10	PetscInt Istart,Iend,i,j,jmax,ix=0;
81
82	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	10	PetscFunctionBeginUser;
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.	10	PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
84	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	160	for (i=1;i<=m;i++) {
85		150	jmax = m-i+1;
86	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	1350	for (j=1;j<=jmax;j++) {
87		1200	ix = ix + 1;
88	2/4 ✓ Branch 0 taken 10 times. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✓ Branch 3 taken 10 times.	1200	if (ix-1<Istart \|\| ix>Iend) continue; /* compute only owned rows */
89	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	1200	if (j!=jmax) {
90		1050	pd = cst*(PetscReal)(i+j-1);
91			/* north */
92	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.	1050	if (i==1) PetscCall(MatSetValue(A,ix-1,ix,2*pd,INSERT_VALUES));
93	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.	910	else PetscCall(MatSetValue(A,ix-1,ix,pd,INSERT_VALUES));
94			/* east */
95	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.	1050	if (j==1) PetscCall(MatSetValue(A,ix-1,ix+jmax-1,2*pd,INSERT_VALUES));
96	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.	910	else PetscCall(MatSetValue(A,ix-1,ix+jmax-1,pd,INSERT_VALUES));
97			}
98			/* south */
99		1200	pu = 0.5 - cst*(PetscReal)(i+j-3);
100	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.	1200	if (j>1) PetscCall(MatSetValue(A,ix-1,ix-2,pu,INSERT_VALUES));
101			/* west */
102	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.	1200	if (i>1) PetscCall(MatSetValue(A,ix-1,ix-jmax-2,pu,INSERT_VALUES));
103			}
104			}
105	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(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
106	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(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
107	5/12 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✓ Branch 3 taken 2 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✓ Branch 6 taken 2 times. ✗ Branch 7 not taken. ✗ Branch 8 not taken. ✓ Branch 9 taken 2 times. ✗ Branch 10 not taken. ✗ Branch 11 not taken.	2	PetscFunctionReturn(PETSC_SUCCESS);
108			}
109
110			/*TEST
111
112			test:
113			requires: !single
114
115			TEST*/
116

Function (Line)	Call count	Block coverage
MatMarkovModel (line 76)	called 10 times	82.0%
main (line 22)	called 10 times	83.0%