GCC Code Coverage Report

Directory:	./
File:	src/eps/tests/test41.c
Date:	2025-10-03 04:28:47

	Exec	Total	Coverage
Lines:	50	50	100.0%
Functions:	1	1	100.0%
Branches:	162	242	66.9%

  
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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 interface to external package EVSL.\n\n"
    
        "This is based on ex3.c. The command line options are:\n"
    
        "  -n <n>, where <n> = number of grid subdivisions in x dimension.\n"
    
        "  -m <m>, where <m> = number of grid subdivisions in y dimension.\n\n";
    
      #include <slepceps.h>
    
      3
      int main(int argc,char **argv)
    
      {
    
      3
        Mat            A;           /* matrix */
    
      3
        EPS            eps;         /* eigenproblem solver context */
    
      3
        PetscInt       N,n=20,m,Istart,Iend,II,i,j,nslice;
    
      3
        PetscReal      a,b,ra,rb;
    
      3
        PetscBool      flag;
    
      3
        EPSEVSLDamping damping;
    
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      3
        PetscFunctionBeginUser;
    
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      3
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
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      3
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
    
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      3
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,&flag));
    
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      3
        if (!flag) m=n;
    
      3
        N = n*m;
    
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      3
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nStandard eigenproblem with EVSL, N=%" PetscInt_FMT " (%" PetscInt_FMT "x%" PetscInt_FMT " grid)\n\n",N,n,m));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
           Compute the matrices that define the eigensystem, Ax=kBx
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      3
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
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      3
        PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,N));
    
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      3
        PetscCall(MatSetFromOptions(A));
    
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      3
        PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
    
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      1203
        for (II=Istart;II<Iend;II++) {
    
      1200
          i = II/n; j = II-i*n;
    
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      1200
          if (i>0) PetscCall(MatSetValue(A,II,II-n,-1.0,INSERT_VALUES));
    
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      1200
          if (i<m-1) PetscCall(MatSetValue(A,II,II+n,-1.0,INSERT_VALUES));
    
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      1200
          if (j>0) PetscCall(MatSetValue(A,II,II-1,-1.0,INSERT_VALUES));
    
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      1200
          if (j<n-1) PetscCall(MatSetValue(A,II,II+1,-1.0,INSERT_VALUES));
    
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      1200
          PetscCall(MatSetValue(A,II,II,4.0,INSERT_VALUES));
    
        }
    
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      3
        PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
    
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      3
        PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                      Create the eigensolver and set various options
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      3
        PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
    
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      3
        PetscCall(EPSSetOperators(eps,A,NULL));
    
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      3
        PetscCall(EPSSetProblemType(eps,EPS_HEP));
    
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      3
        PetscCall(EPSSetType(eps,EPSEVSL));
    
        /*
    
           Set several options
    
        */
    
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      3
        PetscCall(EPSSetInterval(eps,1.3,1.44));
    
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      3
        PetscCall(EPSEVSLSetRange(eps,0,8));
    
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      3
        PetscCall(EPSEVSLSetSlices(eps,3));
    
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      3
        PetscCall(EPSEVSLSetDamping(eps,EPS_EVSL_DAMPING_SIGMA));
    
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      3
        PetscCall(EPSEVSLSetDOSParameters(eps,EPS_EVSL_DOS_KPM,50,450,PETSC_CURRENT,PETSC_CURRENT));
    
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        PetscCall(EPSEVSLSetPolParameters(eps,4000,0.85));
    
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      3
        PetscCall(EPSSetFromOptions(eps));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                 Compute all eigenvalues in interval and display info
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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        PetscCall(EPSSolve(eps));
    
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      3
        PetscCall(EPSEVSLGetSlices(eps,&nslice));
    
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        PetscCall(EPSGetInterval(eps,&a,&b));
    
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      3
        PetscCall(EPSEVSLGetRange(eps,&ra,&rb));
    
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      3
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," EVSL: solving interval [%g,%g] with %" PetscInt_FMT " slices (spectral range [%g,%g])\n",a,b,nslice,ra,rb));
    
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      3
        PetscCall(EPSEVSLGetDamping(eps,&damping));
    
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      3
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," EVSL: damping type is %s\n",EPSEVSLDampings[damping]));
    
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      3
        PetscCall(EPSView(eps,NULL));
    
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      3
        PetscCall(EPSErrorView(eps,EPS_ERROR_ABSOLUTE,NULL));
    
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      3
        PetscCall(EPSDestroy(&eps));
    
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      3
        PetscCall(MatDestroy(&A));
    
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      3
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      /*TEST
    
         build:
    
            requires: evsl
    
         test:
    
            requires: evsl
    
            args: -eps_evsl_damping none
    
            filter: grep -v ncv
    
      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 interface to external package EVSL.\n\n"
12			"This is based on ex3.c. The command line options are:\n"
13			" -n <n>, where <n> = number of grid subdivisions in x dimension.\n"
14			" -m <m>, where <m> = number of grid subdivisions in y dimension.\n\n";
15
16			#include <slepceps.h>
17
18		3	int main(int argc,char **argv)
19			{
20		3	Mat A; /* matrix */
21		3	EPS eps; /* eigenproblem solver context */
22		3	PetscInt N,n=20,m,Istart,Iend,II,i,j,nslice;
23		3	PetscReal a,b,ra,rb;
24		3	PetscBool flag;
25		3	EPSEVSLDamping damping;
26
27	1/2 ✓ Branch 0 taken 1 times. ✗ Branch 1 not taken.	3	PetscFunctionBeginUser;
28	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
29
30	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
31	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,&flag));
32	1/2 ✓ Branch 0 taken 3 times. ✗ Branch 1 not taken.	3	if (!flag) m=n;
33		3	N = n*m;
34	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nStandard eigenproblem with EVSL, N=%" PetscInt_FMT " (%" PetscInt_FMT "x%" PetscInt_FMT " grid)\n\n",N,n,m));
35
36			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
37			Compute the matrices that define the eigensystem, Ax=kBx
38			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
39
40	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
41	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,N));
42	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatSetFromOptions(A));
43
44	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
45	2/2 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 3 times.	1203	for (II=Istart;II<Iend;II++) {
46		1200	i = II/n; j = II-i*n;
47	6/8 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 3 times. ✓ Branch 2 taken 1 times. ✓ Branch 3 taken 2 times. ✓ Branch 4 taken 1 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 1 times.	1200	if (i>0) PetscCall(MatSetValue(A,II,II-n,-1.0,INSERT_VALUES));
48	6/8 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 3 times. ✓ Branch 2 taken 1 times. ✓ Branch 3 taken 2 times. ✓ Branch 4 taken 1 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 1 times.	1200	if (i<m-1) PetscCall(MatSetValue(A,II,II+n,-1.0,INSERT_VALUES));
49	6/8 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 3 times. ✓ Branch 2 taken 1 times. ✓ Branch 3 taken 2 times. ✓ Branch 4 taken 1 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 1 times.	1200	if (j>0) PetscCall(MatSetValue(A,II,II-1,-1.0,INSERT_VALUES));
50	6/8 ✓ Branch 0 taken 3 times. ✓ Branch 1 taken 3 times. ✓ Branch 2 taken 1 times. ✓ Branch 3 taken 2 times. ✓ Branch 4 taken 1 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 1 times.	1200	if (j<n-1) PetscCall(MatSetValue(A,II,II+1,-1.0,INSERT_VALUES));
51	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	1200	PetscCall(MatSetValue(A,II,II,4.0,INSERT_VALUES));
52			}
53
54	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
55	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
56
57			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
58			Create the eigensolver and set various options
59			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
60
61	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSCreate(PETSC_COMM_WORLD,&eps));
62	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSetOperators(eps,A,NULL));
63	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSetProblemType(eps,EPS_HEP));
64	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSetType(eps,EPSEVSL));
65
66			/*
67			Set several options
68			*/
69	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSetInterval(eps,1.3,1.44));
70	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLSetRange(eps,0,8));
71	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLSetSlices(eps,3));
72	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLSetDamping(eps,EPS_EVSL_DAMPING_SIGMA));
73	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLSetDOSParameters(eps,EPS_EVSL_DOS_KPM,50,450,PETSC_CURRENT,PETSC_CURRENT));
74	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLSetPolParameters(eps,4000,0.85));
75	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSetFromOptions(eps));
76
77			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
78			Compute all eigenvalues in interval and display info
79			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
80
81	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSSolve(eps));
82	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLGetSlices(eps,&nslice));
83	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSGetInterval(eps,&a,&b));
84	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLGetRange(eps,&ra,&rb));
85	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(PetscPrintf(PETSC_COMM_WORLD," EVSL: solving interval [%g,%g] with %" PetscInt_FMT " slices (spectral range [%g,%g])\n",a,b,nslice,ra,rb));
86	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSEVSLGetDamping(eps,&damping));
87	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(PetscPrintf(PETSC_COMM_WORLD," EVSL: damping type is %s\n",EPSEVSLDampings[damping]));
88
89	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSView(eps,NULL));
90	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSErrorView(eps,EPS_ERROR_ABSOLUTE,NULL));
91
92	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(EPSDestroy(&eps));
93	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	3	PetscCall(MatDestroy(&A));
94	2/6 ✓ Branch 0 taken 1 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken.	3	PetscCall(SlepcFinalize());
95			return 0;
96			}
97
98			/*TEST
99
100			build:
101			requires: evsl
102
103			test:
104			requires: evsl
105			args: -eps_evsl_damping none
106			filter: grep -v ncv
107
108			TEST*/
109