GCC Code Coverage Report

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

	Exec	Total	Coverage
Lines:	52	52	100.0%
Functions:	1	1	100.0%
Branches:	146	226	64.6%

  
      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[] = "Illustrates use of MFNSetBV().\n\n"
    
        "The command line options are:\n"
    
        "  -t <sval>, where <sval> = scalar value that multiplies the argument.\n"
    
        "  -file <filename>, where <filename> = matrix file in PETSc binary form.\n\n";
    
      #include <slepcmfn.h>
    
      8
      int main(int argc,char **argv)
    
      {
    
      8
        Mat                A;           /* problem matrix */
    
      8
        MFN                mfn;
    
      8
        FN                 f;
    
      8
        BV                 V;
    
      8
        PetscInt           k=8;
    
      8
        PetscReal          norm;
    
      8
        PetscScalar        t=2.0;
    
      8
        Vec                v,y;
    
      8
        PetscViewer        viewer;
    
      8
        PetscBool          flg;
    
      8
        char               filename[PETSC_MAX_PATH_LEN];
    
      8
        MFNConvergedReason reason;
    
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      8
        PetscFunctionBeginUser;
    
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      8
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
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      8
        PetscCall(PetscOptionsGetScalar(NULL,NULL,"-t",&t,NULL));
    
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      8
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-k",&k,NULL));
    
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      8
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nMatrix exponential y=exp(t*A)*e, loaded from file\n\n"));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                      Load matrix A from binary file
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      8
        PetscCall(PetscOptionsGetString(NULL,NULL,"-file",filename,sizeof(filename),&flg));
    
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      8
        PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_USER_INPUT,"Must indicate a file name with the -file option");
    
      #if defined(PETSC_USE_COMPLEX)
    
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      3
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," Reading COMPLEX matrix from a binary file...\n"));
    
      #else
    
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      5
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," Reading REAL matrix from a binary file...\n"));
    
      #endif
    
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      8
        PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD,filename,FILE_MODE_READ,&viewer));
    
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      8
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
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      8
        PetscCall(MatSetFromOptions(A));
    
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      8
        PetscCall(MatLoad(A,viewer));
    
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      8
        PetscCall(PetscViewerDestroy(&viewer));
    
        /* set v = ones(n,1) */
    
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      8
        PetscCall(MatCreateVecs(A,&v,&y));
    
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      8
        PetscCall(VecSet(v,1.0));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                              Create the BV object
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      8
        PetscCall(BVCreate(PETSC_COMM_WORLD,&V));
    
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      8
        PetscCall(PetscObjectSetName((PetscObject)V,"V"));
    
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      8
        PetscCall(BVSetSizesFromVec(V,v,k));
    
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      8
        PetscCall(BVSetFromOptions(V));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                      Create the solver and set various options
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      8
        PetscCall(MFNCreate(PETSC_COMM_WORLD,&mfn));
    
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      8
        PetscCall(MFNSetOperator(mfn,A));
    
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      8
        PetscCall(MFNSetBV(mfn,V));
    
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      8
        PetscCall(MFNGetFN(mfn,&f));
    
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      8
        PetscCall(FNSetType(f,FNEXP));
    
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      8
        PetscCall(FNSetScale(f,t,1.0));
    
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      8
        PetscCall(MFNSetDimensions(mfn,k));
    
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      8
        PetscCall(MFNSetFromOptions(mfn));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                            Solve the problem, y=exp(t*A)*v
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
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      8
        PetscCall(MFNSolve(mfn,v,y));
    
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      8
        PetscCall(MFNGetConvergedReason(mfn,&reason));
    
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      8
        PetscCheck(reason>=0,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Solver did not converge");
    
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      8
        PetscCall(VecNorm(y,NORM_2,&norm));
    
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      8
        PetscCall(PetscPrintf(PETSC_COMM_WORLD," Computed vector at time t=%.4g has norm %g\n\n",(double)PetscRealPart(t),(double)norm));
    
        /*
    
           Free work space
    
        */
    
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      8
        PetscCall(BVDestroy(&V));
    
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      8
        PetscCall(MFNDestroy(&mfn));
    
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      8
        PetscCall(MatDestroy(&A));
    
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      8
        PetscCall(VecDestroy(&v));
    
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      8
        PetscCall(VecDestroy(&y));
    
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      8
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      /*TEST
    
         test:
    
            suffix: 1
    
            args: -file ${SLEPC_DIR}/share/slepc/datafiles/matrices/bfw62b.petsc -k 12
    
            requires: double !complex !defined(PETSC_USE_64BIT_INDICES)
    
         test:
    
            suffix: 2
    
            args: -file ${DATAFILESPATH}/matrices/complex/qc324.petsc -k 12
    
            requires: double complex datafilespath !defined(PETSC_USE_64BIT_INDICES)
    
      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[] = "Illustrates use of MFNSetBV().\n\n"
12			"The command line options are:\n"
13			" -t <sval>, where <sval> = scalar value that multiplies the argument.\n"
14			" -file <filename>, where <filename> = matrix file in PETSc binary form.\n\n";
15
16			#include <slepcmfn.h>
17
18		8	int main(int argc,char **argv)
19			{
20		8	Mat A; /* problem matrix */
21		8	MFN mfn;
22		8	FN f;
23		8	BV V;
24		8	PetscInt k=8;
25		8	PetscReal norm;
26		8	PetscScalar t=2.0;
27		8	Vec v,y;
28		8	PetscViewer viewer;
29		8	PetscBool flg;
30		8	char filename[PETSC_MAX_PATH_LEN];
31		8	MFNConvergedReason reason;
32
33	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	8	PetscFunctionBeginUser;
34	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
35
36	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscOptionsGetScalar(NULL,NULL,"-t",&t,NULL));
37	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscOptionsGetInt(NULL,NULL,"-k",&k,NULL));
38	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nMatrix exponential y=exp(tA)e, loaded from file\n\n"));
39
40			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
41			Load matrix A from binary file
42			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
43
44	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscOptionsGetString(NULL,NULL,"-file",filename,sizeof(filename),&flg));
45	1/4 ✗ Branch 0 not taken. ✓ Branch 1 taken 8 times. ✗ Branch 2 not taken. ✗ Branch 3 not taken.	8	PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_USER_INPUT,"Must indicate a file name with the -file option");
46
47			#if defined(PETSC_USE_COMPLEX)
48	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," Reading COMPLEX matrix from a binary file...\n"));
49			#else
50	4/6 ✓ Branch 0 taken 1 times. ✓ Branch 1 taken 4 times. ✓ Branch 2 taken 1 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 1 times.	5	PetscCall(PetscPrintf(PETSC_COMM_WORLD," Reading REAL matrix from a binary file...\n"));
51			#endif
52	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD,filename,FILE_MODE_READ,&viewer));
53	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
54	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MatSetFromOptions(A));
55	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MatLoad(A,viewer));
56	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscViewerDestroy(&viewer));
57
58			/* set v = ones(n,1) */
59	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MatCreateVecs(A,&v,&y));
60	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(VecSet(v,1.0));
61
62			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
63			Create the BV object
64			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
65
66	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(BVCreate(PETSC_COMM_WORLD,&V));
67	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscObjectSetName((PetscObject)V,"V"));
68	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(BVSetSizesFromVec(V,v,k));
69	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(BVSetFromOptions(V));
70
71			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
72			Create the solver and set various options
73			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
74
75	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNCreate(PETSC_COMM_WORLD,&mfn));
76	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNSetOperator(mfn,A));
77	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNSetBV(mfn,V));
78	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNGetFN(mfn,&f));
79	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(FNSetType(f,FNEXP));
80	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(FNSetScale(f,t,1.0));
81	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNSetDimensions(mfn,k));
82	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNSetFromOptions(mfn));
83
84			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
85			Solve the problem, y=exp(tA)v
86			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
87
88	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNSolve(mfn,v,y));
89	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNGetConvergedReason(mfn,&reason));
90	1/4 ✗ Branch 0 not taken. ✓ Branch 1 taken 8 times. ✗ Branch 2 not taken. ✗ Branch 3 not taken.	8	PetscCheck(reason>=0,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Solver did not converge");
91	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(VecNorm(y,NORM_2,&norm));
92	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(PetscPrintf(PETSC_COMM_WORLD," Computed vector at time t=%.4g has norm %g\n\n",(double)PetscRealPart(t),(double)norm));
93
94			/*
95			Free work space
96			*/
97	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(BVDestroy(&V));
98	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MFNDestroy(&mfn));
99	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(MatDestroy(&A));
100	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(VecDestroy(&v));
101	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	8	PetscCall(VecDestroy(&y));
102	3/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 1 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken.	8	PetscCall(SlepcFinalize());
103			return 0;
104			}
105
106			/*TEST
107
108			test:
109			suffix: 1
110			args: -file ${SLEPC_DIR}/share/slepc/datafiles/matrices/bfw62b.petsc -k 12
111			requires: double !complex !defined(PETSC_USE_64BIT_INDICES)
112
113			test:
114			suffix: 2
115			args: -file ${DATAFILESPATH}/matrices/complex/qc324.petsc -k 12
116			requires: double complex datafilespath !defined(PETSC_USE_64BIT_INDICES)
117
118			TEST*/
119