1 static char help[] = "Tests MatLoad() MatView() for MPIBAIJ.\n\n";
2
3 #include <petscmat.h>
4
main(int argc,char ** args)5 int main(int argc, char **args)
6 {
7 Mat A, B;
8 char file[PETSC_MAX_PATH_LEN];
9 PetscBool flg;
10 PetscViewer fd;
11
12 PetscFunctionBeginUser;
13 PetscCall(PetscInitialize(&argc, &args, NULL, help));
14 PetscCall(PetscOptionsGetString(NULL, NULL, "-f", file, sizeof(file), &flg));
15 PetscCheck(flg, PETSC_COMM_WORLD, PETSC_ERR_USER, "Must indicate binary file with the -f option");
16
17 /*
18 Open binary file. Note that we use FILE_MODE_READ to indicate
19 reading from this file.
20 */
21 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file, FILE_MODE_READ, &fd));
22
23 /*
24 Load the matrix; then destroy the viewer.
25 */
26 PetscCall(MatCreate(PETSC_COMM_WORLD, &A));
27 PetscCall(MatSetFromOptions(A));
28 PetscCall(MatLoad(A, fd));
29 PetscCall(PetscViewerDestroy(&fd));
30
31 /*
32 Open another binary file. Note that we use FILE_MODE_WRITE to indicate writing to the file
33 */
34 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, "fileoutput", FILE_MODE_WRITE, &fd));
35 PetscCall(PetscViewerBinarySetFlowControl(fd, 3));
36 /*
37 Save the matrix and vector; then destroy the viewer.
38 */
39 PetscCall(MatView(A, fd));
40 PetscCall(PetscViewerDestroy(&fd));
41
42 /* load the new matrix */
43 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, "fileoutput", FILE_MODE_READ, &fd));
44 PetscCall(MatCreate(PETSC_COMM_WORLD, &B));
45 PetscCall(MatSetFromOptions(B));
46 PetscCall(MatLoad(B, fd));
47 PetscCall(PetscViewerDestroy(&fd));
48
49 PetscCall(MatEqual(A, B, &flg));
50 if (flg) {
51 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Matrices are equal\n"));
52 } else {
53 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Matrices are not equal\n"));
54 }
55
56 PetscCall(MatDestroy(&A));
57 PetscCall(MatDestroy(&B));
58 PetscCall(PetscFinalize());
59 return 0;
60 }
61
62 /*TEST
63
64 test:
65 nsize: 3
66 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
67 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info
68
69 test:
70 suffix: 2
71 nsize: 5
72 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
73 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info
74
75 test:
76 suffix: 3
77 nsize: 7
78 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
79 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info
80
81 test:
82 suffix: 4
83 nsize: 3
84 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
85 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info -mat_type baij
86
87 test:
88 suffix: 5
89 nsize: 5
90 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
91 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info -mat_type baij
92
93 test:
94 suffix: 6
95 nsize: 7
96 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
97 args: -f ${DATAFILESPATH}/matrices/cfd.2.100 -mat_view ascii::ascii_info -mat_type baij
98
99 TEST*/
100