1c4762a1bSJed Brown static char help[] = "Test MatMatMatMult\n\
2c4762a1bSJed Brown Reads PETSc matrix A B and C, then comput D=A*B*C \n\
3c4762a1bSJed Brown Input parameters include\n\
4c4762a1bSJed Brown -fA <input_file> -fB <input_file> -fC <input_file> \n\n";
5c4762a1bSJed Brown
6c4762a1bSJed Brown #include <petscmat.h>
7c4762a1bSJed Brown
main(int argc,char ** args)8d71ae5a4SJacob Faibussowitsch int main(int argc, char **args)
9d71ae5a4SJacob Faibussowitsch {
10c4762a1bSJed Brown Mat A, B, C, D, BC, ABC;
11c4762a1bSJed Brown PetscViewer fd;
12c4762a1bSJed Brown char file[3][PETSC_MAX_PATH_LEN];
13c4762a1bSJed Brown PetscBool flg;
14c4762a1bSJed Brown
15327415f7SBarry Smith PetscFunctionBeginUser;
16c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help));
17c4762a1bSJed Brown /* read matrices A, B and C */
189566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetString(NULL, NULL, "-fA", file[0], sizeof(file[0]), &flg));
1928b400f6SJacob Faibussowitsch PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fA options");
20c4762a1bSJed Brown
219566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetString(NULL, NULL, "-fB", file[1], sizeof(file[1]), &flg));
2228b400f6SJacob Faibussowitsch PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fB options");
23c4762a1bSJed Brown
249566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetString(NULL, NULL, "-fC", file[2], sizeof(file[2]), &flg));
2528b400f6SJacob Faibussowitsch PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fC options");
26c4762a1bSJed Brown
27c4762a1bSJed Brown /* Load matrices */
289566063dSJacob Faibussowitsch PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[0], FILE_MODE_READ, &fd));
299566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &A));
309566063dSJacob Faibussowitsch PetscCall(MatLoad(A, fd));
319566063dSJacob Faibussowitsch PetscCall(PetscViewerDestroy(&fd));
32c4762a1bSJed Brown
339566063dSJacob Faibussowitsch PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[1], FILE_MODE_READ, &fd));
349566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &B));
359566063dSJacob Faibussowitsch PetscCall(MatLoad(B, fd));
369566063dSJacob Faibussowitsch PetscCall(PetscViewerDestroy(&fd));
37c4762a1bSJed Brown
389566063dSJacob Faibussowitsch PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[2], FILE_MODE_READ, &fd));
399566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &C));
409566063dSJacob Faibussowitsch PetscCall(MatLoad(C, fd));
419566063dSJacob Faibussowitsch PetscCall(PetscViewerDestroy(&fd));
42c4762a1bSJed Brown
43c4762a1bSJed Brown /* Test MatMatMult() */
44fb842aefSJose E. Roman PetscCall(MatMatMult(B, C, MAT_INITIAL_MATRIX, PETSC_DETERMINE, &BC));
45fb842aefSJose E. Roman PetscCall(MatMatMult(A, BC, MAT_INITIAL_MATRIX, PETSC_DETERMINE, &ABC));
46c4762a1bSJed Brown
47fb842aefSJose E. Roman PetscCall(MatMatMatMult(A, B, C, MAT_INITIAL_MATRIX, PETSC_DETERMINE, &D));
48fb842aefSJose E. Roman PetscCall(MatMatMatMult(A, B, C, MAT_REUSE_MATRIX, PETSC_DETERMINE, &D));
499566063dSJacob Faibussowitsch /* PetscCall(MatView(D,PETSC_VIEWER_STDOUT_WORLD)); */
50c4762a1bSJed Brown
519566063dSJacob Faibussowitsch PetscCall(MatEqual(ABC, D, &flg));
5228b400f6SJacob Faibussowitsch PetscCheck(flg, PetscObjectComm((PetscObject)A), PETSC_ERR_ARG_INCOMP, "ABC != D");
53c4762a1bSJed Brown
549566063dSJacob Faibussowitsch PetscCall(MatDestroy(&ABC));
559566063dSJacob Faibussowitsch PetscCall(MatDestroy(&BC));
569566063dSJacob Faibussowitsch PetscCall(MatDestroy(&D));
579566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C));
589566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B));
599566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A));
609566063dSJacob Faibussowitsch PetscCall(PetscFinalize());
61b122ec5aSJacob Faibussowitsch return 0;
62c4762a1bSJed Brown }
63c4762a1bSJed Brown
64c4762a1bSJed Brown /*TEST
65c4762a1bSJed Brown
66c4762a1bSJed Brown test:
67dfd57a17SPierre Jolivet requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
68c4762a1bSJed Brown args: -fA ${DATAFILESPATH}/matrices/matmatmatmult/A.bin -fB ${DATAFILESPATH}/matrices/matmatmatmult/B.bin -fC ${DATAFILESPATH}/matrices/matmatmatmult/C.bin
69*3886731fSPierre Jolivet output_file: output/empty.out
70c4762a1bSJed Brown
71c4762a1bSJed Brown test:
72c4762a1bSJed Brown suffix: 2
73c4762a1bSJed Brown nsize: 3
74dfd57a17SPierre Jolivet requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
75c4762a1bSJed Brown args: -fA ${DATAFILESPATH}/matrices/matmatmatmult/A.bin -fB ${DATAFILESPATH}/matrices/matmatmatmult/B.bin -fC ${DATAFILESPATH}/matrices/matmatmatmult/C.bin
76*3886731fSPierre Jolivet output_file: output/empty.out
77c4762a1bSJed Brown
78c4762a1bSJed Brown TEST*/
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