xref: /petsc/src/mat/tests/ex100.c (revision ffa8c5705e8ab2cf85ee1d14dbe507a6e2eb5283)
1 
2 static char help[] = "Tests various routines in MatMAIJ format.\n";
3 
4 #include <petscmat.h>
5 #define IMAX 15
6 int main(int argc,char **args)
7 {
8   Mat            A,B,MA;
9   PetscViewer    fd;
10   char           file[PETSC_MAX_PATH_LEN];
11   PetscInt       m,n,M,N,dof=1;
12   PetscMPIInt    rank,size;
13   PetscBool      flg;
14 
15   PetscCall(PetscInitialize(&argc,&args,(char*)0,help));
16   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank));
17   PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size));
18 
19   /* Load aij matrix A */
20   PetscCall(PetscOptionsGetString(NULL,NULL,"-f",file,sizeof(file),&flg));
21   PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_USER,"Must indicate binary file with the -f option");
22   PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&fd));
23   PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
24   PetscCall(MatLoad(A,fd));
25   PetscCall(PetscViewerDestroy(&fd));
26 
27   /* Get dof, then create maij matrix MA */
28   PetscCall(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL));
29   PetscCall(MatCreateMAIJ(A,dof,&MA));
30   PetscCall(MatGetLocalSize(MA,&m,&n));
31   PetscCall(MatGetSize(MA,&M,&N));
32 
33   if (size == 1) {
34     PetscCall(MatConvert(MA,MATSEQAIJ,MAT_INITIAL_MATRIX,&B));
35   } else {
36     PetscCall(MatConvert(MA,MATMPIAIJ,MAT_INITIAL_MATRIX,&B));
37   }
38 
39   /* Test MatMult() */
40   PetscCall(MatMultEqual(MA,B,10,&flg));
41   PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error: MatMul() for MAIJ matrix");
42   /* Test MatMultAdd() */
43   PetscCall(MatMultAddEqual(MA,B,10,&flg));
44   PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error: MatMulAdd() for MAIJ matrix");
45 
46   /* Test MatMultTranspose() */
47   PetscCall(MatMultTransposeEqual(MA,B,10,&flg));
48   PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error: MatMulAdd() for MAIJ matrix");
49 
50   /* Test MatMultTransposeAdd() */
51   PetscCall(MatMultTransposeAddEqual(MA,B,10,&flg));
52   PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_CONV_FAILED,"Error: MatMulTransposeAdd() for MAIJ matrix");
53 
54   PetscCall(MatDestroy(&MA));
55   PetscCall(MatDestroy(&A));
56   PetscCall(MatDestroy(&B));
57   PetscCall(PetscFinalize());
58   return 0;
59 }
60 
61 /*TEST
62 
63    build:
64       requires: !complex
65 
66    test:
67       nsize: {{1 3}}
68       requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
69       args: -f ${DATAFILESPATH}/matrices/arco1 -dof {{1 2 3 4 5 6 8 9 16}} -viewer_binary_skip_info
70 
71 TEST*/
72