Actual source code: ex61.c
2: static char help[] = "Tests MatSeq(B)AIJSetColumnIndices().\n\n";
4: #include <petscmat.h>
6: /*
7: Generate the following matrix:
9: 1 0 3
10: 1 2 3
11: 0 0 3
12: */
13: int main(int argc,char **args)
14: {
15: Mat A;
16: PetscScalar v;
17: PetscInt i,j,rowlens[] = {2,3,1},cols[] = {0,2,0,1,2,2};
18: PetscBool flg;
20: PetscInitialize(&argc,&args,(char*)0,help);
21: PetscOptionsHasName(NULL,NULL,"-baij",&flg);
22: if (flg) {
23: MatCreateSeqBAIJ(PETSC_COMM_WORLD,1,3,3,0,rowlens,&A);
24: MatSeqBAIJSetColumnIndices(A,cols);
25: } else {
26: MatCreateSeqAIJ(PETSC_COMM_WORLD,3,3,0,rowlens,&A);
27: MatSeqAIJSetColumnIndices(A,cols);
28: }
30: i = 0; j = 0; v = 1.0;
31: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
32: i = 0; j = 2; v = 3.0;
33: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
35: i = 1; j = 0; v = 1.0;
36: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
37: i = 1; j = 1; v = 2.0;
38: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
39: i = 1; j = 2; v = 3.0;
40: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
42: i = 2; j = 2; v = 3.0;
43: MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES);
45: MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);
46: MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);
47: MatView(A,PETSC_VIEWER_STDOUT_WORLD);
49: MatDestroy(&A);
50: PetscFinalize();
51: return 0;
52: }
54: /*TEST
56: test:
58: test:
59: suffix: 2
60: args: -baij
62: TEST*/