xref: /petsc/src/mat/tests/ex61.c (revision b122ec5aa1bd4469eb4e0673542fb7de3f411254)
1c4762a1bSJed Brown 
2c4762a1bSJed Brown static char help[] = "Tests MatSeq(B)AIJSetColumnIndices().\n\n";
3c4762a1bSJed Brown 
4c4762a1bSJed Brown #include <petscmat.h>
5c4762a1bSJed Brown 
6c4762a1bSJed Brown /*
7c4762a1bSJed Brown       Generate the following matrix:
8c4762a1bSJed Brown 
9c4762a1bSJed Brown          1 0 3
10c4762a1bSJed Brown          1 2 3
11c4762a1bSJed Brown          0 0 3
12c4762a1bSJed Brown */
13c4762a1bSJed Brown int main(int argc,char **args)
14c4762a1bSJed Brown {
15c4762a1bSJed Brown   Mat            A;
16c4762a1bSJed Brown   PetscScalar    v;
17c4762a1bSJed Brown   PetscInt       i,j,rowlens[] = {2,3,1},cols[] = {0,2,0,1,2,2};
18c4762a1bSJed Brown   PetscBool      flg;
19c4762a1bSJed Brown 
20*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscInitialize(&argc,&args,(char*)0,help));
215f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscOptionsHasName(NULL,NULL,"-baij",&flg));
22c4762a1bSJed Brown   if (flg) {
235f80ce2aSJacob Faibussowitsch     CHKERRQ(MatCreateSeqBAIJ(PETSC_COMM_WORLD,1,3,3,0,rowlens,&A));
245f80ce2aSJacob Faibussowitsch     CHKERRQ(MatSeqBAIJSetColumnIndices(A,cols));
25c4762a1bSJed Brown   } else {
265f80ce2aSJacob Faibussowitsch     CHKERRQ(MatCreateSeqAIJ(PETSC_COMM_WORLD,3,3,0,rowlens,&A));
275f80ce2aSJacob Faibussowitsch     CHKERRQ(MatSeqAIJSetColumnIndices(A,cols));
28c4762a1bSJed Brown   }
29c4762a1bSJed Brown 
30c4762a1bSJed Brown   i    = 0; j = 0; v = 1.0;
315f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
32c4762a1bSJed Brown   i    = 0; j = 2; v = 3.0;
335f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
34c4762a1bSJed Brown 
35c4762a1bSJed Brown   i    = 1; j = 0; v = 1.0;
365f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
37c4762a1bSJed Brown   i    = 1; j = 1; v = 2.0;
385f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
39c4762a1bSJed Brown   i    = 1; j = 2; v = 3.0;
405f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
41c4762a1bSJed Brown 
42c4762a1bSJed Brown   i    = 2; j = 2; v = 3.0;
435f80ce2aSJacob Faibussowitsch   CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES));
44c4762a1bSJed Brown 
455f80ce2aSJacob Faibussowitsch   CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
465f80ce2aSJacob Faibussowitsch   CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
475f80ce2aSJacob Faibussowitsch   CHKERRQ(MatView(A,PETSC_VIEWER_STDOUT_WORLD));
48c4762a1bSJed Brown 
495f80ce2aSJacob Faibussowitsch   CHKERRQ(MatDestroy(&A));
50*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscFinalize());
51*b122ec5aSJacob Faibussowitsch   return 0;
52c4762a1bSJed Brown }
53c4762a1bSJed Brown 
54c4762a1bSJed Brown /*TEST
55c4762a1bSJed Brown 
56c4762a1bSJed Brown    test:
57c4762a1bSJed Brown 
58c4762a1bSJed Brown    test:
59c4762a1bSJed Brown       suffix: 2
60c4762a1bSJed Brown       args: -baij
61c4762a1bSJed Brown 
62c4762a1bSJed Brown TEST*/
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