xref: /petsc/src/ksp/pc/tests/ex1.c (revision b122ec5aa1bd4469eb4e0673542fb7de3f411254)
1c4762a1bSJed Brown 
2c4762a1bSJed Brown static char help[] = "Tests the creation of a PC context.\n\n";
3c4762a1bSJed Brown 
4c4762a1bSJed Brown #include <petscpc.h>
5c4762a1bSJed Brown 
6c4762a1bSJed Brown int main(int argc,char **args)
7c4762a1bSJed Brown {
8c4762a1bSJed Brown   PC             pc;
9c4762a1bSJed Brown   PetscInt       n = 5;
10c4762a1bSJed Brown   Mat            mat;
11c4762a1bSJed Brown 
12*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscInitialize(&argc,&args,(char*)0,help));
135f80ce2aSJacob Faibussowitsch   CHKERRQ(PCCreate(PETSC_COMM_WORLD,&pc));
145f80ce2aSJacob Faibussowitsch   CHKERRQ(PCSetType(pc,PCNONE));
15c4762a1bSJed Brown 
16c4762a1bSJed Brown   /* Vector and matrix must be set before calling PCSetUp */
175f80ce2aSJacob Faibussowitsch   CHKERRQ(MatCreateSeqAIJ(PETSC_COMM_SELF,n,n,3,NULL,&mat));
185f80ce2aSJacob Faibussowitsch   CHKERRQ(MatAssemblyBegin(mat,MAT_FINAL_ASSEMBLY));
195f80ce2aSJacob Faibussowitsch   CHKERRQ(MatAssemblyEnd(mat,MAT_FINAL_ASSEMBLY));
205f80ce2aSJacob Faibussowitsch   CHKERRQ(PCSetOperators(pc,mat,mat));
215f80ce2aSJacob Faibussowitsch   CHKERRQ(PCSetUp(pc));
225f80ce2aSJacob Faibussowitsch   CHKERRQ(MatDestroy(&mat));
235f80ce2aSJacob Faibussowitsch   CHKERRQ(PCDestroy(&pc));
24*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscFinalize());
25*b122ec5aSJacob Faibussowitsch   return 0;
26c4762a1bSJed Brown }
27c4762a1bSJed Brown 
28c4762a1bSJed Brown /*TEST
29c4762a1bSJed Brown 
30c4762a1bSJed Brown    test:
31c4762a1bSJed Brown 
32c4762a1bSJed Brown TEST*/
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