1 2 static char help[] = "Tests the creation of a PC context.\n\n"; 3 4 #include <petscpc.h> 5 6 int main(int argc,char **args) 7 { 8 PC pc; 9 PetscErrorCode ierr; 10 PetscInt n = 5; 11 Mat mat; 12 13 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 14 CHKERRQ(PCCreate(PETSC_COMM_WORLD,&pc)); 15 CHKERRQ(PCSetType(pc,PCNONE)); 16 17 /* Vector and matrix must be set before calling PCSetUp */ 18 CHKERRQ(MatCreateSeqAIJ(PETSC_COMM_SELF,n,n,3,NULL,&mat)); 19 CHKERRQ(MatAssemblyBegin(mat,MAT_FINAL_ASSEMBLY)); 20 CHKERRQ(MatAssemblyEnd(mat,MAT_FINAL_ASSEMBLY)); 21 CHKERRQ(PCSetOperators(pc,mat,mat)); 22 CHKERRQ(PCSetUp(pc)); 23 CHKERRQ(MatDestroy(&mat)); 24 CHKERRQ(PCDestroy(&pc)); 25 ierr = PetscFinalize(); 26 return ierr; 27 } 28 29 /*TEST 30 31 test: 32 33 TEST*/ 34