1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests MatILUFactorSymbolic() on matrix with missing diagonal.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscmat.h> 5*c4762a1bSJed Brown #include <petscpc.h> 6*c4762a1bSJed Brown 7*c4762a1bSJed Brown int main(int argc,char **args) 8*c4762a1bSJed Brown { 9*c4762a1bSJed Brown Mat C,A; 10*c4762a1bSJed Brown PetscInt i,j; 11*c4762a1bSJed Brown PetscErrorCode ierr; 12*c4762a1bSJed Brown PetscScalar v; 13*c4762a1bSJed Brown PC pc; 14*c4762a1bSJed Brown Vec xtmp; 15*c4762a1bSJed Brown 16*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 17*c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD,&C);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,3,3);CHKERRQ(ierr); 19*c4762a1bSJed Brown ierr = MatSetFromOptions(C);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = MatSetUp(C);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = VecCreateSeq(PETSC_COMM_WORLD,3,&xtmp);CHKERRQ(ierr); 22*c4762a1bSJed Brown i = 0; j = 0; v = 4; 23*c4762a1bSJed Brown ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr); 24*c4762a1bSJed Brown i = 0; j = 2; v = 1; 25*c4762a1bSJed Brown ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr); 26*c4762a1bSJed Brown i = 1; j = 0; v = 1; 27*c4762a1bSJed Brown ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr); 28*c4762a1bSJed Brown i = 1; j = 1; v = 4; 29*c4762a1bSJed Brown ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr); 30*c4762a1bSJed Brown i = 2; j = 1; v = 1; 31*c4762a1bSJed Brown ierr = MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES);CHKERRQ(ierr); 32*c4762a1bSJed Brown 33*c4762a1bSJed Brown ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 34*c4762a1bSJed Brown ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 35*c4762a1bSJed Brown 36*c4762a1bSJed Brown ierr = MatView(C,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 37*c4762a1bSJed Brown ierr = PCCreate(PETSC_COMM_WORLD,&pc);CHKERRQ(ierr); 38*c4762a1bSJed Brown ierr = PCSetFromOptions(pc);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = PCSetOperators(pc,C,C);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = PCSetUp(pc);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = PCFactorGetMatrix(pc,&A);CHKERRQ(ierr); 42*c4762a1bSJed Brown ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 43*c4762a1bSJed Brown 44*c4762a1bSJed Brown ierr = PCDestroy(&pc);CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = VecDestroy(&xtmp);CHKERRQ(ierr); 46*c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 47*c4762a1bSJed Brown 48*c4762a1bSJed Brown ierr = PetscFinalize(); 49*c4762a1bSJed Brown return ierr; 50*c4762a1bSJed Brown } 51*c4762a1bSJed Brown 52*c4762a1bSJed Brown 53