1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests MatILUFactorSymbolic() on matrix with missing diagonal.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscmat.h> 5c4762a1bSJed Brown #include <petscpc.h> 6c4762a1bSJed Brown 7c4762a1bSJed Brown int main(int argc,char **args) 8c4762a1bSJed Brown { 9c4762a1bSJed Brown Mat C,A; 10c4762a1bSJed Brown PetscInt i,j; 11c4762a1bSJed Brown PetscScalar v; 12c4762a1bSJed Brown PC pc; 13c4762a1bSJed Brown Vec xtmp; 14c4762a1bSJed Brown 15*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&args,(char*)0,help)); 16*9566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&C)); 17*9566063dSJacob Faibussowitsch PetscCall(MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,3,3)); 18*9566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(C)); 19*9566063dSJacob Faibussowitsch PetscCall(MatSetUp(C)); 20*9566063dSJacob Faibussowitsch PetscCall(VecCreateSeq(PETSC_COMM_WORLD,3,&xtmp)); 21c4762a1bSJed Brown i = 0; j = 0; v = 4; 22*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES)); 23c4762a1bSJed Brown i = 0; j = 2; v = 1; 24*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES)); 25c4762a1bSJed Brown i = 1; j = 0; v = 1; 26*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES)); 27c4762a1bSJed Brown i = 1; j = 1; v = 4; 28*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES)); 29c4762a1bSJed Brown i = 2; j = 1; v = 1; 30*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(C,1,&i,1,&j,&v,INSERT_VALUES)); 31c4762a1bSJed Brown 32*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 33*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 34c4762a1bSJed Brown 35*9566063dSJacob Faibussowitsch PetscCall(MatView(C,PETSC_VIEWER_STDOUT_WORLD)); 36*9566063dSJacob Faibussowitsch PetscCall(PCCreate(PETSC_COMM_WORLD,&pc)); 37*9566063dSJacob Faibussowitsch PetscCall(PCSetFromOptions(pc)); 38*9566063dSJacob Faibussowitsch PetscCall(PCSetOperators(pc,C,C)); 39*9566063dSJacob Faibussowitsch PetscCall(PCSetUp(pc)); 40*9566063dSJacob Faibussowitsch PetscCall(PCFactorGetMatrix(pc,&A)); 41*9566063dSJacob Faibussowitsch PetscCall(MatView(A,PETSC_VIEWER_STDOUT_WORLD)); 42c4762a1bSJed Brown 43*9566063dSJacob Faibussowitsch PetscCall(PCDestroy(&pc)); 44*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&xtmp)); 45*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 46c4762a1bSJed Brown 47*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 48b122ec5aSJacob Faibussowitsch return 0; 49c4762a1bSJed Brown } 50