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 7*9371c9d4SSatish Balay int main(int argc, char **args) { 8c4762a1bSJed Brown Mat C, A; 9c4762a1bSJed Brown PetscInt i, j; 10c4762a1bSJed Brown PetscScalar v; 11c4762a1bSJed Brown PC pc; 12c4762a1bSJed Brown Vec xtmp; 13c4762a1bSJed Brown 14327415f7SBarry Smith PetscFunctionBeginUser; 159566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 169566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &C)); 179566063dSJacob Faibussowitsch PetscCall(MatSetSizes(C, PETSC_DECIDE, PETSC_DECIDE, 3, 3)); 189566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(C)); 199566063dSJacob Faibussowitsch PetscCall(MatSetUp(C)); 209566063dSJacob Faibussowitsch PetscCall(VecCreateSeq(PETSC_COMM_WORLD, 3, &xtmp)); 21*9371c9d4SSatish Balay i = 0; 22*9371c9d4SSatish Balay j = 0; 23*9371c9d4SSatish Balay v = 4; 249566063dSJacob Faibussowitsch PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 25*9371c9d4SSatish Balay i = 0; 26*9371c9d4SSatish Balay j = 2; 27*9371c9d4SSatish Balay v = 1; 289566063dSJacob Faibussowitsch PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 29*9371c9d4SSatish Balay i = 1; 30*9371c9d4SSatish Balay j = 0; 31*9371c9d4SSatish Balay v = 1; 329566063dSJacob Faibussowitsch PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 33*9371c9d4SSatish Balay i = 1; 34*9371c9d4SSatish Balay j = 1; 35*9371c9d4SSatish Balay v = 4; 369566063dSJacob Faibussowitsch PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 37*9371c9d4SSatish Balay i = 2; 38*9371c9d4SSatish Balay j = 1; 39*9371c9d4SSatish Balay v = 1; 409566063dSJacob Faibussowitsch PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 41c4762a1bSJed Brown 429566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 439566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 44c4762a1bSJed Brown 459566063dSJacob Faibussowitsch PetscCall(MatView(C, PETSC_VIEWER_STDOUT_WORLD)); 469566063dSJacob Faibussowitsch PetscCall(PCCreate(PETSC_COMM_WORLD, &pc)); 479566063dSJacob Faibussowitsch PetscCall(PCSetFromOptions(pc)); 489566063dSJacob Faibussowitsch PetscCall(PCSetOperators(pc, C, C)); 499566063dSJacob Faibussowitsch PetscCall(PCSetUp(pc)); 509566063dSJacob Faibussowitsch PetscCall(PCFactorGetMatrix(pc, &A)); 519566063dSJacob Faibussowitsch PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD)); 52c4762a1bSJed Brown 539566063dSJacob Faibussowitsch PetscCall(PCDestroy(&pc)); 549566063dSJacob Faibussowitsch PetscCall(VecDestroy(&xtmp)); 559566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 56c4762a1bSJed Brown 579566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 58b122ec5aSJacob Faibussowitsch return 0; 59c4762a1bSJed Brown } 60