1c4762a1bSJed Brown static char help[] = "Test MatAXPY and SUBSET_NONZERO_PATTERN [-different] [-skip]\n by default subset pattern is used \n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown /* A test contributed by Jose E. Roman, Oct. 2014 */ 4c4762a1bSJed Brown 5c4762a1bSJed Brown #include <petscmat.h> 6c4762a1bSJed Brown 7d71ae5a4SJacob Faibussowitsch int main(int argc, char **args) 8d71ae5a4SJacob Faibussowitsch { 9c4762a1bSJed Brown Mat A, B, C; 10c4762a1bSJed Brown PetscBool different = PETSC_FALSE, skip = PETSC_FALSE; 11c4762a1bSJed Brown PetscInt m0, m1, n = 128, i; 12c4762a1bSJed Brown 13327415f7SBarry Smith PetscFunctionBeginUser; 14c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help)); 159566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-different", &different, NULL)); 169566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-skip", &skip, NULL)); 17c4762a1bSJed Brown /* 18c4762a1bSJed Brown Create matrices 19c4762a1bSJed Brown A = tridiag(1,-2,1) and B = diag(7); 20c4762a1bSJed Brown */ 219566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 229566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &B)); 239566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, n, n)); 249566063dSJacob Faibussowitsch PetscCall(MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, n, n)); 259566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(A)); 269566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(B)); 279566063dSJacob Faibussowitsch PetscCall(MatSetUp(A)); 289566063dSJacob Faibussowitsch PetscCall(MatSetUp(B)); 299566063dSJacob Faibussowitsch PetscCall(MatGetOwnershipRange(A, &m0, &m1)); 30c4762a1bSJed Brown for (i = m0; i < m1; i++) { 319566063dSJacob Faibussowitsch if (i > 0) PetscCall(MatSetValue(A, i, i - 1, -1.0, INSERT_VALUES)); 329566063dSJacob Faibussowitsch if (i < n - 1) PetscCall(MatSetValue(A, i, i + 1, -1.0, INSERT_VALUES)); 339566063dSJacob Faibussowitsch PetscCall(MatSetValue(A, i, i, 2.0, INSERT_VALUES)); 349566063dSJacob Faibussowitsch PetscCall(MatSetValue(B, i, i, 7.0, INSERT_VALUES)); 35c4762a1bSJed Brown } 369566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY)); 379566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY)); 389566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(B, MAT_FINAL_ASSEMBLY)); 399566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(B, MAT_FINAL_ASSEMBLY)); 40c4762a1bSJed Brown 419566063dSJacob Faibussowitsch PetscCall(MatDuplicate(A, MAT_COPY_VALUES, &C)); 42c4762a1bSJed Brown /* Add B */ 439566063dSJacob Faibussowitsch PetscCall(MatAXPY(C, 1.0, B, (different) ? DIFFERENT_NONZERO_PATTERN : SUBSET_NONZERO_PATTERN)); 44c4762a1bSJed Brown /* Add A */ 459566063dSJacob Faibussowitsch if (!skip) PetscCall(MatAXPY(C, 1.0, A, SUBSET_NONZERO_PATTERN)); 46c4762a1bSJed Brown 47c4762a1bSJed Brown /* 48c4762a1bSJed Brown Free memory 49c4762a1bSJed Brown */ 509566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A)); 519566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B)); 529566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 539566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 54b122ec5aSJacob Faibussowitsch return 0; 55c4762a1bSJed Brown } 56c4762a1bSJed Brown 57c4762a1bSJed Brown /*TEST 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown nsize: 4 61*3886731fSPierre Jolivet output_file: output/empty.out 62c4762a1bSJed Brown 63c4762a1bSJed Brown test: 64c4762a1bSJed Brown suffix: 2 65c4762a1bSJed Brown nsize: 4 66c4762a1bSJed Brown args: -different 67*3886731fSPierre Jolivet output_file: output/empty.out 68c4762a1bSJed Brown 69c4762a1bSJed Brown test: 70c4762a1bSJed Brown suffix: 3 71c4762a1bSJed Brown nsize: 4 72c4762a1bSJed Brown args: -skip 73*3886731fSPierre Jolivet output_file: output/empty.out 74c4762a1bSJed Brown 75c4762a1bSJed Brown test: 76c4762a1bSJed Brown suffix: 4 77c4762a1bSJed Brown nsize: 4 78c4762a1bSJed Brown args: -different -skip 79*3886731fSPierre Jolivet output_file: output/empty.out 80c4762a1bSJed Brown 81c4762a1bSJed Brown test: 82c4762a1bSJed Brown suffix: baij 83c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1 84*3886731fSPierre Jolivet output_file: output/empty.out 85c4762a1bSJed Brown 86c4762a1bSJed Brown test: 87c4762a1bSJed Brown suffix: mpibaij 88c4762a1bSJed Brown nsize: 4 89c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1 90*3886731fSPierre Jolivet output_file: output/empty.out 91c4762a1bSJed Brown 92c4762a1bSJed Brown test: 93c4762a1bSJed Brown suffix: mpisbaij 94c4762a1bSJed Brown nsize: 4 95c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1 96*3886731fSPierre Jolivet output_file: output/empty.out 97c4762a1bSJed Brown 98c4762a1bSJed Brown test: 99c4762a1bSJed Brown suffix: sbaij 100c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1 101*3886731fSPierre Jolivet output_file: output/empty.out 102c4762a1bSJed Brown 103c4762a1bSJed Brown TEST*/ 104