1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests DMLocalToGlobal() for dof > 1\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscdm.h> 5c4762a1bSJed Brown #include <petscdmda.h> 6c4762a1bSJed Brown 7*d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 8*d71ae5a4SJacob Faibussowitsch { 9c4762a1bSJed Brown PetscInt M = 6, N = 5, m = PETSC_DECIDE, n = PETSC_DECIDE, i, j, is, js, in, jen; 10c4762a1bSJed Brown DM da; 11c4762a1bSJed Brown Vec local, global; 12c4762a1bSJed Brown PetscScalar ***l; 13c4762a1bSJed Brown 14327415f7SBarry Smith PetscFunctionBeginUser; 159566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 16c4762a1bSJed Brown /* Create distributed array and get vectors */ 179566063dSJacob Faibussowitsch PetscCall(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE, DMDA_STENCIL_BOX, M, N, m, n, 3, 1, NULL, NULL, &da)); 189566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 199566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 209566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 219566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 22c4762a1bSJed Brown 239566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da, &is, &js, 0, &in, &jen, 0)); 249566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da, local, &l)); 25c4762a1bSJed Brown for (i = is; i < is + in; i++) { 26c4762a1bSJed Brown for (j = js; j < js + jen; j++) { 27c4762a1bSJed Brown l[j][i][0] = 3 * (i + j * M); 28c4762a1bSJed Brown l[j][i][1] = 3 * (i + j * M) + 1; 29c4762a1bSJed Brown l[j][i][2] = 3 * (i + j * M) + 2; 30c4762a1bSJed Brown } 31c4762a1bSJed Brown } 329566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da, local, &l)); 339566063dSJacob Faibussowitsch PetscCall(DMLocalToGlobalBegin(da, local, ADD_VALUES, global)); 349566063dSJacob Faibussowitsch PetscCall(DMLocalToGlobalEnd(da, local, ADD_VALUES, global)); 35c4762a1bSJed Brown 369566063dSJacob Faibussowitsch PetscCall(VecView(global, PETSC_VIEWER_STDOUT_WORLD)); 37c4762a1bSJed Brown 38c4762a1bSJed Brown /* Free memory */ 399566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 409566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 419566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 429566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 43b122ec5aSJacob Faibussowitsch return 0; 44c4762a1bSJed Brown } 45c4762a1bSJed Brown 46c4762a1bSJed Brown /*TEST 47c4762a1bSJed Brown 48c4762a1bSJed Brown test: 49c4762a1bSJed Brown filter: grep -v -i Process 50c4762a1bSJed Brown output_file: output/ex24_1.out 51c4762a1bSJed Brown 52c4762a1bSJed Brown test: 53c4762a1bSJed Brown suffix: 2 54c4762a1bSJed Brown nsize: 2 55c4762a1bSJed Brown filter: grep -v -i Process 56c4762a1bSJed Brown output_file: output/ex24_2.out 57c4762a1bSJed Brown 58c4762a1bSJed Brown test: 59c4762a1bSJed Brown suffix: 3 60c4762a1bSJed Brown nsize: 3 61c4762a1bSJed Brown filter: grep -v -i Process 62c4762a1bSJed Brown output_file: output/ex24_2.out 63c4762a1bSJed Brown 64c4762a1bSJed Brown test: 65c4762a1bSJed Brown suffix: 4 66c4762a1bSJed Brown nsize: 4 67c4762a1bSJed Brown filter: grep -v -i Process 68c4762a1bSJed Brown output_file: output/ex24_2.out 69c4762a1bSJed Brown 70c4762a1bSJed Brown test: 71c4762a1bSJed Brown suffix: 5 72c4762a1bSJed Brown nsize: 5 73c4762a1bSJed Brown filter: grep -v -i Process 74c4762a1bSJed Brown output_file: output/ex24_2.out 75c4762a1bSJed Brown 76c4762a1bSJed Brown test: 77c4762a1bSJed Brown suffix: 6 78c4762a1bSJed Brown nsize: 6 79c4762a1bSJed Brown filter: grep -v -i Process 80c4762a1bSJed Brown output_file: output/ex24_2.out 81c4762a1bSJed Brown 82c4762a1bSJed Brown TEST*/ 83