1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 3-d.\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 = 2, N = 3, P = 4, stencil_width = 1, dof = 1, m, n, p, xstart, ystart, zstart, i, j, k, c; 10c4762a1bSJed Brown DM da; 11c4762a1bSJed Brown Vec global, local; 12c4762a1bSJed Brown PetscScalar ****vglobal; 13c4762a1bSJed Brown PetscViewer sview; 14c4762a1bSJed Brown PetscScalar sum; 15c4762a1bSJed Brown 16327415f7SBarry Smith PetscFunctionBeginUser; 179566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 189566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-stencil_width", &stencil_width, 0)); 199566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-dof", &dof, 0)); 20c4762a1bSJed Brown 219566063dSJacob Faibussowitsch PetscCall(DMDACreate3d(PETSC_COMM_WORLD, DM_BOUNDARY_MIRROR, DM_BOUNDARY_MIRROR, DM_BOUNDARY_MIRROR, DMDA_STENCIL_STAR, M, N, P, PETSC_DECIDE, PETSC_DECIDE, PETSC_DECIDE, dof, stencil_width, NULL, NULL, NULL, &da)); 229566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 239566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 249566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da, &xstart, &ystart, &zstart, &m, &n, &p)); 25c4762a1bSJed Brown 269566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 279566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da, global, &vglobal)); 28c4762a1bSJed Brown for (k = zstart; k < zstart + p; k++) { 29c4762a1bSJed Brown for (j = ystart; j < ystart + n; j++) { 30c4762a1bSJed Brown for (i = xstart; i < xstart + m; i++) { 31ad540459SPierre Jolivet for (c = 0; c < dof; c++) vglobal[k][j][i][c] = 1000 * k + 100 * j + 10 * i + c; 32c4762a1bSJed Brown } 33c4762a1bSJed Brown } 34c4762a1bSJed Brown } 359566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da, global, &vglobal)); 36c4762a1bSJed Brown 379566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 389566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da, global, ADD_VALUES, local)); 399566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da, global, ADD_VALUES, local)); 40c4762a1bSJed Brown 419566063dSJacob Faibussowitsch PetscCall(VecSum(local, &sum)); 429566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD, "sum %g\n", (double)PetscRealPart(sum))); 439566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD, stdout)); 449566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 459566063dSJacob Faibussowitsch PetscCall(VecView(local, sview)); 469566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 479566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 48c4762a1bSJed Brown 499566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 509566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 519566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 52c4762a1bSJed Brown 539566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 54b122ec5aSJacob Faibussowitsch return 0; 55c4762a1bSJed Brown } 56c4762a1bSJed Brown 57c4762a1bSJed Brown /*TEST 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown 61c4762a1bSJed Brown test: 62c4762a1bSJed Brown suffix: 2 63c4762a1bSJed Brown nsize: 3 64c4762a1bSJed Brown 65c4762a1bSJed Brown TEST*/ 66