1c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 3-d.\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscdm.h> 4c4762a1bSJed Brown #include <petscdmda.h> 5c4762a1bSJed Brown 6d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 7d71ae5a4SJacob Faibussowitsch { 818f812f4SBarry Smith PetscInt M = 4, N = 5, P = 6, stencil_width = 1, dof = 1, m, n, p, xstart, ystart, zstart, i, j, k, c; 9c4762a1bSJed Brown DM da; 10c4762a1bSJed Brown Vec global, local; 11c4762a1bSJed Brown PetscScalar ****vglobal; 12c4762a1bSJed Brown PetscViewer sview; 13c4762a1bSJed Brown PetscScalar sum; 14c4762a1bSJed Brown 15327415f7SBarry Smith PetscFunctionBeginUser; 16*c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 179566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-stencil_width", &stencil_width, 0)); 189566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-dof", &dof, 0)); 19c4762a1bSJed Brown 209566063dSJacob 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)); 219566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 229566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 239566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da, &xstart, &ystart, &zstart, &m, &n, &p)); 24c4762a1bSJed Brown 259566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 269566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da, global, &vglobal)); 27c4762a1bSJed Brown for (k = zstart; k < zstart + p; k++) { 28c4762a1bSJed Brown for (j = ystart; j < ystart + n; j++) { 29c4762a1bSJed Brown for (i = xstart; i < xstart + m; i++) { 30ad540459SPierre Jolivet for (c = 0; c < dof; c++) vglobal[k][j][i][c] = 1000 * k + 100 * j + 10 * i + c; 31c4762a1bSJed Brown } 32c4762a1bSJed Brown } 33c4762a1bSJed Brown } 349566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da, global, &vglobal)); 35c4762a1bSJed Brown 369566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 379566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da, global, ADD_VALUES, local)); 389566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da, global, ADD_VALUES, local)); 39c4762a1bSJed Brown 409566063dSJacob Faibussowitsch PetscCall(VecSum(local, &sum)); 419566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD, "sum %g\n", (double)PetscRealPart(sum))); 429566063dSJacob Faibussowitsch PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD, stdout)); 439566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 449566063dSJacob Faibussowitsch PetscCall(VecView(local, sview)); 459566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 46c4762a1bSJed Brown 479566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 489566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 499566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 50c4762a1bSJed Brown 519566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 52b122ec5aSJacob Faibussowitsch return 0; 53c4762a1bSJed Brown } 54c4762a1bSJed Brown 55c4762a1bSJed Brown /*TEST 56c4762a1bSJed Brown 57c4762a1bSJed Brown test: 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown suffix: 2 61c4762a1bSJed Brown nsize: 3 62c4762a1bSJed Brown 63c4762a1bSJed Brown TEST*/ 64