1c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 2-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 { 8c4762a1bSJed Brown PetscInt M = 8, N = 8, stencil_width = 1, dof = 1, m, n, xstart, ystart, i, j, c; 9c4762a1bSJed Brown DM da; 10c4762a1bSJed Brown Vec global, local; 11c4762a1bSJed Brown PetscScalar ***vglobal; 12c4762a1bSJed Brown PetscViewer sview; 13c4762a1bSJed Brown 14327415f7SBarry Smith PetscFunctionBeginUser; 15*c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 169566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-stencil_width", &stencil_width, 0)); 179566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, 0, "-dof", &dof, 0)); 18c4762a1bSJed Brown 199566063dSJacob Faibussowitsch PetscCall(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_MIRROR, DM_BOUNDARY_MIRROR, DMDA_STENCIL_STAR, M, N, PETSC_DECIDE, PETSC_DECIDE, dof, stencil_width, NULL, NULL, &da)); 209566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 219566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 229566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da, &xstart, &ystart, 0, &m, &n, 0)); 23c4762a1bSJed Brown 249566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 259566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da, global, &vglobal)); 26c4762a1bSJed Brown for (j = ystart; j < ystart + n; j++) { 27c4762a1bSJed Brown for (i = xstart; i < xstart + m; i++) { 28ad540459SPierre Jolivet for (c = 0; c < dof; c++) vglobal[j][i][c] = 100 * j + 10 * (i + 1) + c; 29c4762a1bSJed Brown } 30c4762a1bSJed Brown } 319566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da, global, &vglobal)); 32c4762a1bSJed Brown 339566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 349566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da, global, INSERT_VALUES, local)); 359566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da, global, INSERT_VALUES, local)); 36c4762a1bSJed Brown 379566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 389566063dSJacob Faibussowitsch PetscCall(VecView(local, sview)); 399566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sview)); 409566063dSJacob Faibussowitsch PetscCall(VecView(global, PETSC_VIEWER_STDOUT_WORLD)); 41c4762a1bSJed Brown 429566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 439566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 449566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 45c4762a1bSJed Brown 469566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 47b122ec5aSJacob Faibussowitsch return 0; 48c4762a1bSJed Brown } 49c4762a1bSJed Brown 50c4762a1bSJed Brown /*TEST 51c4762a1bSJed Brown 52c4762a1bSJed Brown test: 53c4762a1bSJed Brown 54c4762a1bSJed Brown test: 55c4762a1bSJed Brown suffix: 2 56c4762a1bSJed Brown nsize: 4 57c4762a1bSJed Brown filter: grep -v "Vec Object" 58c4762a1bSJed Brown 59c4762a1bSJed Brown TEST*/ 60