1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests mirror boundary conditions in 1-d.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscdm.h> 5c4762a1bSJed Brown #include <petscdmda.h> 6c4762a1bSJed Brown 79371c9d4SSatish Balay int main(int argc, char **argv) { 8c4762a1bSJed Brown PetscInt M = 6, stencil_width = 1, dof = 1, m, xstart, i, j; 9c4762a1bSJed Brown DM da; 10c4762a1bSJed Brown Vec global, local; 11c4762a1bSJed Brown PetscScalar **vglobal; 12c4762a1bSJed Brown PetscViewer sviewer; 13c4762a1bSJed Brown 14327415f7SBarry Smith PetscFunctionBeginUser; 159566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, (char *)0, 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(DMDACreate1d(PETSC_COMM_WORLD, DM_BOUNDARY_MIRROR, M, dof, stencil_width, NULL, &da)); 209566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 219566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 229566063dSJacob Faibussowitsch PetscCall(DMDAGetCorners(da, &xstart, 0, 0, &m, 0, 0)); 23c4762a1bSJed Brown 249566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 259566063dSJacob Faibussowitsch PetscCall(DMDAVecGetArrayDOF(da, global, &vglobal)); 26c4762a1bSJed Brown for (i = xstart; i < xstart + m; i++) { 27*ad540459SPierre Jolivet for (j = 0; j < dof; j++) vglobal[i][j] = 100 * (i + 1) + j; 28c4762a1bSJed Brown } 299566063dSJacob Faibussowitsch PetscCall(DMDAVecRestoreArrayDOF(da, global, &vglobal)); 30c4762a1bSJed Brown 319566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 329566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da, global, INSERT_VALUES, local)); 339566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da, global, INSERT_VALUES, local)); 34c4762a1bSJed Brown 359566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sviewer)); 369566063dSJacob Faibussowitsch PetscCall(VecView(local, sviewer)); 379566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sviewer)); 389566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 399566063dSJacob Faibussowitsch PetscCall(VecView(global, PETSC_VIEWER_STDOUT_WORLD)); 40c4762a1bSJed Brown 419566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 429566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 439566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 44c4762a1bSJed Brown 459566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 46b122ec5aSJacob Faibussowitsch return 0; 47c4762a1bSJed Brown } 48c4762a1bSJed Brown 49c4762a1bSJed Brown /*TEST 50c4762a1bSJed Brown 51c4762a1bSJed Brown test: 52c4762a1bSJed Brown 53c4762a1bSJed Brown test: 54c4762a1bSJed Brown suffix: 2 55c4762a1bSJed Brown nsize: 2 56c4762a1bSJed Brown filter: grep -v "Vec Object" 57c4762a1bSJed Brown 58c4762a1bSJed Brown TEST*/ 59