1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests various 1-dimensional DMDA routines.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscdm.h> 5c4762a1bSJed Brown #include <petscdmda.h> 6c4762a1bSJed Brown #include <petscdraw.h> 7c4762a1bSJed Brown 8*d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 9*d71ae5a4SJacob Faibussowitsch { 10c4762a1bSJed Brown PetscMPIInt rank; 11c4762a1bSJed Brown PetscInt M = 13, s = 1, dof = 1; 12c4762a1bSJed Brown DMBoundaryType bx = DM_BOUNDARY_PERIODIC; 13c4762a1bSJed Brown DM da; 14c4762a1bSJed Brown PetscViewer viewer; 15c4762a1bSJed Brown Vec local, global; 16c4762a1bSJed Brown PetscScalar value; 17c4762a1bSJed Brown PetscDraw draw; 18c4762a1bSJed Brown PetscBool flg = PETSC_FALSE; 19c4762a1bSJed Brown ISLocalToGlobalMapping is; 20c4762a1bSJed Brown 21327415f7SBarry Smith PetscFunctionBeginUser; 229566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 239566063dSJacob Faibussowitsch PetscCall(PetscViewerDrawOpen(PETSC_COMM_WORLD, 0, "", 280, 480, 600, 200, &viewer)); 249566063dSJacob Faibussowitsch PetscCall(PetscViewerDrawGetDraw(viewer, 0, &draw)); 259566063dSJacob Faibussowitsch PetscCall(PetscDrawSetDoubleBuffer(draw)); 26c4762a1bSJed Brown 27c4762a1bSJed Brown /* Readoptions */ 289566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-M", &M, NULL)); 299566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetEnum(NULL, NULL, "-wrap", DMBoundaryTypes, (PetscEnum *)&bx, NULL)); 309566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-dof", &dof, NULL)); 319566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-s", &s, NULL)); 32c4762a1bSJed Brown 33c4762a1bSJed Brown /* Create distributed array and get vectors */ 349566063dSJacob Faibussowitsch PetscCall(DMDACreate1d(PETSC_COMM_WORLD, bx, M, dof, s, NULL, &da)); 359566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 369566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 379566063dSJacob Faibussowitsch PetscCall(DMView(da, viewer)); 389566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da, &global)); 399566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da, &local)); 40c4762a1bSJed Brown 41c4762a1bSJed Brown value = 1; 429566063dSJacob Faibussowitsch PetscCall(VecSet(global, value)); 43c4762a1bSJed Brown 449566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 45c4762a1bSJed Brown value = rank + 1; 469566063dSJacob Faibussowitsch PetscCall(VecScale(global, value)); 47c4762a1bSJed Brown 489566063dSJacob Faibussowitsch PetscCall(VecView(global, viewer)); 499566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD, "\nGlobal Vector:\n")); 509566063dSJacob Faibussowitsch PetscCall(VecView(global, PETSC_VIEWER_STDOUT_WORLD)); 519566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD, "\n")); 52c4762a1bSJed Brown 53c4762a1bSJed Brown /* Send ghost points to local vectors */ 549566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da, global, INSERT_VALUES, local)); 559566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da, global, INSERT_VALUES, local)); 56c4762a1bSJed Brown 579566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-local_print", &flg, NULL)); 58c4762a1bSJed Brown if (flg) { 59c4762a1bSJed Brown PetscViewer sviewer; 60c4762a1bSJed Brown 619566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 629566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD, "\nLocal Vector: processor %d\n", rank)); 639566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sviewer)); 649566063dSJacob Faibussowitsch PetscCall(VecView(local, sviewer)); 659566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD, PETSC_COMM_SELF, &sviewer)); 669566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 679566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 68c4762a1bSJed Brown } 699566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD, "\nLocal to global mapping\n")); 709566063dSJacob Faibussowitsch PetscCall(DMGetLocalToGlobalMapping(da, &is)); 719566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingView(is, PETSC_VIEWER_STDOUT_WORLD)); 72c4762a1bSJed Brown 73c4762a1bSJed Brown /* Free memory */ 749566063dSJacob Faibussowitsch PetscCall(PetscViewerDestroy(&viewer)); 759566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 769566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 779566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 789566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 79b122ec5aSJacob Faibussowitsch return 0; 80c4762a1bSJed Brown } 81c4762a1bSJed Brown 82c4762a1bSJed Brown /*TEST 83c4762a1bSJed Brown 84c4762a1bSJed Brown test: 85c4762a1bSJed Brown nsize: 2 86c4762a1bSJed Brown args: -nox 878cc725e6SPierre Jolivet filter: grep -v " MPI process" 88c4762a1bSJed Brown output_file: output/ex2_1.out 89c4762a1bSJed Brown requires: x 90c4762a1bSJed Brown 91c4762a1bSJed Brown test: 92c4762a1bSJed Brown suffix: 2 93c4762a1bSJed Brown nsize: 3 94c4762a1bSJed Brown args: -wrap none -local_print -nox 95c4762a1bSJed Brown filter: grep -v "Vec Object: Vec" 96c4762a1bSJed Brown requires: x 97c4762a1bSJed Brown 98c4762a1bSJed Brown test: 99c4762a1bSJed Brown suffix: 3 100c4762a1bSJed Brown nsize: 3 101c4762a1bSJed Brown args: -wrap ghosted -local_print -nox 102c4762a1bSJed Brown filter: grep -v "Vec Object: Vec" 103c4762a1bSJed Brown requires: x 104c4762a1bSJed Brown 105c4762a1bSJed Brown TEST*/ 106