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 8c4762a1bSJed Brown int main(int argc,char **argv) 9c4762a1bSJed Brown { 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 21*327415f7SBarry 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