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 PetscErrorCode ierr; 14c4762a1bSJed Brown DM da; 15c4762a1bSJed Brown PetscViewer viewer; 16c4762a1bSJed Brown Vec local,global; 17c4762a1bSJed Brown PetscScalar value; 18c4762a1bSJed Brown PetscDraw draw; 19c4762a1bSJed Brown PetscBool flg = PETSC_FALSE; 20c4762a1bSJed Brown ISLocalToGlobalMapping is; 21c4762a1bSJed Brown 22c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDrawOpen(PETSC_COMM_WORLD,0,"",280,480,600,200,&viewer)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDrawGetDraw(viewer,0,&draw)); 25*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawSetDoubleBuffer(draw)); 26c4762a1bSJed Brown 27c4762a1bSJed Brown /* Readoptions */ 28*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 29*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetEnum(NULL,NULL,"-wrap",DMBoundaryTypes,(PetscEnum*)&bx,NULL)); 30*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL)); 31*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-s",&s,NULL)); 32c4762a1bSJed Brown 33c4762a1bSJed Brown /* Create distributed array and get vectors */ 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,bx,M,dof,s,NULL,&da)); 35*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da)); 36*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da)); 37*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMView(da,viewer)); 38*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da,&global)); 39*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateLocalVector(da,&local)); 40c4762a1bSJed Brown 41c4762a1bSJed Brown value = 1; 42*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecSet(global,value)); 43c4762a1bSJed Brown 44*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 45c4762a1bSJed Brown value = rank+1; 46*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecScale(global,value)); 47c4762a1bSJed Brown 48*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(global,viewer)); 49*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nGlobal Vector:\n")); 50*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 51*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\n")); 52c4762a1bSJed Brown 53c4762a1bSJed Brown /* Send ghost points to local vectors */ 54*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 55*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 56c4762a1bSJed Brown 57*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetBool(NULL,NULL,"-local_print",&flg,NULL)); 58c4762a1bSJed Brown if (flg) { 59c4762a1bSJed Brown PetscViewer sviewer; 60c4762a1bSJed Brown 61*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 62*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal Vector: processor %d\n",rank)); 63*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 64*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(local,sviewer)); 65*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 66*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 67*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 68c4762a1bSJed Brown } 69*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal to global mapping\n")); 70*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGetLocalToGlobalMapping(da,&is)); 71*5f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingView(is,PETSC_VIEWER_STDOUT_WORLD)); 72c4762a1bSJed Brown 73c4762a1bSJed Brown /* Free memory */ 74*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDestroy(&viewer)); 75*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&global)); 76*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&local)); 77*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da)); 78c4762a1bSJed Brown ierr = PetscFinalize(); 79c4762a1bSJed Brown return ierr; 80c4762a1bSJed Brown } 81c4762a1bSJed Brown 82c4762a1bSJed Brown /*TEST 83c4762a1bSJed Brown 84c4762a1bSJed Brown test: 85c4762a1bSJed Brown nsize: 2 86c4762a1bSJed Brown args: -nox 87c4762a1bSJed Brown filter: grep -v "MPI processes" 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