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*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 22*9566063dSJacob Faibussowitsch PetscCall(PetscViewerDrawOpen(PETSC_COMM_WORLD,0,"",280,480,600,200,&viewer)); 23*9566063dSJacob Faibussowitsch PetscCall(PetscViewerDrawGetDraw(viewer,0,&draw)); 24*9566063dSJacob Faibussowitsch PetscCall(PetscDrawSetDoubleBuffer(draw)); 25c4762a1bSJed Brown 26c4762a1bSJed Brown /* Readoptions */ 27*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 28*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetEnum(NULL,NULL,"-wrap",DMBoundaryTypes,(PetscEnum*)&bx,NULL)); 29*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-dof",&dof,NULL)); 30*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-s",&s,NULL)); 31c4762a1bSJed Brown 32c4762a1bSJed Brown /* Create distributed array and get vectors */ 33*9566063dSJacob Faibussowitsch PetscCall(DMDACreate1d(PETSC_COMM_WORLD,bx,M,dof,s,NULL,&da)); 34*9566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 35*9566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 36*9566063dSJacob Faibussowitsch PetscCall(DMView(da,viewer)); 37*9566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da,&global)); 38*9566063dSJacob Faibussowitsch PetscCall(DMCreateLocalVector(da,&local)); 39c4762a1bSJed Brown 40c4762a1bSJed Brown value = 1; 41*9566063dSJacob Faibussowitsch PetscCall(VecSet(global,value)); 42c4762a1bSJed Brown 43*9566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 44c4762a1bSJed Brown value = rank+1; 45*9566063dSJacob Faibussowitsch PetscCall(VecScale(global,value)); 46c4762a1bSJed Brown 47*9566063dSJacob Faibussowitsch PetscCall(VecView(global,viewer)); 48*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nGlobal Vector:\n")); 49*9566063dSJacob Faibussowitsch PetscCall(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 50*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\n")); 51c4762a1bSJed Brown 52c4762a1bSJed Brown /* Send ghost points to local vectors */ 53*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 54*9566063dSJacob Faibussowitsch PetscCall(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 55c4762a1bSJed Brown 56*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL,NULL,"-local_print",&flg,NULL)); 57c4762a1bSJed Brown if (flg) { 58c4762a1bSJed Brown PetscViewer sviewer; 59c4762a1bSJed Brown 60*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 61*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal Vector: processor %d\n",rank)); 62*9566063dSJacob Faibussowitsch PetscCall(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 63*9566063dSJacob Faibussowitsch PetscCall(VecView(local,sviewer)); 64*9566063dSJacob Faibussowitsch PetscCall(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&sviewer)); 65*9566063dSJacob Faibussowitsch PetscCall(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 66*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 67c4762a1bSJed Brown } 68*9566063dSJacob Faibussowitsch PetscCall(PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal to global mapping\n")); 69*9566063dSJacob Faibussowitsch PetscCall(DMGetLocalToGlobalMapping(da,&is)); 70*9566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingView(is,PETSC_VIEWER_STDOUT_WORLD)); 71c4762a1bSJed Brown 72c4762a1bSJed Brown /* Free memory */ 73*9566063dSJacob Faibussowitsch PetscCall(PetscViewerDestroy(&viewer)); 74*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&global)); 75*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&local)); 76*9566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 77*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 78b122ec5aSJacob Faibussowitsch return 0; 79c4762a1bSJed Brown } 80c4762a1bSJed Brown 81c4762a1bSJed Brown /*TEST 82c4762a1bSJed Brown 83c4762a1bSJed Brown test: 84c4762a1bSJed Brown nsize: 2 85c4762a1bSJed Brown args: -nox 86c4762a1bSJed Brown filter: grep -v "MPI processes" 87c4762a1bSJed Brown output_file: output/ex2_1.out 88c4762a1bSJed Brown requires: x 89c4762a1bSJed Brown 90c4762a1bSJed Brown test: 91c4762a1bSJed Brown suffix: 2 92c4762a1bSJed Brown nsize: 3 93c4762a1bSJed Brown args: -wrap none -local_print -nox 94c4762a1bSJed Brown filter: grep -v "Vec Object: Vec" 95c4762a1bSJed Brown requires: x 96c4762a1bSJed Brown 97c4762a1bSJed Brown test: 98c4762a1bSJed Brown suffix: 3 99c4762a1bSJed Brown nsize: 3 100c4762a1bSJed Brown args: -wrap ghosted -local_print -nox 101c4762a1bSJed Brown filter: grep -v "Vec Object: Vec" 102c4762a1bSJed Brown requires: x 103c4762a1bSJed Brown 104c4762a1bSJed Brown TEST*/ 105