1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests various DM routines.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscdm.h> 5c4762a1bSJed Brown #include <petscdmda.h> 6c4762a1bSJed Brown 7c4762a1bSJed Brown int main(int argc,char **argv) 8c4762a1bSJed Brown { 9c4762a1bSJed Brown PetscMPIInt rank; 10c4762a1bSJed Brown PetscInt M = 10,N = 8,m = PETSC_DECIDE,n = PETSC_DECIDE; 11c4762a1bSJed Brown PetscErrorCode ierr; 12c4762a1bSJed Brown DM da; 13c4762a1bSJed Brown PetscViewer viewer; 14c4762a1bSJed Brown Vec local,global; 15c4762a1bSJed Brown PetscScalar value; 16c4762a1bSJed Brown 17c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 18*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDrawOpen(PETSC_COMM_WORLD,0,"",300,0,300,300,&viewer)); 19c4762a1bSJed Brown 20c4762a1bSJed Brown /* Read options */ 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 22*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 25c4762a1bSJed Brown 26c4762a1bSJed Brown /* Create distributed array and get vectors */ 27*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,m,n,1,1,NULL,NULL,&da)); 28*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da)); 29*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da)); 30*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da,&global)); 31*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateLocalVector(da,&local)); 32c4762a1bSJed Brown 33c4762a1bSJed Brown value = -3.0; 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecSet(global,value)); 35*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 36*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 37c4762a1bSJed Brown 38*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 39c4762a1bSJed Brown value = rank+1; 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecScale(local,value)); 41*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMLocalToGlobalBegin(da,local,ADD_VALUES,global)); 42*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMLocalToGlobalEnd(da,local,ADD_VALUES,global)); 43c4762a1bSJed Brown 44*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 45*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMView(da,viewer)); 46c4762a1bSJed Brown 47c4762a1bSJed Brown /* Free memory */ 48*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDestroy(&viewer)); 49*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&local)); 50*5f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&global)); 51*5f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da)); 52c4762a1bSJed Brown ierr = PetscFinalize(); 53c4762a1bSJed Brown return ierr; 54c4762a1bSJed Brown } 55c4762a1bSJed Brown 56c4762a1bSJed Brown /*TEST 57c4762a1bSJed Brown 58c4762a1bSJed Brown test: 59c4762a1bSJed Brown nsize: 2 60c4762a1bSJed Brown args: -nox 61c4762a1bSJed Brown filter: grep -v -i Object 62c4762a1bSJed Brown 63c4762a1bSJed Brown test: 64c4762a1bSJed Brown suffix: cuda1 65c4762a1bSJed Brown requires: cuda 66c4762a1bSJed Brown args: -dm_vec_type cuda -nox 67c4762a1bSJed Brown filter: grep -v -i Object 68c4762a1bSJed Brown 69c4762a1bSJed Brown test: 70c4762a1bSJed Brown suffix: cuda2 71c4762a1bSJed Brown nsize: 2 72c4762a1bSJed Brown requires: cuda 73c4762a1bSJed Brown args: -dm_vec_type cuda -nox 74c4762a1bSJed Brown filter: grep -v -i Object 75c4762a1bSJed Brown 76c4762a1bSJed Brown TEST*/ 77