1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests various DM routines.\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscdm.h> 5*c4762a1bSJed Brown #include <petscdmda.h> 6*c4762a1bSJed Brown 7*c4762a1bSJed Brown int main(int argc,char **argv) 8*c4762a1bSJed Brown { 9*c4762a1bSJed Brown PetscMPIInt rank; 10*c4762a1bSJed Brown PetscInt M = 10,N = 8,m = PETSC_DECIDE,n = PETSC_DECIDE; 11*c4762a1bSJed Brown PetscErrorCode ierr; 12*c4762a1bSJed Brown DM da; 13*c4762a1bSJed Brown PetscViewer viewer; 14*c4762a1bSJed Brown Vec local,global; 15*c4762a1bSJed Brown PetscScalar value; 16*c4762a1bSJed Brown 17*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 18*c4762a1bSJed Brown ierr = PetscViewerDrawOpen(PETSC_COMM_WORLD,0,"",300,0,300,300,&viewer);CHKERRQ(ierr); 19*c4762a1bSJed Brown 20*c4762a1bSJed Brown /* Read options */ 21*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL);CHKERRQ(ierr); 24*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr); 25*c4762a1bSJed Brown 26*c4762a1bSJed Brown /* Create distributed array and get vectors */ 27*c4762a1bSJed Brown ierr = DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,m,n,1,1,NULL,NULL,&da);CHKERRQ(ierr); 28*c4762a1bSJed Brown ierr = DMSetFromOptions(da);CHKERRQ(ierr); 29*c4762a1bSJed Brown ierr = DMSetUp(da);CHKERRQ(ierr); 30*c4762a1bSJed Brown ierr = DMCreateGlobalVector(da,&global);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = DMCreateLocalVector(da,&local);CHKERRQ(ierr); 32*c4762a1bSJed Brown 33*c4762a1bSJed Brown value = -3.0; 34*c4762a1bSJed Brown ierr = VecSet(global,value);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = DMGlobalToLocalBegin(da,global,INSERT_VALUES,local);CHKERRQ(ierr); 36*c4762a1bSJed Brown ierr = DMGlobalToLocalEnd(da,global,INSERT_VALUES,local);CHKERRQ(ierr); 37*c4762a1bSJed Brown 38*c4762a1bSJed Brown ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 39*c4762a1bSJed Brown value = rank+1; 40*c4762a1bSJed Brown ierr = VecScale(local,value);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = DMLocalToGlobalBegin(da,local,ADD_VALUES,global);CHKERRQ(ierr); 42*c4762a1bSJed Brown ierr = DMLocalToGlobalEnd(da,local,ADD_VALUES,global);CHKERRQ(ierr); 43*c4762a1bSJed Brown 44*c4762a1bSJed Brown ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = DMView(da,viewer);CHKERRQ(ierr); 46*c4762a1bSJed Brown 47*c4762a1bSJed Brown /* Free memory */ 48*c4762a1bSJed Brown ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 49*c4762a1bSJed Brown ierr = VecDestroy(&local);CHKERRQ(ierr); 50*c4762a1bSJed Brown ierr = VecDestroy(&global);CHKERRQ(ierr); 51*c4762a1bSJed Brown ierr = DMDestroy(&da);CHKERRQ(ierr); 52*c4762a1bSJed Brown ierr = PetscFinalize(); 53*c4762a1bSJed Brown return ierr; 54*c4762a1bSJed Brown } 55*c4762a1bSJed Brown 56*c4762a1bSJed Brown 57*c4762a1bSJed Brown 58*c4762a1bSJed Brown /*TEST 59*c4762a1bSJed Brown 60*c4762a1bSJed Brown test: 61*c4762a1bSJed Brown nsize: 2 62*c4762a1bSJed Brown args: -nox 63*c4762a1bSJed Brown filter: grep -v -i Object 64*c4762a1bSJed Brown 65*c4762a1bSJed Brown test: 66*c4762a1bSJed Brown suffix: cuda1 67*c4762a1bSJed Brown requires: cuda 68*c4762a1bSJed Brown args: -dm_vec_type cuda -nox 69*c4762a1bSJed Brown filter: grep -v -i Object 70*c4762a1bSJed Brown 71*c4762a1bSJed Brown test: 72*c4762a1bSJed Brown suffix: cuda2 73*c4762a1bSJed Brown nsize: 2 74*c4762a1bSJed Brown requires: cuda 75*c4762a1bSJed Brown args: -dm_vec_type cuda -nox 76*c4762a1bSJed Brown filter: grep -v -i Object 77*c4762a1bSJed Brown 78*c4762a1bSJed Brown TEST*/ 79