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 DM da; 12c4762a1bSJed Brown PetscViewer viewer; 13c4762a1bSJed Brown Vec local,global; 14c4762a1bSJed Brown PetscScalar value; 15c4762a1bSJed Brown 16*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscInitialize(&argc,&argv,(char*)0,help)); 175f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDrawOpen(PETSC_COMM_WORLD,0,"",300,0,300,300,&viewer)); 18c4762a1bSJed Brown 19c4762a1bSJed Brown /* Read options */ 205f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 215f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 225f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 235f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 24c4762a1bSJed Brown 25c4762a1bSJed Brown /* Create distributed array and get vectors */ 265f80ce2aSJacob Faibussowitsch CHKERRQ(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,m,n,1,1,NULL,NULL,&da)); 275f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetFromOptions(da)); 285f80ce2aSJacob Faibussowitsch CHKERRQ(DMSetUp(da)); 295f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateGlobalVector(da,&global)); 305f80ce2aSJacob Faibussowitsch CHKERRQ(DMCreateLocalVector(da,&local)); 31c4762a1bSJed Brown 32c4762a1bSJed Brown value = -3.0; 335f80ce2aSJacob Faibussowitsch CHKERRQ(VecSet(global,value)); 345f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalBegin(da,global,INSERT_VALUES,local)); 355f80ce2aSJacob Faibussowitsch CHKERRQ(DMGlobalToLocalEnd(da,global,INSERT_VALUES,local)); 36c4762a1bSJed Brown 375f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 38c4762a1bSJed Brown value = rank+1; 395f80ce2aSJacob Faibussowitsch CHKERRQ(VecScale(local,value)); 405f80ce2aSJacob Faibussowitsch CHKERRQ(DMLocalToGlobalBegin(da,local,ADD_VALUES,global)); 415f80ce2aSJacob Faibussowitsch CHKERRQ(DMLocalToGlobalEnd(da,local,ADD_VALUES,global)); 42c4762a1bSJed Brown 435f80ce2aSJacob Faibussowitsch CHKERRQ(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 445f80ce2aSJacob Faibussowitsch CHKERRQ(DMView(da,viewer)); 45c4762a1bSJed Brown 46c4762a1bSJed Brown /* Free memory */ 475f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerDestroy(&viewer)); 485f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&local)); 495f80ce2aSJacob Faibussowitsch CHKERRQ(VecDestroy(&global)); 505f80ce2aSJacob Faibussowitsch CHKERRQ(DMDestroy(&da)); 51*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscFinalize()); 52*b122ec5aSJacob Faibussowitsch return 0; 53c4762a1bSJed Brown } 54c4762a1bSJed Brown 55c4762a1bSJed Brown /*TEST 56c4762a1bSJed Brown 57c4762a1bSJed Brown test: 58c4762a1bSJed Brown nsize: 2 59c4762a1bSJed Brown args: -nox 60c4762a1bSJed Brown filter: grep -v -i Object 61c4762a1bSJed Brown 62c4762a1bSJed Brown test: 63c4762a1bSJed Brown suffix: cuda1 64c4762a1bSJed Brown requires: cuda 65c4762a1bSJed Brown args: -dm_vec_type cuda -nox 66c4762a1bSJed Brown filter: grep -v -i Object 67c4762a1bSJed Brown 68c4762a1bSJed Brown test: 69c4762a1bSJed Brown suffix: cuda2 70c4762a1bSJed Brown nsize: 2 71c4762a1bSJed Brown requires: cuda 72c4762a1bSJed Brown args: -dm_vec_type cuda -nox 73c4762a1bSJed Brown filter: grep -v -i Object 74c4762a1bSJed Brown 75c4762a1bSJed Brown TEST*/ 76