1 2 static char help[] = "Tests various DMComposite routines.\n\n"; 3 4 #include <petscdm.h> 5 #include <petscdmda.h> 6 #include <petscdmcomposite.h> 7 8 int main(int argc,char **argv) 9 { 10 PetscMPIInt rank; 11 DM da1,da2,packer; 12 Vec local,global,globals[2],buffer; 13 PetscScalar value; 14 PetscViewer viewer; 15 16 CHKERRQ(PetscInitialize(&argc,&argv,(char*)0,help)); 17 18 CHKERRQ(DMCompositeCreate(PETSC_COMM_WORLD,&packer)); 19 CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,8,1,1,NULL,&da1)); 20 CHKERRQ(DMSetFromOptions(da1)); 21 CHKERRQ(DMSetUp(da1)); 22 CHKERRQ(DMCompositeAddDM(packer,da1)); 23 CHKERRQ(DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,6,1,1,NULL,&da2)); 24 CHKERRQ(DMSetFromOptions(da2)); 25 CHKERRQ(DMSetUp(da2)); 26 CHKERRQ(DMCompositeAddDM(packer,da2)); 27 28 CHKERRQ(DMCreateGlobalVector(packer,&global)); 29 CHKERRQ(DMCreateLocalVector(packer,&local)); 30 CHKERRQ(DMCreateLocalVector(packer,&buffer)); 31 32 CHKERRQ(DMCompositeGetAccessArray(packer,global,2,NULL,globals)); 33 value = 1; 34 CHKERRQ(VecSet(globals[0], value)); 35 value = -1; 36 CHKERRQ(VecSet(globals[1], value)); 37 CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 38 value = rank + 1; 39 CHKERRQ(VecScale(globals[0], value)); 40 CHKERRQ(VecScale(globals[1], value)); 41 CHKERRQ(DMCompositeRestoreAccessArray(packer,global,2,NULL,globals)); 42 43 /* Test GlobalToLocal in insert mode */ 44 CHKERRQ(DMGlobalToLocalBegin(packer,global,INSERT_VALUES,local)); 45 CHKERRQ(DMGlobalToLocalEnd(packer,global,INSERT_VALUES,local)); 46 47 CHKERRQ(PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 48 CHKERRQ(PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal Vector: processor %d\n",rank)); 49 CHKERRQ(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&viewer)); 50 CHKERRQ(VecView(local,viewer)); 51 CHKERRQ(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&viewer)); 52 CHKERRQ(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 53 CHKERRQ(PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 54 55 /* Test LocalToGlobal in insert mode */ 56 CHKERRQ(DMLocalToGlobalBegin(packer,local,INSERT_VALUES,global)); 57 CHKERRQ(DMLocalToGlobalEnd(packer,local,INSERT_VALUES,global)); 58 59 CHKERRQ(VecView(global,PETSC_VIEWER_STDOUT_WORLD)); 60 61 /* Test LocalToLocal in insert mode */ 62 CHKERRQ(DMLocalToLocalBegin(packer,local,INSERT_VALUES,buffer)); 63 CHKERRQ(DMLocalToLocalEnd(packer,local,INSERT_VALUES,buffer)); 64 65 CHKERRQ(PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 66 CHKERRQ(PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"\nLocal Vector: processor %d\n",rank)); 67 CHKERRQ(PetscViewerGetSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&viewer)); 68 CHKERRQ(VecView(buffer,viewer)); 69 CHKERRQ(PetscViewerRestoreSubViewer(PETSC_VIEWER_STDOUT_WORLD,PETSC_COMM_SELF,&viewer)); 70 CHKERRQ(PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD)); 71 CHKERRQ(PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD)); 72 73 CHKERRQ(VecDestroy(&buffer)); 74 CHKERRQ(VecDestroy(&local)); 75 CHKERRQ(VecDestroy(&global)); 76 CHKERRQ(DMDestroy(&packer)); 77 CHKERRQ(DMDestroy(&da2)); 78 CHKERRQ(DMDestroy(&da1)); 79 80 CHKERRQ(PetscFinalize()); 81 return 0; 82 } 83 84 /*TEST 85 86 test: 87 nsize: 3 88 89 TEST*/ 90