10   DM          da1, da2, packer;  in main()  local
19   PetscCall(DMCompositeCreate(PETSC_COMM_WORLD, &packer));  in main()
23   PetscCall(DMCompositeAddDM(packer, da1));  in main()
27   PetscCall(DMCompositeAddDM(packer, da2));  in main()
29   PetscCall(DMCreateGlobalVector(packer, &global));  in main()
30   PetscCall(DMCreateLocalVector(packer, &local));  in main()
31   PetscCall(DMCreateLocalVector(packer, &buffer));  in main()
33   PetscCall(DMCompositeGetAccessArray(packer, global, 2, NULL, globals));  in main()
48   PetscCall(DMCompositeRestoreAccessArray(packer, global, 2, NULL, globals));  in main()
51   PetscCall(DMGlobalToLocalBegin(packer, global, INSERT_VALUES, local));  in main()
52   PetscCall(DMGlobalToLocalEnd(packer, global, INSERT_VALUES, local));  in main()
62   PetscCall(DMLocalToGlobalBegin(packer, local, INSERT_VALUES, global));  in main()
63   PetscCall(DMLocalToGlobalEnd(packer, local, INSERT_VALUES, global));  in main()
68   PetscCall(DMLocalToLocalBegin(packer, local, INSERT_VALUES, buffer));  in main()
69   PetscCall(DMLocalToLocalEnd(packer, local, INSERT_VALUES, buffer));  in main()
81   PetscCall(DMDestroy(&packer));  in main()