1 /* 2 DMPatch, for domains covered by sets of patches. 3 */ 4 #if !defined(__PETSCDMPATCH_H) 5 #define __PETSCDMPATCH_H 6 #include <petscdm.h> 7 8 /*S 9 DMPATCH - DM object that encapsulates a domain divided into many patches 10 11 Level: intermediate 12 13 Concepts: grids, grid refinement 14 15 .seealso: DM, DMPatchCreate() 16 S*/ 17 PETSC_EXTERN PetscErrorCode DMPatchCreate(MPI_Comm, DM*); 18 19 /* 20 * We want each patch to consist of an entire DM, DMDA at first 21 - We cannot afford to store much more than the data from a single patch in memory 22 - No global PetscSection, only PetscLayout 23 - Optional scatters 24 * There is a storable coarse level, which will also be a traditional DM (DMDA here) 25 * The local and global vectors correspond to a ghosted patch 26 * Need a way to activate a patch 27 * Jack in sizes for l/g vectors 28 - Need routine for viewing a full global vector 29 - Jed handles solver 30 */ 31 32 #endif 33