#include "petscdm.h" #include "petscdmlabel.h" #include "petscds.h" PetscErrorCode DMLocalToGlobalBegin(DM dm,Vec l,InsertMode mode,Vec g)Neighbor-wise Collective on DM
| dm | - the DM object | |
| l | - the local vector | |
| mode | - if INSERT_VALUES then no parallel communication is used, if ADD_VALUES then all ghost points from the same base point accumulate into that base point. | |
| g | - the global vector |
Notes: In the ADD_VALUES case you normally would zero the receiving vector before beginning this operation. INSERT_VALUES is not supported for DMDA, in that case simply compute the values directly into a global vector instead of a local one.
Level:beginner
Location:src/dm/interface/dm.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages