petsc-3.10.5 2019-03-28
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# DMLocalToLocalBeginDefaultShell

Uses the LocalToLocal VecScatter context set by the user to begin a local to local scatter Collective

### Synopsis

    #include "petscdmshell.h"
    PetscErrorCode DMLocalToLocalBeginDefaultShell(DM dm,Vec g,InsertMode mode,Vec l)

### Input Arguments

| dm | - shell DM
| g | - the original local vector
| mode | - InsertMode

### Output Parameter

l -the local vector with correct ghost values

Note: This is not normally called directly by user code, generally user code calls DMLocalToLocalBegin() and DMLocalToLocalEnd(). If the user provides their own custom routines to DMShellSetLocalToLocal() then those routines might have reason to call this function.

### See Also

DMLocalToLocalEndDefaultShell()

### Level

advanced

### Location

src/dm/impls/shell/dmshell.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages