DMShellSetLocalToLocal#

Sets the routines used to perform a local to local scatter

Synopsis#

#include "petscdmshell.h"  
PetscErrorCode DMShellSetLocalToLocal(DM dm, PetscErrorCode (*begin)(DM dm, Vec local, InsertMode mode, Vec nlocal), PetscErrorCode (*end)(DM dm, Vec local, InsertMode mode, Vec nlocal))

Logically Collective

Input Parameters#

dm - the DMSHELL
begin - the routine that begins the local to local scatter
end - the routine that ends the local to local scatter

Calling sequence of `begin`#

dm - the DM
local - the local Vec to be communicated
mode - insert mode of the resulting vector
nlocal - the local Vec to receive the result

Calling sequence of `end`#

dm - the DM
local - the local Vec to be communicated
mode - insert mode of the resulting vector
nlocal - the local Vec to receive the result

Note#

If these functions are not provided but DMShellSetLocalToLocalVecScatter() is called then DMLocalToLocalBeginDefaultShell()/DMLocalToLocalEndDefaultShell() are used to perform the transfers

Level#

advanced

Location#

src/dm/impls/shell/dmshell.c

Index of all DM routines
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Index of all manual pages