# DMShellSetGlobalToLocal
Sets the routines used to perform a global to local scatter 
## Synopsis
```
#include "petscdmshell.h"  
PetscErrorCode DMShellSetGlobalToLocal(DM dm, PetscErrorCode (*begin)(DM, Vec, InsertMode, Vec), PetscErrorCode (*end)(DM, Vec, InsertMode, Vec))
```
Logically Collective on dm

Input Parameters

- ***dm -*** the shell DM
- ***begin -*** the routine that begins the global to local scatter
- ***end -*** the routine that ends the global to local scatter



## Notes
If these functions are not provided but DMShellSetGlobalToLocalVecScatter() is called then
DMGlobalToLocalBeginDefaultShell()/DMGlobalToLocalEndDefaultShell() are used to to perform the transfers




## See Also
 `DMShellSetLocalToGlobal()`, `DMGlobalToLocalBeginDefaultShell()`, `DMGlobalToLocalEndDefaultShell()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/shell/dmshell.c.html#DMShellSetGlobalToLocal">src/dm/impls/shell/dmshell.c</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/shell/dmshell.c)


[Index of all DM routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
