# DMGlobalToLocalBeginDefaultShell
Uses the GlobalToLocal VecScatter context set by the user to begin a global to local scatter Collective 
## Synopsis
```
#include "petscdmshell.h"  
PetscErrorCode DMGlobalToLocalBeginDefaultShell(DM dm, Vec g, InsertMode mode, Vec l)
```

## Input Parameters

- ***dm -*** shell DM
- ***g -*** global vector
- ***mode -*** InsertMode
- ***l -*** local vector




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


## See Also
 `DMGlobalToLocalEndDefaultShell()`

## Level
advanced

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


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[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)  
