:orphan:
# MatStashGetInfo
Gets how many values are currently in the matrix stash, i.e. need to be communicated to other processors during the `MatAssemblyBegin()`/`MatAssemblyEnd()` process 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatStashGetInfo(Mat mat, PetscInt *nstash, PetscInt *reallocs, PetscInt *bnstash, PetscInt *breallocs)
```
Not Collective


## Input Parameter

- ***mat -*** the matrix



## Output Parameters

- ***nstash   -*** the size of the stash
- ***reallocs -*** the number of additional mallocs incurred.
- ***bnstash   -*** the size of the block stash
- ***breallocs -*** the number of additional mallocs incurred.in the block stash





## See Also
 [](ch_matrices), `MatAssemblyBegin()`, `MatAssemblyEnd()`, `Mat`, `MatStashSetInitialSize()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/interface/matrix.c.html#MatStashGetInfo">src/mat/interface/matrix.c</A>


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