:orphan:
# MatAIJGetLocalMat
Creates a `MATSEQAIJ` from a `MATAIJ` matrix by taking its local rows and putting them into a sequential matrix with mlocal rows and n columns. Where mlocal is obtained with `MatGetLocalSize()` and n is the global column count obtained with `MatGetSize()` 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatAIJGetLocalMat(Mat A, Mat *A_loc)
```
Not Collective


## Input Parameter

- ***A -*** the matrix



## Output Parameter

- ***A_loc -*** the local sequential matrix generated





## Notes
In other words combines the two parts of a parallel `MATMPIAIJ` matrix on each process to a single matrix.

Destroy the matrix with `MatDestroy()`


## See Also
 [](ch_matrices), `Mat`, `MatMPIAIJGetLocalMat()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/mpi/mpiaij.c.html#MatAIJGetLocalMat">src/mat/impls/aij/mpi/mpiaij.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/impls/aij/mpi/mpiaij.c)


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