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# CHKERRMPI
Checks error code returned from MPI calls, if non-zero it calls the error handler and then returns 
## Synopsis
```
#include <petscerror.h>
void CHKERRMPI(PetscErrorCode ierr)
```
Not Collective


## Input Parameter

- ***ierr -*** nonzero error code, see the list of standard error codes in include/petscerror.h





## Note
Deprecated in favor of `PetscCallMPI()`. This routine behaves identically to it.


## See Also
 `PetscCallMPI()`

## Level
deprecated

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscerror.h.html#CHKERRMPI">include/petscerror.h</A>


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