# MatSeqAIJHIPSPARSEGetArrayRead
gives read-only access to the array where the device data for a MATSEQAIJHIPSPARSE matrix is stored Not Collective 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatSeqAIJHIPSPARSEGetArrayRead(Mat A, const PetscScalar **a)
```

## Input Parameter

- ***A -*** a MATSEQAIJHIPSPARSE matrix



## Output Parameter

- ***a -*** pointer to the device data




Notes: may trigger host-device copies if up-to-date matrix data is on host


## See Also
 `MatSeqAIJHIPSPARSEGetArray()`, `MatSeqAIJHIPSPARSEGetArrayWrite()`, `MatSeqAIJHIPSPARSERestoreArrayRead()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.cpp#MatSeqAIJHIPSPARSEGetArrayRead">src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.cpp</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.cpp)


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