# PCMGGalerkinSetMatProductAlgorithm
Set type of SpGEMM for hypre to use on GPUs 
## Synopsis
```
#include "petscpc.h" 
PetscErrorCode PCMGGalerkinSetMatProductAlgorithm(PC pc, const char name[])
```
Logically Collective


## Input Parameters

- ***pc -*** the hypre context
- ***type -*** one of 'cusparse', 'hypre'



## Options Database Key

- ***-pc_mg_galerkin_mat_product_algorithm <cusparse,hypre> -*** Type of SpGEMM to use in hypre





## Developer Note
How the name starts with `PCMG`, should it not be `PCHYPREBoomerAMG`?


## See Also
 `PCHYPRE`, `PCMGGalerkinGetMatProductAlgorithm()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/hypre/hypre.c.html#PCMGGalerkinSetMatProductAlgorithm">src/ksp/pc/impls/hypre/hypre.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/hypre/hypre.c)


[Index of all PC routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
