Looking for MG solver for sparse matrix on GPU

Specific Domains Modelling & Simulations
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1

Hey,

I’m looking for an algebraic multigrid solver that run on GPU. The AlgebraicMultigrid.jl package is not compatible with CUDA and I can’t find other package. I could use the AMGX library in Cuda and C++ but then I’ll have to rewrite a large part of my code.

Does somebody know a julia package for this ?

Thank you

2

I am not aware of a Julia package for this. You can call the C++ solver from Julia. I have implemented a baby GMG in Julia but I guess that your AMG choice is strongly constrained.

3

On juliahub I found AMGX.jl

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4

OMG ! Thank you so much ! I don’t know why I did not try to type AMGX.jl !

1 Like
5

Hi Ludovic,

Did you try to use the AMGX.jl? Your impressions, if you could share?

Cheers

6

Hi Niceno,

I did not use this package, I changed the description of the problem and now use a simple iterative solver.

Sorry,

Best

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7

But still something on GPUs?

8

yes, I just made a very simple iterative Jacobi solver, nothing optimized but it is ok for me now.

1 Like