Multi-GPU support

[mhtrinhLIC]

Does SuiteSparse take advantage of multi-GPU ? I could not find any documentation about how to use multiple GPU.

I did some trial with the cholmod_l_demo. Using CUDA_VISIBLE_DEVICES, I can force which GPU to use. But when I put multiple gpuId in CUDA_VISIBLE_DEVICES, only the first GPU is used

[DrTimothyAldenDavis]

It only uses one gpu

On Sat, Sep 11, 2021 at 7:20 AM Hieu Trinh @.***> wrote:

Does SuiteSparse take advantage of multi-GPU ? I could not find any documentation about how to use multiple GPU.

I did some trial with the cholmod_l_demo. Using CUDA_VISIBLE_DEVICES, I can force which GPU to use. But when I put multiple gpuId in CUDA_VISIBLE_DEVICES, only the first GPU is used

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[mhtrinhLIC]

It only uses one gpu

That's a shame ...

I saw from this presentation that it's possible to run Multi-GPU with version 4.6.0 BETA Is there any plan on porting that to current branch ?

Would you have a sample code that use multi-GPU with version 4.6.0 BETA ?

[DrTimothyAldenDavis]

4.6.0beta isn't ready for production use. It still needs additional testing.