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Minimal HYPRE CUDA Example #1047

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almaeder opened this issue Jan 7, 2024 · 0 comments
Open

Minimal HYPRE CUDA Example #1047

almaeder opened this issue Jan 7, 2024 · 0 comments

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@almaeder
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almaeder commented Jan 7, 2024

minimal_main_hypre.zip
I have installed HYPRE on the Piz Daint supercomputer. A minimal CG code with a diagonal matrix is tested.
I have encountered the following problems:
HYPRE runs fine on the HOST for any matrix sizes,
but there is an error on the DEVICE for matrix sizes above 1024=2^10
when creating the RHS and solution vectors with HYPRE_IJVectorSetValues.
terminate called after throwing an instance of 'thrust::system::system_error' what(): radix_sort: failed on 2nd step: cudaErrorMissingConfiguration: __global__ function call is not configured
I would be glad to get assistance.

Edit: On a local machine the error is not encountered.

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