Fix "cudaErrorInvalidDevice: invalid device ordinal" in debug runs #4875
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seunghwak
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bug
jnke2016
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Jan 21, 2025
ChuckHastings
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Jan 21, 2025
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This PR should replace PR #4872.
Louvain currently fails when built in the debug mode with an error message saying "cudaErrorInvalidDevice: invalid device ordinal".
This is due to a CUDA block size (set to 512) too large for debug runs due to resource limitations. This PR reduces the block sizes from 512 to 256.
Closes #4806
Closes #4873