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Sporadic hang or freeze in CUDA kernels #50

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michel2323 opened this issue Apr 20, 2023 · 1 comment
Closed

Sporadic hang or freeze in CUDA kernels #50

michel2323 opened this issue Apr 20, 2023 · 1 comment

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@michel2323
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michel2323 commented Apr 20, 2023 •
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Over the course of development, we observed hangs and freezes in CUDA kernels that get stuck in thread synchronization. Please report any such issue here.

Current active investigations:

First reported by @lukeli1990 exanauts/ExaAdmm.jl#44

This can be reproduced by executing the tests here: https://github.com/exanauts/SQOPF.jl/tree/ms/debug

Using Julia 1.8 test/runtests.jl completes, but fails with ] test. This is resolved by using Julia 1.9.
@michel2323
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@kibaekkim @youngdae @lukeli1990 I'm closing this for now. Julia 1.9 does not trigger this, and it doesn't make sense IMO to chase a bug in old code. Just reopen if you disagree.

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