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ROCm / HIP-CPU

An implementation of HIP that works on CPUs, across OSes.
MIT License
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Support for AddressSanitizer #22

Open lanwatch opened 3 years ago

lanwatch commented 3 years ago

Since HIP-CPU uses libco fiber mechanism to mimic GPU thread behaviour, the stack gets constantly re-written and that leads to ASan reporting false positives all over the place.

Seems like there is a way to annotate fibers that other coroutine libraries use, see this, this or this.

Maybe the solution would be to have different backends for other coroutine libraries? Eventually we would want to use the std version, if that makes sense.

AlexVlx commented 2 years ago

@lanwatch thank you for reporting this and apologies for the delay in picking it up. Quick question, do you happen to have a repro handy? I suspect that this manifests for a particular situation, involving multiple __syncthreads() calls in the same kernel? Thanks.