Disable reuse endpoints with UCX >= 1.11 #620
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pentschev
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3 - Ready for Review
quasiben
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May 21, 2021
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@gpucibot merge |
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Thanks @quasiben ! |
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The UCX-Py endpoint reuse is not anymore necessary, so we also disable that for UCX 1.11+. The primary reason it was introduced was to circumvent an issue with CUDA IPC that was resolved by openucx/ucx#6360. Using the endpoint reuse class has also proven to be very slow, taking a long time to initialize for clusters with just a few dozen workers and pretty much unusable for a cluster in the order of 100 workers.