adds barriers after checkpoint saving #566
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non-rank-0 processes were continuing on and waiting for rank-0 forward, while rank 0 was saving artifacts. This was leading to collective timeouts. In testing, this reduced the incidence of timeouts because non-rank-0 processes are waiting at a known wait-point. Signed-off-by: James Kunstle <[email protected]>
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E2E (NVIDIA L40S x4) workflow launched on this PR: View run |
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e2e workflow succeeded on this PR: View run, congrats! |
RobotSail
approved these changes
May 27, 2025
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non-rank-0 processes were continuing on and waiting for rank-0 forward, while rank 0 was saving artifacts. This was leading to collective timeouts. In testing, adding these barriers reduced the incidence of timeouts because non-rank-0 processes are waiting at a known wait-point.