Fix runaway Etpt in straggler detector by resetting FLOPs accumulator #2119
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Co-authored-by: Chen-Han Yu <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Co-authored-by: Shanmugam Ramasamy <[email protected]> Co-authored-by: Mcore Bot <[email protected]> Co-authored-by: Shanmugam Ramasamy <[email protected]> Co-authored-by: Siddharth Singh <[email protected]> Co-authored-by: Shanmugam Ramasamy <[email protected]>
…upport Co-authored-by: jianbinc <[email protected]> Co-authored-by: xuwenc <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Co-authored-by: Robert Kirby <[email protected]> Co-authored-by: oliver könig <[email protected]>
Co-authored-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
Co-authored-by: Siddharth Singh <[email protected]> Co-authored-by: oliver könig <[email protected]>
Co-authored-by: oliver könig <[email protected]>
Signed-off-by: Charlie Truong <[email protected]>
Co-authored-by: Mcore Bot <[email protected]> Co-authored-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
This reverts commit 7487c53.
Signed-off-by: oliver könig <[email protected]>
Signed-off-by: oliver könig <[email protected]>
The straggler detector's Etpt (estimated throughput) metric was growing linearly with iteration count, reaching unrealistic values like 147,000+ TF/s. Root Cause: In post_training_step_callbacks(), the code was setting the FLOPs counter to 0.0 but this reset was local to the function and not persisted back to the main training loop. The caller continued using the growing accumulator. Solution: - Modified post_training_step_callbacks() to return the updated FLOPs counter - Updated the call site to capture and use the returned (reset) counter - Added clear comments explaining the reset behavior This ensures the straggler detector gets accurate per-interval FLOPs measurements instead of cumulative values. Co-authored-by: Li Ruixiao <[email protected]> Signed-off-by: Santosh Bhavani <[email protected]>
sbhavani
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This PR fixes the same issue as #1755 - copying it to run CI against it. Previously was in "Final Review".
Problem
The straggler detector's Etpt (estimated throughput) metric was growing linearly with iteration count, reaching unrealistic values like 147,000+ TF/s (indicating impossible 147000%+ MFU).
Root Cause
In
post_training_step_callbacks(), the code was setting the FLOPs counter to 0.0 but this reset was local to the function and not persisted back to the main training loop. The caller continued using the growing accumulator.Solution
post_training_step_callbacks()to return the updated FLOPs counterThis ensures the straggler detector gets accurate per-interval FLOPs measurements instead of cumulative values.
Co-authored-by: Li Ruixiao [email protected]