Zero3 defragment utility#7940
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sfc-gh-truwase merged 14 commits intodeepspeedai:masterfrom Mar 31, 2026
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This reverts commit ff88670. Co-authored-by: nathon-lee <248585198+nathon-lee@users.noreply.github.com>
Revert "fix: update 1 file reformatted." (ff88670)
This reverts commit b90aee5.
Revert accidental Muon optimizer code re-introduction from copilot PRs
Signed-off-by: nathon-lee <leejianwoo@gmail.com> refactor(zero3): factor out defragment method to zero utils Signed-off-by: nathon-lee <leejianwoo@gmail.com>
sfc-gh-truwase
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Mar 31, 2026
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refactor(zero3): factor out defragment method to zero utils
Resolves a TODO in the codebase by extracting the
defragmentlogic outof
DeepSpeedZeroOptimizer_Stage3and moving it todeepspeed/runtime/zero/utils.pyas an independent utility function. This decouples the memory defragmentation logic
from the core optimizer class and improves code maintainability and reusability.