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Z3: Support for activation ckpt with frozen params - #8148

Merged

sfc-gh-truwase merged 15 commits into

sfc-gh-truwase/ds_8130

Jul 22, 2026

Commits on Jul 20, 2026

Z3 activation-ckpt with frozen params
sfc-gh-truwase
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6920dd9
cleanup
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e855752
Cleanup
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b6ec652
fix data race
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c838dac
formatting
sfc-gh-truwase
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6f5a024
Fix frozen-param release edge cases in ZeRO-3 activation checkpointing

sfc-gh-truwase
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cursoragent
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56593d2
Add tothana's UT
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335e93d
Silence ZeRO param-coordinator debug prints (force=False)

sfc-gh-truwase
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cursoragent
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62a175f
Formatting
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8dd26ae
Skip fp16 lifecycle test when accelerator lacks fp16 support

sfc-gh-truwase
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cursoragent
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93a1f1f

Commits on Jul 22, 2026

Keep persistent frozen params resident during activation-ckpt recompute

sfc-gh-truwase
and
cursoragent
committed
a78dd6e