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* Squash stage3 v1 (#146) Co-authored-by: Samyam <samyamr@microsoft.com> Co-authored-by: Jeff Rasley <jerasley@microsoft.com> Co-authored-by: Samyam Rajbhandari <samyamr@microsoft.com> Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com> Co-authored-by: Shaden Smith <Shaden.Smith@microsoft.com> Co-authored-by: Shaden Smith <ShadenTSmith@gmail.com> Co-authored-by: eltonzheng <eltonz@microsoft.com> * Fix correctness bug (#147) * formatting fix (#150) * stage3 bugfix (API) update and simplified FP16 Z3 tests (#151) * fp16 Z3 API update and bugfix * revert debug change * ZeRO-3 detach and race condition bugfixes (#149) * trying out ZeRO-3 race condition fix * CUDA sync instead of stream * reduction stream sync * remove commented code * Fix optimizer state_dict KeyError (#148) Co-authored-by: Jeff Rasley <jerasley@microsoft.com> * fix for smaller SGS sizes, ensures each grad is backed by unique tensors (#152) * Simplifying the logic for getting averaged gradients (#153) * skip for now * Z3 Docs redux (#154) * removing some TODOs and commented code (#155) * New Z3 defaults (#156) Co-authored-by: Jeff Rasley <jerasley@microsoft.com> * formatting * megatron external params Co-authored-by: Jeff Rasley <jerasley@microsoft.com> Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com> Co-authored-by: Shaden Smith <Shaden.Smith@microsoft.com> Co-authored-by: Shaden Smith <ShadenTSmith@gmail.com> Co-authored-by: eltonzheng <eltonz@microsoft.com>
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