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Support FSDP in JAX workloads #797

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priyakasimbeg opened this issue Oct 17, 2024 · 0 comments
Open

Support FSDP in JAX workloads #797

priyakasimbeg opened this issue Oct 17, 2024 · 0 comments

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@priyakasimbeg
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It is useful to shard optimizer state across devices (to save significant memory). This reflects current practice. We want to support it.

  • We want to switch from no sharding to naive model parameter sharding in both framworks.
  • We will forbid (in the rules) any hacks that change the model parallelization strategy and have workload-default sharding.
  • Allow submitters to opt-out of it on a per-workload basis.
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