fix eager mode spmd module loading with fsdpv2 #7631
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JackCaoG
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Jul 12, 2024
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The problem is
module.tois always aempty+to_copy. in eager modeemptyis aexpandand will be evaluated directly. However this evulation will result in areplicatedsharding spec. Infsdpv2code, we incorrectly believe this tensor is intentionally replicated and fsdpv2 won't shard it.