[FSDP2] Clamp reduce_dtype
in lazy init
#143297
Closed
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Stack from ghstack (oldest at bottom):
reduce_dtype
in lazy init #143297fixes #143277 by moving the clamp of
reduce_dtype
toNone
to lazy init (same place as whereparam_dtype
can be clamped toNone
)cc @H-Huang @kwen2501 @wanchaol @fegin @fduwjj @wz337 @wconstab @d4l3k @c-p-i-o