port true bf16 training into forge experiment #1775
Merged
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Unfortunately I went out on leave after opening #1646 so never actually finished it out to enable bf16 training in the forge experiment, which is what we ultimately wanted (thanks to @joecummings and @tianyu-l for pushing it through).
I also see there was some discussion on the original PR which I belatedly responded to. If there are still concerns there let me know. Otherwise if we are not gonna revert that PR we should at least that one so that forge can reap the benefits as intended.