Support store_param_remainders feature from Apex in TE Fused Adam
#1408
+221
−6
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Signed-off-by: Selvaraj Anandaraj <[email protected]>
Signed-off-by: Selvaraj Anandaraj <[email protected]>
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Description
When the master parameter is in FP32 and the model parameters are in BF16, we can store the trailing 16 remainder bits and reconstruct the master FP32 param from (BF16 model param + the remainder).
This helps us half the master parameter memory usage.