adding cosine rewarmed scheduler #243
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Adding cosine rewarmed scheduler. Rewarming to where cosine would have been if running for the total number of steps - of both original and rewarmed runs.
There are two arguments that are used:
--cosine-rewarmed-target-steps- set the total number of steps.--cosine-rewarmed-original-warmup- number of warmup steps in the runs before rewarming. default: 1000.Choose
base_lrto be the base lr you would use in the run with total number of steps. The new base_lr is computed within the scheduler