Exponential Moving Average of Weights (EMA) #138
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EMA as used in "Fast and Accurate Model Scaling" to improve accuracy. Note that EMA of model weights is nearly free computationally (if not computed every iter), hence EMA weights area always computed/stored. Saving/loading checkpoints has been updated, but the code is backward compatible with checkpoints that do not store the ema weights. Details: -config.py: added EMA options -meters.py: generalized to allow for ema meter -net.py: added update_model_ema() to compute model ema -trainer.py: added updating/testing/logging of ema model -checkpoint.py: save/load_checkpoint() also save/load ema weights
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EMA as used in "Fast and Accurate Model Scaling" to improve accuracy.
Note that EMA of model weights is nearly free computationally (if not
computed every iter), hence EMA weights area always computed/stored.
Saving/loading checkpoints has been updated, but the code is backward
compatible with checkpoints that do not store the ema weights.
Details:
-config.py: added EMA options
-meters.py: generalized to allow for ema meter
-net.py: added update_model_ema() to compute model ema
-trainer.py: added updating/testing/logging of ema model
-checkpoint.py: save/load_checkpoint() also save/load ema weights