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Jason Antic
21 lines
939 B
Python
21 lines
939 B
Python
from fastai.torch_core import *
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from fastai.basic_data import DataBunch
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from fastai.callback import *
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from fastai.basic_train import Learner, LearnerCallback
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from fastai.vision.gan import GANLearner
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class GANSaveCallback(LearnerCallback):
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"A `LearnerCallback` that saves history of metrics while training `learn` into CSV `filename`."
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def __init__(self, learn:GANLearner, learn_gen:Learner, filename:str, save_iters:int=1000):
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super().__init__(learn)
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self.learn_gen, self.filename, self.save_iters = learn_gen, filename, save_iters
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def on_batch_end(self, iteration:int, epoch:int, **kwargs)->None:
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if iteration == 0: return
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if iteration % self.save_iters == 0:
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self._save_gen_learner(iteration=iteration, epoch=epoch)
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def _save_gen_learner(self, iteration:int, epoch:int):
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fn = self.filename + '_' + str(epoch) + '_' + str(iteration)
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self.learn_gen.save(fn) |