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Update optim.py (#1366)

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zr_jin 2023-11-03 12:06:29 +08:00 committed by GitHub
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commit 231bbcd2b6
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egs/librispeech/ASR/zipformer/optim.py
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@ -466,6 +466,8 @@ class ScaledAdam(BatchedOptimizer):
quartiles.append(sorted_norms[index].item()) quartiles.append(sorted_norms[index].item())
median = quartiles[2] median = quartiles[2]
if median - median != 0:
raise RuntimeError("Too many grads were not finite")
threshold = clipping_scale * median threshold = clipping_scale * median
if step in irregular_estimate_steps: if step in irregular_estimate_steps:
# use larger thresholds on first few steps of estimating threshold, # use larger thresholds on first few steps of estimating threshold,