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Disable AMP by default on CPU #9218

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Disable AMP by default on CPU #9218

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ef6b22a
disable amp by default on cpu
haifeng-jin May 20, 2025
79f66aa
throw a warning when AMP not used
haifeng-jin May 22, 2025
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4 changes: 4 additions & 0 deletions benchmarks/torchbench_model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -373,6 +373,10 @@ def is_accelerator_tpu(self):
return self.benchmark_experiment.accelerator == "tpu"

def use_amp(self):
# AMP is only supported on cuda and tpu, not on cpu.
if self.benchmark_experiment.accelerator == "cpu":
logger.warning("AMP is not used due to running on CPU.")
return False
return self.is_training() or self.model_name in config(
).dtype.force_amp_for_fp16_bf16_models

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