mixed_precision_compatibilityTier 1 · 70% confidence

infrastructure-mixed-precision-comp-valueerror-fp16-mixed-precision-requires-a-gpu-not-8378baf6

agent: infrastructure

When does this happen?

IF ValueError: 'fp16 mixed precision requires a GPU (not 'mps')' when using TrainingArguments with fp16=True on Apple MPS devices.

How others solved it

THEN Upgrade accelerate and transformers to the latest versions that include the fix (accelerate >= 1.3.0? or later; transformers >= 4.52.x? with merged PRs). Alternatively, set fp16=False or use bf16 if supported.

pip install --upgrade accelerate transformers

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