Fix mixed precision call in group norm sharded. #1380
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…ow variances are combined across GPUs.
coreyjadams
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Feb 6, 2026
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| if weight is not None: | ||
| weight = weight.to(input.dtype) | ||
| if bias is not None: | ||
| bias = bias.to(input.dtype) | ||
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This fixes a mixed precision crash.
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Also fix a math error in how variances are combined across GPUs.
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