Add option to skip float32 promotion when computing means and variances for normalization. #3873
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…es for normalization. Currently `flax.linen.normalization` automatically computes means and standard deviations to float32 for numerical stability, especially for training. However; we would like to add an option to disable this, to enable the use of other compute dtypes like bfloat16 to decrease inference memory allocations. PiperOrigin-RevId: 627207329
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Add option to skip float32 promotion when computing means and variances for normalization.
Currently
flax.linen.normalizationautomatically computes means and standard deviations to float32 for numerical stability, especially for training. However; we would like to add an option to disable this, to enable the use of other compute dtypes like bfloat16 to decrease inference memory allocations.