Fix quantize kernels on rocm 6.4 #4708
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+12
−10
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Summary: Interestingly, ROCM6.4 technically allows both OCP and FNUZ floating point formats. We have a check in our quantize kernels that sees if OCP formats are allowed and uses them if so. However, for pretty much any integration, FNUZ is still expected. This small diff fixes the behavior by checking env vars more carefully and exposes rowwise quantization on AMD to unit tests.
Differential Revision: D80309166