Comments (1)
gramalingam
commented on September 24, 2024
Good question! It is a bit mystifying. Looking at the rest of the spec., my interpretation is that axis is a relevant attribute only when not doing a per-tensor quantization (that is, when doing a per-axis or blocked-quantization). And that rank of the x_scale input is being used to determine if it is per-tensor quantization or not. And that the default-value of axis applies only if it is not per-tensor quantization.
It would be great to improve the documentation, but the behavior seems reasonable (with some minor tradeoff to having a default-value ... it might have been better not to have a default-value and produced a warning message if the attribute is specified for per-tensor quantization).
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