fix: compatibility with torch<=2.7 (#46393)
* fix: compatibility with no-fp8 torch
Signed-off-by: Hao Lin <linhaomails@gmail.com>
* fix: raise if scale_fmt is fp8 without fp8 support
Signed-off-by: Hao Lin <linhaomails@gmail.com>
* fix: lint error
Signed-off-by: Hao Lin <linhaomails@gmail.com>
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Signed-off-by: Hao Lin <linhaomails@gmail.com>
