How can I find out which int8 SIMD instructions are available in CC 9.0?

Accelerated Computing CUDA CUDA Programming and Performance
1

I would like to use int8 SIMD instructions on programming in CC9.0 (H100). (e.g. VABSDIFF4.U8)
But I don’t know how to find the SIMD instructions available on CC9.0.
Can you please tell me which int8 SIMD instructions are available on CC9.0 or where I can find a list of them?

2

Here you can find a list for Hopper (compute capability 9.0):

VABSDIFF4 is included.

Other supported int8 instructions are I2F (Integer-To-Float Conversion) and IDP/IDP4A (Integer Dot Product).

And of course the Tensor Cores.

You can also look into the PTX manual

https://docs.nvidia.com/cuda/parallel-thread-execution/index.html

whether they mention a performance degradation for certain sm_xx for a specific PTX instruction.