Just tested and it doesn't work out of the box on the consumer 50 series ie. 5080:

    Testing GEMM:
    Assertion failed: 
    deep_gemm/jit/../include/deep_gemm/fp8_gemm.cuh:369, condition: cudaFuncSetAttribute(kernel, 
 cudaFuncAttributeMaxDynamicSharedMemorySize, smem_size) == cudaSuccess
    terminate called after throwing an instance of 
    'AssertionException'
      what():  Assertion failed: cudaFuncSetAttribute(kernel, cudaFuncAttributeMaxDynamicSharedMemorySize, smem_size) == cudaSuccess