I also noticed that the option of FP8 operand and FP16 accumulator is excluded in ss_op_selector and rs_op_selector, even though this is accommodated by the PTX ISA and otherwise has MMA_Traits structs defined for it (F16E4M3E4M3 etc.). This is done by the following code:

[ylz1104]

          I also noticed that the option of FP8 operand and FP16 accumulator is excluded in `ss_op_selector` and `rs_op_selector`, even though this is accommodated by the PTX ISA and otherwise has `MMA_Traits` structs defined for it (F16E4M3E4M3 etc.). This is done by the following code:

// FP16 accumulator
  if constexpr (is_same_v<ElementC, half_t>) {
    static_assert(is_same_v<ElementA, half_t>, "Element types for AB must be half if ElementC is half.");
    static_assert(is_same_v<ElementB, half_t>, "Element types for AB must be half if ElementC is half.");

Was this intentional or is this an oversight?

Originally posted by @jayhshah in #1268 (comment)

[thakkarV]

just an oversight. we do not really have a use for them today, but if you do you are welcome to add them or ask us to add them.