[Cutlass profiler] Fix SM100 FP8 nosmem epilogue shape_div “Divisibility Condition” for non‑multiple‑of‑64 N tiles

[aidando73]

I'm getting this error trying to generate e4m3 fp8 kernels for SM100:

/home/aidan/fireworks/cutlass/include/cute/int_tuple.hpp(408): error: static assertion failed with "Divisibility Condition"
        static_assert(((IntTupleA::value % IntTupleB::value) == 0) or ((IntTupleB::value % IntTupleA::value) == 0), "Divisibility Condition");
        ^
          detected during:
            instantiation of "auto cute::shape_div(const IntTupleA &, const IntTupleB &) [with IntTupleA=cute::_136, IntTupleB=cute::_64]" at line 391
            instantiation of function "lambda [](const auto &, const auto &)->auto [with <auto-1>=cute::_136, <auto-2>=cute::_64]" at line 109 of /home/aidan/fireworks/cutlass/include/cute/algorithm/tuple_algorithms.hpp
            instantiation of "auto cute::detail::tapply(T0 &&, T1 &&, F &&, G &&, cute::seq<I...>) [with T0=const cute::tuple<cute::_64, cute::_136> &, T1=const cute::tuple<cute::C<64>, cute::C<64>> &, F=lambda [](const auto &, const auto &)->auto &, G=lambda [](const auto &...)->auto, I=<0, 1>]" at line 225 of /home/aidan/fireworks/cutlass/include/cute/algorithm/tuple_algorithms.hpp
            instantiation of "auto cute::transform(const T0 &, const T1 &, F &&) [with T0=cute::tuple<cute::_64, cute::_136>, T1=cute::tuple<cute::C<64>, cute::C<64>>, F=lambda [](const auto &, const auto &)->auto]" at line 391
            instantiation of "auto cute::shape_div(const IntTupleA &, const IntTupleB &) [with IntTupleA=cute::tuple<cute::_64, cute::_136>, IntTupleB=cute::tuple<cute::C<64>, cute::C<64>>]" at line 1499 of /home/aidan/fireworks/cutlass/include/cutlass/epilogue/collective/builders/sm100_builder.inl
            instantiation of class "cutlass::epilogue::collective::CollectiveBuilder<cutlass::arch::Sm100, OpClass, MmaTileShape_MNK, ClusterShape_MNK, EpilogueTileType, ElementAccumulator, ElementCompute, ElementC_, GmemLayoutTagC_, AlignmentC, ElementD, GmemLayoutTagD, AlignmentD, EpilogueScheduleType, FusionOpOrCallbacks, std::enable_if_t<<expression>, void>> [with OpClass=cutlass::arch::OpClassTensorOp, MmaTileShape_MNK=cute::tuple<cute::_64, cute::_136, cute::_128>, ClusterShape_MNK=cute::tuple<cute::_1, cute::_1, cute::_1>, EpilogueTileType=cutlass::epilogue::collective::EpilogueTileAuto, ElementAccumulator=float, ElementCompute=float, ElementC_=void, GmemLayoutTagC_=cutlass::layout::ColumnMajor, AlignmentC=1, ElementD=cutlass::bfloat16_t, GmemLayoutTagD=cutlass::layout::ColumnMajor, AlignmentD=1, EpilogueScheduleType=cutlass::epilogue::NoSmemWarpSpecialized1Sm, FusionOpOrCallbacks=cutlass::epilogue::fusion::LinearCombination<cutlass::bfloat16_t, float, void, float, cutlass::FloatRoundStyle::round_to_nearest>]" at line 1501 of /home/aidan/fireworks/cutlass/include/cutlass/epilogue/collective/builders/sm100_builder.inl
            instantiation of class "cutlass::epilogue::collective::CollectiveBuilder<cutlass::arch::Sm100, OpClass, MmaTileShape_MNK, ClusterShape_MNK, EpilogueTileType, ElementAccumulator, ElementCompute, ElementC_, GmemLayoutTagC_, AlignmentC, ElementD, GmemLayoutTagD, AlignmentD, EpilogueScheduleType, FusionOpOrCallbacks, std::enable_if_t<<expression>, void>> [with OpClass=cutlass::arch::OpClassTensorOp, MmaTileShape_MNK=cute::tuple<cute::_64, cute::_136, cute::_128>, ClusterShape_MNK=cute::tuple<cute::_1, cute::_1, cute::_1>, EpilogueTileType=cutlass::epilogue::collective::EpilogueTileAuto, ElementAccumulator=float, ElementCompute=float, ElementC_=void, GmemLayoutTagC_=cutlass::layout::ColumnMajor, AlignmentC=1, ElementD=cutlass::bfloat16_t, GmemLayoutTagD=cutlass::layout::ColumnMajor, AlignmentD=1, EpilogueScheduleType=cutlass::epilogue::NoSmemWarpSpecialized1Sm, FusionOpOrCallbacks=cutlass::epilogue::fusion::LinearCombination<cutlass::bfloat16_t, float, void, float, cutlass::FloatRoundStyle::round_to_nearest>]" at line 46 of /home/aidan/fireworks/tools/library/generated/gemm/100/void_gemm_e4m3/cutlass3x_sm100_tensorop_gemm_e4m3_e4m3_f32_void_bf16_64x136x128_1x1x1_0_tnn_align8_cpasync_1sm_epi_nosmem.cu

This PR fixes it - relevant line is here: https://github.com/aidando73/cutlass-1/blob/a1dfe3f4935d80726c95bae8a56c2a2c5280e73d/include/cutlass/epilogue/collective/builders/sm100_builder.inl#L1499

E.g., if CtaTileShape_MNK: (64, 136, _) and EpilogueTile: (64, 64) then this assert fails:

https://github.com/aidando73/cutlass-1/blob/a1dfe3f4935d80726c95bae8a56c2a2c5280e73d/include/cute/int_tuple.hpp#L408

And since EpilogueTile[1] is min(64, cta_n) - there's two cases:

• If cta_n <= 64, EpilogueTile[1] == CtaTileShape_MNK[1] -> assert passes
• If cta_n > 64, EpilogueTile[1]=64, thus CtaTileShape_MNK[1] must be divisible by 64

[aidando73]

cc @hwu36 @depaulmillz