device_batched_gemm_xdl_fpAintB_b_scale.hpp Source File

device_batched_gemm_xdl_fpAintB_b_scale.hpp Source File#

Composable Kernel: device_batched_gemm_xdl_fpAintB_b_scale.hpp Source File
// SPDX-License-Identifier: MIT
// Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
 
#pragma once
 
#include <iostream>
#include <sstream>
 
#include "ck/utility/common_header.hpp"
#include "ck/tensor_description/tensor_descriptor.hpp"
#include "ck/tensor_description/tensor_descriptor_helper.hpp"
#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
#include "ck/tensor_operation/gpu/device/device_batched_gemm.hpp"
#include "ck/tensor_operation/gpu/device/gemm_specialization.hpp"
#include "ck/tensor_operation/gpu/grid/gridwise_gemm_xdl_cshuffle_v3_b_scale.hpp"
#include "ck/host_utility/device_prop.hpp"
#include "ck/host_utility/kernel_launch.hpp"
#include "ck/host_utility/flush_cache.hpp"
 
namespace ck {
 
// Currently we do not have a elegant way to put single lds buffer & double lds buffer pipe in same
// kernel function Blockers:
// 1. Two separted declaration of __shared__ pointer is the key to make sure data access operate on
// two lds chunks.
// 2. Occupied __shared__ won't release until whole shader end, a.k.a AB and C may not use same lds
// buffer when we declare __shared__ inside blkgemmpipe
template <typename GridwiseGemm,
          typename BatchedGemmArg,
          bool HasMainKBlockLoop,
          InMemoryDataOperationEnum CGlobalMemoryDataOperation,
          index_t MinimumOccupancy = 1,
          TailNumber TailNum       = TailNumber::Full>
__global__ void
#if CK_USE_LAUNCH_BOUNDS
__launch_bounds__(CK_MAX_THREAD_PER_BLOCK, MinimumOccupancy)
#endif
    kernel_batched_gemm_b_scale_xdl_cshuffle_v3(BatchedGemmArg karg)
{
#if defined(__gfx9__) || defined(__gfx11__) || defined(__gfx12__)
    if constexpr(GridwiseGemm::template IsValidCompilationParameter<CGlobalMemoryDataOperation>())
    {
        __shared__ char p_shared[GridwiseGemm::GetSharedMemoryNumberOfByte()];
 
        const index_t g_idx = blockIdx.z % karg.Batch;
        const index_t k_idx = blockIdx.z / karg.Batch;
 
        const auto a_batch_offset = karg.compute_ptr_offset_of_batch.GetAPtrOffset(g_idx);
        const auto b_batch_offset = karg.compute_ptr_offset_of_batch.GetBPtrOffset(g_idx);
        const auto c_batch_offset = karg.compute_ptr_offset_of_batch.GetCPtrOffset(g_idx);
        const auto b_scale_batch_offset =
            karg.compute_ptr_offset_of_batch.GetSacleBPtrOffset(g_idx);
 
        auto splitk_batch_offset = typename GridwiseGemm::SplitKBatchOffset(karg, k_idx);
 
        GridwiseGemm::template Run<HasMainKBlockLoop, CGlobalMemoryDataOperation, TailNum>(
            karg.p_a_grid + a_batch_offset + splitk_batch_offset.a_k_split_offset,
            karg.p_b_grid + b_batch_offset + splitk_batch_offset.b_k_split_offset,
            karg.p_c_grid + c_batch_offset + splitk_batch_offset.c_reduce_offset,
            karg.p_b_scale_grid + b_scale_batch_offset + splitk_batch_offset.scale_k_split_offset,
            p_shared,
            karg);
    }
#else
    ignore = karg;
#endif // end of if (defined(__gfx9__))
}
 
template <typename GridwiseGemm,
          typename BatchedGemmArg,
          bool HasMainKBlockLoop,
          InMemoryDataOperationEnum CGlobalMemoryDataOperation,
          index_t MinimumOccupancy = 1,
          TailNumber TailNum       = TailNumber::Full>
__global__ void
#if CK_USE_LAUNCH_BOUNDS
__launch_bounds__(CK_MAX_THREAD_PER_BLOCK, MinimumOccupancy)
#endif
    kernel_batched_gemm_b_scale_xdl_cshuffle_v3_2lds(BatchedGemmArg karg)
{
#if defined(__gfx9__) || defined(__gfx11__) || defined(__gfx12__)
    if constexpr(GridwiseGemm::template IsValidCompilationParameter<CGlobalMemoryDataOperation>())
    {
        // Pass two lds pointer is the key to tell compiler that ds_read/write
        // operate on different lds chunk at same time without order dependecy
        __shared__ char p_shared_0[GridwiseGemm::GetSharedMemoryNumberOfByte()];
        __shared__ char p_shared_1[GridwiseGemm::GetSharedMemoryNumberOfByte()];
 
        const index_t g_idx = blockIdx.z % karg.Batch;
        const index_t k_idx = blockIdx.z / karg.Batch;
 
        const auto a_batch_offset = karg.compute_ptr_offset_of_batch.GetAPtrOffset(g_idx);
        const auto b_batch_offset = karg.compute_ptr_offset_of_batch.GetBPtrOffset(g_idx);
        const auto c_batch_offset = karg.compute_ptr_offset_of_batch.GetCPtrOffset(g_idx);
        const auto b_scale_batch_offset =
            karg.compute_ptr_offset_of_batch.GetSacleBPtrOffset(g_idx);
 
        auto splitk_batch_offset = typename GridwiseGemm::SplitKBatchOffset(karg, k_idx);
 
        GridwiseGemm::template Run_2Lds<HasMainKBlockLoop, CGlobalMemoryDataOperation, TailNum>(
            karg.p_a_grid + a_batch_offset + splitk_batch_offset.a_k_split_offset,
            karg.p_b_grid + b_batch_offset + splitk_batch_offset.b_k_split_offset,
            karg.p_c_grid + c_batch_offset + splitk_batch_offset.c_reduce_offset,
            karg.p_b_scale_grid + b_scale_batch_offset + splitk_batch_offset.scale_k_split_offset,
            p_shared_0,
            p_shared_1,
            karg);
    }
#else
    ignore = karg;
#endif // end of if (defined(__gfx9__))
}
 
namespace tensor_operation {
namespace device {
 
template <typename ALayout,
          typename BLayout,
          typename CLayout,
          typename ADataType,
          typename BDataType,
          typename BScaleDataType,
          typename CDataType,
          typename GemmAccDataType,
          typename CShuffleDataType,
          typename AElementwiseOperation,
          typename BElementwiseOperation,
          typename CElementwiseOperation,
          GemmSpecialization GemmSpec,
          index_t BlockSize,
          index_t ScaleBlockN, // scale block for N
          index_t ScaleBlockK, // scale block for K
          index_t MPerBlock,
          index_t NPerBlock,
          index_t KPerBlock,
          index_t AK1,
          index_t BK1,
          index_t MPerXDL,
          index_t NPerXDL,
          index_t MXdlPerWave,
          index_t NXdlPerWave,
          typename ABlockTransferThreadClusterLengths_AK0_M_AK1,
          typename ABlockTransferThreadClusterArrangeOrder,
          typename ABlockTransferSrcAccessOrder,
          index_t ABlockTransferSrcVectorDim,
          index_t ABlockTransferSrcScalarPerVector,
          index_t ABlockTransferDstScalarPerVector_AK1,
          bool ABlockLdsExtraM,
          typename BBlockTransferThreadClusterLengths_BK0_N_BK1,
          typename BBlockTransferThreadClusterArrangeOrder,
          typename BBlockTransferSrcAccessOrder,
          index_t BBlockTransferSrcVectorDim,
          index_t BBlockTransferSrcScalarPerVector,
          index_t BBlockTransferDstScalarPerVector_BK1,
          bool BBlockLdsExtraN,
          index_t CShuffleMXdlPerWavePerShuffle,
          index_t CShuffleNXdlPerWavePerShuffle,
          typename CShuffleBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock,
          index_t CShuffleBlockTransferScalarPerVector_NPerBlock,
          BlockGemmPipelineScheduler BlkGemmPipeSched = BlockGemmPipelineScheduler::Intrawave,
          BlockGemmPipelineVersion BlkGemmPipelineVer = BlockGemmPipelineVersion::v1,
          typename ComputeTypeA                       = CDataType,
          typename ComputeTypeB                       = ComputeTypeA,
          bool PermuteA                               = false,
          bool PermuteB                               = false>
struct DeviceBatchedGemm_Xdl_CShuffleV3_BScale
    : public DeviceBatchedGemmV2BScale<ALayout,
                                       BLayout,
                                       CLayout,
                                       ADataType,
                                       BDataType,
                                       BScaleDataType,
                                       CDataType,
                                       ScaleBlockN,
                                       ScaleBlockK,
                                       AElementwiseOperation,
                                       BElementwiseOperation,
                                       CElementwiseOperation>
{
    GET_NXDL_PER_WAVE_IMPL
    static constexpr auto NXdlPerWave64 = GetNXdlPerWave<true>();
    static constexpr auto NXdlPerWave32 = GetNXdlPerWave<false>();
 
    // GridwiseGemm
    template <index_t NXdlPerWave_>
    using GridwiseGemmBase = GridwiseGemm_xdl_cshuffle_v3<
        ALayout,
        BLayout,
        CLayout,
        ADataType,
        BDataType,
        GemmAccDataType,
        CShuffleDataType,
        CDataType,
        AElementwiseOperation,
        BElementwiseOperation,
        CElementwiseOperation,
        GemmSpec,
        BlockSize,
        ScaleBlockN,
        ScaleBlockK,
        MPerBlock,
        NPerBlock,
        KPerBlock,
        AK1,
        BK1,
        MPerXDL,
        NPerXDL,
        MXdlPerWave,
        NXdlPerWave_,
        ABlockTransferThreadClusterLengths_AK0_M_AK1,
        ABlockTransferThreadClusterArrangeOrder,
        ABlockTransferSrcAccessOrder,
        ABlockTransferSrcVectorDim,
        ABlockTransferSrcScalarPerVector,
        ABlockTransferDstScalarPerVector_AK1,
        false,
        ABlockLdsExtraM,
        BBlockTransferThreadClusterLengths_BK0_N_BK1,
        BBlockTransferThreadClusterArrangeOrder,
        BBlockTransferSrcAccessOrder,
        BBlockTransferSrcVectorDim,
        BBlockTransferSrcScalarPerVector,
        BBlockTransferDstScalarPerVector_BK1,
        false,
        BBlockLdsExtraN,
        CShuffleMXdlPerWavePerShuffle,
        CShuffleNXdlPerWavePerShuffle,
        CShuffleBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock,
        CShuffleBlockTransferScalarPerVector_NPerBlock,
        BlkGemmPipeSched,
        BlkGemmPipelineVer,
        ComputeTypeA,
        ComputeTypeB,
        PermuteA,
        PermuteB>;
    using GridwiseGemm64 = GridwiseGemmBase<math::max(NXdlPerWave64, 1)>;
    using GridwiseGemm32 = GridwiseGemmBase<NXdlPerWave32>;
 
    static constexpr index_t APackedSize = []() {
        if constexpr(is_same_v<remove_cvref_t<ADataType>, pk_i4_t>)
            return 2;
        else
            return 1;
    }();
 
    static constexpr index_t BPackedSize = []() {
        if constexpr(is_same_v<remove_cvref_t<BDataType>, pk_i4_t>)
            return 2;
        else
            return 1;
    }();
 
    struct ComputePtrOffsetOfStridedBatch
    {
        ComputePtrOffsetOfStridedBatch(index_t BatchStrideA,
                                       index_t BatchStrideB,
                                       index_t BatchStrideC,
                                       index_t BatchStrideScaleB)
            : BatchStrideA_(BatchStrideA),
              BatchStrideB_(BatchStrideB),
              BatchStrideC_(BatchStrideC),
              BatchStrideScaleB_(BatchStrideScaleB)
        {
        }
 
        __host__ __device__ constexpr long_index_t GetAPtrOffset(index_t g_idx) const
        {
            return g_idx * static_cast<long_index_t>(BatchStrideA_);
        }
 
        __host__ __device__ constexpr long_index_t GetBPtrOffset(index_t g_idx) const
        {
            return g_idx * static_cast<long_index_t>(BatchStrideB_) / BPackedSize;
        }
 
        __host__ __device__ constexpr long_index_t GetCPtrOffset(index_t g_idx) const
        {
            return g_idx * static_cast<long_index_t>(BatchStrideC_);
        }
        __host__ __device__ constexpr long_index_t GetSacleBPtrOffset(index_t g_idx) const
        {
            return g_idx * static_cast<long_index_t>(BatchStrideScaleB_);
        }
 
        private:
        index_t BatchStrideA_;
        index_t BatchStrideB_;
        index_t BatchStrideC_;
        index_t BatchStrideScaleB_;
    };
 
    template <typename GridwiseGemm>
    struct ArgumentBase : public GridwiseGemm::Argument
    {
        index_t Batch;
        ComputePtrOffsetOfStridedBatch compute_ptr_offset_of_batch;
 
        ArgumentBase(const ADataType* p_a_grid_,
                     const BDataType* p_b_grid_,
                     CDataType* p_c_grid_,
                     index_t M_,
                     index_t N_,
                     index_t K_,
                     index_t StrideA_,
                     index_t StrideB_,
                     index_t StrideC_,
                     index_t StrideScaleB_,
                     index_t BatchStrideA_,
                     index_t BatchStrideB_,
                     index_t BatchStrideC_,
                     index_t BatchStrideScaleB_,
                     const BScaleDataType* p_b_scale_grid_,
                     index_t Batch_,
                     index_t KBatch_,
                     AElementwiseOperation a_element_op_,
                     BElementwiseOperation b_element_op_,
                     CElementwiseOperation c_element_op_)
            : GridwiseGemm::Argument(p_a_grid_,
                                     p_b_grid_,
                                     p_c_grid_,
                                     M_,
                                     N_,
                                     K_,
                                     StrideA_,
                                     StrideB_,
                                     StrideC_,
                                     StrideScaleB_,
                                     p_b_scale_grid_,
                                     KBatch_, // KBatch
                                     a_element_op_,
                                     b_element_op_,
                                     c_element_op_),
              Batch(Batch_),
              compute_ptr_offset_of_batch(
                  BatchStrideA_, BatchStrideB_, BatchStrideC_, BatchStrideScaleB_)
        {
        }
    };
    using Argument = ArgumentBase<GridwiseGemm64>;
 
    // Invoker
    struct Invoker : public BaseInvoker
    {
        template <typename GridwiseGemm>
        float RunImp(const ArgumentBase<GridwiseGemm>& arg,
                     const StreamConfig& stream_config = StreamConfig{})
        {
            using DeviceArgument = ArgumentBase<GridwiseGemm>;
            if(stream_config.log_level_ > 0)
            {
                arg.Print();
            }
 
            if(!GridwiseGemm::CheckValidity(arg))
            {
                throw std::runtime_error("wrong! GridwiseGemm has invalid setting");
            }
 
            index_t gdx, gdy, gdz;
            std::tie(gdx, gdy, gdz) =
                GridwiseGemm::CalculateGridSize(arg.M, arg.N, arg.Batch * arg.KBatch);
 
            float ave_time = 0;
 
            index_t k_grain = arg.KBatch * KPerBlock;
            index_t K_split = (arg.K + k_grain - 1) / k_grain * KPerBlock;
 
            const bool has_main_k_block_loop = GridwiseGemm::CalculateHasMainKBlockLoop(K_split);
 
            const auto Run = [&](const auto& kernel) {
                if(stream_config.flush_cache)
                {
                    DeviceArgument arg_ = arg;
 
                    const auto a_grid_desc_ak0_m_ak1 = GridwiseGemm::MakeAGridDescriptor_AK0_M_AK1(
                        arg_.M, arg_.MPadded, arg_.K, arg_.KPadded, arg_.StrideA, arg_.AK0);
                    const auto b_grid_desc_bk0_n_bk1 = GridwiseGemm::MakeBGridDescriptor_BK0_N_BK1(
                        arg_.K, arg_.KPadded, arg_.N, arg_.NPadded, arg_.StrideB, arg_.BK0);
 
                    auto size_a_buffer = a_grid_desc_ak0_m_ak1.GetElementSpaceSize() *
                                         sizeof(ADataType) / APackedSize;
                    auto size_b_buffer = b_grid_desc_bk0_n_bk1.GetElementSpaceSize() *
                                         sizeof(BDataType) / BPackedSize;
 
                    ck::utility::RotatingMemWrapper<DeviceArgument> rotating_mem(
                        arg_, stream_config.rotating_count, size_a_buffer, size_b_buffer);
                    rotating_mem.Print();
 
                    auto run_flush_cache = [&]() {
                        // flush icache
                        ck::utility::flush_icache();
                        // rotating mem
                        rotating_mem.Next();
                        // clear c mem
                        if(arg_.KBatch > 1)
                            hipGetErrorString(hipMemsetAsync(arg_.p_c_grid,
                                                             0,
                                                             arg_.M * arg_.N * sizeof(CDataType),
                                                             stream_config.stream_id_));
                    };
 
                    ave_time = ck::utility::launch_and_time_kernel_with_preprocess<false>(
                        stream_config,
                        run_flush_cache,
                        kernel,
                        dim3(gdx, gdy, gdz),
                        dim3(BlockSize),
                        0,
                        arg_);
                }
                else
                {
                    if(arg.KBatch > 1)
                        hipGetErrorString(hipMemsetAsync(arg.p_c_grid,
                                                         0,
                                                         arg.M * arg.N * sizeof(CDataType),
                                                         stream_config.stream_id_));
 
                    ave_time = launch_and_time_kernel(
                        stream_config, kernel, dim3(gdx, gdy, gdz), dim3(BlockSize), 0, arg);
                }
            };
 
            constexpr index_t minimum_occupancy =
                BlkGemmPipeSched == BlockGemmPipelineScheduler::Intrawave
                    ? (BlkGemmPipelineVer == BlockGemmPipelineVersion::v3 &&
                       MPerBlock * NPerBlock * KPerBlock * sizeof(ADataType) <= 128 * 128 * 64 * 2)
                          ? 2
                          : 1
                    : 2;
 
            if(has_main_k_block_loop)
            {
                // Tail number always full
                if constexpr(BlkGemmPipelineVer == BlockGemmPipelineVersion::v1 ||
                             BlkGemmPipelineVer == BlockGemmPipelineVersion::v3)
                {
                    if(arg.KBatch > 1)
                    {
                        const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                            GridwiseGemm,
                            DeviceArgument,
                            true,
                            InMemoryDataOperationEnum::AtomicAdd,
                            minimum_occupancy>;
                        Run(kernel);
                    }
                    else
                    {
                        const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                            GridwiseGemm,
                            DeviceArgument,
                            true,
                            InMemoryDataOperationEnum::Set,
                            minimum_occupancy>;
                        Run(kernel);
                    }
                }
                // Tail number could be One to Seven
                else if constexpr(BlkGemmPipelineVer == BlockGemmPipelineVersion::v2)
                {
                    if(arg.KBatch > 1)
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::One)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::One>;
                            Run(kernel);
                        }
                        else if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                                TailNumber::Full)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::Full>;
                            Run(kernel);
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 2)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Two)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Two>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 3)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Three)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Three>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 4)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Four)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Four>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 5)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Five)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Five>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 6)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Six)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Six>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 7)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Seven)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::AtomicAdd,
                                    minimum_occupancy,
                                    TailNumber::Seven>;
                                Run(kernel);
                            }
                        }
                    }
                    else
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::One)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::One>;
                            Run(kernel);
                        }
                        else if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                                TailNumber::Full)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::Full>;
                            Run(kernel);
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 2)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Two)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Two>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 3)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Three)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Three>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 4)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Four)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Four>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 5)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Five)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Five>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 6)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Six)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Six>;
                                Run(kernel);
                            }
                        }
 
                        if constexpr(GridwiseGemm::BlockwiseGemmPipe::PrefetchStages > 7)
                        {
                            if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) ==
                               TailNumber::Seven)
                            {
                                const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                    GridwiseGemm,
                                    DeviceArgument,
                                    true,
                                    InMemoryDataOperationEnum::Set,
                                    minimum_occupancy,
                                    TailNumber::Seven>;
                                Run(kernel);
                            }
                        }
                    }
                }
                // Tail number could be Odd or Even
                else if constexpr(BlkGemmPipelineVer == BlockGemmPipelineVersion::v4)
                {
                    if(arg.KBatch > 1)
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Odd)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3_2lds<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::Odd>;
                            Run(kernel);
                        }
                        else
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3_2lds<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::Even>;
                            Run(kernel);
                        }
                    }
                    else
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Odd)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3_2lds<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::Odd>;
                            Run(kernel);
                        }
                        else
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3_2lds<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::Even>;
                            Run(kernel);
                        }
                    }
                }
                else
                {
                    if(arg.KBatch > 1)
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Odd)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::Odd>;
                            Run(kernel);
                        }
                        else
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::AtomicAdd,
                                minimum_occupancy,
                                TailNumber::Even>;
                            Run(kernel);
                        }
                    }
                    else
                    {
                        if(GridwiseGemm::CalculateKBlockLoopTailNum(K_split) == TailNumber::Odd)
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::Odd>;
                            Run(kernel);
                        }
                        else
                        {
                            const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                                GridwiseGemm,
                                DeviceArgument,
                                true,
                                InMemoryDataOperationEnum::Set,
                                minimum_occupancy,
                                TailNumber::Even>;
                            Run(kernel);
                        }
                    }
                }
            }
            else
            {
                // Tail number always 1
                if constexpr(BlkGemmPipelineVer == BlockGemmPipelineVersion::v1)
                {
                    if(arg.KBatch > 1)
                    {
                        const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                            GridwiseGemm,
                            DeviceArgument,
                            false,
                            InMemoryDataOperationEnum::AtomicAdd,
                            minimum_occupancy>;
                        Run(kernel);
                    }
                    else
                    {
                        const auto kernel = kernel_batched_gemm_b_scale_xdl_cshuffle_v3<
                            GridwiseGemm,
                            DeviceArgument,
                            false,
                            InMemoryDataOperationEnum::Set,
                            minimum_occupancy>;
                        Run(kernel);
                    }
                }
            }
 
            return ave_time;
        }
 
        float Run(const Argument& arg, const StreamConfig& stream_config = StreamConfig{})
        {
            if(get_warp_size() == 64)
            {
                if constexpr(NXdlPerWave64 > 0)
                {
                    return RunImp<GridwiseGemm64>(arg, stream_config);
                }
            }
            else
            {
                if constexpr(NXdlPerWave32 > 0)
                {
                    using Argument32 = ArgumentBase<GridwiseGemm32>;
                    return RunImp<GridwiseGemm32>(reinterpret_cast<const Argument32&>(arg),
                                                  stream_config);
                }
            }
            return 0;
        }
 
        // polymorphic
        float Run(const BaseArgument* p_arg,
                  const StreamConfig& stream_config = StreamConfig{}) override
        {
            return Run(*dynamic_cast<const Argument*>(p_arg), stream_config);
        }
    };
 
    static constexpr bool IsValidCompilationParameter()
    {
        // TODO: properly implement this check
        return true;
    }
 
    static bool IsSupportedArgument(const Argument& arg)
    {
        if(!ck::is_xdl_wmma_supported<ComputeTypeA, ComputeTypeB, MPerXDL, NPerXDL>())
        {
            return false;
        }
        if(is_gfx11_supported() && arg.KBatch > 1)
        {
            return false;
        }
        if(!is_bf16_atomic_supported() && std::is_same_v<CDataType, ck::bhalf_t> && arg.KBatch > 1)
        {
            return false;
        }
 
        if((arg.K % AK1 != 0 || arg.K % BK1 != 0) && !(GemmSpec == GemmSpecialization::MKPadding ||
                                                       GemmSpec == GemmSpecialization::NKPadding ||
                                                       GemmSpec == GemmSpecialization::MNKPadding ||
                                                       GemmSpec == GemmSpecialization::KPadding))
        {
            return false;
        }
        if(get_warp_size() == 64)
        {
            if constexpr(NXdlPerWave64 > 0)
            {
                return GridwiseGemm64::CheckValidity(arg);
            }
        }
        else
        {
            if constexpr(NXdlPerWave32 > 0)
            {
                using Argument32 = ArgumentBase<GridwiseGemm32>;
                return GridwiseGemm32::CheckValidity(reinterpret_cast<const Argument32&>(arg));
            }
        }
        return false;
    }
 
    // polymorphic
    bool IsSupportedArgument(const BaseArgument* p_arg) override
    {
        return IsSupportedArgument(*dynamic_cast<const Argument*>(p_arg));
    }
 
    index_t GetKPerBlock() override { return KPerBlock; }
 
    bool GetPermuteB() override { return PermuteB; }
 
    static auto MakeArgument(const ADataType* p_a,
                             const BDataType* p_b,
                             CDataType* p_c,
                             index_t M,
                             index_t N,
                             index_t K,
                             index_t StrideA,
                             index_t StrideB,
                             index_t StrideC,
                             index_t StrideScaleB,
                             index_t BatchStrideA,
                             index_t BatchStrideB,
                             index_t BatchStrideC,
                             index_t BatchStrideScaleB,
                             const BScaleDataType* p_b_scale,
                             index_t Batch,
                             index_t KBatch,
                             AElementwiseOperation a_element_op,
                             BElementwiseOperation b_element_op,
                             CElementwiseOperation c_element_op)
    {
        return Argument{p_a,
                        p_b,
                        p_c,
                        M,
                        N,
                        K,
                        StrideA,
                        StrideB,
                        StrideC,
                        StrideScaleB,
                        BatchStrideA,
                        BatchStrideB,
                        BatchStrideC,
                        BatchStrideScaleB,
                        p_b_scale,
                        Batch,
                        KBatch,
                        a_element_op,
                        b_element_op,
                        c_element_op};
    }
 
    static auto MakeInvoker() { return Invoker{}; }
 
    // polymorphic
    std::unique_ptr<BaseArgument> MakeArgumentPointer(const void* p_a,
                                                      const void* p_b,
                                                      void* p_c,
                                                      index_t M,
                                                      index_t N,
                                                      index_t K,
                                                      index_t StrideA,
                                                      index_t StrideB,
                                                      index_t StrideC,
                                                      index_t StrideScaleB,
                                                      index_t BatchStrideA,
                                                      index_t BatchStrideB,
                                                      index_t BatchStrideC,
                                                      index_t BatchStrideScaleB,
                                                      const void* p_b_scale,
                                                      index_t Batch,
                                                      index_t KBatch,
                                                      AElementwiseOperation a_element_op,
                                                      BElementwiseOperation b_element_op,
                                                      CElementwiseOperation c_element_op) override
    {
        return std::make_unique<Argument>(static_cast<const ADataType*>(p_a),
                                          static_cast<const BDataType*>(p_b),
                                          static_cast<CDataType*>(p_c),
                                          M,
                                          N,
                                          K,
                                          StrideA,
                                          StrideB,
                                          StrideC,
                                          StrideScaleB,
                                          BatchStrideA,
                                          BatchStrideB,
                                          BatchStrideC,
                                          BatchStrideScaleB,
                                          static_cast<const BScaleDataType*>(p_b_scale),
                                          Batch,
                                          KBatch,
                                          a_element_op,
                                          b_element_op,
                                          c_element_op);
    }
 
    // polymorphic
    std::unique_ptr<BaseInvoker> MakeInvokerPointer() override
    {
        return std::make_unique<Invoker>(Invoker{});
    }
 
    // polymorphic
    std::string GetTypeString() const override
    {
        auto str = std::stringstream();
 
        std::map<BlockGemmPipelineScheduler, std::string> BlkGemmPipelineSchedulerToString{
            {BlockGemmPipelineScheduler::Intrawave, "Intrawave"},
            {BlockGemmPipelineScheduler::Interwave, "Interwave"}};
 
        std::map<BlockGemmPipelineVersion, std::string> BlkGemmPipelineVersionToString{
            {BlockGemmPipelineVersion::v1, "v1"},
            {BlockGemmPipelineVersion::v2, "v2"},
            {BlockGemmPipelineVersion::v3, "v3"},
            {BlockGemmPipelineVersion::v4, "v4"},
            {BlockGemmPipelineVersion::v5, "v5"}};
 
        // clang-format off
        str << "DeviceGemmXdlUniversal"
            << "<"
            << getGemmSpecializationString(GemmSpec) << ", "
            << std::string(ALayout::name)[0]
            << std::string(BLayout::name)[0]
            << std::string(CLayout::name)[0]
            << ">"
            << " BlkSize: "
            << BlockSize << ", "
            << "BlkTile: "
            << MPerBlock<<"x"<<NPerBlock<<"x"<<KPerBlock << ", "
            << "WaveTile: "
            << MPerXDL<<"x"<<NPerXDL << ", "
            << "WaveMap: "
            << MXdlPerWave<<"x" << NXdlPerWave<<", "
            << "VmemReadVec: "
            << ABlockTransferSrcScalarPerVector<<"x"<<BBlockTransferSrcScalarPerVector<<", "
            << "BlkGemmPipelineScheduler: "
            << BlkGemmPipelineSchedulerToString[BlkGemmPipeSched] << ", "
            << "BlkGemmPipelineVersion: "
            << BlkGemmPipelineVersionToString[BlkGemmPipelineVer] << ", "
            << "BlkGemmPipelinePrefetchStages: "
            << GridwiseGemm64::BlockwiseGemmPipe::PrefetchStages;
        // clang-format on
 
        return str.str();
    }
};
 
} // namespace device
} // namespace tensor_operation
} // namespace ck