include/ck_tile/ops/grouped_convolution/kernel/grouped_convolution_forward_kernel.hpp Source File

include/ck_tile/ops/grouped_convolution/kernel/grouped_convolution_forward_kernel.hpp Source File#

Composable Kernel: include/ck_tile/ops/grouped_convolution/kernel/grouped_convolution_forward_kernel.hpp Source File
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2025, Advanced Micro Devices, Inc. All rights reserved.
  
 #pragma once
  
 #include <iostream>
 #include <string>
  
 #include "ck_tile/core.hpp"
 #include "ck_tile/ops/common.hpp"
 #include "ck_tile/host/concat.hpp"
 #include "ck_tile/core/utility/env.hpp"
 #include "ck_tile/host/convolution_parameter.hpp"
 #include "ck_tile/ops/grouped_convolution/utils/transform_conv_fwd_to_gemm.hpp"
 #include "ck_tile/ops/grouped_convolution/utils/grouped_convolution_utils.hpp"
  
 namespace ck_tile {
  
 template <typename GroupedConvTraitsType>
 struct GroupedConvFwdKernelArgs
 {
  
     using ConvToGemmFwdTransformer =
         TransformConvFwdToGemm<GroupedConvTraitsType::NDimSpatial,
                                GroupedConvTraitsType::ConvSpecialization>;
     static constexpr index_t NumDTensor = GroupedConvTraitsType::NumDTensor;
  
     template <
         typename InLay                      = typename GroupedConvTraitsType::InLayout,
         typename WeiLay                     = typename GroupedConvTraitsType::WeiLayout,
         typename OutLay                     = typename GroupedConvTraitsType::OutLayout,
         typename std::enable_if<std::is_same_v<InLay, tensor_layout::convolution::NWGC> &&
                                     std::is_same_v<WeiLay, tensor_layout::convolution::GKXC> &&
                                     std::is_same_v<OutLay, tensor_layout::convolution::NWGK>,
                                 bool>::type = false>
     CK_TILE_HOST GroupedConvFwdKernelArgs(const GroupedConvFwdHostArgs& args)
     {
         in_g_n_c_wis_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.input_spatial_lengths_[0])};
         wei_g_k_c_xs_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.filter_spatial_lengths_[0])};
         out_g_n_k_wos_lengths = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.output_spatial_lengths_[0])};
  
         conv_filter_strides   = {static_cast<index_t>(args.conv_filter_strides_[0])};
         conv_filter_dilations = {static_cast<index_t>(args.conv_filter_dilations_[0])};
         input_left_pads       = {static_cast<index_t>(args.input_left_pads_[0])};
         input_right_pads      = {static_cast<index_t>(args.input_right_pads_[0])};
  
         k_batch = args.k_batch;
  
         GemmM     = args.N_ * args.output_spatial_lengths_[0];
         GemmN     = args.K_;
         GemmK     = args.C_ * args.filter_spatial_lengths_[0];
         GemmBatch = args.G_;
  
         in_ptr  = args.in_ptr;
         wei_ptr = args.wei_ptr;
         for(index_t d = 0; d < NumDTensor; d++)
         {
             ds_ptr[d] = args.ds_ptr[d];
         }
         out_ptr = args.out_ptr;
  
         ConvToGemmFwdTransformer conv_to_gemm_transformer{in_g_n_c_wis_lengths,
                                                           wei_g_k_c_xs_lengths,
                                                           out_g_n_k_wos_lengths,
                                                           conv_filter_strides,
                                                           conv_filter_dilations,
                                                           input_left_pads,
                                                           input_right_pads};
  
         a_grid_desc_m_k =
             conv_to_gemm_transformer
                 .template MakeADescriptor_M_K<typename GroupedConvTraitsType::InLayout>();
         b_grid_desc_n_k =
             conv_to_gemm_transformer
                 .template MakeBDescriptor_N_K<typename GroupedConvTraitsType::WeiLayout>();
         c_grid_desc_m_n =
             conv_to_gemm_transformer
                 .template MakeCDescriptor_M_N<typename GroupedConvTraitsType::OutLayout>();
  
         group_stride_a = args.C_;
         group_stride_b = args.K_ * args.C_ *
                          std::accumulate(args.filter_spatial_lengths_.begin(),
                                          args.filter_spatial_lengths_.end(),
                                          1,
                                          std::multiplies<index_t>());
         group_stride_c = args.K_;
     }
  
     template <
         typename InLay                      = typename GroupedConvTraitsType::InLayout,
         typename WeiLay                     = typename GroupedConvTraitsType::WeiLayout,
         typename OutLay                     = typename GroupedConvTraitsType::OutLayout,
         typename std::enable_if<std::is_same_v<InLay, tensor_layout::convolution::NHWGC> &&
                                     std::is_same_v<WeiLay, tensor_layout::convolution::GKYXC> &&
                                     std::is_same_v<OutLay, tensor_layout::convolution::NHWGK>,
                                 bool>::type = false>
     CK_TILE_HOST GroupedConvFwdKernelArgs(const GroupedConvFwdHostArgs& args)
     {
         in_g_n_c_wis_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.input_spatial_lengths_[0]),
                                  static_cast<index_t>(args.input_spatial_lengths_[1])};
         wei_g_k_c_xs_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.filter_spatial_lengths_[0]),
                                  static_cast<index_t>(args.filter_spatial_lengths_[1])};
         out_g_n_k_wos_lengths = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.output_spatial_lengths_[0]),
                                  static_cast<index_t>(args.output_spatial_lengths_[1])};
  
         conv_filter_strides   = {static_cast<index_t>(args.conv_filter_strides_[0]),
                                  static_cast<index_t>(args.conv_filter_strides_[1])};
         conv_filter_dilations = {static_cast<index_t>(args.conv_filter_dilations_[0]),
                                  static_cast<index_t>(args.conv_filter_dilations_[1])};
         input_left_pads       = {static_cast<index_t>(args.input_left_pads_[0]),
                                  static_cast<index_t>(args.input_left_pads_[1])};
         input_right_pads      = {static_cast<index_t>(args.input_right_pads_[0]),
                                  static_cast<index_t>(args.input_right_pads_[1])};
  
         k_batch = args.k_batch;
  
         GemmM     = args.N_ * args.output_spatial_lengths_[0] * args.output_spatial_lengths_[1];
         GemmN     = args.K_;
         GemmK     = args.C_ * args.filter_spatial_lengths_[0] * args.filter_spatial_lengths_[1];
         GemmBatch = args.G_;
  
         in_ptr  = args.in_ptr;
         wei_ptr = args.wei_ptr;
         for(index_t d = 0; d < NumDTensor; d++)
         {
             ds_ptr[d] = args.ds_ptr[d];
         }
         out_ptr = args.out_ptr;
  
         ConvToGemmFwdTransformer conv_to_gemm_transformer{in_g_n_c_wis_lengths,
                                                           wei_g_k_c_xs_lengths,
                                                           out_g_n_k_wos_lengths,
                                                           conv_filter_strides,
                                                           conv_filter_dilations,
                                                           input_left_pads,
                                                           input_right_pads};
  
         a_grid_desc_m_k =
             conv_to_gemm_transformer
                 .template MakeADescriptor_M_K<typename GroupedConvTraitsType::InLayout>();
         b_grid_desc_n_k =
             conv_to_gemm_transformer
                 .template MakeBDescriptor_N_K<typename GroupedConvTraitsType::WeiLayout>();
         c_grid_desc_m_n =
             conv_to_gemm_transformer
                 .template MakeCDescriptor_M_N<typename GroupedConvTraitsType::OutLayout>();
  
         group_stride_a = args.C_;
         group_stride_b = args.K_ * args.C_ *
                          std::accumulate(args.filter_spatial_lengths_.begin(),
                                          args.filter_spatial_lengths_.end(),
                                          1,
                                          std::multiplies<index_t>());
         group_stride_c = args.K_;
     }
  
     template <
         typename InLay                      = typename GroupedConvTraitsType::InLayout,
         typename WeiLay                     = typename GroupedConvTraitsType::WeiLayout,
         typename OutLay                     = typename GroupedConvTraitsType::OutLayout,
         typename std::enable_if<std::is_same_v<InLay, tensor_layout::convolution::NDHWGC> &&
                                     std::is_same_v<WeiLay, tensor_layout::convolution::GKZYXC> &&
                                     std::is_same_v<OutLay, tensor_layout::convolution::NDHWGK>,
                                 bool>::type = false>
     CK_TILE_HOST GroupedConvFwdKernelArgs(const GroupedConvFwdHostArgs& args)
     {
         in_g_n_c_wis_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.input_spatial_lengths_[0]),
                                  static_cast<index_t>(args.input_spatial_lengths_[1]),
                                  static_cast<index_t>(args.input_spatial_lengths_[2])};
         wei_g_k_c_xs_lengths  = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.C_),
                                  static_cast<index_t>(args.filter_spatial_lengths_[0]),
                                  static_cast<index_t>(args.filter_spatial_lengths_[1]),
                                  static_cast<index_t>(args.filter_spatial_lengths_[2])};
         out_g_n_k_wos_lengths = {static_cast<index_t>(args.G_),
                                  static_cast<index_t>(args.N_),
                                  static_cast<index_t>(args.K_),
                                  static_cast<index_t>(args.output_spatial_lengths_[0]),
                                  static_cast<index_t>(args.output_spatial_lengths_[1]),
                                  static_cast<index_t>(args.output_spatial_lengths_[2])};
  
         conv_filter_strides   = {static_cast<index_t>(args.conv_filter_strides_[0]),
                                  static_cast<index_t>(args.conv_filter_strides_[1]),
                                  static_cast<index_t>(args.conv_filter_strides_[2])};
         conv_filter_dilations = {static_cast<index_t>(args.conv_filter_dilations_[0]),
                                  static_cast<index_t>(args.conv_filter_dilations_[1]),
                                  static_cast<index_t>(args.conv_filter_dilations_[2])};
         input_left_pads       = {static_cast<index_t>(args.input_left_pads_[0]),
                                  static_cast<index_t>(args.input_left_pads_[1]),
                                  static_cast<index_t>(args.input_left_pads_[2])};
         input_right_pads      = {static_cast<index_t>(args.input_right_pads_[0]),
                                  static_cast<index_t>(args.input_right_pads_[1]),
                                  static_cast<index_t>(args.input_right_pads_[2])};
  
         k_batch = args.k_batch;
  
         GemmM = args.N_ * args.output_spatial_lengths_[0] * args.output_spatial_lengths_[1] *
                 args.output_spatial_lengths_[2];
         GemmN = args.K_;
         GemmK = args.C_ * args.filter_spatial_lengths_[0] * args.filter_spatial_lengths_[1] *
                 args.filter_spatial_lengths_[2];
         GemmBatch = args.G_;
  
         in_ptr  = args.in_ptr;
         wei_ptr = args.wei_ptr;
         for(index_t d = 0; d < NumDTensor; d++)
         {
             ds_ptr[d] = args.ds_ptr[d];
         }
         out_ptr = args.out_ptr;
  
         ConvToGemmFwdTransformer conv_to_gemm_transformer{in_g_n_c_wis_lengths,
                                                           wei_g_k_c_xs_lengths,
                                                           out_g_n_k_wos_lengths,
                                                           conv_filter_strides,
                                                           conv_filter_dilations,
                                                           input_left_pads,
                                                           input_right_pads};
  
         a_grid_desc_m_k =
             conv_to_gemm_transformer
                 .template MakeADescriptor_M_K<typename GroupedConvTraitsType::InLayout>();
         b_grid_desc_n_k =
             conv_to_gemm_transformer
                 .template MakeBDescriptor_N_K<typename GroupedConvTraitsType::WeiLayout>();
         c_grid_desc_m_n =
             conv_to_gemm_transformer
                 .template MakeCDescriptor_M_N<typename GroupedConvTraitsType::OutLayout>();
  
         group_stride_a = args.C_;
         group_stride_b = args.K_ * args.C_ *
                          std::accumulate(args.filter_spatial_lengths_.begin(),
                                          args.filter_spatial_lengths_.end(),
                                          1,
                                          std::multiplies<index_t>());
         group_stride_c = args.K_;
     }
  
     using AGridDescMK = remove_cvref_t<
         decltype(ConvToGemmFwdTransformer{}
                      .template MakeADescriptor_M_K<typename GroupedConvTraitsType::InLayout>())>;
     using BGridDescNK = remove_cvref_t<
         decltype(ConvToGemmFwdTransformer{}
                      .template MakeBDescriptor_N_K<typename GroupedConvTraitsType::WeiLayout>())>;
     using CGridDescMN = remove_cvref_t<
         decltype(ConvToGemmFwdTransformer{}
                      .template MakeCDescriptor_M_N<typename GroupedConvTraitsType::OutLayout>())>;
  
     static constexpr index_t NonSpatialDims = 3;
     array<index_t, NonSpatialDims + GroupedConvTraitsType::NDimSpatial> in_g_n_c_wis_lengths;
     array<index_t, NonSpatialDims + GroupedConvTraitsType::NDimSpatial> wei_g_k_c_xs_lengths;
     array<index_t, NonSpatialDims + GroupedConvTraitsType::NDimSpatial> out_g_n_k_wos_lengths;
  
     array<index_t, GroupedConvTraitsType::NDimSpatial> conv_filter_strides;
     array<index_t, GroupedConvTraitsType::NDimSpatial> conv_filter_dilations;
     array<index_t, GroupedConvTraitsType::NDimSpatial> input_left_pads;
     array<index_t, GroupedConvTraitsType::NDimSpatial> input_right_pads;
  
     index_t k_batch;
     index_t GemmM;
     index_t GemmN;
     index_t GemmK;
     index_t GemmBatch;
  
     const void* in_ptr;
     const void* wei_ptr;
     std::array<const void*, NumDTensor> ds_ptr;
     void* out_ptr;
  
     AGridDescMK a_grid_desc_m_k;
     BGridDescNK b_grid_desc_n_k;
     CGridDescMN c_grid_desc_m_n;
  
     long_index_t group_stride_a;
     long_index_t group_stride_b;
     long_index_t group_stride_c;
 };
  
 template <typename GroupedConvTraitsType,
           typename TilePartitioner_,
           typename GemmPipeline_,
           typename EpiloguePipeline_>
 struct GroupedConvolutionForwardKernel
 {
     static constexpr index_t NDimSpatial = GroupedConvTraitsType::NDimSpatial;
     static constexpr ConvolutionSpecialization ConvSpecialization =
         GroupedConvTraitsType::ConvSpecialization;
     using TilePartitioner  = remove_cvref_t<TilePartitioner_>;
     using GemmPipeline     = remove_cvref_t<GemmPipeline_>;
     using EpiloguePipeline = remove_cvref_t<EpiloguePipeline_>;
     using GemmALayout      = remove_cvref_t<typename GemmPipeline::ALayout>;
     using GemmBLayout      = remove_cvref_t<typename GemmPipeline::BLayout>;
     using GemmCLayout      = remove_cvref_t<typename GemmPipeline::CLayout>;
  
     using InLayout  = remove_cvref_t<typename GroupedConvTraitsType::InLayout>;
     using WeiLayout = remove_cvref_t<typename GroupedConvTraitsType::WeiLayout>;
     using OutLayout = remove_cvref_t<typename GroupedConvTraitsType::OutLayout>;
     using DsLayout  = remove_cvref_t<typename GroupedConvTraitsType::DsLayout>;
  
     using GemmDsLayout                  = remove_cvref_t<typename EpiloguePipeline::DsLayout>;
     static constexpr index_t NumDTensor = GroupedConvTraitsType::NumDTensor;
  
     static constexpr index_t KernelBlockSize = GemmPipeline::BlockSize;
  
     using InDataType  = remove_cvref_t<typename GemmPipeline::ADataType>;
     using WeiDataType = remove_cvref_t<typename GemmPipeline::BDataType>;
     using DsDataType  = remove_cvref_t<typename EpiloguePipeline::DsDataType>;
     // Below type is actually accumulation data type - the output of block GEMM.
     using OutDataType = remove_cvref_t<typename EpiloguePipeline::ODataType>;
  
     using GroupedConvFwdKernelArgsSpecialized = GroupedConvFwdKernelArgs<GroupedConvTraitsType>;
  
     // TODO: Enable this
     static constexpr bool IsSplitKSupported = false;
  
     static constexpr auto I0 = number<0>();
     static constexpr auto I1 = number<1>();
     static constexpr auto I2 = number<2>();
     static constexpr auto I3 = number<3>();
  
     static_assert(GemmPipeline::kPadM && GemmPipeline::kPadN && GemmPipeline::kPadK,
                   "Not supported!");
     static_assert(std::is_same_v<GemmALayout, tensor_layout::gemm::RowMajor>, "Not supported!");
     static_assert(std::is_same_v<GemmBLayout, tensor_layout::gemm::ColumnMajor>, "Not supported!");
     static_assert(std::is_same_v<GemmCLayout, tensor_layout::gemm::RowMajor>, "Not supported!");
  
     [[nodiscard]] CK_TILE_HOST static const std::string GetName()
     {
         // clang-format off
         return concat('_', "grouped_convolution_forward", gemm_prec_str<InDataType, WeiDataType>, GemmPipeline::GetName());
         // clang-format on
     }
  
     CK_TILE_HOST static constexpr auto GridSize(const GroupedConvFwdKernelArgsSpecialized& kargs)
     {
         return dim3(
             TilePartitioner::GridSize(kargs.GemmM, kargs.GemmN), kargs.GemmBatch, kargs.k_batch);
     }
  
     CK_TILE_HOST static constexpr auto BlockSize() { return dim3(KernelBlockSize); }
  
     CK_TILE_HOST static constexpr GroupedConvFwdKernelArgsSpecialized
     MakeKernelArgs(const GroupedConvFwdHostArgs& hostArgs)
     {
         return GroupedConvFwdKernelArgsSpecialized(hostArgs);
     }
  
     CK_TILE_HOST_DEVICE static constexpr index_t GetSmemSize()
     {
         return max(GemmPipeline::GetSmemSize(), EpiloguePipeline::GetSmemSize());
     }
  
     CK_TILE_HOST static bool IsSupportedArgument(const GroupedConvFwdKernelArgsSpecialized& kargs)
     {
         if constexpr((EpiloguePipeline::GetVectorSizeC() % 2 != 0 &&
                       is_any_of<OutDataType, fp16_t, bf16_t>::value) ||
                      !IsSplitKSupported)
         {
             if(kargs.k_batch != 1)
             {
                 if(ck_tile::EnvIsEnabled(CK_TILE_ENV(CK_TILE_LOGGING)))
                 {
                     CK_TILE_ERROR("Conditions not met for Kbatch >1 !");
                 }
                 return false;
             }
         }
  
         const index_t ConvK = kargs.wei_g_k_c_xs_lengths[number<1>{}];
         const index_t ConvC = kargs.wei_g_k_c_xs_lengths[number<2>{}];
  
         // check ConvolutionSpecialization
         if constexpr(ConvSpecialization == ConvolutionSpecialization::Filter1x1Stride1Pad0)
         {
             // check if it's 1x1, stride=1 conv
             for(index_t i = 0; i < NDimSpatial; ++i)
             {
                 const index_t SpatialDim = kargs.wei_g_k_c_xs_lengths[i + 3];
                 const index_t ConvStride = kargs.conv_filter_strides[i];
                 const index_t LeftPad    = kargs.input_left_pads[i];
                 const index_t RightPad   = kargs.input_right_pads[i];
  
                 if(!(SpatialDim == 1 && ConvStride == 1 && LeftPad == 0 && RightPad == 0))
                 {
                     return false;
                 }
             }
         }
         else if constexpr(ConvSpecialization == ConvolutionSpecialization::Filter1x1Pad0)
         {
             // check if it's 1x1 conv
             for(index_t i = 0; i < NDimSpatial; ++i)
             {
                 const index_t SpatialDim = kargs.wei_g_k_c_xs_lengths[i + 3];
                 const index_t LeftPad    = kargs.input_left_pads[i];
                 const index_t RightPad   = kargs.input_right_pads[i];
  
                 if(!(SpatialDim == 1 && LeftPad == 0 && RightPad == 0))
                 {
                     return false;
                 }
             }
         }
         else if constexpr(ConvSpecialization == ConvolutionSpecialization::Filter3x3)
         {
             if(ConvC != 1)
             {
                 return false;
             }
             for(index_t i = 0; i < NDimSpatial; ++i)
             {
                 const index_t filter_spatial_dim = kargs.wei_g_k_c_xs_lengths[i + I3];
  
                 if(filter_spatial_dim != I3)
                 {
                     return false;
                 }
             }
         }
  
         namespace ctc = tensor_layout::convolution;
  
         if constexpr(std::is_same_v<InLayout, ctc::NWGC> || std::is_same_v<InLayout, ctc::NHWGC> ||
                      std::is_same_v<InLayout, ctc::NDHWGC>)
         {
             // Check access per C
             if(ConvC % GemmPipeline::GetVectorSizeA() != 0)
             {
                 CK_TILE_ERROR("Conv C is not a multiple of vector load size for input image!");
                 return false;
             }
         }
         else
         {
             CK_TILE_ERROR("Not supported input layout!");
             return false;
         }
  
         // check vector access of B
         // FIXME: layout
         if constexpr(std::is_same_v<WeiLayout, ctc::GKXC> ||
                      std::is_same_v<WeiLayout, ctc::GKYXC> ||
                      std::is_same_v<WeiLayout, ctc::GKZYXC>)
         {
             if(ConvC % GemmPipeline::GetVectorSizeB() != 0)
             {
                 CK_TILE_ERROR("Conv C is not a multiple of vector load size for weight!");
                 return false;
             }
         }
         else
         {
             CK_TILE_ERROR("Not supported weight layout!");
             return false;
         }
  
         // check vector access of E
         if constexpr(std::is_same_v<OutLayout, ctc::NWGK> ||
                      std::is_same_v<OutLayout, ctc::NHWGK> ||
                      std::is_same_v<OutLayout, ctc::NDHWGK>)
         {
             if(ConvK % EpiloguePipeline::GetVectorSizeC() != 0)
             {
                 CK_TILE_ERROR("Conv K is not a multiple of vector store size for output image!");
                 return false;
             }
         }
         else
         {
             CK_TILE_ERROR("Not supported output layout!");
             return false;
         }
  
         return true;
     }
  
     template <memory_operation_enum DstInMemOp = memory_operation_enum::set>
     CK_TILE_DEVICE static auto
     MakeGemmTensorViews(const InDataType* a_ptr,
                         const WeiDataType* b_ptr,
                         const std::array<const void*, NumDTensor>& ds_ptr,
                         OutDataType* c_ptr,
                         const GroupedConvFwdKernelArgsSpecialized& kargs)
     {
         static_assert(!TilePartitioner::BlockGemmShape::PermuteA, "Not implemented!");
         static_assert(!TilePartitioner::BlockGemmShape::PermuteB, "Not implemented!");
         const auto& a_tensor_view = [&]() {
             return make_tensor_view<address_space_enum::global>(a_ptr, kargs.a_grid_desc_m_k);
         }();
  
         const auto& b_tensor_view = [&]() {
             return make_tensor_view<address_space_enum::global>(b_ptr, kargs.b_grid_desc_n_k);
         }();
  
         // TODO: enable vector write for C in ColMajor
         const auto& c_tensor_view = [&]() {
             return make_tensor_view<address_space_enum::global>(c_ptr, kargs.c_grid_desc_m_n);
         }();
  
         const auto& ds_tensor_view = generate_tuple(
             [&](auto i) {
                 static_assert(std::is_same_v<std::tuple_element_t<i, DsLayout>, OutLayout>,
                               "Not supported!");
                 static_assert(std::is_same_v<GemmCLayout, tensor_layout::gemm::RowMajor>,
                               "Not supported!");
                 static_assert(std::is_same_v<std::tuple_element_t<i, DsDataType>, OutDataType>,
                               "Not supported!");
  
                 return make_tensor_view<address_space_enum::global>(
                     static_cast<OutDataType*>(ds_ptr[i]), kargs.c_grid_desc_m_n);
             },
             number<NumDTensor>{});
  
         return make_tuple(a_tensor_view, b_tensor_view, ds_tensor_view, c_tensor_view);
     }
  
     template <typename TensorView>
     CK_TILE_DEVICE static auto MakeGemmPadViews(const TensorView& views)
     {
         const auto& a_pad_view = [&]() {
             const auto& a_tensor_view = views.at(I0);
             return pad_tensor_view(a_tensor_view,
                                    make_tuple(number<TilePartitioner::MPerBlock>{},
                                               number<TilePartitioner::KPerBlock>{}),
                                    sequence<true, true>{});
         }();
  
         const auto& b_pad_view = [&]() {
             const auto& b_tensor_view = views.at(I1);
             return pad_tensor_view(b_tensor_view,
                                    make_tuple(number<TilePartitioner::NPerBlock>{},
                                               number<TilePartitioner::KPerBlock>{}),
                                    sequence<true, true>{});
         }();
  
         const auto& ds_tensor_view = views.at(I2);
         const auto& ds_pad_view    = generate_tuple(
             [&](auto i) {
                 return pad_tensor_view(ds_tensor_view[i],
                                        make_tuple(number<TilePartitioner::MPerBlock>{},
                                                   number<TilePartitioner::NPerBlock>{}),
                                        sequence<true, true>{});
             },
             number<NumDTensor>{});
  
         const auto& c_pad_view = [&]() {
             const auto& c_tensor_view = views.at(I3);
             return pad_tensor_view(c_tensor_view,
                                    make_tuple(number<TilePartitioner::MPerBlock>{},
                                               number<TilePartitioner::NPerBlock>{}),
                                    sequence<true, true>{});
         }();
  
         return make_tuple(a_pad_view, b_pad_view, ds_pad_view, c_pad_view);
     }
  
     template <typename PadView>
     CK_TILE_DEVICE static auto
     MakeGemmTileWindows(const PadView& views, const index_t i_m, const index_t i_n)
     {
         const auto& a_pad_view  = views.at(I0);
         const auto& b_pad_view  = views.at(I1);
         const auto& ds_pad_view = views.at(I2);
         const auto& c_pad_view  = views.at(I3);
  
         const auto& a_block_window = [&]() {
             return make_tile_window(a_pad_view,
                                     make_tuple(number<TilePartitioner::MPerBlock>{},
                                                number<TilePartitioner::KPerBlock>{}),
                                     {i_m, 0});
         }();
  
         const auto& b_block_window = [&]() {
             return make_tile_window(b_pad_view,
                                     make_tuple(number<TilePartitioner::NPerBlock>{},
                                                number<TilePartitioner::KPerBlock>{}),
                                     {i_n, 0});
         }();
  
         const auto ds_block_window = generate_tuple(
             [&](auto i) {
                 return make_tile_window(ds_pad_view[i],
                                         make_tuple(number<TilePartitioner::MPerBlock>{},
                                                    number<TilePartitioner::NPerBlock>{}),
                                         {i_m, i_n});
             },
             number<NumDTensor>{});
  
         auto c_block_window = make_tile_window(
             c_pad_view,
             make_tuple(number<TilePartitioner::MPerBlock>{}, number<TilePartitioner::NPerBlock>{}),
             {i_m, i_n});
  
         return make_tuple(a_block_window, b_block_window, ds_block_window, c_block_window);
     }
  
     CK_TILE_DEVICE static void RunGemm(const InDataType* a_ptr,
                                        const WeiDataType* b_ptr,
                                        const std::array<const void*, NumDTensor>& ds_ptr,
                                        OutDataType* c_ptr,
                                        void* smem_ptr_0,
                                        const GroupedConvFwdKernelArgsSpecialized& kargs,
                                        const index_t block_idx_m,
                                        const index_t block_idx_n)
     {
         // Create Gemm tensor views, pad views and tile windows
         const auto& gemm_tensor_views_tuple =
             MakeGemmTensorViews<EpiloguePipeline::MemoryOperation>(
                 a_ptr, b_ptr, ds_ptr, c_ptr, kargs);
  
         const auto& gemm_pad_views = MakeGemmPadViews(gemm_tensor_views_tuple);
         auto gemm_tile_windows     = MakeGemmTileWindows(gemm_pad_views, block_idx_m, block_idx_n);
  
         const index_t num_loop =
             __builtin_amdgcn_readfirstlane(TilePartitioner::GetLoopNum(kargs.GemmK));
  
         // Run GEMM cooperatively by whole workgroup.
         const auto& a_block_window = gemm_tile_windows.at(I0);
         const auto& b_block_window = gemm_tile_windows.at(I1);
         const auto& d_block_window = gemm_tile_windows.at(I2);
  
         const auto& c_block_tile = GemmPipeline{}.template operator()(
             a_block_window, b_block_window, num_loop, smem_ptr_0);
  
         // Run Epilogue Pipeline
         auto& c_block_window = gemm_tile_windows.at(I3);
  
         EpiloguePipeline{}.template operator()<decltype(c_block_window), decltype(c_block_tile)>(
             c_block_window, c_block_tile, d_block_window, smem_ptr_0);
     }
  
     CK_TILE_DEVICE static void RunGemm2LDS(const InDataType* a_ptr,
                                            const WeiDataType* b_ptr,
                                            const std::array<const void*, NumDTensor>& ds_ptr,
                                            OutDataType* c_ptr,
                                            void* __restrict__ smem_ptr_0,
                                            void* __restrict__ smem_ptr_1,
                                            const GroupedConvFwdKernelArgsSpecialized& kargs,
                                            const index_t block_idx_m,
                                            const index_t block_idx_n)
     {
         // Create Gemm tensor views, pad views and tile windows
         const auto& gemm_tensor_views_tuple =
             MakeGemmTensorViews<EpiloguePipeline::MemoryOperation>(
                 a_ptr, b_ptr, ds_ptr, c_ptr, kargs);
         const auto& gemm_pad_views = MakeGemmPadViews(gemm_tensor_views_tuple);
         auto gemm_tile_windows     = MakeGemmTileWindows(gemm_pad_views, block_idx_m, block_idx_n);
  
         const index_t num_loop =
             __builtin_amdgcn_readfirstlane(TilePartitioner::GetLoopNum(kargs.GemmK));
  
         // Run GEMM cooperatively by whole workgroup.
         const auto& a_block_window = gemm_tile_windows.at(I0);
         const auto& b_block_window = gemm_tile_windows.at(I1);
         const auto& d_block_window = gemm_tile_windows.at(I2);
  
         const auto& c_block_tile = GemmPipeline{}.template operator()(
             a_block_window, b_block_window, num_loop, smem_ptr_0, smem_ptr_1);
  
         // Run Epilogue Pipeline
         auto& c_block_window = gemm_tile_windows.at(I3);
  
         EpiloguePipeline{}.template operator()<decltype(c_block_window), decltype(c_block_tile)>(
             c_block_window, c_block_tile, d_block_window, smem_ptr_0);
     }
  
     CK_TILE_DEVICE void operator()(GroupedConvFwdKernelArgsSpecialized kargs) const
     {
         const auto blockIdX = __builtin_amdgcn_readfirstlane(blockIdx.x);
         const auto [iM, iN] =
             TilePartitioner{kargs.GemmM, kargs.GemmN}.GetOutputTileIndex(blockIdX);
         const index_t i_m = __builtin_amdgcn_readfirstlane(iM * TilePartitioner::MPerBlock);
         const index_t i_n = __builtin_amdgcn_readfirstlane(iN * TilePartitioner::NPerBlock);
  
         const auto blockIdY       = __builtin_amdgcn_readfirstlane(blockIdx.y);
         const auto group_offset_a = __builtin_amdgcn_readfirstlane(kargs.group_stride_a * blockIdY);
         const auto group_offset_b = __builtin_amdgcn_readfirstlane(kargs.group_stride_b * blockIdY);
         const auto group_offset_c = __builtin_amdgcn_readfirstlane(kargs.group_stride_c * blockIdY);
  
         // options
         const InDataType* a_ptr  = static_cast<const InDataType*>(kargs.in_ptr) + group_offset_a;
         const WeiDataType* b_ptr = static_cast<const WeiDataType*>(kargs.wei_ptr) + group_offset_b;
         OutDataType* c_ptr       = static_cast<OutDataType*>(kargs.out_ptr) + group_offset_c;
  
         // allocate LDS
         __shared__ char smem_ptr_0[GetSmemSize()];
  
         if constexpr(GemmPipeline::DoubleSmemBuffer == true)
         {
             __shared__ char smem_ptr_1[GetSmemSize()];
             if constexpr(!(EpiloguePipeline::MemoryOperation == memory_operation_enum::atomic_add &&
                            EpiloguePipeline::GetVectorSizeC() % 2 != 0 &&
                            is_any_of<OutDataType, fp16_t, bf16_t>::value))
             {
                 RunGemm2LDS(
                     a_ptr, b_ptr, kargs.ds_ptr, c_ptr, smem_ptr_0, smem_ptr_1, kargs, i_m, i_n);
             }
         }
         else
         {
             if constexpr(!(EpiloguePipeline::MemoryOperation == memory_operation_enum::atomic_add &&
                            EpiloguePipeline::GetVectorSizeC() % 2 != 0 &&
                            is_any_of<OutDataType, fp16_t, bf16_t>::value))
             {
                 RunGemm(a_ptr, b_ptr, kargs.ds_ptr, c_ptr, smem_ptr_0, kargs, i_m, i_n);
             }
         }
     }
 };
  
 } // namespace ck_tile