diff --git a/include/ck/tensor_operation/gpu/device/device_grouped_gemm.hpp b/include/ck/tensor_operation/gpu/device/device_grouped_gemm.hpp
index 4b1106c122..1e03405536 100644
--- a/include/ck/tensor_operation/gpu/device/device_grouped_gemm.hpp
+++ b/include/ck/tensor_operation/gpu/device/device_grouped_gemm.hpp
@@ -1,4 +1,8 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
+
 #include <iostream>
 #include <vector>
 
diff --git a/include/ck/tensor_operation/gpu/device/impl/device_gemm_xdl_splitk_c_shuffle.hpp b/include/ck/tensor_operation/gpu/device/impl/device_gemm_xdl_splitk_c_shuffle.hpp
index 776f96e8e6..89bfc180a5 100644
--- a/include/ck/tensor_operation/gpu/device/impl/device_gemm_xdl_splitk_c_shuffle.hpp
+++ b/include/ck/tensor_operation/gpu/device/impl/device_gemm_xdl_splitk_c_shuffle.hpp
@@ -73,6 +73,11 @@ struct DeviceGemmXdlSplitKCShuffle : public DeviceGemmSplitK<ALayout,
     static constexpr auto I2 = Number<2>{};
     static constexpr auto I3 = Number<3>{};
 
+    // TODO: should be exposed as Tparams.
+    static constexpr index_t NumGemmKPrefetchStage = 1;
+    static constexpr LoopScheduler LoopSched       = make_default_loop_scheduler();
+    static constexpr PipelineVersion PipelineVer   = PipelineVersion::v2;
+
     using GridwiseGemm = GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2<
         BlockSize,
         ADataType, // TODO: distinguish A/B datatype
@@ -85,6 +90,7 @@ struct DeviceGemmXdlSplitKCShuffle : public DeviceGemmSplitK<ALayout,
         BElementwiseOperation,
         CElementwiseOperation,
         GemmSpec,
+        NumGemmKPrefetchStage,
         MPerBlock,
         NPerBlock,
         K0PerBlock,
@@ -112,7 +118,9 @@ struct DeviceGemmXdlSplitKCShuffle : public DeviceGemmSplitK<ALayout,
         CShuffleMRepeatPerShuffle,
         CShuffleNRepeatPerShuffle,
         CBlockTransferScalarPerVector_NWaveNPerXDL,
-        CBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock>;
+        CBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock,
+        LoopSched,
+        PipelineVer>;
 
     using Argument              = typename GridwiseGemm::Argument;
     using DefaultBlock2CTileMap = typename GridwiseGemm::DefaultBlock2CTileMap;
@@ -257,7 +265,7 @@ struct DeviceGemmXdlSplitKCShuffle : public DeviceGemmSplitK<ALayout,
                         StrideC,
                         GridwiseGemm::CalculateMPadded(M),
                         GridwiseGemm::CalculateNPadded(N),
-                        GridwiseGemm::CalculateKPadded(K),
+                        GridwiseGemm::CalculateKPadded(K, KBatch),
                         GridwiseGemm::CalculateK0(K, KBatch),
                         KBatch};
     }
@@ -290,7 +298,7 @@ struct DeviceGemmXdlSplitKCShuffle : public DeviceGemmSplitK<ALayout,
                                           StrideC,
                                           GridwiseGemm::CalculateMPadded(M),
                                           GridwiseGemm::CalculateNPadded(N),
-                                          GridwiseGemm::CalculateKPadded(K),
+                                          GridwiseGemm::CalculateKPadded(K, KBatch),
                                           GridwiseGemm::CalculateK0(K, KBatch),
                                           KBatch);
     }
diff --git a/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_xdl_splitk_cshuffle.hpp b/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_xdl_splitk_cshuffle.hpp
index 467a8429ab..54ad9eb065 100644
--- a/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_xdl_splitk_cshuffle.hpp
+++ b/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_xdl_splitk_cshuffle.hpp
@@ -85,7 +85,7 @@ template <typename ALayout,
           typename BElementwiseOperation,
           typename CDEElementwiseOperation,
           GemmSpecialization GemmSpec,
-          ck::index_t NumPrefetch,
+          ck::index_t NumGemmKPrefetchStage,
           ck::index_t BlockSize,
           ck::index_t MPerBlock,
           ck::index_t NPerBlock,
@@ -152,6 +152,7 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
         BElementwiseOperation,
         CDEElementwiseOperation,
         GemmSpec,
+        NumGemmKPrefetchStage,
         MPerBlock,
         NPerBlock,
         K0PerBlock,
@@ -179,7 +180,9 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
         CShuffleMXdlPerWavePerShuffle,
         CShuffleNXdlPerWavePerShuffle,
         CDEBlockTransferScalarPerVector_NPerBlock,
-        CDEBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock>;
+        CDEBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock,
+        LoopSched,
+        PipelineVersion::v2>;
 
     using CGridDesc_M_N = typename GridwiseGemm::CGridDesc_M_N;
     using Block2ETileMapKSplit =
@@ -265,8 +268,7 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
                 const index_t k_padded = GridwiseGemm::CalculateKPadded(K, K_BATCH);
                 const index_t k0       = GridwiseGemm::CalculateK0(K, K_BATCH);
 
-                const auto c_grid_desc_m_n =
-                    GridwiseGemm::MakeCGridDescriptor_M_N(M, N, m_padded, n_padded, stride_c);
+                const auto c_grid_desc_m_n = GridwiseGemm::MakeCGridDescriptor_M_N(M, N, stride_c);
 
                 const auto local_b2c_tile_map =
                     Block2ETileMapKSplit{c_grid_desc_m_n, B2E_M01, K_BATCH};
@@ -319,8 +321,8 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
                 const index_t k_padded = GridwiseGemm::CalculateKPadded(karg.K, K_BATCH);
                 const index_t k0       = GridwiseGemm::CalculateK0(karg.K, K_BATCH);
 
-                const auto c_grid_desc_m_n = GridwiseGemm::MakeCGridDescriptor_M_N(
-                    karg.M, karg.N, karg.MPadded, karg.NPadded, karg.StrideC);
+                const auto c_grid_desc_m_n =
+                    GridwiseGemm::MakeCGridDescriptor_M_N(karg.M, karg.N, karg.StrideC);
 
                 const auto local_b2c_tile_map =
                     Block2ETileMapKSplit{c_grid_desc_m_n, B2E_M01, K_BATCH};
@@ -501,6 +503,11 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
         if((ck::type_convert<ck::index_t>(arg.gemm_kernel_args_.size()) +
             arg.skipped_group_count_) != arg.group_count_)
         {
+#if DEBUG_LOG
+            std::cout << "The group count is not equal to sum of skipped groups "
+                         "and kernel args size!"
+                      << std::endl;
+#endif // DEBUG_LOG
             return false;
         }
 
@@ -509,14 +516,15 @@ struct DeviceGroupedGemmXdlSplitKCShuffle : public DeviceGroupedGemmSplitK<ALayo
         {
             const auto& a        = arg.gemm_kernel_args_[i].karg_;
             bool group_arg_valid = GridwiseGemm::CheckValidity(a);
-#if DEBUG_LOG
             if(not group_arg_valid)
             {
-                std::cout << "[" << __func__ << "] group id: " << i << " is not supported!\n";
+#if DEBUG_LOG
+                std::cout << "[" << __func__ << "] group id: " << i
+                          << " has invalid GridwiseGemm settings!" << std::endl;
                 a.Print();
-            }
 #endif // DEBUG_LOG
-            supported &= group_arg_valid;
+            }
+            supported = supported && group_arg_valid;
         }
         return supported;
     }
diff --git a/include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4r2.hpp b/include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4r2.hpp
index b393c4897e..d56d1986e2 100644
--- a/include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4r2.hpp
+++ b/include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4r2.hpp
@@ -8,14 +8,14 @@
 #include "ck/tensor_description/tensor_descriptor.hpp"
 #include "ck/tensor_description/tensor_descriptor_helper.hpp"
 #include "ck/tensor_operation/gpu/grid/block_to_ctile_map.hpp"
+#include "ck/tensor_operation/gpu/grid/gridwise_gemm_pipeline_selector.hpp"
 #include "ck/tensor_operation/gpu/grid/gridwise_gemm_pipeline_v1.hpp"
 #include "ck/tensor_operation/gpu/block/blockwise_gemm_xdlops.hpp"
 #include "ck/tensor_operation/gpu/block/thread_group_tensor_slice_transfer_v4r1.hpp"
 #include "ck/tensor_operation/gpu/block/thread_group_tensor_slice_transfer_v6r1.hpp"
 #include "ck/tensor_operation/gpu/thread/threadwise_tensor_slice_transfer.hpp"
 #include "ck/tensor_operation/gpu/element/element_wise_operation.hpp"
-
-#include "ck/tensor_operation/gpu/grid/gridwise_gemm_pipeline_selector.hpp"
+#include "ck/tensor_operation/gpu/device/matrix_padder.hpp"
 
 namespace ck {
 
@@ -55,6 +55,7 @@ template <index_t BlockSize,
           typename BElementwiseOperation,
           typename CElementwiseOperation,
           tensor_operation::device::GemmSpecialization GemmSpec,
+          index_t NumGemmKPrefetchStage,
           index_t MPerBlock,
           index_t NPerBlock,
           index_t K0PerBlock,
@@ -82,7 +83,9 @@ template <index_t BlockSize,
           index_t CShuffleMRepeatPerShuffle,
           index_t CShuffleNRepeatPerShuffle,
           index_t CBlockTransferScalarPerVector_NWaveNPerXDL,
-          typename CBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock>
+          typename CBlockTransferClusterLengths_MBlock_MPerBlock_NBlock_NPerBlock,
+          LoopScheduler LoopSched     = make_default_loop_scheduler(),
+          PipelineVersion PipelineVer = PipelineVersion::v1>
 struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
 {
     static constexpr auto I0 = Number<0>{};
@@ -99,8 +102,15 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
     static constexpr auto M01 = 1;
     static constexpr auto N01 = 1;
 
+    static constexpr auto gemm_padder =
+        tensor_operation::device::GemmPadder<GemmSpec, index_t, index_t, index_t>{
+            MPerBlock, NPerBlock, K1* K0PerBlock};
+
     using ThisThreadBlock = ThisThreadBlock<BlockSize>;
 
+    using GridwiseGemmPipe = remove_cvref_t<decltype(
+        GridwiseGemmPipeline_Selector<PipelineVer, NumGemmKPrefetchStage, LoopSched>())>;
+
     struct Argument : public ck::tensor_operation::device::BaseArgument
     {
         const FloatAB* p_a_grid;
@@ -176,12 +186,12 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
     // prefer this to be called on host
     __host__ __device__ static auto CalculateMPadded(index_t M)
     {
-        return (M + MPerBlock - 1) / MPerBlock * MPerBlock;
+        return math::integer_least_multiple(M, MPerBlock);
     }
 
     __host__ __device__ static auto CalculateNPadded(index_t N)
     {
-        return (N + NPerBlock - 1) / NPerBlock * NPerBlock;
+        return math::integer_least_multiple(N, NPerBlock);
     }
 
     __host__ __device__ static auto CalculateK0(index_t K, index_t K_Batch = 1)
@@ -295,8 +305,7 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
         }
     }
 
-    __host__ __device__ static auto
-    MakeCGridDescriptor_M_N(index_t M, index_t N, index_t MPad, index_t NPad, index_t StrideC)
+    __host__ __device__ static auto MakeCGridDescriptor_M_N(index_t M, index_t N, index_t StrideC)
     {
         const auto c_grid_desc_m_n = [&]() {
             if constexpr(is_same<tensor_layout::gemm::RowMajor, CLayout>::value)
@@ -309,22 +318,7 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
             }
         }();
 
-        if constexpr(GemmSpec == tensor_operation::device::GemmSpecialization::MNPadding)
-        {
-            return transform_tensor_descriptor(c_grid_desc_m_n,
-                                               make_tuple(make_right_pad_transform(M, MPad - M),
-                                                          make_right_pad_transform(N, NPad - N)),
-                                               make_tuple(Sequence<0>{}, Sequence<1>{}),
-                                               make_tuple(Sequence<0>{}, Sequence<1>{}));
-        }
-        else
-        {
-            return transform_tensor_descriptor(
-                c_grid_desc_m_n,
-                make_tuple(make_pass_through_transform(M), make_pass_through_transform(N)),
-                make_tuple(Sequence<0>{}, Sequence<1>{}),
-                make_tuple(Sequence<0>{}, Sequence<1>{}));
-        }
+        return gemm_padder.PadCDescriptor_M_N(c_grid_desc_m_n);
     }
 
     __host__ __device__ static constexpr index_t GetSharedMemoryNumberOfByte()
@@ -383,7 +377,15 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
                        GemmSpec == tensor_operation::device::GemmSpecialization::MNKPadding))
         {
             if(!(karg.M % MPerBlock == 0))
+            {
+#if DEBUG_LOG
+                std::cout << "Arg M value is not a multiple of MPerBlock! M: " << karg.M << " "
+                          << __FILE__ << ":" << __LINE__ << ", in function: " << __func__
+                          << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
         if constexpr(!(GemmSpec == tensor_operation::device::GemmSpecialization::NPadding ||
                        GemmSpec == tensor_operation::device::GemmSpecialization::MNPadding ||
@@ -391,40 +393,116 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
                        GemmSpec == tensor_operation::device::GemmSpecialization::MNKPadding))
         {
             if(!(karg.N % NPerBlock == 0))
+            {
+#if DEBUG_LOG
+                std::cout << "Arg N value is not a multiple of NPerBlock! N: " << karg.N << " "
+                          << __FILE__ << ":" << __LINE__ << ", in function: " << __func__
+                          << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
 
         if constexpr(is_same<tensor_layout::gemm::RowMajor, ALayout>::value)
         {
             if(karg.K % ABlockTransferSrcScalarPerVector != 0)
+            {
+#if DEBUG_LOG
+                std::cout << "Arg K (" << karg.K
+                          << ") value is not a multiple of ABlockTransferSrcScalarPerVector ("
+                          << ABlockTransferSrcScalarPerVector << " )! " << __FILE__ << ":"
+                          << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
         else
         {
             if(karg.M % ABlockTransferSrcScalarPerVector != 0)
+            {
+#if DEBUG_LOG
+                std::cout << "Arg M (" << karg.M
+                          << ") value is not a multiple of ABlockTransferSrcScalarPerVector ("
+                          << ABlockTransferSrcScalarPerVector << " )! " << __FILE__ << ":"
+                          << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
 
         if constexpr(is_same<tensor_layout::gemm::RowMajor, BLayout>::value)
         {
             if(karg.N % BBlockTransferSrcScalarPerVector != 0)
+            {
+#if DEBUG_LOG
+                std::cout << "Arg N (" << karg.N
+                          << ") value is not a multiple of BBlockTransferSrcScalarPerVector ("
+                          << BBlockTransferSrcScalarPerVector << " )! " << __FILE__ << ":"
+                          << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
         else
         {
             if(karg.K % BBlockTransferSrcScalarPerVector != 0)
+            {
+#if DEBUG_LOG
+                std::cout << "Arg K (" << karg.K
+                          << ") value is not a multiple of BBlockTransferSrcScalarPerVector ("
+                          << BBlockTransferSrcScalarPerVector << " )! " << __FILE__ << ":"
+                          << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
 
         if constexpr(is_same<tensor_layout::gemm::RowMajor, CLayout>::value)
         {
             if(karg.N % CBlockTransferScalarPerVector_NWaveNPerXDL != 0)
+            {
+#if DEBUG_LOG
+                std::cout
+                    << "Arg N (" << karg.N
+                    << ") value is not a multiple of CBlockTransferScalarPerVector_NWaveNPerXDL ("
+                    << CBlockTransferScalarPerVector_NWaveNPerXDL << " )! " << __FILE__ << ":"
+                    << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
         }
         else
         {
             if(karg.M % CBlockTransferScalarPerVector_NWaveNPerXDL != 0)
+            {
+#if DEBUG_LOG
+                std::cout
+                    << "Arg M (" << karg.M
+                    << ") value is not a multiple of CBlockTransferScalarPerVector_NWaveNPerXDL ("
+                    << CBlockTransferScalarPerVector_NWaveNPerXDL << " )! " << __FILE__ << ":"
+                    << __LINE__ << ", in function: " << __func__ << std::endl;
+
+#endif // DEBUG_LOG
                 return false;
+            }
+        }
+
+        const auto num_k_loop = karg.K0 / K0PerBlock;
+        if(!GridwiseGemmPipe::IsSupported(num_k_loop))
+        {
+#if DEBUG_LOG
+            std::cout << "The number of k loops (" << num_k_loop
+                      << ") value is not supported by GridwiseGemm Pipeline."
+                      << " K0: " << karg.K0 << ", K0PerBlock: " << K0PerBlock << " " << __FILE__
+                      << ":" << __LINE__ << ", in function: " << __func__ << std::endl;
+#endif // DEBUG_LOG
+            return false;
         }
 
         return true;
@@ -439,9 +517,8 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
 
     __host__ __device__ static constexpr bool CalculateHasMainK0BlockLoop(index_t K0)
     {
-        const bool has_main_k0_block_loop = K0 > K0PerBlock;
-
-        return has_main_k0_block_loop;
+        const index_t num_loop = K0 / K0PerBlock;
+        return GridwiseGemmPipe::CalculateHasMainLoop(num_loop);
     }
 
     template <typename CGridDesc>
@@ -490,7 +567,7 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
         return BlockToCTileMap_3DGrid_KSplit<MPerBlock, NPerBlock>();
     }
 
-    using CGridDesc_M_N         = remove_cvref_t<decltype(MakeCGridDescriptor_M_N(1, 1, 1, 1, 1))>;
+    using CGridDesc_M_N         = remove_cvref_t<decltype(MakeCGridDescriptor_M_N(1, 1, 1))>;
     using DefaultBlock2CTileMap = remove_cvref_t<decltype(MakeDefaultBlock2CTileMap())>;
 
     template <bool HasMainKBlockLoop,
@@ -507,8 +584,7 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
             karg.M, karg.MPadded, karg.K, karg.StrideA, karg.k_batch, karg.K0, karg.KPadded);
         const auto b_b_k0_n_k1_grid_desc = MakeBGridDescriptor_KBatch_K0_N_K1(
             karg.K, karg.NPadded, karg.N, karg.StrideB, karg.k_batch, karg.K0, karg.KPadded);
-        const auto c_grid_desc_m_n =
-            MakeCGridDescriptor_M_N(karg.M, karg.N, karg.MPadded, karg.NPadded, karg.StrideC);
+        const auto c_grid_desc_m_n = MakeCGridDescriptor_M_N(karg.M, karg.N, karg.StrideC);
 
         const auto c_grid_desc_mblock_mperblock_nblock_nperblock =
             MakeCGridDesc_MBlock_MPerBlock_NBlock_NPerBlock(c_grid_desc_m_n);
@@ -680,20 +756,8 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
         //     c_mtx[MPerBlock, NPerBlock] is distributed among threads, and saved in
         //       register
         // sanity check
-#if 1
-        auto blockwise_gemm =
-            BlockwiseGemmXdlops_k0mk1_k0nk1_m0n0m1n1m2m3m4n2_v1<BlockSize,
-                                                                FloatAB,
-                                                                FloatAcc,
-                                                                decltype(a_k0_m_k1_block_desc),
-                                                                decltype(b_k0_n_k1_block_desc),
-                                                                MPerXDL,
-                                                                NPerXDL,
-                                                                MRepeat,
-                                                                NRepeat,
-                                                                K1>{};
-#else
-        auto blockwise_gemm = BlockwiseGemmXdlopsInterwave_k0mk1_k0nk1_m0n0m1n1m2m3m4n2_v1<
+
+        auto blockwise_gemm = BlockwiseGemmXdlops_k0mk1_k0nk1_m0n0m1n1m2m3m4n2_Selector<
             BlockSize,
             FloatAB,
             FloatAcc,
@@ -703,9 +767,8 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
             NPerXDL,
             MRepeat,
             NRepeat,
-            K1>{};
-
-#endif
+            K1,
+            LoopSched>();
 
         auto c_thread_buf = blockwise_gemm.GetCThreadBuffer();
 
@@ -761,7 +824,7 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
                 b_blockwise_copy.RunWrite(b_b_k0_n_k1_block_desc, b_block_buf);
 
                 k0_block_data_begin += K0PerBlock;
-            } while(k0_block_data_begin < (K0 - K0PerBlock));
+            } while(k0_block_data_begin < (karg.K0 - K0PerBlock));
         }
 
         // tail
@@ -772,13 +835,12 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
         }
 #else
         // gridwise GEMM pipeline
-        const auto gridwise_gemm_pipeline =
-            GridwiseGemmPipeline_Selector<PipelineVersion::v2, 1, LoopScheduler::Default>();
-
         const index_t num_k_block_main_loop = __builtin_amdgcn_readfirstlane(
             (a_b_k0_m_k1_grid_desc.GetLength(I1) * a_b_k0_m_k1_grid_desc.GetLength(I3)) /
             (K0PerBlock * K1));
 
+        const auto gridwise_gemm_pipeline = GridwiseGemmPipe{};
+
         gridwise_gemm_pipeline.template Run<HasMainKBlockLoop>(a_b_k0_m_k1_grid_desc,
                                                                a_b_k0_m_k1_block_desc,
                                                                a_blockwise_copy,
@@ -993,24 +1055,6 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
         }
     }
 
-    template <typename Layout>
-    struct LStr
-    {
-        static std::string Get() { return ""; }
-    };
-
-    template <>
-    struct LStr<ck::tensor_layout::gemm::RowMajor>
-    {
-        static std::string Get() { return "R"; }
-    };
-
-    template <>
-    struct LStr<ck::tensor_layout::gemm::ColumnMajor>
-    {
-        static std::string Get() { return "C"; }
-    };
-
     static std::string GetTypeString()
     {
         auto str = std::stringstream();
diff --git a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_f16_f16_f16_mk_kn_mn_instance.cpp b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_f16_f16_f16_mk_kn_mn_instance.cpp
index a93cb7fc84..5f5d6c9b5a 100644
--- a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_f16_f16_f16_mk_kn_mn_instance.cpp
+++ b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_f16_f16_f16_mk_kn_mn_instance.cpp
@@ -64,6 +64,7 @@ using device_grouped_gemm_xdl_f16_f16_f16_mk_kn_mn_irregular_tile_instances = st
         //###################| Layout| Layout|      Layout| Layout|  Type|  Type|    Type| DataType|        Type|  Type| Elementwise| Elementwise| Elementwise| Spacialization| Prefetch|  Size| Block| Block| Block|    |    |  XDL|  XDL|  Per|  Per|   ThreadCluster|  ThreadCluster| SrcAccessOrder|   SrcVectorDim|      SrcScalar|      DstScalar| AddExtraM|   ThreadCluster|  ThreadCluster| SrcAccessOrder|  SrcVectorDim|      SrcScalar|      DstScalar| AddExtraN| MXdlPerWave| NXdlPerWave|         _MBlock_MWaveMPerXdl| ScalarPerVector|
         //###################|       |       |            |       |      |      |        |         |            |      |   Operation|   Operation|   Operation|               |    Stage|      |      |      |      |    |    |     |     | Wave| Wave| Lengths_K0_M_K1|   ArrangeOrder|               |               |      PerVector|   PerVector_K1|          | Lengths_K0_N_K1|   ArrangeOrder|               |              |      PerVector|   PerVector_K1|          |  PerShuffle|  PerShuffle|         _NBlock_NWaveNPerXdl|   _NWaveNPerXdl|
         //###################|       |       |            |       |      |      |        |         |            |      |            |            |            |               |         |      |      |      |      |    |    |     |     |     |     |                |               |               |               |               |               |          |                |               |               |              |               |               |          |            |            |                             |                |
+        DeviceGroupedGemm_Xdl<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   256,   128,    32,   8,   8,   32,   32,    4,    2,     S<4, 64, 1>,     S<1, 0, 2>,     S<1, 0, 2>,              2,              8,              8,         1,     S<4, 64, 1>,     S<0, 2, 1>,     S<0, 2, 1>,             1,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemm_Xdl<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,   128,    32,   8,   8,   32,   32,    2,    2,     S<4, 64, 1>,     S<1, 0, 2>,     S<1, 0, 2>,              2,              8,              8,         1,     S<4, 64, 1>,     S<0, 2, 1>,     S<0, 2, 1>,             1,              1,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemm_Xdl<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,    64,    32,   8,   2,   32,   32,    2,    1,     S<4, 64, 1>,     S<1, 0, 2>,     S<1, 0, 2>,              2,              8,              8,         1,     S<16,16, 1>,     S<0, 2, 1>,     S<0, 2, 1>,             1,              4,              2,         0,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemm_Xdl<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,    64,    32,   8,   8,   32,   32,    2,    1,     S<4, 64, 1>,     S<1, 0, 2>,     S<1, 0, 2>,              2,              8,              8,         1,     S<4, 64, 1>,     S<0, 2, 1>,     S<0, 2, 1>,             1,              1,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
diff --git a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_kn_mn_irregular_instance.cpp b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_kn_mn_irregular_instance.cpp
index 0385b0fc0c..a3d73440eb 100644
--- a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_kn_mn_irregular_instance.cpp
+++ b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_kn_mn_irregular_instance.cpp
@@ -44,14 +44,14 @@ using device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_kn_mn_irregular_tile_instanc
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   256,   128,    32,   8,   8,   32,   32,    4,    2,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,   256,    32,   8,   8,   32,   32,    2,    4,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              4,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   192,    64,    32,   8,   8,   32,   32,    3,    1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
-//      DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 48, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
+        DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 48, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,   128,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
-//      DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,    64,    32,   8,   8,   32,   32,    2,    1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 16, 1, 4>,              8>,
+        DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,    64,    32,   8,   8,   32,   32,    2,    1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              1,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   128,    32,   8,   8,   32,   32,    1,    2,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   128,   128,    32,   8,   8,   32,   32,    4,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              4,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   128,    64,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    64,   128,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              4,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
-//      DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 24, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              8,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
+        DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 24, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              8,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   192,    32,    32,   8,   8,   32,   32,    3,    1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              1,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,    64,    32,   8,   8,   32,   32,    1,    1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              2,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Row, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    64,    32,    32,   8,   8,   32,   32,    1,    1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 1, 3, 2>,  S<0, 1, 3, 2>,             2,              1,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
diff --git a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_instance.cpp b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_instance.cpp
index 5933ff61ec..dddfa2aa44 100644
--- a/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_instance.cpp
+++ b/library/src/tensor_operation_instance/gpu/grouped_gemm/device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_instance.cpp
@@ -37,7 +37,7 @@ using device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_tile_instanc
         //################################|       |       |            |       |      |      |        |         |            |      |            |            |            |               |         |      |      |      |      |    |    |     |     |     |     |                |               |               |               |               |               |          |                |               |               |              |               |               |          |            |            |                             |                |
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,   256,    32,   8,   8,   32,   32,    2,    4,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   192,    64,    32,   8,   8,   32,   32,    3,    1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
-//      DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 48, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              4>,
+        DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 48, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              4>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,   128,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,   128,    64,    32,   8,   8,   32,   32,    2,    1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   256,    64,   128,    32,   8,   8,   32,   32,    1,    2,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 64, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 8>,              8>,
@@ -45,7 +45,7 @@ using device_grouped_gemm_xdl_splitk_f16_f16_f16_mk_nk_mn_irregular_tile_instanc
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   128,    64,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,    
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    64,   128,    32,   8,   8,   32,   32,    2,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   192,    32,    32,   8,   8,   32,   32,    3,    1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
-//      DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
+        DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   192,    32,   8,   8,   32,   32,    1,    3,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,   128,    32,    32,   8,   8,   32,   32,    2,    1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 32, 1, 4>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   128,    32,   8,   8,   32,   32,    1,    2,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
         DeviceGroupedGemmXdlSplitKCShuffle<    Row,    Col, Empty_Tuple,    Row,   F16,   F16,     F32,      F16, Empty_Tuple,   F16, PassThrough, PassThrough, PassThrough, GemmMNKPadding,        1,   128,    32,   256,    32,   8,   8,   32,   32,    1,    4,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,              3,              8,              8,         1,  S<1, 4, 32, 1>,  S<0, 2, 1, 3>,  S<0, 2, 1, 3>,             3,              8,              8,         1,           1,           1,               S<1, 16, 1, 8>,              8>,
diff --git a/profiler/include/profiler/profile_gemm_splitk_impl.hpp b/profiler/include/profiler/profile_gemm_splitk_impl.hpp
index 4cc62509d7..ab1bce258a 100644
--- a/profiler/include/profiler/profile_gemm_splitk_impl.hpp
+++ b/profiler/include/profiler/profile_gemm_splitk_impl.hpp
@@ -246,9 +246,9 @@ bool profile_gemm_splitk_impl(int do_verification,
     }
 
     std::cout << " M = " << M << " N = " << N << " K = " << K << " StrideA = " << StrideA
-              << " StrideB = " << StrideB << " StrideC = " << StrideC << " : " << best_ave_time
-              << " ms, " << best_tflops << " TFlops, " << best_gb_per_sec << " GB/s, "
-              << best_op_name << std::endl;
+              << " StrideB = " << StrideB << " StrideC = " << StrideC << " KBatch = " << KBatch
+              << " : " << best_ave_time << " ms, " << best_tflops << " TFlops, " << best_gb_per_sec
+              << " GB/s, " << best_op_name << std::endl;
 
     return pass;
 }
diff --git a/profiler/include/profiler/profile_grouped_gemm_impl.hpp b/profiler/include/profiler/profile_grouped_gemm_impl.hpp
index 23dca244dc..9abb5e7a53 100644
--- a/profiler/include/profiler/profile_grouped_gemm_impl.hpp
+++ b/profiler/include/profiler/profile_grouped_gemm_impl.hpp
@@ -19,6 +19,7 @@
 #include "ck/library/utility/host_tensor.hpp"
 #include "ck/library/utility/host_tensor_generator.hpp"
 #include "ck/library/utility/literals.hpp"
+#include "ck/library/utility/fill.hpp"
 #include "ck/library/reference_tensor_operation/cpu/reference_gemm.hpp"
 
 namespace ck {
@@ -43,7 +44,6 @@ bool profile_grouped_gemm_impl(int do_verification,
                                const std::vector<int>& StrideCs,
                                int kbatch = 1)
 {
-
     bool pass = true;
 
     auto f_host_tensor_descriptor =
@@ -81,11 +81,11 @@ bool profile_grouped_gemm_impl(int do_verification,
 
         c_m_n_device_results.push_back(
             Tensor<CDataType>(f_host_tensor_descriptor(Ms[i], Ns[i], StrideCs[i], CLayout{})));
-
+#if DEBUG_LOG
         std::cout << "group: " << i << " a_m_k[" << i << "]:" << a_m_k[i].mDesc << ", b_k_n[" << i
                   << "]:" << b_k_n[i].mDesc << ", c_m_n_device_results[" << i
                   << "]:" << c_m_n_device_results[i].mDesc << std::endl;
-
+#endif // DEBUG_LOG
         std::size_t num_thread = 1;
         switch(init_method)
         {
@@ -191,65 +191,71 @@ bool profile_grouped_gemm_impl(int do_verification,
         DeviceMem gemm_desc_workspace(gemm_ptr->GetWorkSpaceSize(argument_ptr.get()));
 
         gemm_ptr->SetWorkSpacePointer(argument_ptr.get(), gemm_desc_workspace.GetDeviceBuffer());
+        std::string gemm_name = gemm_ptr->GetTypeString();
+
+        if(kbatch > 1)
+        {
+            using DeviceOpSplitK =
+                ck::tensor_operation::device::DeviceGroupedGemmSplitK<ALayout,
+                                                                      BLayout,
+                                                                      ck::Tuple<>,
+                                                                      CLayout,
+                                                                      ADataType,
+                                                                      BDataType,
+                                                                      ck::Tuple<>,
+                                                                      CDataType,
+                                                                      AElementOp,
+                                                                      BElementOp,
+                                                                      CElementOp>;
+
+            if(dynamic_cast<DeviceOpSplitK*>(gemm_ptr.get()) != nullptr)
+            {
+                dynamic_cast<DeviceOpSplitK*>(gemm_ptr.get())
+                    ->SetKBatchSize(argument_ptr.get(), kbatch);
+            }
+        }
 
         if(gemm_ptr->IsSupportedArgument(argument_ptr.get()))
         {
-            std::string gemm_name = gemm_ptr->GetTypeString();
-
-            if(kbatch > 1)
-            {
-                using DeviceOpSplitK =
-                    ck::tensor_operation::device::DeviceGroupedGemmSplitK<ALayout,
-                                                                          BLayout,
-                                                                          ck::Tuple<>,
-                                                                          CLayout,
-                                                                          ADataType,
-                                                                          BDataType,
-                                                                          ck::Tuple<>,
-                                                                          CDataType,
-                                                                          AElementOp,
-                                                                          BElementOp,
-                                                                          CElementOp>;
-
-                if(dynamic_cast<DeviceOpSplitK*>(gemm_ptr.get()) != nullptr)
-                {
-                    dynamic_cast<DeviceOpSplitK*>(gemm_ptr.get())
-                        ->SetKBatchSize(argument_ptr.get(), kbatch);
-                }
-            }
 
             float ave_time =
                 invoker_ptr->Run(argument_ptr.get(), StreamConfig{nullptr, time_kernel});
 
-            std::size_t flop = 0, num_btype = 0;
-            for(std::size_t i = 0; i < gemm_descs.size(); i++)
+            if(time_kernel)
             {
-                flop += std::size_t(2) * Ms[i] * Ns[i] * Ks[i];
+                std::size_t flop = 0, num_btype = 0;
+                for(std::size_t i = 0; i < gemm_descs.size(); i++)
+                {
+                    flop += std::size_t(2) * Ms[i] * Ns[i] * Ks[i];
 
-                num_btype += sizeof(ADataType) * Ms[i] * Ks[i] + sizeof(BDataType) * Ks[i] * Ns[i] +
-                             sizeof(CDataType) * Ms[i] * Ns[i];
-            }
+                    num_btype += sizeof(ADataType) * Ms[i] * Ks[i] +
+                                 sizeof(BDataType) * Ks[i] * Ns[i] +
+                                 sizeof(CDataType) * Ms[i] * Ns[i];
+                }
 
-            float tflops = static_cast<float>(flop) / 1.E9 / ave_time;
+                float tflops = static_cast<float>(flop) / 1.E9 / ave_time;
 
-            float gb_per_sec = num_btype / 1.E6 / ave_time;
-            std::cout << "Perf: " << std::setw(10) << ave_time << " ms, " << tflops << " TFlops, "
-                      << gb_per_sec << " GB/s, " << gemm_name << std::endl;
+                float gb_per_sec = num_btype / 1.E6 / ave_time;
+                std::cout << "Perf: " << std::setw(10) << ave_time << " ms, " << tflops
+                          << " TFlops, " << gb_per_sec << " GB/s, " << gemm_name << std::endl;
 
-            if(tflops > best_tflops)
-            {
-                best_gemm_name  = gemm_name;
-                best_tflops     = tflops;
-                best_ave_time   = ave_time;
-                best_gb_per_sec = gb_per_sec;
+                if(tflops > best_tflops)
+                {
+                    best_gemm_name  = gemm_name;
+                    best_tflops     = tflops;
+                    best_ave_time   = ave_time;
+                    best_gb_per_sec = gb_per_sec;
+                }
             }
 
             if(do_verification)
             {
+                bool instance_pass = true;
                 for(std::size_t i = 0; i < gemm_descs.size(); i++)
                 {
 
                     c_device_buf[i]->FromDevice(c_m_n_device_results[i].mData.data());
+                    c_device_buf[i]->SetZero();
 
                     Tensor<CDataType> c_m_n_host_result(
                         f_host_tensor_descriptor(Ms[i], Ns[i], StrideCs[i], CLayout{}));
@@ -274,7 +280,20 @@ bool profile_grouped_gemm_impl(int do_verification,
                                                               c_element_op);
 
                     ref_invoker.Run(ref_argument);
-                    pass = pass && ck::utils::check_err(c_m_n_device_results[i], c_m_n_host_result);
+                    if(std::is_same_v<CDataType, ck::half_t> && kbatch > 1)
+                    {
+                        instance_pass =
+                            instance_pass && ck::utils::check_err(c_m_n_device_results[i],
+                                                                  c_m_n_host_result,
+                                                                  "Error: Incorrect results!",
+                                                                  0.06);
+                    }
+                    else
+                    {
+                        instance_pass =
+                            instance_pass &&
+                            ck::utils::check_err(c_m_n_device_results[i], c_m_n_host_result);
+                    }
 
                     if(do_log)
                     {
@@ -289,16 +308,25 @@ bool profile_grouped_gemm_impl(int do_verification,
                             << std::endl;
                     }
                 }
+
+                std::cout << "Instance: " << gemm_name << " verification "
+                          << (instance_pass ? "SUCCEED" : "FAILED") << std::endl;
+
+                pass = pass && instance_pass;
             }
         }
         else
         {
-            std::cout << "does not support this GEMM problem" << std::endl;
+            std::cout << "Instance: " << gemm_name << ", does not support this GEMM problem"
+                      << std::endl;
         }
     }
 
-    std::cout << "Best Perf: " << best_ave_time << " ms, " << best_tflops << " TFlops, "
-              << best_gb_per_sec << " GB/s, " << best_gemm_name << std::endl;
+    if(time_kernel)
+    {
+        std::cout << "Best Perf: " << best_ave_time << " ms, " << best_tflops << " TFlops, "
+                  << best_gb_per_sec << " GB/s, " << best_gemm_name << std::endl;
+    }
 
     return pass;
 }
diff --git a/test/gemm_split_k/CMakeLists.txt b/test/gemm_split_k/CMakeLists.txt
index 09bbf79389..2274854f88 100644
--- a/test/gemm_split_k/CMakeLists.txt
+++ b/test/gemm_split_k/CMakeLists.txt
@@ -1,5 +1,4 @@
 if(GPU_TARGETS MATCHES "gfx908" OR GPU_TARGETS MATCHES "gfx90a" OR GPU_TARGETS MATCHES "gfx940")
-   add_test_executable(test_gemm_split_k gemm_split_k.cpp)
-   target_link_libraries(test_gemm_split_k PRIVATE utility)
-   target_link_libraries(test_gemm_split_k PRIVATE device_gemm_splitk_instance)
+   add_gtest_executable(test_gemm_splitk test_gemm_splitk.cpp)
+   target_link_libraries(test_gemm_splitk PRIVATE utility device_gemm_splitk_instance)
 endif()
diff --git a/test/gemm_split_k/gemm_split_k.cpp b/test/gemm_split_k/gemm_split_k.cpp
deleted file mode 100644
index 1edb5769c6..0000000000
--- a/test/gemm_split_k/gemm_split_k.cpp
+++ /dev/null
@@ -1,261 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
-
-#include <iostream>
-#include <initializer_list>
-#include <cstdlib>
-
-#include "ck/ck.hpp"
-#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
-#include "ck/tensor_operation/gpu/device/gemm_specialization.hpp"
-#include "ck/tensor_operation/gpu/element/element_wise_operation.hpp"
-
-#include "ck/library/tensor_operation_instance/gpu/gemm_splitk.hpp"
-
-#include "ck/library/utility/check_err.hpp"
-#include "ck/library/utility/device_memory.hpp"
-#include "ck/library/utility/host_tensor.hpp"
-#include "ck/library/utility/host_tensor_generator.hpp"
-#include "ck/library/utility/literals.hpp"
-#include "ck/library/reference_tensor_operation/cpu/reference_gemm.hpp"
-
-#include "ck/library/utility/host_gemm.hpp"
-
-enum struct GemmMatrixLayout
-{
-    MK_KN_MN, // 0
-    MK_NK_MN, // 1
-    KM_KN_MN, // 2
-    KM_NK_MN, // 3
-};
-
-template <typename T>
-static bool check_out(const Tensor<T>& ref, const Tensor<T>& result)
-{
-    float max_diff = 1e-6;
-
-    for(std::size_t i = 0; i < ref.mData.size(); ++i)
-    {
-        float diff = std::abs(double(ref.mData[i]) - double(result.mData[i]));
-        if(max_diff < diff)
-        {
-            return false;
-        }
-    }
-
-    return true;
-}
-
-struct gemmArgs
-{
-    GemmMatrixLayout layout;
-    int M;
-    int N;
-    int K;
-    int StrideA;
-    int StrideB;
-    int StrideC;
-    int KBatch;
-};
-
-int test_gemm(const gemmArgs& args)
-{
-    using Row = ck::tensor_layout::gemm::RowMajor;
-    using Col = ck::tensor_layout::gemm::ColumnMajor;
-
-    using PassThrough = ck::tensor_operation::element_wise::PassThrough;
-
-    bool a_row_major, b_row_major, c_row_major;
-
-    switch(args.layout)
-    {
-    case GemmMatrixLayout::MK_KN_MN:
-        a_row_major = true;
-        b_row_major = true;
-        c_row_major = true;
-        break;
-    case GemmMatrixLayout::MK_NK_MN:
-        a_row_major = true;
-        b_row_major = false;
-        c_row_major = true;
-        break;
-    case GemmMatrixLayout::KM_KN_MN:
-        a_row_major = false;
-        b_row_major = true;
-        c_row_major = true;
-        break;
-    case GemmMatrixLayout::KM_NK_MN:
-        a_row_major = false;
-        b_row_major = false;
-        c_row_major = true;
-        break;
-    default: printf("not supported layout"); return 1;
-    }
-
-    auto f_host_tensor_descriptor =
-        [](std::size_t row, std::size_t col, std::size_t stride, bool row_major) {
-            using namespace ck::literals;
-
-            if(row_major)
-            {
-                return HostTensorDescriptor({row, col}, {stride, 1_uz});
-            }
-            else
-            {
-                return HostTensorDescriptor({row, col}, {1_uz, stride});
-            }
-        };
-
-    Tensor<float> a_m_k(f_host_tensor_descriptor(args.M, args.K, args.StrideA, a_row_major));
-    Tensor<float> b_k_n(f_host_tensor_descriptor(args.K, args.N, args.StrideB, b_row_major));
-    Tensor<float> c_m_n_host_result(
-        f_host_tensor_descriptor(args.M, args.N, args.StrideC, c_row_major));
-    Tensor<float> c_m_n_device_result(
-        f_host_tensor_descriptor(args.M, args.N, args.StrideC, c_row_major));
-
-    // init data
-    std::size_t num_thread = 1;
-    a_m_k.GenerateTensorValue(GeneratorTensor_2<float>{-5, 5}, num_thread);
-    b_k_n.GenerateTensorValue(GeneratorTensor_2<float>{-5, 5}, num_thread);
-    // set zero to c_device_buf
-    c_m_n_device_result.GenerateTensorValue(GeneratorTensor_0<float>{}, num_thread);
-
-    host_gemm_mk_kn_mn(a_m_k,
-                       b_k_n,
-                       c_m_n_host_result,
-                       ck::tensor_operation::element_wise::PassThrough{},
-                       ck::tensor_operation::element_wise::PassThrough{},
-                       ck::tensor_operation::element_wise::PassThrough{});
-
-    DeviceMem a_device_buf(sizeof(float) * a_m_k.mDesc.GetElementSpaceSize());
-    DeviceMem b_device_buf(sizeof(float) * b_k_n.mDesc.GetElementSpaceSize());
-    DeviceMem c_device_buf(sizeof(float) * c_m_n_device_result.mDesc.GetElementSpaceSize());
-
-    a_device_buf.ToDevice(a_m_k.mData.data());
-    b_device_buf.ToDevice(b_k_n.mData.data());
-    c_device_buf.ToDevice(c_m_n_device_result.mData.data());
-
-    auto test = [&](auto a_layout, auto b_layout, auto c_layout) {
-        bool success = false;
-
-        using DeviceOp = ck::tensor_operation::device::DeviceGemmSplitK<decltype(a_layout),
-                                                                        decltype(b_layout),
-                                                                        decltype(c_layout),
-                                                                        float,
-                                                                        float,
-                                                                        float,
-                                                                        PassThrough,
-                                                                        PassThrough,
-                                                                        PassThrough>;
-
-        const auto gemm_ptrs =
-            ck::tensor_operation::device::instance::DeviceOperationInstanceFactory<
-                DeviceOp>::GetInstances();
-
-        for(auto& gemm_ptr : gemm_ptrs)
-        {
-            auto argument_ptr =
-                gemm_ptr->MakeArgumentPointer(static_cast<float*>(a_device_buf.GetDeviceBuffer()),
-                                              static_cast<float*>(b_device_buf.GetDeviceBuffer()),
-                                              static_cast<float*>(c_device_buf.GetDeviceBuffer()),
-                                              args.M,
-                                              args.N,
-                                              args.K,
-                                              args.StrideA,
-                                              args.StrideB,
-                                              args.StrideC,
-                                              ck::tensor_operation::element_wise::PassThrough{},
-                                              ck::tensor_operation::element_wise::PassThrough{},
-                                              ck::tensor_operation::element_wise::PassThrough{},
-                                              args.KBatch);
-
-            auto invoker_ptr = gemm_ptr->MakeInvokerPointer();
-
-            if(gemm_ptr->IsSupportedArgument(argument_ptr.get()))
-            {
-                invoker_ptr->Run(argument_ptr.get());
-
-                c_device_buf.FromDevice(c_m_n_device_result.mData.data());
-
-                if(!check_out(c_m_n_host_result, c_m_n_device_result))
-                {
-                    success = false;
-                    break;
-                }
-                success = true;
-            }
-        }
-
-        return success;
-    };
-
-    bool success = false;
-
-    if(args.layout == GemmMatrixLayout::MK_KN_MN)
-    {
-        success = test(Row{}, Row{}, Row{});
-    }
-    else if(args.layout == GemmMatrixLayout::MK_NK_MN)
-    {
-        success = test(Row{}, Col{}, Row{});
-    }
-    else if(args.layout == GemmMatrixLayout::KM_KN_MN)
-    {
-        success = test(Col{}, Row{}, Row{});
-    }
-    else
-    {
-        success = test(Col{}, Col{}, Row{});
-    }
-
-    auto error_code = 0;
-    if(success)
-    {
-        std::cout << "test split k : Pass" << std::endl;
-    }
-    else
-    {
-        std::cout << "test split k: Fail " << std::endl;
-        error_code = -1; // test needs to report failure
-    }
-    return error_code;
-}
-
-int main(int argc, char* argv[])
-{
-    std::vector<gemmArgs> test_cases;
-    if(argc == 1)
-    {
-        test_cases = {{GemmMatrixLayout::MK_KN_MN, 1024, 1024, 1024, 1024, 1024, 1024, 2},
-                      {GemmMatrixLayout::MK_KN_MN, 1024, 1024, 1024, 1024, 1024, 1024, 8}};
-    }
-    else if(argc == 9)
-    {
-        const auto layout = static_cast<GemmMatrixLayout>(std::stoi(argv[1]));
-
-        const int M = std::stoi(argv[2]);
-        const int N = std::stoi(argv[3]);
-        const int K = std::stoi(argv[4]);
-
-        const int StrideA = std::stoi(argv[5]);
-        const int StrideB = std::stoi(argv[6]);
-        const int StrideC = std::stoi(argv[7]);
-        const int KBatch  = std::stoi(argv[8]);
-        test_cases        = {{layout, M, N, K, StrideA, StrideB, StrideC, KBatch}};
-    }
-    else
-    {
-        printf("arg1: matrix layout (0: A[m, k] * B[k, n] = C[m, n];\n");
-        printf("                     1: A[m, k] * B[n, k] = C[m, n];\n");
-        printf("                     2: A[k, m] * B[k, n] = C[m, n];\n");
-        printf("                     3: A[k, m] * B[n, k] = C[m, n])\n");
-        printf("arg2 to 7: M, N, K, StrideA, StrideB, StrideC KBatch\n");
-        return -1;
-    }
-    bool error = false;
-    for(const auto& kinder : test_cases)
-    {
-        error |= test_gemm(kinder);
-    }
-    return error ? 1 : 0;
-}
diff --git a/test/gemm_split_k/test_gemm_splitk.cpp b/test/gemm_split_k/test_gemm_splitk.cpp
new file mode 100644
index 0000000000..9eba5bba37
--- /dev/null
+++ b/test/gemm_split_k/test_gemm_splitk.cpp
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
+#include <tuple>
+
+#include "gtest/gtest.h"
+#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
+#include "test_gemm_splitk_util.hpp"
+
+using F16 = ck::half_t;
+using F32 = float;
+
+using Row = ck::tensor_layout::gemm::RowMajor;
+using Col = ck::tensor_layout::gemm::ColumnMajor;
+
+namespace {
+
+template <typename X, typename Y>
+struct tuple_concat;
+
+template <typename... Xs, typename... Ys>
+struct tuple_concat<std::tuple<Xs...>, std::tuple<Ys...>>
+{
+    using type = std::tuple<Xs..., Ys...>;
+};
+
+} // namespace
+
+template <typename Tuple>
+class TestGemmSplitK_MK_KN
+    : public ck::test::TestGemmSplitK<typename tuple_concat<std::tuple<Row, Row>, Tuple>::type>
+{
+};
+
+template <typename Tuple>
+class TestGemmSplitK_MK_NK
+    : public ck::test::TestGemmSplitK<typename tuple_concat<std::tuple<Row, Col>, Tuple>::type>
+{
+};
+
+template <typename Tuple>
+class TestGemmSplitK_KM_KN
+    : public ck::test::TestGemmSplitK<typename tuple_concat<std::tuple<Col, Row>, Tuple>::type>
+{
+};
+
+template <typename Tuple>
+class TestGemmSplitK_KM_NK
+    : public ck::test::TestGemmSplitK<typename tuple_concat<std::tuple<Col, Col>, Tuple>::type>
+{
+};
+
+// clang-format off
+using KernelTypes = ::testing::Types<
+    //         ADataType, BDataType, CDataType
+    std::tuple<      F16,       F16,       F16>,
+    std::tuple<      F32,       F32,       F32>
+    >;
+// clang-format on
+
+TYPED_TEST_SUITE(TestGemmSplitK_MK_KN, KernelTypes);
+TYPED_TEST_SUITE(TestGemmSplitK_MK_NK, KernelTypes);
+TYPED_TEST_SUITE(TestGemmSplitK_KM_KN, KernelTypes);
+TYPED_TEST_SUITE(TestGemmSplitK_KM_NK, KernelTypes);
+
+#include "test_gemm_splitk_ut_cases.inc"
diff --git a/test/gemm_split_k/test_gemm_splitk_ut_cases.inc b/test/gemm_split_k/test_gemm_splitk_ut_cases.inc
new file mode 100644
index 0000000000..54b9c6c9e3
--- /dev/null
+++ b/test/gemm_split_k/test_gemm_splitk_ut_cases.inc
@@ -0,0 +1,217 @@
+#pragma once
+
+TYPED_TEST(TestGemmSplitK_MK_KN, SmallM)
+{
+    std::vector<int> Ms{0, 1, 2, 3, 4, 5, 6};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_NK, SmallM)
+{
+    std::vector<int> Ms{0, 1, 2, 3, 4, 5, 6};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_KN, SmallM)
+{
+    std::vector<int> Ms{0, 1, 2, 3, 4, 5, 6};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_NK, SmallM)
+{
+    std::vector<int> Ms{0, 1, 2, 3, 4, 5, 6};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_KN, MidLargeM)
+{
+    std::vector<int> Ms{127, 255, 312, 799, 1573};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_NK, MidLargeM)
+{
+    std::vector<int> Ms{127, 255, 312, 799, 1573};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_KN, MidLargeM)
+{
+    std::vector<int> Ms{127, 255, 312, 799, 1573};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_NK, MidLargeM)
+{
+    std::vector<int> Ms{127, 255, 312, 799, 1573};
+    constexpr int N = 512;
+    constexpr int K = 320;
+
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_KN, PaddK)
+{
+    std::vector<int> Ms{127};
+    constexpr int N = 512;
+    constexpr int K = 437;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_NK, PaddK)
+{
+    std::vector<int> Ms{127};
+    constexpr int N = 512;
+    constexpr int K = 437;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_KN, PaddK)
+{
+    std::vector<int> Ms{127};
+    constexpr int N = 512;
+    constexpr int K = 437;
+
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_NK, PaddK)
+{
+    std::vector<int> Ms{127};
+    constexpr int N = 512;
+    constexpr int K = 437;
+
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_KN, Regular)
+{
+    std::vector<int> Ms{512};
+    constexpr int N = 512;
+    constexpr int K = 512;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_MK_NK, Regular)
+{
+    std::vector<int> Ms{512};
+    constexpr int N = 512;
+    constexpr int K = 512;
+
+    constexpr int StrideA = K;
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, StrideA, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_KN, Regular)
+{
+    std::vector<int> Ms{512};
+    constexpr int N = 512;
+    constexpr int K = 512;
+
+    constexpr int StrideB = N;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
+
+TYPED_TEST(TestGemmSplitK_KM_NK, Regular)
+{
+    std::vector<int> Ms{512};
+    constexpr int N = 512;
+    constexpr int K = 512;
+
+    constexpr int StrideB = K;
+    constexpr int StrideC = N;
+
+    for(int M : Ms)
+        this->Run(M, N, K, M, StrideB, StrideC);
+}
diff --git a/test/gemm_split_k/test_gemm_splitk_util.hpp b/test/gemm_split_k/test_gemm_splitk_util.hpp
new file mode 100644
index 0000000000..8243747a69
--- /dev/null
+++ b/test/gemm_split_k/test_gemm_splitk_util.hpp
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+#include <string>
+#include <sstream>
+#include <tuple>
+#include <vector>
+#include <gtest/gtest.h>
+
+#include "ck/ck.hpp"
+#include "ck/tensor_operation/gpu/element/element_wise_operation.hpp"
+#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
+#include "include/ck/utility/data_type.hpp"
+#include "profiler/profile_gemm_splitk_impl.hpp"
+
+namespace ck {
+namespace test {
+
+template <typename Tuple>
+class TestGemmSplitK : public testing::Test
+{
+    using Row = ck::tensor_layout::gemm::RowMajor;
+    using F32 = float;
+
+    protected:
+    using ALayout   = std::tuple_element_t<0, Tuple>;
+    using BLayout   = std::tuple_element_t<1, Tuple>;
+    using CLayout   = Row;
+    using ADataType = std::tuple_element_t<2, Tuple>;
+    using BDataType = std::tuple_element_t<3, Tuple>;
+    using CDataType = std::tuple_element_t<4, Tuple>;
+
+    public:
+    static constexpr bool verify_     = true;
+    static constexpr int init_method_ = 1; // decimal value initialization
+    static constexpr bool log_        = false;
+    static constexpr bool bench_      = false; // measure kernel performance
+    std::vector<int> k_batches_;
+
+    void SetUp() override { k_batches_ = {1, 2, 3, 5, 8}; }
+
+    void Run(const int M,
+             const int N,
+             const int K,
+             const int StrideA,
+             const int StrideB,
+             const int StrideC)
+    {
+        for(auto kb : k_batches_)
+        {
+            RunSingle(M, N, K, StrideA, StrideB, StrideC, kb);
+        }
+    }
+
+    void RunSingle(const int M,
+                   const int N,
+                   const int K,
+                   const int StrideA,
+                   const int StrideB,
+                   const int StrideC,
+                   int kbatch = 1)
+    {
+        bool pass = ck::profiler::profile_gemm_splitk_impl<ADataType,
+                                                           BDataType,
+                                                           F32,
+                                                           CDataType,
+                                                           ALayout,
+                                                           BLayout,
+                                                           CLayout>(
+            verify_, init_method_, log_, bench_, M, N, K, StrideA, StrideB, StrideC, kbatch);
+        EXPECT_TRUE(pass);
+    }
+};
+
+} // namespace test
+} // namespace ck
diff --git a/test/grouped_gemm/CMakeLists.txt b/test/grouped_gemm/CMakeLists.txt
index a7619eac6e..40f634d8b3 100644
--- a/test/grouped_gemm/CMakeLists.txt
+++ b/test/grouped_gemm/CMakeLists.txt
@@ -1,5 +1,9 @@
 if(GPU_TARGETS MATCHES "gfx908" OR GPU_TARGETS MATCHES "gfx90a" OR GPU_TARGETS MATCHES "gfx940")
-   add_test_executable(test_grouped_gemm_fp16 grouped_gemm_fp16.cpp)
-   target_link_libraries(test_grouped_gemm_fp16 PRIVATE utility)
-   target_link_libraries(test_grouped_gemm_fp16 PRIVATE device_grouped_gemm_instance)
+   add_custom_target(test_grouped_gemm)
+   add_gtest_executable(test_grouped_gemm_splitk test_grouped_gemm_splitk.cpp)
+   add_gtest_executable(test_grouped_gemm_interface test_grouped_gemm_interface.cpp)
+   target_link_libraries(test_grouped_gemm_splitk PRIVATE utility device_grouped_gemm_instance)
+   target_link_libraries(test_grouped_gemm_interface PRIVATE utility device_grouped_gemm_instance)
+   
+   add_dependencies(test_grouped_gemm test_grouped_gemm_splitk test_grouped_gemm_interface)
 endif()
diff --git a/test/grouped_gemm/grouped_gemm_fp16.cpp b/test/grouped_gemm/grouped_gemm_fp16.cpp
deleted file mode 100644
index f20d750d36..0000000000
--- a/test/grouped_gemm/grouped_gemm_fp16.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
-
-#include <iostream>
-#include <random>
-
-#include "profiler/profile_grouped_gemm_impl.hpp"
-
-namespace {
-
-using ADataType   = ck::half_t;
-using BDataType   = ck::half_t;
-using CDataType   = ck::half_t;
-using AccDataType = float;
-
-using Row = ck::tensor_layout::gemm::RowMajor;
-using Col = ck::tensor_layout::gemm::ColumnMajor;
-
-template <typename ALayout, typename BLayout, typename CLayout>
-bool TestGroupedGemm()
-{
-
-    std::mt19937 gen(19391);
-    std::uniform_int_distribution<> distrib(1, 10);
-    int group_count = distrib(gen);
-
-    // GEMM shape
-    std::vector<ck::tensor_operation::device::GemmDesc> gemm_descs;
-    std::vector<const void*> p_a, p_b;
-    std::vector<void*> p_c;
-
-    std::vector<int> Ms, Ns, Ks, StrideAs, StrideBs, StrideCs;
-
-    for(int i = 0; i < group_count; i++)
-    {
-        Ms.push_back(256 + 256 * distrib(gen));
-        Ns.push_back(256 + 256 * distrib(gen));
-        Ks.push_back(128 + 128 * distrib(gen));
-
-        StrideAs.push_back(std::is_same<Row, ALayout>::value ? Ks[i] : Ms[i]);
-        StrideBs.push_back(std::is_same<Row, BLayout>::value ? Ns[i] : Ks[i]);
-        StrideCs.push_back(std::is_same<Row, CLayout>::value ? Ns[i] : Ms[i]);
-    }
-
-    return ck::profiler::profile_grouped_gemm_impl<ADataType,
-                                                   BDataType,
-                                                   CDataType,
-                                                   AccDataType,
-                                                   ALayout,
-                                                   BLayout,
-                                                   CLayout>(
-        true, 1, false, 1, Ms, Ns, Ks, StrideAs, StrideBs, StrideCs);
-}
-
-} // anonymous namespace
-
-int main()
-{
-    bool res = true;
-
-    res = res && TestGroupedGemm<Row, Row, Row>();
-    res = res && TestGroupedGemm<Row, Col, Row>();
-    res = res && TestGroupedGemm<Col, Row, Row>();
-    res = res && TestGroupedGemm<Col, Col, Row>();
-
-    std::cout << "TestGroupedGemm ..... " << (res ? "SUCCESS" : "FAILURE") << std::endl;
-
-    return res ? 0 : 1;
-}
diff --git a/test/grouped_gemm/test_grouped_gemm_interface.cpp b/test/grouped_gemm/test_grouped_gemm_interface.cpp
new file mode 100644
index 0000000000..ffa8840fc7
--- /dev/null
+++ b/test/grouped_gemm/test_grouped_gemm_interface.cpp
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#include <stdexcept>
+#include <vector>
+#include "gtest/gtest.h"
+
+#include "ck/ck.hpp"
+#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
+#include "ck/tensor_operation/gpu/device/gemm_specialization.hpp"
+#include "test_grouped_gemm_util.hpp"
+
+class TestGGemmSplitKInterface_MKNKMN : public ::testing::Test
+{
+    protected:
+    using Row = ck::tensor_layout::gemm::RowMajor;
+    using Col = ck::tensor_layout::gemm::ColumnMajor;
+
+    using ALayout = Row;
+    using BLayout = Col;
+    using ELayout = Row;
+
+    static constexpr auto GemmDefault = ck::tensor_operation::device::GemmSpecialization::Default;
+
+    template <ck::tensor_operation::device::GemmSpecialization GemmSpec,
+              ck::index_t KPerBlock,
+              ck::index_t K1,
+              ck::index_t ABlockTransferSrcScalarPerVector,
+              ck::index_t BBlockTransferSrcScalarPerVector,
+              ck::index_t CDEBlockTransferScalarPerVector_NPerBlock>
+    using GGemmInstance =
+        ck::test::DeviceGroupedGemmSplitkInstanceWrapper<ALayout,
+                                                         BLayout,
+                                                         ELayout,
+                                                         GemmSpec,
+                                                         KPerBlock,
+                                                         K1,
+                                                         ABlockTransferSrcScalarPerVector,
+                                                         BBlockTransferSrcScalarPerVector,
+                                                         CDEBlockTransferScalarPerVector_NPerBlock>;
+
+    using DefaultGGemmInstance = GGemmInstance<GemmDefault, 32, 8, 4, 8, 8>;
+};
+
+TEST_F(TestGGemmSplitKInterface_MKNKMN, TileSize)
+{
+    std::vector<int> Ms{128, 256, 188, 512};
+    constexpr int N = 256;
+    constexpr int K = 128;
+
+    std::vector<int> Ns(Ms.size(), N);
+    std::vector<int> Ks(Ms.size(), K);
+    std::vector<int> StrideAs(Ms.size(), K);
+    std::vector<int> StrideBs(Ms.size(), K);
+    std::vector<int> StrideCs(Ms.size(), N);
+
+    // M % MPerBlock
+    EXPECT_FALSE(DefaultGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ms = std::vector<int>{256, 128, 128, 512};
+    Ns = std::vector<int>{256, 177, 128, 512};
+    // N % NPerBlock
+    EXPECT_FALSE(DefaultGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+}
+
+TEST_F(TestGGemmSplitKInterface_MKNKMN, VectorLoadWidth)
+{
+    static constexpr auto GemmMNKPadding =
+        ck::tensor_operation::device::GemmSpecialization::MNKPadding;
+    using PaddedGGemmInstance = GGemmInstance<GemmMNKPadding, 32, 8, 4, 8, 8>;
+
+    std::vector<int> Ms{128, 256, 256, 512};
+    constexpr int N = 256;
+    constexpr int K = 512;
+
+    std::vector<int> Ns(Ms.size(), N);
+    std::vector<int> Ks(Ms.size(), K);
+    std::vector<int> StrideAs(Ms.size(), K);
+    std::vector<int> StrideBs(Ms.size(), K);
+    std::vector<int> StrideCs(Ms.size(), N);
+
+    // K % ABlockTransferSrcScalarPerVector
+    Ks = std::vector<int>{256, 177, 128, 512};
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ks = std::vector<int>{256, 164, 128, 512};
+    // K % BBlockTransferSrcScalarPerVector
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ks = std::vector<int>(4, 128);
+    Ns = std::vector<int>{256, 127, 128, 512};
+    // N % CBlockTransferScalarPerVector_NWaveNPerXDL
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+}
+
+TEST_F(TestGGemmSplitKInterface_MKNKMN, KLoops)
+{
+    std::vector<int> Ms{128, 256, 256, 512};
+    constexpr int N      = 256;
+    constexpr int K      = 128;
+    constexpr int kbatch = 4;
+
+    std::vector<int> Ns(Ms.size(), N);
+    std::vector<int> Ks(Ms.size(), K);
+    std::vector<int> StrideAs(Ms.size(), K);
+    std::vector<int> StrideBs(Ms.size(), K);
+    std::vector<int> StrideCs(Ms.size(), N);
+
+    // kloops % 2
+    Ks = std::vector<int>{256, 512, 320, 768};
+    EXPECT_FALSE(
+        DefaultGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, kbatch));
+
+    // Not all gemms have same value for main_k0_block_loop!
+    Ks = std::vector<int>{256, 512, 512, 512};
+    EXPECT_THROW(DefaultGGemmInstance{}.Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, kbatch),
+                 std::runtime_error);
+}
+
+class TestGGemmSplitKInterface_KMKNNM : public ::testing::Test
+{
+    protected:
+    using Row = ck::tensor_layout::gemm::RowMajor;
+    using Col = ck::tensor_layout::gemm::ColumnMajor;
+
+    using ALayout = Col;
+    using BLayout = Row;
+    using ELayout = Col;
+
+    static constexpr auto GemmDefault = ck::tensor_operation::device::GemmSpecialization::Default;
+
+    template <ck::tensor_operation::device::GemmSpecialization GemmSpec,
+              ck::index_t KPerBlock,
+              ck::index_t K1,
+              ck::index_t ABlockTransferSrcScalarPerVector,
+              ck::index_t BBlockTransferSrcScalarPerVector,
+              ck::index_t CDEBlockTransferScalarPerVector_NPerBlock>
+    using GGemmInstance =
+        ck::test::DeviceGroupedGemmSplitkInstanceWrapper<ALayout,
+                                                         BLayout,
+                                                         ELayout,
+                                                         GemmSpec,
+                                                         KPerBlock,
+                                                         K1,
+                                                         ABlockTransferSrcScalarPerVector,
+                                                         BBlockTransferSrcScalarPerVector,
+                                                         CDEBlockTransferScalarPerVector_NPerBlock>;
+
+    using DefaultGGemmInstance = GGemmInstance<GemmDefault, 32, 8, 4, 8, 4>;
+};
+
+TEST_F(TestGGemmSplitKInterface_KMKNNM, TileSize)
+{
+    std::vector<int> Ms{128, 256, 188, 512};
+    constexpr int N = 256;
+    constexpr int K = 128;
+
+    std::vector<int> Ns(Ms.size(), N);
+    std::vector<int> Ks(Ms.size(), K);
+    std::vector<int> StrideAs(Ms.size(), K);
+    std::vector<int> StrideBs(Ms.size(), K);
+    std::vector<int> StrideCs(Ms.size(), N);
+
+    // M % MPerBlock
+    EXPECT_FALSE(DefaultGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ms = std::vector<int>{128, 256, 256, 512};
+    Ns = std::vector<int>{256, 177, 128, 512};
+    // N % NPerBlock
+    EXPECT_FALSE(DefaultGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+}
+
+TEST_F(TestGGemmSplitKInterface_KMKNNM, VectorLoadWidth)
+{
+    static constexpr auto GemmMNKPadding =
+        ck::tensor_operation::device::GemmSpecialization::MNKPadding;
+    using PaddedGGemmInstance = GGemmInstance<GemmMNKPadding, 32, 8, 2, 8, 4>;
+
+    std::vector<int> Ms{128, 256, 256, 512};
+    constexpr int N = 256;
+    constexpr int K = 512;
+
+    std::vector<int> Ns(Ms.size(), N);
+    std::vector<int> Ks(Ms.size(), K);
+    std::vector<int> StrideAs(Ms.size(), K);
+    std::vector<int> StrideBs(Ms.size(), K);
+    std::vector<int> StrideCs(Ms.size(), N);
+
+    // M % ABlockTransferSrcScalarPerVector
+    Ms = std::vector<int>{256, 177, 128, 512};
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ms = std::vector<int>{128, 256, 256, 512};
+    Ns = std::vector<int>{256, 164, 128, 512};
+    // N % BBlockTransferSrcScalarPerVector
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+
+    Ns = std::vector<int>{128, 256, 256, 512};
+    Ms = std::vector<int>{256, 130, 128, 512};
+    // M % CBlockTransferScalarPerVector_NWaveNPerXDL
+    EXPECT_FALSE(PaddedGGemmInstance{}.IsSupported(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs));
+}
diff --git a/test/grouped_gemm/test_grouped_gemm_splitk.cpp b/test/grouped_gemm/test_grouped_gemm_splitk.cpp
new file mode 100644
index 0000000000..d9282fa924
--- /dev/null
+++ b/test/grouped_gemm/test_grouped_gemm_splitk.cpp
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#include <tuple>
+#include <vector>
+
+#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
+#include "ck/utility/data_type.hpp"
+
+#include "gtest/gtest.h"
+#include "test_grouped_gemm_util.hpp"
+
+using F16 = ck::half_t;
+using Row = ck::tensor_layout::gemm::RowMajor;
+using Col = ck::tensor_layout::gemm::ColumnMajor;
+
+using RRR_F16_F16_F16 = ck::test::TestGroupedGemm<std::tuple<Row, Row, Row, F16, F16, F16>>;
+using RCR_F16_F16_F16 = ck::test::TestGroupedGemm<std::tuple<Row, Col, Row, F16, F16, F16>>;
+
+using RRR_F16_F16_F16_LargeK = ck::test::TestGroupedGemm<std::tuple<Row, Row, Row, F16, F16, F16>>;
+using RCR_F16_F16_F16_LargeK = ck::test::TestGroupedGemm<std::tuple<Row, Col, Row, F16, F16, F16>>;
+
+const std::vector<int> KBATCH{1, 2, 3, 5, 8};
+
+INSTANTIATE_TEST_SUITE_P(TestGroupedGemm_splitk_MK_KN, RRR_F16_F16_F16, testing::ValuesIn(KBATCH));
+INSTANTIATE_TEST_SUITE_P(TestGroupedGemm_splitk_MK_NK, RCR_F16_F16_F16, testing::ValuesIn(KBATCH));
+INSTANTIATE_TEST_SUITE_P(TestGroupedGemm_splitk_LargeK_MK_KN,
+                         RRR_F16_F16_F16_LargeK,
+                         testing::Values(32, 64));
+INSTANTIATE_TEST_SUITE_P(TestGroupedGemm_splitk_LargeK_MK_NK,
+                         RCR_F16_F16_F16_LargeK,
+                         testing::Values(32, 64));
+
+#include "test_grouped_gemm_ut_cases.inc"
diff --git a/test/grouped_gemm/test_grouped_gemm_ut_cases.inc b/test/grouped_gemm/test_grouped_gemm_ut_cases.inc
new file mode 100644
index 0000000000..d94d140d97
--- /dev/null
+++ b/test/grouped_gemm/test_grouped_gemm_ut_cases.inc
@@ -0,0 +1,180 @@
+#pragma once
+
+TEST_P(RRR_F16_F16_F16, TinyCases)
+{
+    const std::vector<int> Ms{0, 1};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RRR_F16_F16_F16, SmallCases)
+{
+    const std::vector<int> Ms{2, 1, 3, 4, 5, 0};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RRR_F16_F16_F16, MidCases)
+{
+    const std::vector<int> Ms{167, 183, 177, 153, 139, 204};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RRR_F16_F16_F16, Regular)
+{
+    const std::vector<int> Ms{64, 128, 256};
+    constexpr int N = 768;
+    constexpr int K = 320;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RRR_F16_F16_F16, MNKPadded)
+{
+    const std::vector<int> Ms{127, 150, 188, 210};
+    constexpr int N = 136;
+    constexpr int K = 280;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16, TinyCases)
+{
+    const std::vector<int> Ms{0, 1};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16, SmallCases)
+{
+    const std::vector<int> Ms{2, 1, 3, 4, 5, 0};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16, MidCases)
+{
+    const std::vector<int> Ms{167, 183, 177, 153, 139, 204};
+    constexpr int N = 768;
+    constexpr int K = 544;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16, Regular)
+{
+    const std::vector<int> Ms{32, 64, 128, 256};
+    constexpr int N = 768;
+    constexpr int K = 320;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16, MNKPadded)
+{
+    const std::vector<int> Ms{127, 150, 188, 210};
+    constexpr int N = 136;
+    constexpr int K = 280;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RRR_F16_F16_F16_LargeK, TestLargeKBatch)
+{
+    const std::vector<int> Ms{188, 210};
+    constexpr int N = 768;
+    constexpr int K = 4096;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), N);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
+
+TEST_P(RCR_F16_F16_F16_LargeK, TestLargeKBatch)
+{
+    const std::vector<int> Ms{188, 210};
+    constexpr int N = 768;
+    constexpr int K = 4096;
+
+    const std::vector<int> Ns(Ms.size(), N);
+    const std::vector<int> Ks(Ms.size(), K);
+    const std::vector<int> StrideAs(Ms.size(), K);
+    const std::vector<int> StrideBs(Ms.size(), K);
+    const std::vector<int> StrideCs(Ms.size(), N);
+
+    this->Run(Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, this->GetParam());
+}
diff --git a/test/grouped_gemm/test_grouped_gemm_util.hpp b/test/grouped_gemm/test_grouped_gemm_util.hpp
new file mode 100644
index 0000000000..b61118b512
--- /dev/null
+++ b/test/grouped_gemm/test_grouped_gemm_util.hpp
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+#include <array>
+#include <string>
+#include <sstream>
+#include <tuple>
+#include <vector>
+#include <gtest/gtest.h>
+
+#include "ck/ck.hpp"
+#include "ck/stream_config.hpp"
+#include "ck/tensor_operation/gpu/element/element_wise_operation.hpp"
+#include "ck/tensor_operation/gpu/device/gemm_specialization.hpp"
+#include "ck/tensor_operation/gpu/device/impl/device_grouped_gemm_xdl_splitk_cshuffle.hpp"
+#include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
+#include "ck/library/utility/device_memory.hpp"
+#include "ck/utility/data_type.hpp"
+#include "ck/utility/sequence.hpp"
+#include "ck/utility/tuple.hpp"
+#include "ck/utility/number.hpp"
+#include "profiler/profile_grouped_gemm_impl.hpp"
+
+namespace ck {
+namespace test {
+
+template <typename Range>
+std::string serialize_range(const Range& range)
+{
+    std::stringstream ss;
+    for(auto& r : range)
+    {
+        ss << r << ", ";
+    }
+    std::string str = ss.str();
+    return std::string(str.begin(), str.end() - 2);
+}
+
+template <typename Tuple>
+class TestGroupedGemm : public testing::TestWithParam<int>
+{
+    protected:
+    using ALayout   = std::tuple_element_t<0, Tuple>;
+    using BLayout   = std::tuple_element_t<1, Tuple>;
+    using ELayout   = std::tuple_element_t<2, Tuple>;
+    using ADataType = std::tuple_element_t<3, Tuple>;
+    using BDataType = std::tuple_element_t<4, Tuple>;
+    using EDataType = std::tuple_element_t<5, Tuple>;
+
+    public:
+    static constexpr bool verify_     = true;
+    static constexpr int init_method_ = 1; // decimal value initialization
+    static constexpr bool log_        = false;
+    static constexpr bool bench_      = false; // measure kernel performance
+
+    void SetUp() override {}
+
+    void Run(const std::vector<int>& Ms,
+             const std::vector<int>& Ns,
+             const std::vector<int>& Ks,
+             const std::vector<int>& StrideAs,
+             const std::vector<int>& StrideBs,
+             const std::vector<int>& StrideCs,
+             int kbatch = 1)
+    {
+        bool pass = ck::profiler::profile_grouped_gemm_impl<ADataType,
+                                                            BDataType,
+                                                            EDataType,
+                                                            float,
+                                                            ALayout,
+                                                            BLayout,
+                                                            ELayout>(
+            verify_, init_method_, log_, bench_, Ms, Ns, Ks, StrideAs, StrideBs, StrideCs, kbatch);
+        EXPECT_TRUE(pass);
+    }
+};
+
+template <typename ALayout,
+          typename BLayout,
+          typename ELayout,
+          tensor_operation::device::GemmSpecialization GemmSpec,
+          ck::index_t KPerBlock,
+          ck::index_t K1,
+          ck::index_t ABlockTransferSrcScalarPerVector,
+          ck::index_t BBlockTransferSrcScalarPerVector,
+          index_t CDEBlockTransferScalarPerVector_NPerBlock>
+struct DeviceGroupedGemmSplitkInstanceWrapper
+{
+    using F16         = half_t;
+    using F32         = float;
+    using Row         = ck::tensor_layout::gemm::RowMajor;
+    using Col         = ck::tensor_layout::gemm::ColumnMajor;
+    using PassThrough = tensor_operation::element_wise::PassThrough;
+
+    using EmptyTuple = ck::Tuple<>;
+
+    template <ck::index_t... Is>
+    using S = ck::Sequence<Is...>;
+
+    template <ck::index_t N>
+    using I = ck::Number<N>;
+
+    using ABlockTransferThreadClusterArrageOrder =
+        std::conditional_t<std::is_same_v<ALayout, Row>, S<0, 2, 1, 3>, S<0, 1, 3, 2>>;
+    using ABlockTransferSrcAccessOrder =
+        std::conditional_t<std::is_same_v<ALayout, Row>, S<0, 2, 1, 3>, S<0, 1, 3, 2>>;
+    using ABlockTransferSrcVectorDim = std::conditional_t<std::is_same_v<ALayout, Row>, I<3>, I<2>>;
+    using ABlockTransferDstScalarPerVector_K1 =
+        std::conditional_t<std::is_same_v<ALayout, Row>, I<8>, I<2>>;
+    using ABlockLdsAddExtraM = std::conditional_t<std::is_same_v<ALayout, Row>, I<1>, I<0>>;
+
+    using BBlockTransferThreadClusterArrageOrder =
+        std::conditional_t<std::is_same_v<BLayout, Row>, S<0, 1, 3, 2>, S<0, 2, 1, 3>>;
+    using BBlockTransferSrcAccessOrder =
+        std::conditional_t<std::is_same_v<BLayout, Row>, S<0, 1, 3, 2>, S<0, 2, 1, 3>>;
+    using BBlockTransferSrcVectorDim = std::conditional_t<std::is_same_v<BLayout, Row>, I<2>, I<3>>;
+    using BBlockTransferDstScalarPerVector_K1 =
+        std::conditional_t<std::is_same_v<ALayout, Row>, I<2>, I<8>>;
+    using BBlockLdsAddExtraM = std::conditional_t<std::is_same_v<ALayout, Row>, I<0>, I<1>>;
+
+    using DeviceGroupedGemmSplitKInstance =
+        tensor_operation::device::DeviceGroupedGemmXdlSplitKCShuffle<
+            ALayout,
+            BLayout,
+            EmptyTuple,
+            ELayout,
+            F16,
+            F16,
+            F32,
+            F16,
+            EmptyTuple,
+            F16,
+            PassThrough,
+            PassThrough,
+            PassThrough,
+            GemmSpec,
+            1,
+            128,
+            128,
+            128,
+            KPerBlock,
+            K1,
+            K1,
+            32,
+            32,
+            4,
+            2,
+            S<1, 4, 32, 1>,
+            ABlockTransferThreadClusterArrageOrder,
+            ABlockTransferSrcAccessOrder,
+            ABlockTransferSrcVectorDim::value,
+            ABlockTransferSrcScalarPerVector,
+            ABlockTransferDstScalarPerVector_K1::value,
+            ABlockLdsAddExtraM::value,
+            S<1, 4, 32, 1>,
+            BBlockTransferThreadClusterArrageOrder,
+            BBlockTransferSrcAccessOrder,
+            BBlockTransferSrcVectorDim::value,
+            BBlockTransferSrcScalarPerVector,
+            BBlockTransferDstScalarPerVector_K1::value,
+            BBlockLdsAddExtraM::value,
+            1,
+            1,
+            S<1, 16, 1, 8>,
+            CDEBlockTransferScalarPerVector_NPerBlock>;
+
+    bool IsSupported(const std::vector<int>& Ms,
+                     const std::vector<int>& Ns,
+                     const std::vector<int>& Ks,
+                     const std::vector<int>& StrideAs,
+                     const std::vector<int>& StrideBs,
+                     const std::vector<int>& StrideCs,
+                     int kbatch = 1) const
+    {
+        std::size_t n_groups = Ms.size();
+        EXPECT_TRUE(Ns.size() == n_groups && Ks.size() == n_groups && StrideAs.size() == n_groups &&
+                    StrideBs.size() == n_groups && StrideCs.size() == n_groups)
+            << "The number of groups is not consistent!";
+
+        std::vector<tensor_operation::device::GemmDesc> gemm_descs;
+
+        for(std::size_t i = 0; i < n_groups; ++i)
+        {
+            gemm_descs.push_back(tensor_operation::device::GemmDesc{
+                Ms[i], Ns[i], Ks[i], StrideAs[i], StrideBs[i], StrideCs[i], {}});
+        }
+
+        std::vector<const void*> p_As(n_groups, nullptr);
+        std::vector<const void*> p_Bs(n_groups, nullptr);
+        std::vector<void*> p_Cs(n_groups, nullptr);
+        auto p_Ds = std::vector<std::array<const void*, 0>>{};
+
+        auto ggemm_instance = DeviceGroupedGemmSplitKInstance{};
+        auto argument       = ggemm_instance.MakeArgument(
+            p_As, p_Bs, p_Ds, p_Cs, gemm_descs, PassThrough{}, PassThrough{}, PassThrough{});
+        if(kbatch > 1)
+        {
+            ggemm_instance.SetKBatchSize(argument, kbatch);
+        }
+
+        return ggemm_instance.IsSupportedArgument(argument);
+    }
+
+    float Run(const std::vector<int>& Ms,
+              const std::vector<int>& Ns,
+              const std::vector<int>& Ks,
+              const std::vector<int>& StrideAs,
+              const std::vector<int>& StrideBs,
+              const std::vector<int>& StrideCs,
+              int kbatch = 1) const
+    {
+        std::size_t n_groups = Ms.size();
+        EXPECT_TRUE(Ns.size() == n_groups && Ks.size() == n_groups && StrideAs.size() == n_groups &&
+                    StrideBs.size() == n_groups && StrideCs.size() == n_groups)
+            << "The number of groups is not consistent!";
+
+        std::vector<tensor_operation::device::GemmDesc> gemm_descs;
+
+        for(std::size_t i = 0; i < n_groups; ++i)
+        {
+            gemm_descs.push_back(tensor_operation::device::GemmDesc{
+                Ms[i], Ns[i], Ks[i], StrideAs[i], StrideBs[i], StrideCs[i], {}});
+        }
+
+        std::vector<const void*> p_As(n_groups, nullptr);
+        std::vector<const void*> p_Bs(n_groups, nullptr);
+        std::vector<void*> p_Cs(n_groups, nullptr);
+        auto p_Ds = std::vector<std::array<const void*, 0>>{};
+
+        auto ggemm_instance = DeviceGroupedGemmSplitKInstance{};
+        auto argument       = ggemm_instance.MakeArgument(
+            p_As, p_Bs, p_Ds, p_Cs, gemm_descs, PassThrough{}, PassThrough{}, PassThrough{});
+        if(kbatch > 1)
+        {
+            ggemm_instance.SetKBatchSize(argument, kbatch);
+        }
+
+        EXPECT_TRUE(ggemm_instance.IsSupportedArgument(argument));
+        auto invoker = ggemm_instance.MakeInvoker();
+        DeviceMem gemm_desc_workspace(ggemm_instance.GetWorkSpaceSize(&argument));
+        ggemm_instance.SetWorkSpacePointer(&argument, gemm_desc_workspace.GetDeviceBuffer());
+        return invoker.Run(argument, StreamConfig{nullptr, false});
+    }
+};
+
+} // namespace test
+} // namespace ck