Tensile-style block to C tile map (#239)

* fix build

* Revert "fix build"

This reverts commit d7310238

.

* post PR #235 merge fix

* amend

* adds tensile-stype c-tile map

* make it dynamic version

* add k-split flavor tile map

* apply tensile-style tile map to all xdl gridwise gemms

* remove dead code
Co-authored-by: Chao Liu <chao.liu2@amd.com>

include/ck/tensor_operation/gpu/device/device_grouped_gemm_xdl.hpp

@@ -346,7 +346,6 @@ struct DeviceGroupedGemmXdl
             return block_2_ctile_map_.CheckValidity(c_grid_desc_m_n);
         }
 
-        private:
         typename GridwiseGemm::DefaultBlock2CTileMap block_2_ctile_map_;
         ck::index_t BlockStart_;
     };
@@ -418,9 +417,8 @@ struct DeviceGroupedGemmXdl
                     DeviceGroupedGemmXdl::MakeCGridDescriptor_M_N(M, N, StrideC);
 
                 const index_t grid_size_grp =
-                    typename GroupedGemmBlock2CTileMap::UnderlyingBlock2CTileMap(
-                        c_grid_desc_m_n_, M01, N01)
-                        .CalculateGridSize(c_grid_desc_m_n_);
+                    GroupedGemmBlock2CTileMap(c_grid_desc_m_n_, M01, N01, 0)
+                        .block_2_ctile_map_.CalculateGridSize(c_grid_desc_m_n_);
 
                 const index_t BlockStart = grid_size_;
                 const index_t BlockEnd   = grid_size_ + grid_size_grp;

include/ck/tensor_operation/gpu/grid/block_to_ctile_map.hpp

@@ -8,6 +8,237 @@
 
 namespace ck {
 
+// Rows of column-vectors
+template <index_t MPerBlock,
+          index_t NPerBlock,
+          typename CGridDesc_M_N,
+          bool DeviceCTileIndexCheck = false>
+struct BlockToCTileMap_M00_N0_M01
+{
+    static constexpr auto I0 = Number<0>{};
+    static constexpr auto I1 = Number<1>{};
+    static constexpr auto I2 = Number<2>{};
+    static constexpr auto I3 = Number<3>{};
+
+    __host__ __device__ BlockToCTileMap_M00_N0_M01() = default;
+
+    __host__ __device__ BlockToCTileMap_M00_N0_M01(const CGridDesc_M_N& c_grid_desc_m_n,
+                                                   index_t M01 = 1)
+        : M01_(M01), underlying_map_(GetBlockToCTileMap(c_grid_desc_m_n, M01))
+    {
+    }
+
+    __host__ constexpr index_t CalculateGridSize(const CGridDesc_M_N& c_grid_desc_m_n) const
+    {
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I1), NPerBlock);
+
+        const auto M00 = math::integer_divide_ceil(M0, M01_);
+
+        const index_t grid_size = M00 * M01_ * N0;
+
+        return grid_size;
+    }
+
+    template <typename TopIdx>
+    __host__ __device__ constexpr auto CalculateBottomIndex(const TopIdx& idx_top) const
+    {
+        return underlying_map_.CalculateBottomIndex(idx_top);
+    }
+
+    template <typename CTileIdx, typename CTileDim>
+    __host__ __device__ bool ValidCTileIndex(const CTileIdx& c_tile_idx,
+                                             const CTileDim& c_tile_dim) const
+    {
+        if constexpr(DeviceCTileIndexCheck)
+            return DefaultValidCTileIndex(c_tile_idx, c_tile_dim);
+        else
+            return true;
+    }
+
+    __host__ bool CheckValidity(const CGridDesc_M_N& c_grid_desc_m_n) const
+    {
+        if constexpr(DeviceCTileIndexCheck)
+            return true; // validity check moved to kernel
+
+        const index_t M0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I0), MPerBlock);
+        if(M0 % M01_ == 0)
+        {
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+
+    private:
+    __host__ __device__ static constexpr auto
+    GetBlockToCTileMap(const CGridDesc_M_N& c_grid_desc_m_n, index_t M01)
+    {
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I1), NPerBlock);
+
+        const auto M00 = math::integer_divide_ceil(M0, M01);
+
+        const auto m00_n0_m01_to_m0_n0_block_cluster_adaptor = make_single_stage_tensor_adaptor(
+            make_tuple(make_insert_transform(1),
+                       make_unmerge_transform(make_tuple(M00, M01)),
+                       make_pass_through_transform(make_tuple(N0))),
+            make_tuple(Sequence<>{}, Sequence<0>{}, Sequence<1>{}),
+            make_tuple(Sequence<0>{}, Sequence<1, 3>{}, Sequence<2>{}));
+
+        const auto cblockid_to_m00_n0_m01_block_cluster_adaptor = make_single_stage_tensor_adaptor(
+            make_tuple(make_merge_transform(make_tuple(1, M00, N0, M01))),
+            make_tuple(Sequence<0, 1, 2, 3>{}),
+            make_tuple(Sequence<0>{}));
+
+        const auto cblockid_to_m0_n0_block_cluster_adaptor =
+            chain_tensor_adaptors(m00_n0_m01_to_m0_n0_block_cluster_adaptor,
+                                  cblockid_to_m00_n0_m01_block_cluster_adaptor);
+
+        return cblockid_to_m0_n0_block_cluster_adaptor;
+    }
+
+    index_t M01_;
+    using UnderlyingMap = decltype(GetBlockToCTileMap(CGridDesc_M_N{}, 1));
+    UnderlyingMap underlying_map_;
+};
+
+// Rows of column-vectors
+// This C-tile map dynamically adjusts M01 when C-tile index is out of range
+template <index_t MPerBlock, index_t NPerBlock, typename CGridDesc_M_N>
+struct BlockToCTileMap_M00_N0_M01Adapt
+{
+    static constexpr auto I0 = Number<0>{};
+    static constexpr auto I1 = Number<1>{};
+    static constexpr auto I2 = Number<2>{};
+    static constexpr auto I3 = Number<3>{};
+
+    __host__ __device__ BlockToCTileMap_M00_N0_M01Adapt() = default;
+
+    __host__ __device__ BlockToCTileMap_M00_N0_M01Adapt(const CGridDesc_M_N& c_grid_desc_m_n,
+                                                        index_t M01 = 8)
+        : M01_(M01), c_grid_desc_m_n_(c_grid_desc_m_n)
+    {
+    }
+
+    __host__ constexpr index_t CalculateGridSize(const CGridDesc_M_N& c_grid_desc_m_n) const
+    {
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I1), NPerBlock);
+
+        const index_t grid_size = M0 * N0;
+
+        return grid_size;
+    }
+
+    template <typename TopIdx>
+    __host__ __device__ constexpr auto CalculateBottomIndex(const TopIdx& idx_top) const
+    {
+        auto block_1d_id = idx_top[I0];
+
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n_.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n_.GetLength(I1), NPerBlock);
+
+        block_1d_id = block_1d_id % (M0 * N0); // swallow batch index
+
+        index_t idx_N0 = block_1d_id % N0;
+        index_t idx_M0 = block_1d_id / N0;
+
+        const auto M01_adapt = (idx_M0 < M0 - M0 % M01_) ? M01_ : M0 % M01_;
+
+        index_t idx_M00          = idx_M0 / M01_;
+        index_t idx_M01          = idx_M0 % M01_;
+        index_t idx_N0_M01_local = idx_N0 + idx_M01 * N0;
+
+        return make_tuple(idx_N0_M01_local % M01_adapt + idx_M00 * M01_,
+                          idx_N0_M01_local / M01_adapt);
+    }
+
+    template <typename CTileIdx, typename CTileDim>
+    __host__ __device__ bool ValidCTileIndex(const CTileIdx& /* c_tile_idx */,
+                                             const CTileDim& /* c_tile_dim */) const
+    {
+        return true; // always valid provided that user gets grid size from CalculateGridSize()
+    }
+
+    __host__ bool CheckValidity(const CGridDesc_M_N& /* c_grid_desc_m_n */) const { return true; }
+
+    private:
+    index_t M01_;
+    CGridDesc_M_N c_grid_desc_m_n_;
+};
+
+// 2D slices of column-vectors in 3D space
+// This C-tile map dynamically adjusts M01 when C-tile index is out of range
+template <index_t MPerBlock, index_t NPerBlock, typename CGridDesc_M_N>
+struct BlockToCTileMap_KSplit_M00_N0_M01Adapt
+{
+    static constexpr auto I0 = Number<0>{};
+    static constexpr auto I1 = Number<1>{};
+    static constexpr auto I2 = Number<2>{};
+    static constexpr auto I3 = Number<3>{};
+
+    __host__ __device__ BlockToCTileMap_KSplit_M00_N0_M01Adapt() = default;
+
+    __host__ __device__ BlockToCTileMap_KSplit_M00_N0_M01Adapt(const CGridDesc_M_N& c_grid_desc_m_n,
+                                                               index_t M01    = 8,
+                                                               index_t KSplit = 1)
+        : M01_(M01), KSplit_(KSplit), c_grid_desc_m_n_(c_grid_desc_m_n)
+    {
+    }
+
+    __host__ constexpr index_t CalculateGridSize(const CGridDesc_M_N& c_grid_desc_m_n) const
+    {
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n.GetLength(I1), NPerBlock);
+
+        const index_t grid_size = M0 * N0 * KSplit_;
+
+        return grid_size;
+    }
+
+    template <typename TopIdx>
+    __host__ __device__ constexpr auto CalculateBottomIndex(const TopIdx& idx_top) const
+    {
+        auto block_1d_id = idx_top[I0];
+
+        const auto M0 = math::integer_divide_ceil(c_grid_desc_m_n_.GetLength(I0), MPerBlock);
+        const auto N0 = math::integer_divide_ceil(c_grid_desc_m_n_.GetLength(I1), NPerBlock);
+
+        const index_t idx_ksplit = block_1d_id / (M0 * N0);
+        block_1d_id              = block_1d_id % (M0 * N0);
+
+        index_t idx_N0 = block_1d_id % N0;
+        index_t idx_M0 = block_1d_id / N0;
+
+        const auto M01_adapt = (idx_M0 < M0 - M0 % M01_) ? M01_ : M0 % M01_;
+
+        index_t idx_M00          = idx_M0 / M01_;
+        index_t idx_M01          = idx_M0 % M01_;
+        index_t idx_N0_M01_local = idx_N0 + idx_M01 * N0;
+
+        return make_tuple(idx_ksplit,
+                          idx_N0_M01_local % M01_adapt + idx_M00 * M01_,
+                          idx_N0_M01_local / M01_adapt);
+    }
+
+    template <typename CTileIdx, typename CTileDim>
+    __host__ __device__ bool ValidCTileIndex(const CTileIdx& /* c_tile_idx */,
+                                             const CTileDim& /* c_tile_dim */) const
+    {
+        return true; // always valid provided that user gets grid size from CalculateGridSize()
+    }
+
+    __host__ bool CheckValidity(const CGridDesc_M_N& /* c_grid_desc_m_n */) const { return true; }
+
+    private:
+    index_t M01_;
+    index_t KSplit_;
+    CGridDesc_M_N c_grid_desc_m_n_;
+};
+
 // Blocks of row-vectors
 template <index_t MPerBlock,
           index_t NPerBlock,

include/ck/tensor_operation/gpu/grid/gridwise_gemm_reduce_xdl_cshuffle_v1.hpp

@@ -306,7 +306,7 @@ struct GridwiseGemmReduce_k0mk1_k0nk1_mn_xdl_cshuffle_v1
     __host__ __device__ static constexpr auto
     MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
             c_grid_desc_m_n);
     }
 

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdl_cshuffle_v1.hpp

@@ -259,7 +259,7 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdl_cshuffle_v1
     __host__ __device__ static constexpr auto
     MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
             c_grid_desc_m_n);
     }
 

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r3.hpp

@@ -288,11 +288,11 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v2r3
     }
 
     // return block_id to C matrix tile idx (m0, n0) mapping
-    __host__ __device__ static constexpr auto
-    MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n, index_t M01, index_t N01)
+    __host__ __device__ static constexpr auto MakeDefaultBlock2CTileMap(
+        const CGridDesc_M_N& c_grid_desc_m_n, index_t /* M01 */, index_t /* N01 */)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
-            c_grid_desc_m_n, M01, N01);
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
+            c_grid_desc_m_n);
     }
 
     using CGridDesc_M0_N0_M1_N1_M2_M3_M4_N2 =

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4.hpp

@@ -265,10 +265,10 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4
 
     // return block_id to C matrix tile idx (m0, n0) mapping
     __host__ __device__ static constexpr auto MakeCBlockClusterAdaptor(
-        const CMNGridDesc& c_m_n_grid_desc, index_t M01, index_t N01, index_t KBatch)
+        const CMNGridDesc& c_m_n_grid_desc, index_t /* M01 */, index_t /* N01 */, index_t KBatch)
     {
-        return BlockToCTileMap_KSplit_M00_N00_M01_N01<MPerBlock, NPerBlock, CMNGridDesc>(
-            c_m_n_grid_desc, M01, N01, KBatch);
+        return BlockToCTileMap_KSplit_M00_N0_M01Adapt<MPerBlock, NPerBlock, CMNGridDesc>(
+            c_m_n_grid_desc, 8, KBatch);
     }
 
     using CM0N0M1N1M2M3M4N2GridDesc = decltype(MakeCM0N0M1N1M2M3M4N2GridDescriptor(CMNGridDesc{}));

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r4r2.hpp

@@ -239,10 +239,10 @@ struct GridwiseGemm_bk0mk1_bk0nk1_mn_xdlops_v2r4r2
 
     // return block_id to C matrix tile idx (m0, n0) mapping
     __host__ __device__ static constexpr auto MakeCBlockClusterAdaptor(
-        const CMNGridDesc& c_m_n_grid_desc, index_t M01, index_t N01, index_t KBatch)
+        const CMNGridDesc& c_m_n_grid_desc, index_t /* M01 */, index_t /* N01 */, index_t KBatch)
     {
-        return BlockToCTileMap_KSplit_M00_N00_M01_N01<MPerBlock, NPerBlock, CMNGridDesc>(
-            c_m_n_grid_desc, M01, N01, KBatch);
+        return BlockToCTileMap_KSplit_M00_N0_M01Adapt<MPerBlock, NPerBlock, CMNGridDesc>(
+            c_m_n_grid_desc, 8, KBatch);
     }
 
     __host__ __device__ static constexpr auto

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v3r1.hpp

@@ -300,11 +300,11 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v3r1
     }
 
     // return block_id to C matrix tile idx (m0, n0) mapping
-    __host__ __device__ static constexpr auto
-    MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n, index_t M01, index_t N01)
+    __host__ __device__ static constexpr auto MakeDefaultBlock2CTileMap(
+        const CGridDesc_M_N& c_grid_desc_m_n, index_t /* M01 */, index_t /* N01 */)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
-            c_grid_desc_m_n, M01, N01);
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
+            c_grid_desc_m_n);
     }
     using CGridDescriptor_MBlock_MXdlPerWave_MWaveMPerXdl_NBlock_NXdlPerWave_NWaveNPerXdl =
         remove_cvref_t<decltype(

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v3r2.hpp

@@ -309,11 +309,11 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v3r2
     }
 
     // return block_id to C matrix tile idx (m0, n0) mapping
-    __host__ __device__ static constexpr auto
-    MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n, index_t M01, index_t N01)
+    __host__ __device__ static constexpr auto MakeDefaultBlock2CTileMap(
+        const CGridDesc_M_N& c_grid_desc_m_n, index_t /* M01 */, index_t /* N01 */)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
-            c_grid_desc_m_n, M01, N01);
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
+            c_grid_desc_m_n);
     }
 
     using CGridDescriptor_MBlock_MXdlPerWave_MWaveMPerXdl_NBlock_NXdlPerWave_NWaveNPerXdl =

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v3r3.hpp

@@ -316,11 +316,11 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v3r3
     }
 
     // return block_id to C matrix tile idx (m0, n0) mapping
-    __host__ __device__ static constexpr auto
-    MakeDefaultBlock2CTileMap(const CGridDesc_M_N& c_grid_desc_m_n, index_t M01, index_t N01)
+    __host__ __device__ static constexpr auto MakeDefaultBlock2CTileMap(
+        const CGridDesc_M_N& c_grid_desc_m_n, index_t /* M01 */, index_t /* N01 */)
     {
-        return BlockToCTileMap_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
-            c_grid_desc_m_n, M01, N01);
+        return BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, CGridDesc_M_N>(
+            c_grid_desc_m_n);
     }
     using CGridDescriptor_MBlock_MXdlPerWave_MWaveMPerXdl_NBlock_NXdlPerWave_NWaveNPerXdl =
         remove_cvref_t<decltype(

test/block_to_ctile_map/test_block_to_ctile_map.cpp

@@ -8,6 +8,7 @@ using namespace ck;
 
 static auto I0 = Number<0>{};
 static auto I1 = Number<1>{};
+static auto I2 = Number<2>{};
 
 TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck1)
 {
@@ -20,7 +21,7 @@ TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck1
     const index_t M01       = 4;
     const index_t N01       = 4;
 
-    auto c_grid_desc_m_n = make_naive_tensor_descriptor(make_tuple(M, N), make_tuple(I1, I1));
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
 
     printf("(M, N, MPerBlock, NPerBlock, M01, N01) = (%d, %d, %d, %d, %d, %d)\n",
            M,
@@ -37,7 +38,7 @@ TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck1
     EXPECT_TRUE(tile_map.CalculateGridSize(c_grid_desc_m_n) == 16);
 
     // clang-format off
-    std::vector<std::vector<int>> expected = {
+    std::vector<std::vector<int>> expected_m0idx_n0idx_valid = {
         {0, 0, 1},
         {0, 1, 1},
         {0, 2, 1},
@@ -64,7 +65,7 @@ TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck1
         std::cout << ", valid = " << tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))
                   << std::endl;
         bool equal =
-            expected[i] ==
+            expected_m0idx_n0idx_valid[i] ==
             std::vector<int>{m0n0_idx[I0],
                              m0n0_idx[I1],
                              tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))};
@@ -78,12 +79,11 @@ TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck0
     const index_t N         = 384;
     const index_t MPerBlock = 128;
     const index_t NPerBlock = 128;
-    // const index_t MBlock    = M / MPerBlock;
-    // const index_t NBlock    = N / NPerBlock;
+
     const index_t M01 = 4;
     const index_t N01 = 4;
 
-    auto c_grid_desc_m_n = make_naive_tensor_descriptor(make_tuple(M, N), make_tuple(I1, I1));
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
 
     printf("(M, N, MPerBlock, NPerBlock, M01, N01) = (%d, %d, %d, %d, %d, %d)\n",
            M,
@@ -98,3 +98,221 @@ TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N00_M01_N01_DeviceCTileIndexCheck0
 
     EXPECT_TRUE(tile_map.CheckValidity(c_grid_desc_m_n) == false);
 }
+
+TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N0_M01_DeviceCTileIndexCheck1)
+{
+    const index_t M         = 384;
+    const index_t N         = 512;
+    const index_t MPerBlock = 128;
+    const index_t NPerBlock = 128;
+    const index_t MBlock    = M / MPerBlock;
+    const index_t NBlock    = N / NPerBlock;
+    const index_t M01       = 4;
+
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
+
+    printf("(M, N, MPerBlock, NPerBlock, M01) = (%d, %d, %d, %d, %d)\n",
+           M,
+           N,
+           MPerBlock,
+           NPerBlock,
+           M01);
+
+    BlockToCTileMap_M00_N0_M01<MPerBlock, NPerBlock, decltype(c_grid_desc_m_n), true> tile_map(
+        c_grid_desc_m_n, M01);
+
+    EXPECT_TRUE(tile_map.CheckValidity(c_grid_desc_m_n) == true);
+    EXPECT_TRUE(tile_map.CalculateGridSize(c_grid_desc_m_n) == 16);
+
+    // clang-format off
+    std::vector<std::vector<int>> expected_m0idx_n0idx_valid = {
+        {0, 0, 1},
+        {1, 0, 1},
+        {2, 0, 1},
+        {3, 0, 0},
+        {0, 1, 1},
+        {1, 1, 1},
+        {2, 1, 1},
+        {3, 1, 0},
+        {0, 2, 1},
+        {1, 2, 1},
+        {2, 2, 1},
+        {3, 2, 0},
+        {0, 3, 1},
+        {1, 3, 1},
+        {2, 3, 1},
+        {3, 3, 0}
+    };
+    // clang-format on
+
+    for(index_t i = 0; i < tile_map.CalculateGridSize(c_grid_desc_m_n); i++)
+    {
+        auto m0n0_idx = tile_map.CalculateBottomIndex(make_multi_index(i));
+        std::cout << "block_1d_id = " << i << ", m0, n0 = " << m0n0_idx[I0] << ", " << m0n0_idx[I1];
+        std::cout << ", valid = " << tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))
+                  << std::endl;
+        bool equal =
+            expected_m0idx_n0idx_valid[i] ==
+            std::vector<int>{m0n0_idx[I0],
+                             m0n0_idx[I1],
+                             tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))};
+        EXPECT_TRUE(equal);
+    }
+}
+
+TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N0_M01_DeviceCTileIndexCheck0)
+{
+    const index_t M         = 512;
+    const index_t N         = 384;
+    const index_t MPerBlock = 128;
+    const index_t NPerBlock = 128;
+
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
+
+    // clang-format off
+    std::vector<std::tuple<int, int, bool>> expected_m0_gridsize_validity = {
+        {5, 15, false},
+        {4, 12, true},
+        {3, 18, false},
+        {2, 12, true},
+        {1, 12, true}
+    };
+    // clang-format on
+
+    for(auto e : expected_m0_gridsize_validity)
+    {
+        const index_t M01 = std::get<0>(e);
+
+        printf("(M, N, MPerBlock, NPerBlock, M01) = (%d, %d, %d, %d, %d)\n",
+               M,
+               N,
+               MPerBlock,
+               NPerBlock,
+               M01);
+
+        BlockToCTileMap_M00_N0_M01<MPerBlock, NPerBlock, decltype(c_grid_desc_m_n), false> tile_map(
+            c_grid_desc_m_n, M01);
+
+        EXPECT_EQ(tile_map.CalculateGridSize(c_grid_desc_m_n), std::get<1>(e));
+        EXPECT_EQ(tile_map.CheckValidity(c_grid_desc_m_n), std::get<2>(e));
+    }
+}
+
+TEST(BlockToCTileMap, TestBlockToCTileMap_M00_N0_M01Adapt)
+{
+    const index_t M         = 768;
+    const index_t N         = 384;
+    const index_t MPerBlock = 128;
+    const index_t NPerBlock = 128;
+    const index_t MBlock    = M / MPerBlock;
+    const index_t NBlock    = N / NPerBlock;
+    constexpr index_t M01   = 4;
+
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
+
+    printf("(M, N, MPerBlock, NPerBlock, M01) = (%d, %d, %d, %d, %d)\n",
+           M,
+           N,
+           MPerBlock,
+           NPerBlock,
+           M01);
+
+    BlockToCTileMap_M00_N0_M01Adapt<MPerBlock, NPerBlock, decltype(c_grid_desc_m_n)> tile_map(
+        c_grid_desc_m_n, M01);
+
+    EXPECT_TRUE(tile_map.CheckValidity(c_grid_desc_m_n) == true);
+    EXPECT_TRUE(tile_map.CalculateGridSize(c_grid_desc_m_n) == 18);
+
+    // clang-format off
+    std::vector<std::vector<int>> expected_m0idx_n0idx_valid = {
+        {0, 0, 1},
+        {1, 0, 1},
+        {2, 0, 1},
+        {3, 0, 1},
+        {0, 1, 1},
+        {1, 1, 1},
+        {2, 1, 1},
+        {3, 1, 1},
+        {0, 2, 1},
+        {1, 2, 1},
+        {2, 2, 1},
+        {3, 2, 1},
+        {4, 0, 1},
+        {5, 0, 1},
+        {4, 1, 1},
+        {5, 1, 1},
+        {4, 2, 1},
+        {5, 2, 1},
+    };
+    // clang-format on
+
+    for(index_t i = 0; i < tile_map.CalculateGridSize(c_grid_desc_m_n); i++)
+    {
+        auto m0n0_idx = tile_map.CalculateBottomIndex(make_multi_index(i));
+        std::cout << "block_1d_id = " << i << ", m0, n0 = " << m0n0_idx[I0] << ", " << m0n0_idx[I1];
+        std::cout << ", valid = " << tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))
+                  << std::endl;
+        bool equal =
+            expected_m0idx_n0idx_valid[i] ==
+            std::vector<int>{m0n0_idx[I0],
+                             m0n0_idx[I1],
+                             tile_map.ValidCTileIndex(m0n0_idx, make_tuple(MBlock, NBlock))};
+        EXPECT_TRUE(equal);
+    }
+}
+
+TEST(BlockToCTileMap, TestBlockToCTileMap_KSplit_M00_N0_M01Adapt)
+{
+    const index_t M         = 768;
+    const index_t N         = 384;
+    const index_t MPerBlock = 128;
+    const index_t NPerBlock = 128;
+    const index_t MBlock    = M / MPerBlock;
+    const index_t NBlock    = N / NPerBlock;
+    constexpr index_t M01   = 4;
+    const index_t KSplit    = 3;
+
+    auto c_grid_desc_m_n = make_naive_tensor_descriptor_packed(make_tuple(M, N));
+
+    printf("(M, N, MPerBlock, NPerBlock, M01) = (%d, %d, %d, %d, %d)\n",
+           M,
+           N,
+           MPerBlock,
+           NPerBlock,
+           M01);
+
+    BlockToCTileMap_KSplit_M00_N0_M01Adapt<MPerBlock, NPerBlock, decltype(c_grid_desc_m_n)>
+        tile_map(c_grid_desc_m_n, M01, KSplit);
+
+    EXPECT_TRUE(tile_map.CheckValidity(c_grid_desc_m_n) == true);
+    EXPECT_TRUE(tile_map.CalculateGridSize(c_grid_desc_m_n) == 18 * KSplit);
+
+    std::vector<std::vector<int>> expected_ksplitidx_m0idx_n0idx_valid = {
+        {0, 0, 0, 1}, {0, 1, 0, 1}, {0, 2, 0, 1}, {0, 3, 0, 1}, {0, 0, 1, 1}, {0, 1, 1, 1},
+        {0, 2, 1, 1}, {0, 3, 1, 1}, {0, 0, 2, 1}, {0, 1, 2, 1}, {0, 2, 2, 1}, {0, 3, 2, 1},
+        {0, 4, 0, 1}, {0, 5, 0, 1}, {0, 4, 1, 1}, {0, 5, 1, 1}, {0, 4, 2, 1}, {0, 5, 2, 1},
+        {1, 0, 0, 1}, {1, 1, 0, 1}, {1, 2, 0, 1}, {1, 3, 0, 1}, {1, 0, 1, 1}, {1, 1, 1, 1},
+        {1, 2, 1, 1}, {1, 3, 1, 1}, {1, 0, 2, 1}, {1, 1, 2, 1}, {1, 2, 2, 1}, {1, 3, 2, 1},
+        {1, 4, 0, 1}, {1, 5, 0, 1}, {1, 4, 1, 1}, {1, 5, 1, 1}, {1, 4, 2, 1}, {1, 5, 2, 1},
+        {2, 0, 0, 1}, {2, 1, 0, 1}, {2, 2, 0, 1}, {2, 3, 0, 1}, {2, 0, 1, 1}, {2, 1, 1, 1},
+        {2, 2, 1, 1}, {2, 3, 1, 1}, {2, 0, 2, 1}, {2, 1, 2, 1}, {2, 2, 2, 1}, {2, 3, 2, 1},
+        {2, 4, 0, 1}, {2, 5, 0, 1}, {2, 4, 1, 1}, {2, 5, 1, 1}, {2, 4, 2, 1}, {2, 5, 2, 1},
+    };
+
+    for(index_t i = 0; i < tile_map.CalculateGridSize(c_grid_desc_m_n); i++)
+    {
+        auto ksplitm0n0_idx = tile_map.CalculateBottomIndex(make_multi_index(i));
+        std::cout << "block_1d_id = " << i << ", ksplit, m0, n0 = " << ksplitm0n0_idx[I0] << ", "
+                  << ksplitm0n0_idx[I1] << ", " << ksplitm0n0_idx[I2];
+        std::cout << ", valid = "
+                  << tile_map.ValidCTileIndex(ksplitm0n0_idx, make_tuple(MBlock, NBlock))
+                  << std::endl;
+        bool equal =
+            expected_ksplitidx_m0idx_n0idx_valid[i] ==
+            std::vector<int>{ksplitm0n0_idx[I0],
+                             ksplitm0n0_idx[I1],
+                             ksplitm0n0_idx[I2],
+                             tile_map.ValidCTileIndex(ksplitm0n0_idx, make_tuple(MBlock, NBlock))};
+        EXPECT_TRUE(equal);
+    }
+}