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/*! \file
    \brief Tests for device-wide Ptr-Array GEMM interface
*/

#include <iostream>

#include "cutlass/cutlass.h"
#include "cute/tensor.hpp"
#include "cute/atom/mma_atom.hpp"

#include "cutlass/numeric_types.h"

#include "cutlass/gemm/device/gemm_universal_adapter.h"
#include "cutlass/gemm/kernel/gemm_universal.hpp"
#include "cutlass/gemm/kernel/tile_scheduler.hpp"
#include "cutlass/gemm/collective/collective_builder.hpp"
#include "cutlass/epilogue/collective/collective_builder.hpp"
#include "cutlass/epilogue/collective/sm70_epilogue_vectorized.hpp"
#include "cutlass/epilogue/collective/default_epilogue.hpp"
#include "cutlass/epilogue/thread/linear_combination.h"

#include "../../common/cutlass_unit_test.h"

#include "gemm_testbed_3x_ptr_array.hpp"

#if defined(CUTLASS_ARCH_MMA_MODIFIABLE_TMA_SM90_SUPPORTED)

using namespace cute;

TEST(SM90_Device_Gemm_f16t_f16t_f32n_tensor_op_gmma_f32_group_gemm, 128x128x64_2x2x1) {

// A matrix configuration
using         ElementA    = cutlass::half_t;                                // Element type for A matrix operand
using         LayoutA     = cutlass::layout::RowMajor;                      // Layout type for A matrix operand
constexpr int AlignmentA  = 128 / cutlass::sizeof_bits<ElementA>::value;    // Memory access granularity/alignment of A matrix in units of elements (up to 16 bytes)

// B matrix configuration
using         ElementB    = cutlass::half_t;                                // Element type for B matrix operand
using         LayoutB     = cutlass::layout::ColumnMajor;                   // Layout type for B matrix operand
constexpr int AlignmentB  = 128 / cutlass::sizeof_bits<ElementB>::value;    // Memory access granularity/alignment of B matrix in units of elements (up to 16 bytes)

// C/D matrix configuration
using         ElementC    = cutlass::half_t;                                // Element type for C and D matrix operands
using         LayoutC     = cutlass::layout::ColumnMajor;                   // Layout type for C and D matrix operands
constexpr int AlignmentC  = 128 / cutlass::sizeof_bits<ElementC>::value;    // Memory access granularity/alignment of C matrix in units of elements (up to 16 bytes)

// Core kernel configurations
using ElementAccumulator  = float;                                           // Element type for internal accumulation
using ArchTag             = cutlass::arch::Sm90;                             // Tag indicating the minimum SM that supports the intended feature
using OperatorClass       = cutlass::arch::OpClassTensorOp;                  // Operator class tag
using TileShape           = Shape<_256,_128,_64>;                            // Threadblock-level tile size
using ClusterShape        = Shape<_2,_2,_1>;                                 // Shape of the threadblocks in a cluster
using StageCountType = cutlass::gemm::collective::StageCountAuto;            // Stage count maximized based on the tile size
using KernelSchedule   = cutlass::gemm::KernelPtrArrayTmaWarpSpecializedCooperative;   // Kernel to launch
using EpilogueSchedule = cutlass::epilogue::PtrArrayNoSmemWarpSpecialized;             // Epilogue to launch

using CollectiveEpilogue = typename cutlass::epilogue::collective::CollectiveBuilder<
    cutlass::arch::Sm90, cutlass::arch::OpClassTensorOp,
    TileShape, ClusterShape,
    cutlass::epilogue::collective::EpilogueTileAuto,
    ElementAccumulator, ElementAccumulator,
    ElementC, LayoutC *, AlignmentC,
    ElementC, LayoutC *, AlignmentC,
    EpilogueSchedule
  >::CollectiveOp;

using CollectiveMainloop = typename cutlass::gemm::collective::CollectiveBuilder<
    ArchTag, OperatorClass,
    ElementA, LayoutA *, AlignmentA,
    ElementB, LayoutB *, AlignmentB,
    ElementAccumulator,
    TileShape, ClusterShape,
    cutlass::gemm::collective::StageCountAutoCarveout<
      static_cast<int>(sizeof(typename CollectiveEpilogue::SharedStorage))>,
    KernelSchedule
  >::CollectiveOp;

using GemmKernel = cutlass::gemm::kernel::GemmUniversal<
    cutlass::gemm::GroupProblemShape<Shape<int,int,int>>,
    CollectiveMainloop,
    CollectiveEpilogue
>;

  using namespace test::gemm::device;
  using Gemm = cutlass::gemm::device::GemmUniversalAdapter<GemmKernel>;
  bool result = TestAll<Gemm>(1.0, 1.0);
  EXPECT_TRUE(result);
}

#endif // defined(CUTLASS_ARCH_MMA_MODIFIABLE_TMA_SM90_SUPPORTED)
