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

#include <iostream>

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

#include "cutlass/gemm/kernel/gemm_universal.h"
#include "cutlass/gemm/device/gemm_universal.h"
#include "cutlass/gemm/device/gemm_universal_adapter.h"

#include "cutlass/util/host_tensor.h"
#include "cutlass/util/reference/host/gemm.h"
#include "cutlass/util/reference/host/tensor_compare.h"
#include "cutlass/util/reference/host/tensor_copy.h"
#include "cutlass/util/reference/host/tensor_fill.h"
#include "cutlass/util/tensor_view_io.h"

#include "testbed_universal.h"

////////////////////////////////////////////////////////////////////////////////

#include "cutlass/epilogue/threadblock/epilogue_direct_store.h"
#include "cutlass/epilogue/threadblock/default_epilogue_direct_store.h"

////////////////////////////////////////////////////////////////////////////////

#if defined(CUTLASS_ARCH_MMA_SM80_SUPPORTED)

////////////////////////////////////////////////////////////////////////////////

TEST(SM80_Device_GemmUniversal_DirectStore_f16n_f16t_f32n_tensor_op_f32, 128x128x32_64x64x32) {

  using ElementOutput = float;
  using ElementAccumulator = float;

  // Define the GEMM kernel
  using GemmBase = cutlass::gemm::device::GemmUniversal<
      cutlass::half_t, 
      cutlass::layout::ColumnMajor, 
      cutlass::half_t,
      cutlass::layout::RowMajor, 
      ElementOutput, cutlass::layout::ColumnMajor,
      ElementAccumulator, cutlass::arch::OpClassTensorOp, cutlass::arch::Sm80,
      cutlass::gemm::GemmShape<128, 128, 32>,
      cutlass::gemm::GemmShape<64, 64, 32>, 
      cutlass::gemm::GemmShape<16, 8, 16>,
      cutlass::epilogue::thread::LinearCombination<
          ElementOutput, 
          4,                            // This is the vector size of the epilogue.
          ElementAccumulator, 
          ElementAccumulator>,
      cutlass::gemm::threadblock::GemmBatchedIdentityThreadblockSwizzle, 
    3,
    8,
    8
  >;

  // Define the direct store epilogue
  using EpilogueDirectStore = typename cutlass::epilogue::threadblock::DefaultEpilogueDirectStore<
    typename GemmBase::GemmKernel::Epilogue
  >::Epilogue;

  // Define a new kernel
  using Kernel = cutlass::gemm::kernel::GemmUniversal<
    typename GemmBase::GemmKernel::Mma,
    EpilogueDirectStore,
    typename GemmBase::GemmKernel::ThreadblockSwizzle
  >;

  // Define the adaptor
  using Gemm = cutlass::gemm::device::GemmUniversalAdapter<Kernel>;

  EXPECT_TRUE(test::gemm::device::TestAllGemmUniversal<Gemm>());
}

////////////////////////////////////////////////////////////////////////////////

#endif  // #if defined(CUTLASS_ARCH_MMA_SM80_SUPPORTED)

////////////////////////////////////////////////////////////////////////////////

