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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/device/gemm.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.h"

#if defined(CUTLASS_ARCH_MMA_SM80_SUPPORTED)
/////////////////////////////////////////////////////////////////////////////////////////////////

TEST(SM80_Device_Gemm_f64n_f64t_f64t_tensor_op_f64, 32x32x16_16x16x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    cutlass::layout::ColumnMajor,
    double,
    cutlass::layout::RowMajor,
    ElementOutput,
    cutlass::layout::RowMajor,
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<32, 32, 16>,
    cutlass::gemm::GemmShape<16, 16, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    4
  >;

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

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

TEST(SM80_Device_Gemm_f64n_f64t_f64t_tensor_op_f64, 64x64x16_32x32x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    cutlass::layout::ColumnMajor,
    double,
    cutlass::layout::RowMajor,
    ElementOutput,
    cutlass::layout::RowMajor,
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<64, 64, 16>,
    cutlass::gemm::GemmShape<32, 32, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    4
  >;

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

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

TEST(SM80_Device_Gemm_f64n_f64t_f64t_tensor_op_f64, 128x64x16_64x32x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    cutlass::layout::ColumnMajor,
    double,
    cutlass::layout::RowMajor,
    ElementOutput,
    cutlass::layout::RowMajor,
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<128, 64, 16>,
    cutlass::gemm::GemmShape<64, 32, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    4
  >;

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

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

TEST(SM80_Device_Gemm_f64n_f64t_f64t_tensor_op_f64, 64x128x16_32x64x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    cutlass::layout::ColumnMajor,
    double,
    cutlass::layout::RowMajor,
    ElementOutput,
    cutlass::layout::RowMajor,
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<64, 128, 16>,
    cutlass::gemm::GemmShape<32, 64, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    3
  >;
  
  EXPECT_TRUE(test::gemm::device::TestAllGemm<Gemm>());
}

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

TEST(SM80_Device_Gemm_f64n_f64t_f64t_tensor_op_f64, 128x128x16_32x64x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    cutlass::layout::ColumnMajor,
    double,
    cutlass::layout::RowMajor,
    ElementOutput,
    cutlass::layout::RowMajor,
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<128, 128, 16>,
    cutlass::gemm::GemmShape<32, 64, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    3
  >;

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

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

TEST(SM80_Device_Gemm_f64an_f64at_f64at_tensor_op_f64, 128x128x16_32x64x16) {

  using ElementOutput = double;
  using ElementAccumulator = double;

  using LayoutA = cutlass::layout::AffineRank2ColumnMajor;
  using LayoutB = cutlass::layout::AffineRank2RowMajor;
  using LayoutC = cutlass::layout::AffineRankN<2>;

  using Gemm = cutlass::gemm::device::Gemm<
    double,
    LayoutA,
    double,
    LayoutB,
    ElementOutput,
    LayoutC, 
    ElementAccumulator,
    cutlass::arch::OpClassTensorOp,
    cutlass::arch::Sm80,
    cutlass::gemm::GemmShape<128, 128, 16>,
    cutlass::gemm::GemmShape<32, 64, 16>,
    cutlass::gemm::GemmShape<8, 8, 4>,
    cutlass::epilogue::thread::LinearCombination<
      ElementOutput,
      1,
      ElementAccumulator,
      ElementAccumulator
    >,
    cutlass::gemm::threadblock::GemmIdentityThreadblockSwizzle<>,
    3
  >;

  typename LayoutA::Stride::Index stride_factor_A[] = {3, 4};
  typename LayoutB::Stride::Index stride_factor_B[] = {5, 6};
  typename LayoutC::Stride::Index stride_factor_C[] = {7, 8};

  EXPECT_TRUE(test::gemm::device::TestAllGemm<Gemm>(stride_factor_A, stride_factor_B, stride_factor_C));
}

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

#endif // #if defined(CUTLASS_ARCH_MMA_SM80_SUPPORTED)
