Files
composable_kernel/tile_engine/ops/gemm/gemm_host_api.hpp
Khushbu Agarwal b85b103194 [New] Build up the feature of CK Tile GEMM CodeGen (#1994)
* New branch for codegen changes

* Fix verify function for int4

* pk_int4 codegen

* Update to review comments

* Remove codegen directory and rename filenames

* Remove extra files; clean up CMake file

* New branch for codegen changes

* Fix verify function for int4

* pk_int4 codegen

* Update to review comments

* Remove codegen directory and rename filenames

* Remove extra files; clean up CMake file

* code changes for single instance

* config file rename, added few more combinations in json file

* Fix cmake file

* Addressing review comments

* Reverting files changed by merge to develop

---------

Co-authored-by: ThomasNing <thomas.ning@amd.com>

[ROCm/composable_kernel commit: fed0709121]
2025-04-03 11:54:12 -07:00

288 lines
10 KiB
C++

#include <hip/hip_runtime.h>
#include <cstring>
#include <iostream>
#include <sstream>
#include <string>
#include <tuple>
#include "ck_tile/ops/gemm.hpp"
#pragma once
template <typename T>
struct DataTypeTraits;
template <>
struct DataTypeTraits<float>
{
static constexpr const char* name = "fp32";
};
template <>
struct DataTypeTraits<double>
{
static constexpr const char* name = "fp64";
};
template <>
struct DataTypeTraits<ck_tile::half_t>
{
static constexpr const char* name = "fp16";
};
template <>
struct DataTypeTraits<ck_tile::bf16_t>
{
static constexpr const char* name = "bf16";
};
template <>
struct DataTypeTraits<ck_tile::fp8_t>
{
static constexpr const char* name = "fp8";
};
template <>
struct DataTypeTraits<ck_tile::bf8_t>
{
static constexpr const char* name = "bf8";
};
template <>
struct DataTypeTraits<ck_tile::pk_int4_t>
{
static constexpr const char* name = "pk_int4_t";
};
struct KernelTraits
{
std::string pipeline;
std::string scheduler;
std::string epilogue;
bool kPadM;
bool kPadN;
bool kPadK;
};
template <typename Layout>
static constexpr inline auto is_row_major(Layout layout_)
{
return ck_tile::bool_constant<std::is_same_v<ck_tile::remove_cvref_t<decltype(layout_)>,
ck_tile::tensor_layout::gemm::RowMajor>>{};
}
template <typename ADataType, typename BDataType, typename AccDataType, typename CDataType>
auto calculate_rtol_atol(const ck_tile::index_t K,
const ck_tile::index_t kbatch,
const float max_accumulated_value)
{
using ComputeType =
std::conditional_t<sizeof(ADataType) < sizeof(BDataType), ADataType, BDataType>;
// Calculate thresholds
const auto rtol = ck_tile::get_relative_threshold<ComputeType, CDataType, AccDataType>(
ck_tile::integer_divide_ceil(K, kbatch));
const auto atol = ck_tile::get_absolute_threshold<ComputeType, CDataType, AccDataType>(
max_accumulated_value / kbatch, ck_tile::integer_divide_ceil(K, kbatch));
// Calculate error due to split_k accumulation
const auto rtol_split_k =
ck_tile::get_relative_threshold<CDataType, CDataType, CDataType>(kbatch);
const auto atol_split_k = ck_tile::get_absolute_threshold<CDataType, CDataType, CDataType>(
max_accumulated_value, kbatch);
// Use higher threshold
return ck_tile::make_tuple(std::max(rtol, rtol_split_k), std::max(atol, atol_split_k));
}
inline auto create_args(int argc, char* argv[])
{
ck_tile::ArgParser arg_parser;
arg_parser.insert("m", "3840", "m dimension")
.insert("n", "4096", "n dimension")
.insert("k", "2048", "k dimension")
.insert("stride_a", "0", "Tensor A stride")
.insert("stride_b", "0", "Tensor B stride")
.insert("stride_c", "0", "Tensor C stride")
.insert("split_k", "1", "splitK value")
.insert("v", "2", "0. No validation, 1. Validation on CPU, 2. Validation on GPU")
.insert("warmup", "50", "number of iterations before benchmark the kernel")
.insert("repeat", "100", "number of iterations to benchmark the kernel")
.insert("timer", "gpu", "gpu:gpu timer, cpu:cpu timer")
.insert("init", "0", "0:random, 1:linear, 2:constant(1)")
.insert("pipeline", "compv3", "compv3, compv4, mem")
.insert("scheduler", "intrawave", "intrawave, interwave")
.insert("epilogue", "cshuffle", "cshuffle, default")
.insert("pad_m", "false", "true, false")
.insert("pad_n", "false", "true, false")
.insert("pad_k", "false", "true, false");
bool result = arg_parser.parse(argc, argv);
return std::make_tuple(result, arg_parser);
}
template <typename Tensor>
void permute_vectors_i4x4_b(Tensor& tensor)
{
const ck_tile::index_t K = tensor.get_length(0);
const ck_tile::index_t N = tensor.get_length(1);
// vector pk_i4x4 permute
for(int i = 0; i < N; i++)
{
for(int j = 0; j < K; j += 8)
{
int8_t input[8];
for(int k = 0; k < 4; k++)
{
int8_t i4x2 = tensor(j + k * 2, i).data;
input[k * 2 + 0] = (i4x2 >> 4) & 0xf;
input[k * 2 + 1] = (i4x2 >> 0) & 0xf;
}
// permute 01234567->20643175
{
int8_t hi = input[2];
int8_t lo = input[0];
int8_t i4x2 = (hi << 4) | lo;
tensor(j + 0, i) = i4x2;
}
{
int8_t hi = input[6];
int8_t lo = input[4];
int8_t i4x2 = (hi << 4) | lo;
tensor(j + 2, i) = i4x2;
}
{
int8_t hi = input[3];
int8_t lo = input[1];
int8_t i4x2 = (hi << 4) | lo;
tensor(j + 4, i) = i4x2;
}
{
int8_t hi = input[7];
int8_t lo = input[5];
int8_t i4x2 = (hi << 4) | lo;
tensor(j + 6, i) = i4x2;
}
}
}
}
// verification code
template <typename ADataType,
typename BDataType,
typename AccDataType,
typename CDataType,
typename ALayout,
typename BLayout,
typename CLayout>
bool gemm_verify(int verify,
ck_tile::HostTensor<ADataType>& a_m_k,
ck_tile::HostTensor<BDataType>& b_k_n,
ck_tile::HostTensor<CDataType>& c_m_n_dev_result,
ck_tile::DeviceMem& a_m_k_dev_buf,
ck_tile::DeviceMem& b_k_n_dev_buf,
ck_tile::index_t M,
ck_tile::index_t N,
ck_tile::index_t K,
ck_tile::index_t stride_A,
ck_tile::index_t stride_B,
ck_tile::index_t stride_C,
ck_tile::index_t kbatch)
{
bool pass = true;
if(verify == 1)
{
ck_tile::HostTensor<CDataType> c_m_n_host_ref(
ck_tile::host_tensor_descriptor(M, N, stride_C, is_row_major(CLayout{})));
c_m_n_host_ref.SetZero();
ck_tile::reference_gemm<ADataType, BDataType, AccDataType, CDataType>(
a_m_k, b_k_n, c_m_n_host_ref);
const float max_accumulated_value =
*std::max_element(c_m_n_host_ref.mData.begin(), c_m_n_host_ref.mData.end());
const auto rtol_atol = calculate_rtol_atol<ADataType, BDataType, AccDataType, CDataType>(
K, kbatch, max_accumulated_value);
pass = ck_tile::check_err(c_m_n_dev_result,
c_m_n_host_ref,
"Error: Incorrect results!",
rtol_atol.at(ck_tile::number<0>{}),
rtol_atol.at(ck_tile::number<1>{}));
std::cout << "Relative error threshold: " << rtol_atol.at(ck_tile::number<0>{})
<< " Absolute error threshold: " << rtol_atol.at(ck_tile::number<1>{})
<< std::endl;
std::cout << "The CPU verification result is:" << (pass ? "correct" : "fail") << std::endl;
}
else if(verify == 2)
{
if constexpr(std::is_same_v<BDataType, ck_tile::pk_int4_t>)
{
// Restore input for B for gpu reference
b_k_n_dev_buf.ToDevice(b_k_n.data());
}
ck_tile::HostTensor<CDataType> c_m_n_gpu_ref(
ck_tile::host_tensor_descriptor(M, N, stride_C, is_row_major(CLayout{})));
ck_tile::DeviceMem c_m_n_gpu_buf_ref(c_m_n_gpu_ref.get_element_space_size_in_bytes());
c_m_n_gpu_ref.SetZero();
c_m_n_gpu_buf_ref.SetZero();
ADataType* d_A;
BDataType* d_B;
CDataType* d_C;
ck_tile::hip_check_error(hipMalloc(&d_A, a_m_k.get_element_space_size_in_bytes()));
ck_tile::hip_check_error(hipMalloc(&d_B, b_k_n.get_element_space_size_in_bytes()));
ck_tile::hip_check_error(
hipMalloc(&d_C, c_m_n_dev_result.get_element_space_size_in_bytes()));
ck_tile::hip_check_error(hipMemcpy(d_A,
a_m_k_dev_buf.GetDeviceBuffer(),
a_m_k.get_element_space_size_in_bytes(),
hipMemcpyHostToDevice));
ck_tile::hip_check_error(hipMemcpy(d_B,
b_k_n_dev_buf.GetDeviceBuffer(),
b_k_n.get_element_space_size_in_bytes(),
hipMemcpyHostToDevice));
ck_tile::reference_gemm_gpu<ADataType,
BDataType,
AccDataType,
CDataType,
ALayout,
BLayout,
CLayout>(d_A, d_B, d_C, M, N, K, stride_A, stride_B, stride_C);
ck_tile::hip_check_error(hipMemcpy(c_m_n_gpu_buf_ref.GetDeviceBuffer(),
d_C,
c_m_n_dev_result.get_element_space_size_in_bytes(),
hipMemcpyDeviceToHost));
ck_tile::hip_check_error(hipFree(d_A));
ck_tile::hip_check_error(hipFree(d_B));
ck_tile::hip_check_error(hipFree(d_C));
c_m_n_gpu_buf_ref.FromDevice(c_m_n_gpu_ref.data());
const float max_accumulated_value =
*std::max_element(c_m_n_gpu_ref.mData.begin(), c_m_n_gpu_ref.mData.end());
const auto rtol_atol = calculate_rtol_atol<ADataType, BDataType, AccDataType, CDataType>(
K, kbatch, max_accumulated_value);
pass = ck_tile::check_err(c_m_n_dev_result,
c_m_n_gpu_ref,
"Error: Incorrect results!",
rtol_atol.at(ck_tile::number<0>{}),
rtol_atol.at(ck_tile::number<1>{}));
std::cout << "Relative error threshold: " << rtol_atol.at(ck_tile::number<0>{})
<< " Absolute error threshold: " << rtol_atol.at(ck_tile::number<1>{})
<< std::endl;
std::cout << "The GPU verification result is: " << (pass ? "correct" : "fail") << std::endl;
}
return pass;
}