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/*
* Copyright (c) Facebook, Inc. and its affiliates.
* All rights reserved.
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
// This file defines common utilities used in code compiled with avx2/avx512
// flags.
#include <string>
namespace fbgemm {
enum class QuantizationGranularity {
TENSOR,
GROUP,
OUT_CHANNEL,
};
/**
* @brief A struct to represent a block of a matrix.
*/
struct block_type_t {
int row_start;
int row_size;
int col_start;
int col_size;
std::string toString() const {
std::string out = "";
out += "row start:" + std::to_string(row_start) + ", ";
out += "row size:" + std::to_string(row_size) + ", ";
out += "col start:" + std::to_string(col_start) + ", ";
out += "col size:" + std::to_string(col_size);
return out;
}
};
/**
* @brief A struct to represent all the requantization parameters.
*
* Please note that this is different from RequantizationParams in
* QuantUtilsAvx2.h as it combines all the parameters needed for various
* quantization granularities
*/
template<typename BIAS_TYPE = std::int32_t>
struct requantizationParams_t {
using BIAS_T = BIAS_TYPE;
std::int32_t A_zero_point;
const std::int32_t* B_zero_point;
std::int32_t C_zero_point;
const float* C_multiplier;
const std::int32_t* row_offsets;
const std::int32_t* col_offsets;
const BIAS_T* bias;
std::uint32_t ncols;
int groups;
const float* act_times_w_scale;
};
/**
* @brief A struct to represent all the parameters for requantizing for floats.
*/
struct requantizationForFloatParams_t {
std::int32_t A_zero_point;
const std::int32_t* B_zero_point;
float A_scale;
const float* B_scale;
const std::int32_t* row_offsets;
const std::int32_t* col_offsets;
const float* bias;
std::uint32_t ncols;
int groups;
};
} // namespace fbgemm
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