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paddlepaddle--paddle/paddle/phi/kernels/impl/fake_quantize_kernel_impl.h
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// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "paddle/phi/kernels/fake_quantize_kernel.h"
#include "paddle/phi/kernels/funcs/fake_quantize_functor.h"
namespace phi {
template <typename T, typename Context>
void FakeQuantizeRangeAbsMaxKernel(const Context &dev_ctx,
const DenseTensor &x,
const DenseTensor &in_scale,
const optional<DenseTensor> &iter,
int window_size,
int bit_length,
bool is_test,
int round_type,
DenseTensor *out,
DenseTensor *out_scale,
DenseTensor *out_scales) {
dev_ctx.template Alloc<T>(out);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
// testing
if (is_test) {
funcs::ClipAndFakeQuantFunctor<Context, T>()(
dev_ctx, x, in_scale, bin_cnt, round_type, out);
return;
}
// training
dev_ctx.template Alloc<T>(out_scale);
DenseTensor cur_scale;
cur_scale.Resize({1});
T *cur_scale_data = dev_ctx.template Alloc<T>(&cur_scale);
funcs::FindAbsMaxFunctor<Context, T>()(
dev_ctx, x.data<T>(), x.numel(), cur_scale_data);
funcs::FindRangeAbsMaxFunctor<Context, T>()(dev_ctx,
cur_scale,
in_scale,
iter.get(),
window_size,
out_scales,
out_scale);
funcs::ClipAndFakeQuantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, out);
}
template <typename T, typename Context>
void FakeQuantizeAbsMaxKernel(const Context &dev_ctx,
const DenseTensor &x,
int bit_length,
int round_type,
DenseTensor *out,
DenseTensor *out_scale) {
T *out_s = dev_ctx.template Alloc<T>(out_scale);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
const T *in_data = x.data<T>();
funcs::FindAbsMaxFunctor<Context, T> find_abs_max_functor;
find_abs_max_functor(dev_ctx, in_data, x.numel(), out_s);
funcs::ClipAndFakeQuantFunctor<Context, T> clip_and_fake_quant_functor;
clip_and_fake_quant_functor(dev_ctx, x, *out_scale, bin_cnt, round_type, out);
}
template <typename T, typename Context>
void FakeQuantOrWithDequantMovingAverageAbsMaxKernel(
const Context &dev_ctx,
const DenseTensor &x,
const DenseTensor &in_scale,
const optional<DenseTensor> &in_accum,
const optional<DenseTensor> &in_state,
float moving_rate,
int bit_length,
bool is_test,
int round_type,
DenseTensor *out,
DenseTensor *out_scale,
DenseTensor *out_state,
DenseTensor *out_accum) {
int bin_cnt = std::pow(2, bit_length - 1) - 1;
// testing
if (is_test) {
funcs::ClipAndFakeQuantFunctor<Context, T>()(
dev_ctx, x, in_scale, bin_cnt, round_type, out);
return;
}
// training
DenseTensor tmp_scale;
tmp_scale.Resize(common::make_dim(1));
T *cur_scale_data = dev_ctx.template Alloc<T>(&tmp_scale);
funcs::FindAbsMaxFunctor<Context, T>()(
dev_ctx, x.data<T>(), x.numel(), cur_scale_data);
funcs::FindMovingAverageAbsMaxFunctor<Context, T>()(dev_ctx,
in_accum.get(),
in_state.get(),
cur_scale_data,
moving_rate,
out_state,
out_accum,
out_scale);
funcs::ClipAndFakeQuantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, out);
}
template <typename T, typename Context>
void FakeChannelWiseQuantizeAbsMaxKernel(const Context &dev_ctx,
const DenseTensor &x,
int bit_length,
int round_type,
int quant_axis,
bool is_test,
DenseTensor *out,
DenseTensor *out_scale) {
dev_ctx.template Alloc<T>(out);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
if (!is_test) {
T *out_scale_data = dev_ctx.template Alloc<T>(out_scale);
funcs::FindChannelAbsMaxFunctor<Context, T>()(
dev_ctx, x, quant_axis, out_scale_data);
}
funcs::ChannelClipAndFakeQuantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, quant_axis, out);
}
template <typename T, typename Context>
void FakeChannelWiseQuantizeDequantizeAbsMaxKernel(const Context &dev_ctx,
const DenseTensor &x,
int bit_length,
int round_type,
int quant_axis,
DenseTensor *out,
DenseTensor *out_scale) {
T *out_scale_data = dev_ctx.template Alloc<T>(out_scale);
dev_ctx.template Alloc<T>(out);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
funcs::FindChannelAbsMaxFunctor<Context, T>()(
dev_ctx, x, quant_axis, out_scale_data);
funcs::ChannelClipFakeQuantDequantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, quant_axis, out);
}
template <typename T, typename Context>
void FakeQuantizeDequantizeMovingAverageAbsMaxKernel(
const Context &dev_ctx,
const DenseTensor &x,
const DenseTensor &in_scale,
const optional<DenseTensor> &in_accum,
const optional<DenseTensor> &in_state,
float moving_rate,
int bit_length,
bool is_test,
int round_type,
DenseTensor *out,
DenseTensor *out_scale,
DenseTensor *out_state,
DenseTensor *out_accum) {
dev_ctx.template Alloc<T>(out);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
// testing
if (is_test) {
funcs::ClipAndFakeQuantDequantFunctor<Context, T>()(
dev_ctx, x, in_scale, bin_cnt, round_type, out);
return;
}
// training
DenseTensor tmp_scale;
tmp_scale.Resize(common::make_dim(1));
T *cur_scale_data = dev_ctx.template Alloc<T>(&tmp_scale);
funcs::FindAbsMaxFunctor<Context, T>()(
dev_ctx, x.data<T>(), x.numel(), cur_scale_data);
dev_ctx.template Alloc<T>(out_state);
dev_ctx.template Alloc<T>(out_accum);
dev_ctx.template Alloc<T>(out_scale);
funcs::FindMovingAverageAbsMaxFunctor<Context, T>()(dev_ctx,
in_accum.get(),
in_state.get(),
cur_scale_data,
moving_rate,
out_state,
out_accum,
out_scale);
funcs::ClipAndFakeQuantDequantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, out);
}
template <typename T, typename Context>
void FakeQuantizeDequantizeAbsMaxKernel(const Context &dev_ctx,
const DenseTensor &x,
int bit_length,
int round_type,
DenseTensor *out,
DenseTensor *out_scale) {
T *out_s = dev_ctx.template Alloc<T>(out_scale);
int bin_cnt = std::pow(2, bit_length - 1) - 1;
const T *in_data = x.data<T>();
funcs::FindAbsMaxFunctor<Context, T>()(dev_ctx, in_data, x.numel(), out_s);
funcs::ClipAndFakeQuantDequantFunctor<Context, T>()(
dev_ctx, x, *out_scale, bin_cnt, round_type, out);
}
} // namespace phi