Files
2026-07-13 12:40:42 +08:00

109 lines
4.1 KiB
C++

// 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.
#include "paddle/phi/kernels/fake_quantize_grad_kernel.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/core/tensor_utils.h"
namespace phi {
template <typename T, typename Context>
void QuantizeGradFunc(const Context& dev_ctx,
const DenseTensor& dout,
DenseTensor* dx) {
PADDLE_ENFORCE_NOT_NULL(dx,
common::errors::PreconditionNotMet(
"The QuantizeGradFunc output dx is nullptr"));
// Initialize dx as same as d_out
dev_ctx.template Alloc<T>(dx);
phi::Copy(dev_ctx, dout, dev_ctx.GetPlace(), false, dx);
}
template <typename T, typename Context>
void FakeChannelWiseQuantizeDequantizeAbsMaxGradKernel(const Context& dev_ctx,
const DenseTensor& dout,
int bit_length,
int round_type,
int quant_axis,
DenseTensor* dx) {
QuantizeGradFunc<T, Context>(dev_ctx, dout, dx);
}
template <typename T, typename Context>
void FakeQuantizeDequantizeAbsMaxGradKernel(const Context& dev_ctx,
const DenseTensor& dout,
int bit_length,
int round_type,
DenseTensor* dx) {
QuantizeGradFunc<T, Context>(dev_ctx, dout, dx);
}
template <typename T, typename Context>
void FakeQuantizeDequantizeMovingAverageAbsMaxGradKernel(
const Context& dev_ctx,
const DenseTensor& dout,
float moving_rate,
int bit_length,
bool is_test,
int round_type,
DenseTensor* dx) {
QuantizeGradFunc<T, Context>(dev_ctx, dout, dx);
}
} // namespace phi
PD_REGISTER_KERNEL(fake_channel_wise_quantize_dequantize_abs_max_grad,
CPU,
ALL_LAYOUT,
phi::FakeChannelWiseQuantizeDequantizeAbsMaxGradKernel,
float) {
kernel->InputAt(0).SetBackend(phi::Backend::ALL_BACKEND);
}
PD_REGISTER_KERNEL(fake_quantize_dequantize_abs_max_grad,
CPU,
ALL_LAYOUT,
phi::FakeQuantizeDequantizeAbsMaxGradKernel,
float) {
kernel->InputAt(0).SetBackend(phi::Backend::ALL_BACKEND);
}
PD_REGISTER_KERNEL(fake_quantize_dequantize_moving_average_abs_max_grad,
CPU,
ALL_LAYOUT,
phi::FakeQuantizeDequantizeMovingAverageAbsMaxGradKernel,
float) {
kernel->InputAt(0).SetBackend(phi::Backend::ALL_BACKEND);
}
#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
PD_REGISTER_KERNEL(fake_channel_wise_quantize_dequantize_abs_max_grad,
GPU,
ALL_LAYOUT,
phi::FakeChannelWiseQuantizeDequantizeAbsMaxGradKernel,
float) {}
PD_REGISTER_KERNEL(fake_quantize_dequantize_abs_max_grad,
GPU,
ALL_LAYOUT,
phi::FakeQuantizeDequantizeAbsMaxGradKernel,
float,
phi::float16) {}
PD_REGISTER_KERNEL(fake_quantize_dequantize_moving_average_abs_max_grad,
GPU,
ALL_LAYOUT,
phi::FakeQuantizeDequantizeMovingAverageAbsMaxGradKernel,
float,
phi::float16) {}
#endif