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paddlepaddle--paddle/paddle/phi/kernels/batch_norm_kernel.cc
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 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/batch_norm_kernel.h"
#include "paddle/phi/backends/gpu/gpu_dnn.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/empty_kernel.h"
namespace phi {
template <typename T, typename Context>
void BatchNormInferKernel(const Context& dev_ctx,
const DenseTensor& x,
const DenseTensor& mean,
const DenseTensor& variance,
const DenseTensor& scale,
const DenseTensor& bias,
float momentum,
float epsilon,
const std::string& data_layout,
DenseTensor* y,
DenseTensor* mean_out,
DenseTensor* variance_out) {
// Since saved_mean and saved_variance are used regardless of whether
// they are in test mode, temporary variables need to be created here
// to be compatible
auto saved_mean = EmptyLike<T, Context>(dev_ctx, *mean_out);
auto saved_variance = EmptyLike<T, Context>(dev_ctx, *variance_out);
BatchNormKernel<T, Context>(dev_ctx,
x,
mean,
variance,
scale,
bias,
/*is_test=*/true,
momentum,
epsilon,
data_layout,
/*use_global_stats=*/false,
/*trainable_statistics=*/false,
y,
mean_out,
variance_out,
&saved_mean,
&saved_variance,
/*reserve_space=*/nullptr);
}
} // namespace phi
PD_REGISTER_KERNEL(batch_norm_infer,
CPU,
ALL_LAYOUT,
phi::BatchNormInferKernel,
float,
double) {}
#ifdef PADDLE_WITH_CUDA
#if CUDNN_VERSION_MIN(8, 1, 0)
PD_REGISTER_KERNEL(batch_norm_infer,
GPU,
ALL_LAYOUT,
phi::BatchNormInferKernel,
float,
double,
phi::bfloat16,
phi::float16) {
if (kernel_key.dtype() == phi::DataType::FLOAT16 ||
kernel_key.dtype() == phi::DataType::BFLOAT16) {
kernel->OutputAt(1).SetDataType(phi::DataType::FLOAT32);
kernel->OutputAt(2).SetDataType(phi::DataType::FLOAT32);
}
}
#else
PD_REGISTER_KERNEL(batch_norm_infer,
GPU,
ALL_LAYOUT,
phi::BatchNormInferKernel,
float,
double,
phi::float16) {
if (kernel_key.dtype() == phi::DataType::FLOAT16) {
kernel->OutputAt(1).SetDataType(phi::DataType::FLOAT32);
kernel->OutputAt(2).SetDataType(phi::DataType::FLOAT32);
}
}
#endif
#endif
#ifdef PADDLE_WITH_HIP
PD_REGISTER_KERNEL(batch_norm_infer,
GPU,
ALL_LAYOUT,
phi::BatchNormInferKernel,
float,
phi::float16) {}
#endif
#ifdef PADDLE_WITH_XPU
PD_REGISTER_KERNEL(batch_norm_infer,
XPU,
ALL_LAYOUT,
phi::BatchNormInferKernel,
float,
phi::float16) {}
#endif