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paddlepaddle--paddle/paddle/phi/kernels/cpu/elementwise_multiply_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/api/ext/dispatch.h"
#include "paddle/phi/backends/cpu/cpu_context.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/cpu/elementwise.h"
#include "paddle/phi/kernels/impl/elementwise_kernel_impl.h"
namespace phi {
template <typename T, typename Context>
void MultiplyKernel(const Context& dev_ctx,
const DenseTensor& x,
const DenseTensor& y,
DenseTensor* out) {
if (x.numel() == 0 || y.numel() == 0) {
dev_ctx.template Alloc<T>(out);
return;
}
dev_ctx.template Alloc<T>(out);
if (x.dims() == y.dims()) {
SameDimsElementwiseCompute<SameDimsMultiplyFunctor<CPUContext, T>>()(
dev_ctx, x, y, out);
} else {
auto x_dims = x.dims();
auto y_dims = y.dims();
if (x_dims.size() >= y_dims.size()) {
funcs::ElementwiseCompute<funcs::MultiplyFunctor<T>, T>(
dev_ctx, x, y, funcs::MultiplyFunctor<T>(), out, -1);
} else {
funcs::ElementwiseCompute<funcs::InverseMultiplyFunctor<T>, T>(
dev_ctx, x, y, funcs::InverseMultiplyFunctor<T>(), out, -1);
}
}
}
} // namespace phi
// NOTE(chenweihang): using bfloat16 will cause redefine with xpu bfloat16
// using bfloat16 = ::phi::bfloat16;
PD_REGISTER_KERNEL(multiply,
CPU,
ALL_LAYOUT,
phi::MultiplyKernel,
float,
double,
int,
int64_t,
bool,
phi::complex64,
phi::complex128,
phi::bfloat16) {}