wehub-resource-sync
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// 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/gather_nd_kernel.h"
|
|
|
|
#include "paddle/phi/backends/cpu/cpu_context.h"
|
|
#include "paddle/phi/core/kernel_registry.h"
|
|
#include "paddle/phi/kernels/funcs/gather.h"
|
|
#include "paddle/phi/kernels/tile_kernel.h"
|
|
|
|
namespace phi {
|
|
|
|
template <typename T, typename Context>
|
|
void GatherNdKernel(const Context &dev_ctx,
|
|
const DenseTensor &x,
|
|
const DenseTensor &index,
|
|
DenseTensor *out) {
|
|
dev_ctx.template Alloc<T>(out);
|
|
if (x.numel() == 0 || out->numel() == 0) return;
|
|
// The result dims is
|
|
// Index.shape[:-1] + X.shape[Index.shape[-1]:]
|
|
// If the last dimension of index is 0, set it to 1 and tile x.
|
|
auto index_dims = index.dims();
|
|
std::vector<int64_t> out_dims;
|
|
if (index_dims[index_dims.size() - 1] == 0) {
|
|
for (int i = 0; i < index_dims.size() - 1; ++i) {
|
|
out_dims.emplace_back(index_dims[i]);
|
|
}
|
|
for (int i = 0; i < x.dims().size(); ++i) {
|
|
out_dims.emplace_back(1);
|
|
}
|
|
TileKernel<T, Context>(dev_ctx, x, IntArray(out_dims), out);
|
|
return;
|
|
}
|
|
if (index.dims()[0] == 0 && index.numel() == 0) return;
|
|
auto index_type = index.dtype();
|
|
bool index_type_match =
|
|
index_type == DataType::INT32 || index_type == DataType::INT64;
|
|
PADDLE_ENFORCE_EQ(index_type_match,
|
|
true,
|
|
common::errors::InvalidArgument(
|
|
"Index holds the wrong type, it holds [%s],"
|
|
"but desires to be [%s] or [%s]",
|
|
index_type,
|
|
DataType::INT32,
|
|
DataType::INT64));
|
|
if (index_type == DataType::INT32) {
|
|
funcs::CPUGatherNd<T, int>(dev_ctx, x, index, out);
|
|
} else if (index_type == DataType::INT64) {
|
|
funcs::CPUGatherNd<T, int64_t>(dev_ctx, x, index, out);
|
|
}
|
|
}
|
|
|
|
} // namespace phi
|
|
|
|
PD_REGISTER_KERNEL(gather_nd,
|
|
CPU,
|
|
ALL_LAYOUT,
|
|
phi::GatherNdKernel,
|
|
bool,
|
|
float,
|
|
double,
|
|
int,
|
|
int8_t,
|
|
int64_t,
|
|
int16_t,
|
|
uint8_t,
|
|
phi::complex64,
|
|
phi::complex128) {}
|