wehub-resource-sync
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/phi/kernels/as_strided_kernel.h"
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#include "paddle/common/flags.h"
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#include "paddle/phi/backends/all_context.h"
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#include "paddle/phi/core/kernel_registry.h"
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COMMON_DECLARE_bool(use_stride_kernel);
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namespace phi {
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void ValidateZeroSizeTensorShape(const std::vector<int64_t>& dims,
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const std::vector<int64_t>& strides,
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const DenseTensor& input) {
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if (input.numel() != 0) {
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return;
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}
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PADDLE_ENFORCE_EQ(dims.size(),
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strides.size(),
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common::errors::InvalidArgument(
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"The size of dims and strides should be equal."));
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for (size_t i = 0; i < dims.size(); i++) {
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if (dims[i] == 0) {
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return;
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}
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}
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PADDLE_THROW(common::errors::InvalidArgument(
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"When input is zero-size tensor, the shape attribute must also be "
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"zero-size."));
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}
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template <typename Context>
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void AsStridedKernel(const Context& dev_ctx,
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const DenseTensor& input,
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const std::vector<int64_t>& dims,
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const std::vector<int64_t>& stride,
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int64_t offset,
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DenseTensor* out) {
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if (!FLAGS_use_stride_kernel) {
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PADDLE_THROW(common::errors::Fatal(
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"FLAGS_use_stride_kernel is closed. Strided kernel "
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"be called, something wrong has happened!"));
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}
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auto meta = out->meta();
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meta.dims = DDim(dims.data(), static_cast<int>(dims.size()));
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meta.strides = DDim(stride.data(), static_cast<int>(stride.size()));
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meta.offset = offset;
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ValidateZeroSizeTensorShape(dims, stride, input);
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PADDLE_ENFORCE_GE(
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offset,
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0,
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common::errors::InvalidArgument(
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"The offset must be non-negative, but got %d.", offset));
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out->set_meta(meta);
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out->ResetHolder(input.Holder());
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out->ShareInplaceVersionCounterWith(input);
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}
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} // namespace phi
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PD_REGISTER_KERNEL_FOR_ALL_BACKEND_DTYPE(as_strided,
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STRIDED,
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phi::AsStridedKernel) {}
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