wehub-resource-sync
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
// Copyright (c) 2018 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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#pragma once
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#include <dlpack/dlpack.h>
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#include "paddle/phi/core/dense_tensor.h"
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#include "paddle/utils/test_macros.h"
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namespace paddle {
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namespace framework {
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/*
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dlpack related code ref:
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https://github.com/pytorch/pytorch/blob/main/aten/src/ATen/DLConvertor.cpp
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and paddle/phi/api/lib/tensor_utils.cc
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*/
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using Deleter = std::function<void(void*)>;
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::DLDataType PhiDataTypeToDLDataType(phi::DataType dtype);
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phi::DataType DLDataTypeToPhiDataType(::DLDataType type);
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phi::Place DLDeviceToPlace(const ::DLDevice& device);
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::DLDevice PlaceToDLDevice(const phi::Place& place);
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TEST_API ::DLManagedTensor* ToDLPack(const phi::DenseTensor& src,
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uint64_t flags = 0);
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::DLManagedTensorVersioned* ToDLPackVersioned(const phi::DenseTensor& src,
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uint64_t flags = 0);
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void ToDLPackNonOwningImpl(const phi::DenseTensor& tensor, ::DLTensor* out);
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TEST_API DenseTensor FromDLPack(::DLManagedTensor* src);
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DenseTensor FromDLPackVersioned(::DLManagedTensorVersioned* src);
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// A traits to support both DLManagedTensor and DLManagedTensorVersioned
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template <typename T>
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struct DLPackTraits {};
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template <>
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struct DLPackTraits<DLManagedTensor> {
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inline static const char* capsule = "dltensor";
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inline static const char* used = "used_dltensor";
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inline static auto ToDLPack = framework::ToDLPack;
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inline static auto FromDLPack = framework::FromDLPack;
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};
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template <>
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struct DLPackTraits<DLManagedTensorVersioned> {
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inline static const char* capsule = "dltensor_versioned";
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inline static const char* used = "used_dltensor_versioned";
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inline static auto ToDLPack = framework::ToDLPackVersioned;
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inline static auto FromDLPack = framework::FromDLPackVersioned;
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};
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} // namespace framework
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} // namespace paddle
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