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66 lines
2.4 KiB
66 lines
2.4 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 <string>
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#include "paddle/fluid/framework/lod_tensor_array.h"
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#include "paddle/fluid/framework/op_registry.h"
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#include "paddle/fluid/platform/device_context.h"
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namespace paddle {
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namespace operators {
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class ArrayOp : public framework::OperatorBase {
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public:
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ArrayOp(const std::string &type, const framework::VariableNameMap &inputs,
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const framework::VariableNameMap &outputs,
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const framework::AttributeMap &attrs)
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: OperatorBase(type, inputs, outputs, attrs) {}
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protected:
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size_t GetOffset(const framework::Scope &scope,
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const platform::Place &place) const {
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auto *i = scope.FindVar(Input("I"));
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PADDLE_ENFORCE_NOT_NULL(
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i, platform::errors::NotFound("Input(I) is not found."));
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auto &i_tensor = i->Get<framework::LoDTensor>();
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PADDLE_ENFORCE_EQ(i_tensor.numel(), 1,
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platform::errors::InvalidArgument(
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"Input(I) must have numel 1. "
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"But received %d, and it's shape is [%s].",
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i_tensor.numel(), i_tensor.dims()));
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// get device context from pool
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platform::DeviceContextPool &pool = platform::DeviceContextPool::Instance();
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auto &dev_ctx = *pool.Get(place);
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size_t offset;
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if (platform::is_gpu_place(i_tensor.place()) ||
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platform::is_xpu_place(i_tensor.place())) {
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// FIXME: Avoid copy from GPU to CPU
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framework::Tensor t;
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framework::TensorCopy(i_tensor, platform::CPUPlace(), dev_ctx, &t);
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dev_ctx.Wait();
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offset = static_cast<size_t>(*t.data<int64_t>());
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} else {
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offset = static_cast<size_t>(*i_tensor.data<int64_t>());
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}
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VLOG(10) << " Offset = " << offset;
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return offset;
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}
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};
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} // namespace operators
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} // namespace paddle
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