98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// This class describes collection of NDArrays
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//
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// @author raver119!gmail.com
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//
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#ifndef NDARRAY_LIST_H
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#define NDARRAY_LIST_H
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#include <string>
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#include <atomic>
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#include <unordered_map>
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#include <array/NDArray.h>
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#include <memory/Workspace.h>
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#include <system/dll.h>
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namespace sd {
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class ND4J_EXPORT NDArrayList {
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private:
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// workspace where chunks belong to
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//sd::memory::Workspace* _workspace = nullptr;
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sd::LaunchContext * _context = sd::LaunchContext ::defaultContext();
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// numeric and symbolic ids of this list
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std::pair<int, int> _id;
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std::string _name;
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sd::DataType _dtype;
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// stored chunks
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MAP_IMPL<int, sd::NDArray*> _chunks;
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// just a counter, for stored elements
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std::atomic<int> _elements;
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std::atomic<int> _counter;
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// reference shape
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std::vector<Nd4jLong> _shape;
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// unstack axis
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int _axis = 0;
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//
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bool _expandable = false;
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// maximum number of elements
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int _height = 0;
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public:
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NDArrayList(int height, bool expandable = false);
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~NDArrayList();
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sd::DataType dataType();
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NDArray* read(int idx);
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NDArray* readRaw(int idx);
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Nd4jStatus write(int idx, NDArray* array);
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NDArray* pick(std::initializer_list<int> indices);
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NDArray* pick(std::vector<int>& indices);
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bool isWritten(int index);
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std::vector<Nd4jLong>& shape();
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NDArray* stack();
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void unstack(NDArray* array, int axis);
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std::pair<int,int>& id();
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std::string& name();
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//sd::memory::Workspace* workspace();
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sd::LaunchContext * context();
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NDArrayList* clone();
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bool equals(NDArrayList& other);
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int elements();
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int height();
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int counter();
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};
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}
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#endif |