cavis/libnd4j/include/helpers/impl/OpArgsHolder.cpp

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/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author Yurii Shyrma (iuriish@yahoo.com), created on 15.07.2018
//
#include <OpArgsHolder.h>
namespace nd4j {
////////////////////////////////////////////////////////////////////////
// default constructor
OpArgsHolder::OpArgsHolder() {
_inArrs = std::vector<NDArray*>();
_tArgs = std::vector<double>();
_iArgs = std::vector<Nd4jLong>();
_bArgs = std::vector<bool>();
_isArrAlloc = std::vector<bool>();
_numInArrs = 0;
_numTArgs = 0;
_numIArgs = 0;
_numBArgs = 0;
}
////////////////////////////////////////////////////////////////////////
// copy constructor
OpArgsHolder::OpArgsHolder(const OpArgsHolder& other) {
throw std::runtime_error("OpArgsHolder::OpArgsHolder copy constructor: don't use me !");
}
////////////////////////////////////////////////////////////////////////
// constructor
OpArgsHolder::OpArgsHolder(const std::vector<NDArray*>& inArrs,
const std::vector<double>& tArgs,
const std::vector<Nd4jLong>& iArgs,
const std::vector<bool>& bArgs) {
_inArrs = inArrs;
_tArgs = tArgs;
_iArgs = iArgs;
_bArgs = bArgs;
_isArrAlloc = std::vector<bool>();
_numInArrs = _inArrs.size();
_numTArgs = _tArgs.size();
_numIArgs = _iArgs.size();
_numBArgs = _bArgs.size();
}
////////////////////////////////////////////////////////////////////////
// move constructor
OpArgsHolder::OpArgsHolder(OpArgsHolder&& other) noexcept: _inArrs(std::move(other._inArrs)),
_tArgs(std::move(other._tArgs)),
_iArgs(std::move(other._iArgs)),
_bArgs(std::move(other._bArgs)),
_isArrAlloc(std::move(other._isArrAlloc)) {
other._isArrAlloc = std::vector<bool>();
_numInArrs = _inArrs.size();
_numTArgs = _tArgs.size();
_numIArgs = _iArgs.size();
_numBArgs = _bArgs.size();
}
////////////////////////////////////////////////////////////////////////
// assignment operator
OpArgsHolder& OpArgsHolder::operator=(const OpArgsHolder& other) {
throw std::runtime_error("OpArgsHolder::OpArgsHolder assignment operator: don't use me !");
}
////////////////////////////////////////////////////////////////////////
// move assignment operator
OpArgsHolder& OpArgsHolder::operator=(OpArgsHolder&& other) noexcept {
if (this == &other)
return *this;
for (int i = 0; i < _isArrAlloc.size(); ++i) // delete arrays if necessary
if(_isArrAlloc[i])
delete _inArrs[i];
_inArrs = std::move(other._inArrs);
_tArgs = std::move(other._tArgs);
_iArgs = std::move(other._iArgs);
_bArgs = std::move(other._bArgs);
_isArrAlloc = std::move(other._isArrAlloc);
other._isArrAlloc = std::vector<bool>();
_numInArrs = _inArrs.size();
_numTArgs = _tArgs.size();
_numIArgs = _iArgs.size();
_numBArgs = _bArgs.size();
return *this;
}
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////////////////////////////////////////////////////////////////////////
OpArgsHolder OpArgsHolder::createArgsHolderForBP(const std::vector<NDArray*>& inGradArrs, const bool isInPlace) const {
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const int numInGradArrs = inGradArrs.size();
OpArgsHolder result(std::vector<NDArray*>(_numInArrs + numInGradArrs, nullptr), _tArgs, _iArgs);
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if(isInPlace)
result._isArrAlloc = std::vector<bool>(_numInArrs + numInGradArrs, false);
for (int i = 0; i < _numInArrs; ++i) {
if(isInPlace) {
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result._inArrs[i] = new NDArray(*_inArrs[i]); // make copy
result._isArrAlloc[i] = true;
}
else
result._inArrs[i] = _inArrs[i];
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}
// input gradients
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for (int i = 0; i < numInGradArrs; ++i)
result._inArrs[_numInArrs + i] = inGradArrs[i];
return result;
}
////////////////////////////////////////////////////////////////////////
// default destructor
OpArgsHolder::~OpArgsHolder() noexcept {
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for (int i = 0; i < _isArrAlloc.size(); ++i)
if(_isArrAlloc[i])
delete _inArrs[i];
}
}