cavis/libnd4j/include/graph/execution/impl/LogicEnter.cpp

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2019-06-06 14:21:15 +02:00
/*******************************************************************************
* 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 raver119@gmail.com
//
#include <graph/execution/LogicEnter.h>
#include <Status.h>
namespace nd4j {
namespace graph {
Nd4jStatus LogicEnter::processNode(Graph *graph, Node *node) {
// this op replicates input variable into the frame. basically happens once for single loop.
// sure, if there's inner loop within outer loop, it'll be called once for outer loop and multiple times for inner loop
auto __variableSpace = graph->getVariableSpace();
auto __flowPath = __variableSpace->flowPath();
// basically, first non-null variable is our target
for (int e = 0; e < node->input()->size(); e++) {
auto inputAddr = node->input()->at(e);
if (__variableSpace->hasVariable(inputAddr)) {
auto var = __variableSpace->getVariable(inputAddr);
if (var->hasNDArray()) {
Variable *lvar = nullptr;
if (__variableSpace->hasVariable(node->id(), 0))
lvar = __variableSpace->getVariable(node->id(), 0);
else
lvar = new Variable(nullptr, node->getName()->c_str(), node->id(), 0);
auto array = var->getNDArray();
lvar->setNDArray(array);
lvar->markReadOnly(true);
break;
} else if (var->hasNDArrayList()) {
Variable *lvar = nullptr;
if (__variableSpace->hasVariable(node->id(), 0))
lvar = __variableSpace->getVariable(node->id(), 0);
else
lvar = new Variable(nullptr, node->getName()->c_str(), node->id(), 0);
auto list = var->getNDArrayList();
lvar->setNDArrayList(list);
lvar->markReadOnly(true);
break;
} else {
// FIXME: can we really have third case here?
continue;
}
}
}
return nd4j::Status::OK();
}
}
}