145 lines
5.9 KiB
C++
145 lines
5.9 KiB
C++
/*******************************************************************************
|
|
* 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
|
|
******************************************************************************/
|
|
|
|
//
|
|
// Created by raver119 on 20.10.2017.
|
|
//
|
|
|
|
#include <graph/execution/LogicWhile.h>
|
|
#include <graph/execution/LogicReturn.h>
|
|
#include <graph/GraphExecutioner.h>
|
|
#include <graph/execution/LogicExecutor.h>
|
|
#include <graph/Status.h>
|
|
|
|
|
|
namespace sd {
|
|
namespace graph {
|
|
Nd4jStatus LogicWhile::processNode(Graph *graph, Node *node) {
|
|
auto __variableSpace = graph->getVariableSpace();
|
|
|
|
nd4j_debug("Starting on WHILE loop: [%i]\n", node->id());
|
|
|
|
// total number of inputs. 2 last inputs are scopes
|
|
int inputs = node->input()->size();
|
|
|
|
if (inputs < 3) {
|
|
nd4j_printf("While [%i]: loop should have at least 1 external variable announced\n", node->id());
|
|
return ND4J_STATUS_BAD_INPUT;
|
|
}
|
|
|
|
for (int e = 0; e < inputs - 2; e++) {
|
|
std::pair<int, int> pair(node->id(), e);
|
|
if (!__variableSpace->hasVariable(pair)) {
|
|
__variableSpace->putVariable(pair, new Variable(nullptr, nullptr, node->id(), e));
|
|
}
|
|
|
|
auto va = node->input()->at(e);
|
|
|
|
auto inputVar = __variableSpace->getVariable(va);
|
|
|
|
auto innerVar = __variableSpace->getVariable(pair);
|
|
if (innerVar->hasNDArray()) {
|
|
// TODO: ???
|
|
} else {
|
|
// FIXME: in some cases it's possible to have no NDArray
|
|
if (inputVar->hasNDArray())
|
|
innerVar->setNDArray(new NDArray(inputVar->getNDArray()->dup()));
|
|
}
|
|
}
|
|
|
|
int scopeConditionIndex = node->input()->at(inputs - 2).first;
|
|
int scopeBodyIndex = node->input()->at(inputs - 1).first;
|
|
|
|
nd4j_debug("While [%i]: got [%i] inputs\n", node->id(), node->input()->size());
|
|
|
|
// we're running condition nodes now
|
|
auto scope = graph->scopeById(scopeConditionIndex);
|
|
int breaker = 0;
|
|
while (true && breaker < 10000000) {
|
|
int lastNode = 0;
|
|
// we're running condition scope first
|
|
nd4j_debug("While [%i]: got [%i] ops in condition scope [%i]\n", node->id(), scope->nodes()->size(), scopeConditionIndex);
|
|
|
|
for (Node* v: *scope->nodes()) {
|
|
//v->getBlock()->updateVariables();
|
|
if (v->opType() == OpType_LOGIC) {
|
|
nd4j_debug("Falling back to logic\n","");
|
|
LogicExecutor::processNode(graph, v);
|
|
} else {
|
|
nd4j_debug("Op [<%s>]\n", v->getName()->c_str());
|
|
Nd4jStatus status = GraphExecutioner::executeFlatNode(graph, v, __variableSpace);
|
|
if (status != ND4J_STATUS_OK)
|
|
return status;
|
|
}
|
|
|
|
lastNode = v->id();
|
|
}
|
|
|
|
if (!__variableSpace->hasVariable(lastNode)) {
|
|
nd4j_printf("While [%i]: got no results out of conditional loop\n", node->id());
|
|
return ND4J_STATUS_KERNEL_FAILURE;
|
|
}
|
|
|
|
// now we should take result of the Scope run, and evaluate it
|
|
auto result = __variableSpace->getVariable(lastNode)->getNDArray();
|
|
|
|
if (Environment::getInstance()->isDebugAndVerbose())
|
|
result->printBuffer("Result of the last node:");
|
|
|
|
// if result evaluates to 0.0 - condition returned FALSE
|
|
if (result->e<int>(0) == 0)
|
|
break;
|
|
else {
|
|
auto scopeBody = graph->scopeById(scopeBodyIndex);
|
|
int lastNode = 0;
|
|
int e = 0;
|
|
nd4j_debug("While [%i] got [%i] ops in body scope [%i]\n", node->id(), scopeBody->nodes()->size(), scopeBodyIndex);
|
|
for (; e < scopeBody->nodes()->size() - 1; e++) {
|
|
Node* v = scopeBody->nodes()->at(e);
|
|
|
|
if (v->opType() == OpType_LOGIC) {
|
|
nd4j_debug("Falling back to logic\n","");
|
|
LogicExecutor::processNode(graph, v);
|
|
} else {
|
|
nd4j_debug("Op [<%s>]\n", v->getName()->c_str());
|
|
//v->getBlock()->updateVariables();
|
|
Nd4jStatus status = GraphExecutioner::executeFlatNode(graph, v, __variableSpace);
|
|
if (status != ND4J_STATUS_OK)
|
|
return status;
|
|
}
|
|
|
|
lastNode = v->id();
|
|
}
|
|
|
|
// now execute return statement
|
|
Node* ret = scopeBody->nodes()->at(e);
|
|
LogicReturn::processNode(graph, ret);
|
|
}
|
|
|
|
breaker++;
|
|
}
|
|
|
|
// if we've hit breaker limit - we should notify about that
|
|
if (breaker >= 10000000) {
|
|
nd4j_printf("While condition seems to be never ending, aborting...\n", breaker);
|
|
return ND4J_STATUS_KERNEL_FAILURE;
|
|
}
|
|
|
|
return sd::Status::OK();
|
|
}
|
|
}
|
|
}
|