282 lines
8.6 KiB
C++
282 lines
8.6 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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// @author raver119@gmail.com
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//
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#ifndef LIBND4J_GRAPH_H
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#define LIBND4J_GRAPH_H
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#include <list>
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#include <algorithm>
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#include <unordered_map>
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//#include <NDArray.h>
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#include <graph/Node.h>
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#include <graph/Stash.h>
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#include <graph/Scope.h>
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#include <graph/Variable.h>
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#include <graph/VariableSpace.h>
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#include <graph/generated/node_generated.h>
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#include <graph/generated/graph_generated.h>
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#include <graph/generated/config_generated.h>
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#include <graph/ExecutorConfiguration.h>
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#include <ops/declarable/OpDescriptor.h>
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namespace nd4j {
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namespace graph {
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class ND4J_EXPORT Graph {
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protected:
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ExecutorConfiguration *_configuration;
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VariableSpace *_variableSpace;
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Stash* _stash;
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// this list holds references to Node ptrs, which should be free'd in Graph destructor
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std::vector<Node*> _handles;
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// vector holds ID's of top nodes only
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std::vector<int > *_nodes;
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std::map<int, nd4j::graph::Node*> *_mapped;
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std::map<int, std::vector<nd4j::graph::Node*> *> *_onion;
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std::map<int, nd4j::graph::Node*> _unmapped;
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std::vector<int> _unmappedMap; // macOS?
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std::mutex _mutexPreprocessing;
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std::atomic<bool> _built;
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std::vector<int> _output;
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std::vector<int> _autos;
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std::map<int, Scope*> _mappedScopes;
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std::vector<Scope*> _scopes;
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////////////////////////////////////////
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Nd4jStatus validateNode(nd4j::graph::Node *node);
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void expandOnion(int newLayer);
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void injectNode(nd4j::graph::Node *node);
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void pushToOutputOnce(int id);
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void printOutNode(Node* node);
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void prepareOutputs();
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public:
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Graph(const FlatGraph *flatGraph = nullptr, VariableSpace *variableSpace = nullptr);
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~Graph();
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// this method applies toposort to nodes
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void toposortNodes();
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// method that'll print out graph
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Nd4jStatus validate();
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// this method will build structured representation of graph
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Nd4jStatus buildGraph();
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// this method will return estimated memory size (in bytes) required for 1 full graph execution round
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Nd4jLong estimateRequiredMemory();
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// this method returns number of root nodes in this graph
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int rootNodes();
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// this method returns total number of nodes in this graph
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int totalNodes();
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int numberOfPlaceholders();
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std::vector<nd4j::graph::Variable*>* getPlaceholders();
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/**
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* This method returns pointer to thread_local VariableSpace
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* @return
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*/
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nd4j::graph::VariableSpace *getVariableSpace();
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/**
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* This method adds given node to the graph
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*
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* @param node
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*/
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void addNode(nd4j::graph::Node *node);
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/**
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* This method returns layered representation of the graph
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*
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* @return
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*/
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std::map<int, std::vector<nd4j::graph::Node*> *> *getOnion();
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/**
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* This method returns map of all nodes of the graph
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* @return
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*/
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std::map<int, nd4j::graph::Node*> *getMapped();
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/**
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* This method returns outputs of this graph
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* @return
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*/
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std::vector<nd4j::graph::Variable*> *fetchOutputs();
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/**
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* This method returns pointer to ExecutorConfiguration
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*
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* @return
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*/
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ExecutorConfiguration *getExecutorConfiguration();
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/**
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* This method adds specified node (by ID) to de
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* @param id
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*/
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void addOutput(int id);
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/**
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* This method returns all nodes at once (order is NOT guaranteed)
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* @return
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*/
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std::vector<nd4j::graph::Node*> *getAllNodes();
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/**
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* This method prints out Graph op-by-op, and respective inputs
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*/
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void printOut();
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/**
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* This method collect all ops from the graph into ops vector
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*/
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std::vector<nd4j::ops::OpDescriptor> getOperations();
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/**
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* This method returns Scope ptr specified with id
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*
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* @param id
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* @return
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*/
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Scope* scopeById(int id);
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/**
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* This method returns TRUE if specified ID refers to Scope, and false otherwise
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* @param id
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* @return
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*/
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bool hasScope(int id);
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/**
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* This method returns clone of the graph
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*/
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Graph* clone();
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/**
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* This method returns clone of the graph, backed by VariableProxy instead of VariableSpace
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*/
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Graph* cloneWithProxy();
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/**
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* This method removes reference to VariableSpace from this Graph
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*/
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void forgetVariableSpace();
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/**
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* This method returns Node with given Id
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*/
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Node* nodeById(int nodeId);
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/**
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* This method returns True if node with given ID exists, False otherwise
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* @param nodeId
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* @return
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*/
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bool hasNode(int nodeId);
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/**
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* This method returns hash of given Graph instance
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*/
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Nd4jLong hashCode();
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/**
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* PLEASE NOTE: This method will be moved to private section
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*/
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void tagInplaceNodes();
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void replaceState(VariableSpace *state, ExecutorConfiguration *configuration);
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FORCEINLINE std::vector<int>* nodes() {
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return _nodes;
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}
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FORCEINLINE std::vector<int>* autos() {
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return &_autos;
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}
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FORCEINLINE std::vector<int>* output() {
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return &_output;
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}
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FORCEINLINE std::map<int, Scope*>* scopes() {
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return &_mappedScopes;
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}
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FORCEINLINE bool built() {
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return _built.load();
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}
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FORCEINLINE void pullState(Graph *other) {
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for (int e = 0; e < other->nodes()->size(); e++)
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this->_nodes->emplace_back(other->nodes()->at(e));
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for (int e = 0; e < other->output()->size(); e++)
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this->_output.emplace_back(other->output()->at(e));
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for (int e = 0; e < other->autos()->size(); e++)
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this->_autos.emplace_back(other->autos()->at(e));
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for (auto &v: *other->scopes()) {
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auto scp = v.second->clone();
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this->_mappedScopes[v.first] = scp;
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this->_scopes.emplace_back(scp);
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}
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for (auto &v: *other->getOnion()) {
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auto vec = this->_onion->count(v.first) > 0 ? this->_onion->at(v.first) : new std::vector<Node*>();
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auto ovec = (*other->getOnion())[v.first];
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for (auto x: *(ovec)) {
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auto n = x->clone();
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vec->emplace_back(n);
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_handles.emplace_back(n);
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(*this->_mapped)[n->id()] = n;
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}
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if (this->_onion->count(v.first) < 1)
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(*this->_onion)[v.first] = vec;
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}
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this->_built.store(other->built());
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}
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};
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}
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}
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#endif //LIBND4J_GRAPH_H
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