Merge branch 'develop' into 'master'

Develop

See merge request !30

pom.xml

@@ -9,7 +9,7 @@
 
   <groupId>de.monticore.lang.monticar</groupId>
   <artifactId>cnnarch-gluon-generator</artifactId>
-  <version>0.2.11-SNAPSHOT</version>
+  <version>0.2.12-SNAPSHOT</version>
 
   <!-- == PROJECT DEPENDENCIES ============================================= -->
 
@@ -17,9 +17,9 @@
 
     <!-- .. SE-Libraries .................................................. -->
 
-      <CNNArch.version>0.3.5-SNAPSHOT</CNNArch.version>
-      <CNNTrain.version>0.3.10-SNAPSHOT</CNNTrain.version>
-      <CNNArch2X.version>0.0.6-SNAPSHOT</CNNArch2X.version>
+      <CNNArch.version>0.3.7-SNAPSHOT</CNNArch.version>
+      <CNNTrain.version>0.3.12-SNAPSHOT</CNNTrain.version>
+      <CNNArch2X.version>0.0.7-SNAPSHOT</CNNArch2X.version>
       <embedded-montiarc-math-opt-generator>0.1.6</embedded-montiarc-math-opt-generator>
       <EMADL2PythonWrapper.version>0.0.2-SNAPSHOT</EMADL2PythonWrapper.version>
 

src/main/java/de/monticore/lang/monticar/cnnarch/gluongenerator/CNNArch2Gluon.java

@@ -71,15 +71,18 @@ public class CNNArch2Gluon extends CNNArchGenerator {
         temp = controller.process("execute", Target.CPP);
         fileContentMap.put(temp.getKey().replace(".h", ""), temp.getValue());
 
-        temp = controller.process("CNNBufferFile", Target.CPP);
-        fileContentMap.put("CNNBufferFile.h", temp.getValue());
+        temp = controller.process("CNNModelLoader", Target.CPP);
+        fileContentMap.put("CNNModelLoader.h", temp.getValue());
 
         return fileContentMap;
     }
 
+
     private Map<String, String> compileFileContentMap(ArchitectureSymbol architecture) {
         TemplateConfiguration templateConfiguration = new GluonTemplateConfiguration();
 
+        architecture.processForEpisodicReplayMemory();
+
         Map<String, String> fileContentMap = new HashMap<>();
         CNNArch2GluonTemplateController archTc = new CNNArch2GluonTemplateController(
                 architecture, templateConfiguration);

src/main/java/de/monticore/lang/monticar/cnnarch/gluongenerator/CNNArch2GluonLayerSupportChecker.java

@@ -41,6 +41,10 @@ public class CNNArch2GluonLayerSupportChecker extends LayerSupportChecker {
         supportedLayerList.add(AllPredefinedLayers.BROADCAST_ADD_NAME);
         supportedLayerList.add(AllPredefinedLayers.RESHAPE_NAME);
         // supportedLayerList.add(AllPredefinedLayers.CROP_NAME);
+        supportedLayerList.add(AllPredefinedLayers.LARGE_MEMORY_NAME);
+		supportedLayerList.add(AllPredefinedLayers.EPISODIC_MEMORY_NAME);
+        supportedLayerList.add(AllPredefinedLayers.DOT_PRODUCT_SELF_ATTENTION_NAME);
+        supportedLayerList.add(AllPredefinedLayers.LOAD_NETWORK_NAME);
     }
 
 }

src/main/java/de/monticore/lang/monticar/cnnarch/gluongenerator/CNNArch2GluonTemplateController.java

@@ -87,6 +87,17 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         setCurrentElement(previousElement);
     }
 
+    public void include(SerialCompositeElementSymbol compositeElement, Integer episodicSubNetIndex, Writer writer, NetDefinitionMode netDefinitionMode){
+        ArchitectureElementData previousElement = getCurrentElement();
+        setCurrentElement(compositeElement);
+
+        for (ArchitectureElementSymbol element : compositeElement.getEpisodicSubNetworks().get(episodicSubNetIndex)){
+            include(element, writer, netDefinitionMode);
+        }
+
+        setCurrentElement(previousElement);
+    }
+
     public void include(ArchitectureElementSymbol architectureElement, Writer writer, NetDefinitionMode netDefinitionMode){
         if (architectureElement instanceof CompositeElementSymbol){
             include((CompositeElementSymbol) architectureElement, writer, netDefinitionMode);
@@ -106,6 +117,10 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         include(architectureElementSymbol, NetDefinitionMode.fromString(netDefinitionMode));
     }
 
+    public void include(ArchitectureElementSymbol architectureElementSymbol, Integer episodicSubNetIndex, String netDefinitionMode) {
+        include(architectureElementSymbol, episodicSubNetIndex, NetDefinitionMode.fromString(netDefinitionMode));
+    }
+
     public void include(ArchitectureElementSymbol architectureElement, NetDefinitionMode netDefinitionMode){
         if (getWriter() == null){
             throw new IllegalStateException("missing writer");
@@ -113,10 +128,21 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         include(architectureElement, getWriter(), netDefinitionMode);
     }
 
+    public void include(ArchitectureElementSymbol architectureElement, Integer episodicSubNetIndex, NetDefinitionMode netDefinitionMode){
+        if (getWriter() == null){
+            throw new IllegalStateException("missing writer");
+        }
+        include((SerialCompositeElementSymbol) architectureElement, episodicSubNetIndex, getWriter(), netDefinitionMode);
+    }
+
     public Set<String> getStreamInputNames(SerialCompositeElementSymbol stream, boolean outputAsArray) {
         return getStreamInputs(stream, outputAsArray).keySet();
     }
 
+    public Set<String> getSubnetInputNames(List<ArchitectureElementSymbol> subNet) {
+        return getSubnetInputs(subNet).keySet();
+    }
+
     public ArrayList<String> getStreamInputVariableNames(SerialCompositeElementSymbol stream, boolean outputAsArray) {
         ArrayList<String> inputVariableNames = new ArrayList<String>();
         for (ArchitectureElementSymbol element : stream.getFirstAtomicElements()) {
@@ -226,6 +252,29 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         return outputNames;
     }
 
+    public Set<String> getSubnetOutputNames(List<ArchitectureElementSymbol> subNet){
+        Set<String> outputNames = new LinkedHashSet<>();
+
+        for (ArchitectureElementSymbol element : subNet.get(subNet.size()-1).getLastAtomicElements()) {
+            String name = getName(element);
+
+            outputNames.add(name);
+        }
+
+        return outputNames;
+    }
+
+    public int getSubnetOutputSize(List<ArchitectureElementSymbol> subNet){
+        int outputSize = 0;
+        for (ArchitectureElementSymbol element : subNet.get(subNet.size()-1).getLastAtomicElements()) {
+            outputSize += element.getOutputTypes().size();
+        }
+        if(outputSize == 0){
+            outputSize = 1;
+        }
+        return outputSize;
+    }
+
     public List<String> getUnrollOutputNames(UnrollInstructionSymbol unroll, String variable) {
         List<String> outputNames = new LinkedList<>(getStreamOutputNames(unroll.getBody(), true));
         Map<String, String> pairs = getUnrollPairs(unroll.getBody(), unroll.getResolvedBodies().get(0), variable);
@@ -403,6 +452,31 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         return inputs;
     }
 
+    public Map<String, List<String>> getSubnetInputs(List<ArchitectureElementSymbol> subNet) {
+        Map<String, List<String>> inputs = new LinkedHashMap<>();
+
+        for (ArchitectureElementSymbol element : subNet.get(0).getFirstAtomicElements()) {
+
+            if (element instanceof ConstantSymbol) {
+                inputs.put(getName(element), Arrays.asList("1"));
+            }
+            else {
+                List<Integer> intDimensions = element.getOutputTypes().get(0).getDimensions();
+
+                List<String> dimensions = new ArrayList<>();
+                for (Integer intDimension : intDimensions) {
+                    dimensions.add(intDimension.toString());
+                }
+
+                String name = getName(element);
+
+                inputs.put(name, dimensions);
+            }
+        }
+
+        return inputs;
+    }
+
     public Map<String, List<String>> getStreamOutputs(SerialCompositeElementSymbol stream, boolean outputAsArray) {
         Map<String, List<String>> outputs = new LinkedHashMap<>();
 
@@ -519,6 +593,15 @@ public class CNNArch2GluonTemplateController extends CNNArchTemplateController {
         return dimensions;
     }
 
+    public List<Integer> cutDimensionsInteger(List<Integer> dimensions) {
+        while (dimensions.size() > 1 && dimensions.get(dimensions.size() - 1).equals(1)) {
+            dimensions.remove(dimensions.size() - 1);
+        }
+
+        return dimensions;
+    }
+
+
     public boolean hasUnrollInstructions() {
         for (NetworkInstructionSymbol networkInstruction : getArchitecture().getNetworkInstructions()) {
             if (networkInstruction.isUnroll()) {

src/main/java/de/monticore/lang/monticar/cnnarch/gluongenerator/CNNTrain2Gluon.java

@@ -130,9 +130,27 @@ public class CNNTrain2Gluon extends CNNTrainGenerator {
 
         Map<String, String> fileContentMap = new HashMap<>();
 
+        //Context Information and Optimizer for local adaption during prediction for replay memory layer (the second only applicaple for supervised learning)
+        String cnnTrainLAOptimizerTemplateContent = templateConfiguration.processTemplate(ftlContext, "CNNLAOptimizer.ftl");
+        fileContentMap.put("CNNLAOptimizer_" + getInstanceName() + ".h", cnnTrainLAOptimizerTemplateContent);
+
+        //AdamW optimizer if used for training
+        if(configuration.getOptimizer() != null) {
+            String optimizerName = configuration.getOptimizer().getName();
+            Optional<OptimizerSymbol> criticOptimizer = configuration.getCriticOptimizer();
+            String criticOptimizerName = "";
+            if (criticOptimizer.isPresent()) {
+                criticOptimizerName = criticOptimizer.get().getName();
+            }
+            if (optimizerName.equals("adamw") || criticOptimizerName.equals("adamw")) {
+                String adamWContent = templateConfiguration.processTemplate(ftlContext, "Optimizer/AdamW.ftl");
+                fileContentMap.put("AdamW.py", adamWContent);
+            }
+        }
+
         if (configData.isSupervisedLearning()) {
-            String cnnTrainTemplateContent = templateConfiguration.processTemplate(ftlContext, "CNNTrainer.ftl");
-            fileContentMap.put("CNNTrainer_" + getInstanceName() + ".py", cnnTrainTemplateContent);
+            String cnnTrainTrainerTemplateContent = templateConfiguration.processTemplate(ftlContext, "CNNTrainer.ftl");
+            fileContentMap.put("CNNTrainer_" + getInstanceName() + ".py", cnnTrainTrainerTemplateContent);
         } else if (configData.isGan()) {
             final String trainerName = "CNNTrainer_" + getInstanceName();
             if (!configuration.getDiscriminatorNetwork().isPresent()) {
@@ -189,7 +207,6 @@ public class CNNTrain2Gluon extends CNNTrainGenerator {
 
             final String ganTrainerContent = templateConfiguration.processTemplate(ftlContext, "gan/Trainer.ftl");
             fileContentMap.put(trainerName + ".py", ganTrainerContent);
-
         } else if (configData.isReinforcementLearning()) {
             final String trainerName = "CNNTrainer_" + getInstanceName();
             final RLAlgorithm rlAlgorithm = configData.getRlAlgorithm();

src/main/java/de/monticore/lang/monticar/cnnarch/gluongenerator/NetDefinitionMode.java

@@ -6,6 +6,7 @@ package de.monticore.lang.monticar.cnnarch.gluongenerator;
  */
 public enum NetDefinitionMode {
     ARCHITECTURE_DEFINITION,
+    PREDICTION_PARAMETER,
     FORWARD_FUNCTION;
 
     public static NetDefinitionMode fromString(final String netDefinitionMode) {
@@ -14,6 +15,8 @@ public enum NetDefinitionMode {
                 return ARCHITECTURE_DEFINITION;
             case "FORWARD_FUNCTION":
                 return FORWARD_FUNCTION;
+            case "PREDICTION_PARAMETER":
+                return PREDICTION_PARAMETER;
             default:
                 throw new IllegalArgumentException("Unknown Net Definition Mode");
         }

src/main/resources/templates/gluon/CNNBufferFile.ftl

-<#-- (c) https://github.com/MontiCore/monticore -->
-#ifndef CNNBUFFERFILE_H
-#define CNNBUFFERFILE_H
-
-#include <stdio.h>
-#include <iostream>
-#include <fstream>
-
-// Read file to buffer
-class BufferFile {
- public :
-    std::string file_path_;
-    int length_;
-    char* buffer_;
-
-    explicit BufferFile(std::string file_path)
-    :file_path_(file_path) {
-
-        std::ifstream ifs(file_path.c_str(), std::ios::in | std::ios::binary);
-        if (!ifs) {
-            std::cerr << "Can't open the file. Please check " << file_path << ". \n";
-            length_ = 0;
-            buffer_ = NULL;
-            return;
-        }
-
-        ifs.seekg(0, std::ios::end);
-        length_ = ifs.tellg();
-        ifs.seekg(0, std::ios::beg);
-        std::cout << file_path.c_str() << " ... "<< length_ << " bytes\n";
-
-        buffer_ = new char[sizeof(char) * length_];
-        ifs.read(buffer_, length_);
-        ifs.close();
-    }
-
-    int GetLength() {
-        return length_;
-    }
-    char* GetBuffer() {
-        return buffer_;
-    }
-
-    ~BufferFile() {
-        if (buffer_) {
-          delete[] buffer_;
-          buffer_ = NULL;
-        }
-    }
-};
-
-#endif // CNNBUFFERFILE_H

src/main/resources/templates/gluon/CNNGanTrainer.ftl

@@ -184,16 +184,16 @@ class ${tc.fileNameWithoutEnding}:
             del discriminator_optimizer_params['learning_rate_decay']
 
         if normalize:
-            self._net_creator_dis.construct(mx_context, data_mean=data_mean, data_std=data_std)
+            self._net_creator_dis.construct([mx_context], data_mean=data_mean, data_std=data_std)
         else:
-            self._net_creator_dis.construct(mx_context)
+            self._net_creator_dis.construct([mx_context])
 
-        self._net_creator_gen.construct(mx_context)
+        self._net_creator_gen.construct([mx_context])
 
         if self.use_qnet:
-            self._net_creator_qnet.construct(mx_context)
+            self._net_creator_qnet.construct([mx_context])
             if load_checkpoint:
-                self._net_creator_qnet.load(mx_context)
+                self._net_creator_qnet.load([mx_context])
             else:
                 if os.path.isdir(self._net_creator_qnet._model_dir_):
                     shutil.rmtree(self._net_creator_qnet._model_dir_)
@@ -206,8 +206,8 @@ class ${tc.fileNameWithoutEnding}:
 
         begin_epoch = 0
         if load_checkpoint:
-            begin_epoch = self._net_creator_dis.load(mx_context)
-            self._net_creator_gen.load(mx_context)
+            begin_epoch = self._net_creator_dis.load([mx_context])
+            self._net_creator_gen.load([mx_context])
         else:
             if os.path.isdir(self._net_creator_dis._model_dir_):
                 shutil.rmtree(self._net_creator_dis._model_dir_)
@@ -255,9 +255,9 @@ class ${tc.fileNameWithoutEnding}:
                 gen_input, exp_qnet_output = create_generator_input(batch)
 
                 with autograd.record():
-                    fake_data = gen_net(*gen_input)
+                    fake_data = gen_net(*gen_input)[0][0]
                     fake_data.detach()
-                    discriminated_fake_dis = dis_net(fake_data, *dis_conditional_input)
+                    discriminated_fake_dis = dis_net(fake_data, *dis_conditional_input)[0][0]
                     if self.use_qnet:
                         discriminated_fake_dis, _ = discriminated_fake_dis
 
@@ -265,7 +265,7 @@ class ${tc.fileNameWithoutEnding}:
                     real_labels = mx.nd.ones(discriminated_fake_dis.shape, ctx=mx_context)
 
                     loss_resultF = dis_loss(discriminated_fake_dis, fake_labels)
-                    discriminated_real_dis = dis_net(real_data, *dis_conditional_input)
+                    discriminated_real_dis = dis_net(real_data, *dis_conditional_input)[0][0]
                     if self.use_qnet:
                         discriminated_real_dis, _ = discriminated_real_dis
                     loss_resultR = dis_loss(discriminated_real_dis, real_labels)
@@ -276,8 +276,8 @@ class ${tc.fileNameWithoutEnding}:
 
                 if batch_i % k_value == 0:
                     with autograd.record():
-                        fake_data = gen_net(*gen_input)
-                        discriminated_fake_gen = dis_net(fake_data, *dis_conditional_input)
+                        fake_data = gen_net(*gen_input)[0][0]
+                        discriminated_fake_gen = dis_net(fake_data, *dis_conditional_input)[0][0]
                         if self.use_qnet:
                             discriminated_fake_gen, features = discriminated_fake_gen
                         loss_resultG = dis_loss(discriminated_fake_gen, real_labels)
@@ -285,7 +285,7 @@ class ${tc.fileNameWithoutEnding}:
                             condition = batch.data[traindata_to_index[generator_target_name + "_"]]
                             loss_resultG = loss_resultG + gen_loss_weight * generator_loss_func(fake_data, condition)
                         if self.use_qnet:
-                            qnet_discriminated = [q_net(features)]
+                            qnet_discriminated = [q_net(features)[0][0]]
                             for i, qnet_out in enumerate(qnet_discriminated):
                                 loss_resultG = loss_resultG + qnet_losses[i](qnet_out, exp_qnet_output[i])
                         loss_resultG.backward()

src/main/resources/templates/gluon/CNNLAOptimizer.ftl

+<#-- (c) https://github.com/MontiCore/monticore -->
+<#list configurations as config>
+#ifndef CNNLAOPTIMIZER_${config.instanceName?upper_case}
+#define CNNLAOPTIMIZER_${config.instanceName?upper_case}
+
+#include <mxnet-cpp/MxNetCpp.h>
+
+#include <string>
+#include <vector>
+#include <memory>
+
+using namespace mxnet::cpp;    
+
+class CNNLAOptimizer_${config.instanceName}{
+private:
+    Optimizer *optimizerHandle;
+<#if (config.context)??>
+    std::string context_name = "${config.context}";
+<#else>
+    std::string context_name = "cpu";
+</#if>
+            
+public:
+    explicit CNNLAOptimizer_${config.instanceName}(){
+    
+<#if (config.configuration.optimizer)??>
+<#if config.optimizerName == "adamw">
+        optimizerHandle = OptimizerRegistry::Find("adam");    
+<#else>    
+        optimizerHandle = OptimizerRegistry::Find("${config.optimizerName}");
+</#if> 
+<#list config.optimizerParams?keys as param>
+<#if param == "learning_rate">
+        optimizerHandle->SetParam("lr", ${config.optimizerParams[param]});
+<#elseif param == "weight_decay">
+        optimizerHandle->SetParam("wd", ${config.optimizerParams[param]});
+<#elseif param == "learning_rate_decay">
+<#assign learningRateDecay = config.optimizerParams[param]>
+<#elseif param == "learning_rate_minimum">
+<#assign minLearningRate = config.optimizerParams[param]> 
+<#elseif param == "step_size">
+<#assign stepSize = config.optimizerParams[param]>     
+<#else>
+        optimizerHandle->SetParam("${param}", ${config.optimizerParams[param]});
+</#if>
+</#list>
+<#if (learningRateDecay)?? && (stepSize)??>
+<#if !(minLearningRate)??>
+<#assign minLearningRate = "1e-08">       
+</#if>
+        std::unique_ptr<LRScheduler> lrScheduler(new FactorScheduler(${stepSize}, ${learningRateDecay}, ${minLearningRate}));
+        optimizerHandle->SetLRScheduler(std::move(lrScheduler));
+</#if>    
+<#else>
+       optimizerHandle = OptimizerRegistry::Find("adam"); 
+       optimizerHandle->SetParam("lr", 0.001);
+</#if>
+           
+    
+    
+<#if (config.clipGlobalGradNorm)??>
+        //clip_global_grad_norm=${config.clipGlobalGradNorm},
+</#if>
+    
+    }
+    
+    
+   Optimizer *getOptimizer(){
+        return optimizerHandle;
+   }
+         
+   std::string getContextName(){
+        return context_name;
+   }
+};
+#endif // CNNLAOPTIMIZER_${config.instanceName?upper_case}
+    
+</#list>

src/main/resources/templates/gluon/CNNModelLoader.ftl

+#ifndef CNNMODELLOADER
+#define CNNMODELLOADER
+
+#include <mxnet-cpp/MxNetCpp.h>
+
+#include <stdio.h>
+#include <iostream>
+#include <fstream>
+
+using namespace mxnet::cpp;
+
+// Read files to load moddel symbol and parameters
+class ModelLoader {
+private:
+    Context ctx = Context::cpu();
+    std::vector<Symbol> network_symbol_list;
+    std::vector<std::map<std::string, NDArray>> network_param_map_list;
+
+    std::vector<Symbol> query_symbol_list;
+    std::vector<std::map<std::string, NDArray>> query_param_map_list;
+
+    std::vector<std::map<std::string, NDArray>> replay_memory;
+
+    std::vector<Symbol> loss_symbol;
+    std::vector<std::map<std::string, NDArray>> loss_param_map;
+
+
+    void checkFile(std::string file_path){
+        std::ifstream ifs(file_path.c_str(), std::ios::in | std::ios::binary);
+        if (!ifs) {
+            std::cerr << "Can't open the file. Please check " << file_path << ". \n";
+            return;
+        }
+
+        int length_;
+        ifs.seekg(0, std::ios::end);
+        length_ = ifs.tellg();
+        ifs.seekg(0, std::ios::beg);
+        std::cout << file_path.c_str() << " ... "<< length_ << " bytes\n";
+        ifs.close();
+    }
+
+    void loadComponent(std::string json_path,
+                       std::string param_path,
+                       std::vector<Symbol> &symbols_list,
+                       std::vector<std::map<std::string, NDArray>> &param_map_list){
+        checkFile(json_path);
+        symbols_list.push_back(Symbol::Load(json_path));
+        checkFile(param_path);
+        std::map<std::string, NDArray> params;
+        NDArray::Load(param_path, 0, &params);
+        param_map_list.push_back(processParamMap(params));
+    }
+
+    std::map<std::string, NDArray> processParamMap(std::map<std::string, NDArray> param_map){
+        std::map<std::string, NDArray> processed_param_map;
+        if(!param_map.empty()){
+            for (const auto &pair : param_map) {
+                std::string name = pair.first.substr(4); //the first four letters would be the type (arg: or aux:, but we don't have aux parameters? <- need to make sure)
+                processed_param_map[name] = pair.second.Copy(ctx);
+            }
+        }
+        return processed_param_map;
+    }
+
+public:
+    explicit ModelLoader(std::string file_prefix, mx_uint num_subnets, Context ctx_param){
+
+        ctx = ctx_param;
+        std::string network_json_path;
+        std::string network_param_path;
+        std::string query_json_path;
+        std::string query_param_path;
+        std::string memory_path;
+        std::string loss_json_path;
+        std::string loss_param_path;
+
+        //Load network
+        if(!num_subnets){
+            network_json_path = file_prefix + "-symbol.json";
+            network_param_path = file_prefix + "-0000.params";
+            loadComponent(network_json_path, network_param_path, network_symbol_list, network_param_map_list);
+        }else{
+            for(int i=0; i < num_subnets; i++){
+                network_json_path = file_prefix + "_episodic_sub_net_" + std::to_string(i) + "-symbol.json";
+                network_param_path = file_prefix + "_episodic_sub_net_" + std::to_string(i) + "-0000.params";
+                loadComponent(network_json_path, network_param_path, network_symbol_list, network_param_map_list);
+                if(i >= 1){
+                    query_json_path = file_prefix + "_episodic_query_net_" + std::to_string(i) + "-symbol.json";
+                    query_param_path = file_prefix + "_episodic_query_net_" + std::to_string(i) + "-0000.params";
+                    loadComponent(query_json_path, query_param_path, query_symbol_list, query_param_map_list);
+                    
+                    memory_path = file_prefix + "_episodic_memory_sub_net_" + std::to_string(i) + "-0000";
+                    checkFile(memory_path);
+
+                    std::map<std::string, NDArray> mem_map = NDArray::LoadToMap(memory_path);
+                    for(auto &mem : mem_map){
+                        mem.second = mem.second.Copy(ctx);
+                    }
+                    replay_memory.push_back(mem_map);
+                }
+            }
+        }
+
+        //Load Loss
+        loss_json_path = file_prefix + "_loss-symbol.json";
+        loss_param_path = file_prefix + "_loss-0000.params";
+        loadComponent(loss_json_path, loss_param_path, loss_symbol, loss_param_map);
+
+        NDArray::WaitAll();
+    }
+
+    std::vector<Symbol> GetNetworkSymbols() {
+        return network_symbol_list;
+    }
+
+    std::vector<std::map<std::string, NDArray>> GetNetworkParamMaps() {
+        return network_param_map_list;
+    }
+
+    Symbol GetLoss() {
+        return loss_symbol[0];
+    }
+
+    std::map<std::string, NDArray> GetLossParamMap() {
+        return loss_param_map[0];
+    }
+
+    std::vector<Symbol> GetQuerySymbols() {
+        return query_symbol_list;
+    }
+
+    std::vector<std::map<std::string, NDArray>>  GetQueryParamMaps() {
+        return query_param_map_list;
+    }
+
+    std::vector<std::map<std::string, NDArray>> GetReplayMemory(){
+        return replay_memory;
+    }