bug fixes for multi-threading

source/train/XLeader.cpp

@@ -107,12 +107,23 @@ void XLeader::SetServerModel(XConfig * config, XModel * model)
 {
     XList members;
     for (int i = 0; i < jworkers.count; i++) {
-        XModel * member = (XModel*)jworkers.GetItem(i);
+        XModel * member = ((XWorkerJob*)jworkers[i])->GetModel();
         members.Add(member);
     }
 
     SetServerModel(config, model, &members);
 }
+    
+/* initialize the models for running them */
+void XLeader::InitForRun()
+{
+    serverModel.InitForRun();
+    
+    for (int i = 0; i < jworkers.count; i++) {
+        XModel * model = ((XWorkerJob*)jworkers[i])->GetModel();
+        model->InitForRun();
+    }
+}
 
 /* get loss */
 float XLeader::GetLoss()
@@ -256,12 +267,14 @@ run the model (for one time). Basically this is a map-reduce process.
 bool XLeader::Run(XConfig * config, DataDistributeBase * dataDistributor,
                   XModel * model, XOptimizer * optimizer)
 {
-     bool isDataOK = true;
-     int activeJobCount = 0;
-     int* active = new int[jworkers.count];
+    bool isDataOK = true;
+    int activeJobCount = 0;
+    int* active = new int[jworkers.count];
+    
+    InitForRun();
 
-     for (int i = 0; i < jworkers.count; i++)
-         active[i] = 0;
+    for (int i = 0; i < jworkers.count; i++)
+        active[i] = 0;
 
     /* Feed the input to each worker and geneate the output.
        For each worker, we define a job queue and enqueue jobs

source/train/XLeader.h

@@ -108,6 +108,9 @@ public:
 
     /* set the server model */
     void SetServerModel(XConfig * config, XModel * model);
+    
+    /* initialize the models for running them */
+    void InitForRun();
 
     /* get loss */
     float GetLoss();

source/train/XModel.cpp

@@ -126,6 +126,16 @@ bool XModel::CheckParam()
 
     return true;
 }
+    
+/* initial model for running the it */
+void XModel::InitForRun()
+{
+    for (int i = 0; i < params.count; i++) {
+        XTensor * param = (XTensor*)params[i];
+        param->isGradFinished = false;
+        flags[i] = PARAM_STATE_NOT_READY;
+    }
+}
 
 /* refresh the model */
 void XModel::RefreshMe()

source/train/XModel.h

@@ -94,6 +94,9 @@ public:
 
     /* check if the parameters are well-defined for training */
     bool CheckParam();
+    
+    /* initial model for running the it */
+    void InitForRun();
 
     /* refresh the model */
     void RefreshMe();
@@ -110,4 +113,4 @@ public:
 
 }
 
-#endif // __XMODEL_H__
\ No newline at end of file
+#endif // __XMODEL_H__