Bug fixed.

Fix backward bugs in MulAndShift function.

source/network/XBackwardMath.cpp

@@ -1553,6 +1553,7 @@ void XMathGrad::GradMulAndShift(XTensor * node, bool isEfficient)
     int n = income.GetParamInt(0);
     MATRIX_TRANS_TYPE transW = income.GetParamTrans(1);
     MATRIX_TRANS_TYPE transX = income.GetParamTrans(2);
+    DTYPE alpha = income.GetParam(3);
 
     if (!isEfficient || w->isGrad)
         XNoder::MakeGrad(w);
@@ -1614,7 +1615,6 @@ void XMathGrad::GradMulAndShift(XTensor * node, bool isEfficient)
 
     }
 
-
     /* compute dE/dx, dE/dw */
     XTensor * c = node;
     XTensor * dedc = node->grad;
@@ -1622,7 +1622,7 @@ void XMathGrad::GradMulAndShift(XTensor * node, bool isEfficient)
     XTensor * dedx = x->grad;
 
     if (x->order == 2 && w->order == 2)
-        GradMatrixMul(x, dedx, transX, w, dedw, transW, dedc, 1.0F, isEfficient);
+        GradMatrixMul(x, dedx, transX, w, dedw, transW, dedc, alpha, isEfficient);
     else if (transX == X_NOTRANS && x->order > 2 && w->order == 2){
         int orderBackupX = x->order;
         int orderBackupC = c->order;
@@ -1637,14 +1637,13 @@ void XMathGrad::GradMulAndShift(XTensor * node, bool isEfficient)
             dedx->Reshape(dedx->unitNum / dedx->GetDim(-1), dedx->GetDim(-1));
         dedc->Reshape(dedc->unitNum / dedc->GetDim(-1), dedc->GetDim(-1));
 
-        GradMatrixMul(x, dedx, transX, w, dedw, transW, dedc, 1.0F, isEfficient);
+        GradMatrixMul(x, dedx, transX, w, dedw, transW, dedc, alpha, isEfficient);
 
         x->Reshape(orderBackupX, dimsBackupX);
         c->Reshape(orderBackupC, dimsBackupC);
         if (!isEfficient || x->isGrad)
             dedx->Reshape(orderBackupX, dimsBackupX);
         dedc->Reshape(orderBackupC, dimsBackupC);
-
     }
 
     node->visitMark = NODE_FINISHED;

source/tensor/core/arithmetic/MulAndShift.cpp

@@ -80,7 +80,6 @@ XTensor MulAndShift(const XTensor &x, const XTensor &w, const XTensor &b,
 
             // TODO!!
             ShowNTErrors("TODO!");
-
         }
         else if (n >= 0 && n < tmp->order) {
             /* call _SumDim function */
@@ -95,6 +94,7 @@ XTensor MulAndShift(const XTensor &x, const XTensor &w, const XTensor &b,
             XLink::AddParamToHeadInt(&c, n);
             XLink::AddParamToHeadTrans(&c, X_NOTRANS);
             XLink::AddParamToHeadTrans(&c, X_NOTRANS);
+            XLink::AddParamToHead(&c, alpha);
         }
     }