delete useless codes in softmax backward.

8 years ago · cac4ad4449
parent 56faf51343
commit cac4ad4449
1 changed files with 0 additions and 9 deletions
--- a/paddle/gserver/activations/ActivationFunction.cpp
+++ b/paddle/gserver/activations/ActivationFunction.cpp
@ -112,7 +112,6 @@ BEGIN_DEFINE_ACTIVATION(softmax)
 private:
 MatrixPtr sftMaxSum_;
 MatrixPtr sftMaxDot_;
-MatrixPtr one_;

 public:
 Error __must_check forward(Argument& act) {
@ -138,14 +137,6 @@ Error __must_check backward(Argument& act) {
                           1,
                           /* trans */ false,
                           useGpu(act.deviceId));
-    if (!one_ || one_->getWidth() != outputG->getWidth()) {
-      Matrix::resizeOrCreate(one_,
-                             1,
-                             outputG->getWidth(),
-                             /* trans */ false,
-                             useGpu(act.deviceId));
-      one_->one();
-    }

    sftMaxDot_->dotMul(*outputG, *outputV);
    sftMaxSum_->colMerge(*sftMaxDot_);