Allow boot_bias for recurrent group to be static

93539093 · xuwei06 · b7a6cc9c · 93539093
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

paddle/gserver/gradientmachines/RecurrentGradientMachine.cpp paddle/gserver/gradientmachines/RecurrentGradientMachine.cpp +1 -1

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--- a/paddle/gserver/gradientmachines/RecurrentGradientMachine.cpp
+++ b/paddle/gserver/gradientmachines/RecurrentGradientMachine.cpp
@@ -184,7 +184,7 @@ public:
  }
  void backward(const UpdateCallback& callback) override {
-    if (biases_) {
+    if (biases_ && biases_->getWGrad()) {
      backwardActivation();
      biases_->getWGrad()->collectBias(*getOutputGrad(), 1);
      biases_->getParameterPtr()->incUpdate(callback);