Merge pull request #11579 from jacquesqiao/fix-concat-grad-kernel

fix concat grad kernel
PaddlePaddle · Jun 20, 2018 · 4116b55 · 4116b55
2 parents d020d7f + 762160b
commit 4116b55
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/paddle/fluid/operators/math/concat.cu b/paddle/fluid/operators/math/concat.cu
@@ -209,7 +209,7 @@ class ConcatGradFunctor<platform::CUDADeviceContext, T> {
 
     outputs_cols[0] = 0;
     for (int i = 0; i < o_num; ++i) {
-      int t_col = outputs->at(i)->numel() / out_row;
+      int t_col = ref_inputs.at(i)->numel() / out_row;
       if (sameShape) {
         if (t_col != out0_col) sameShape = false;
       }