make sum the default eltwise operation

diff --git a/src/caffe/proto/caffe.proto b/src/caffe/proto/caffe.proto
index a7fb37b..da07af0 100644 (file)
--- a/src/caffe/proto/caffe.proto
+++ b/src/caffe/proto/caffe.proto
@@ -257,7 +257,7 @@ message EltwiseParameter {
     PROD = 0;
     SUM = 1;
   }
-  optional EltwiseOp operation = 1; // element-wise operation to compute
+  optional EltwiseOp operation = 1 [default = SUM]; // element-wise operation
 }
 
 // Message that stores parameters used by HDF5DataLayer