fix error when using distributed quantile regression (#1593)

c78f26ed · Ilya Matiach · Guolin Ke · c7b86f1d · c78f26ed
Commit c78f26ed authored Aug 17, 2018 by Ilya Matiach Committed by Guolin Ke Aug 17, 2018
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include/LightGBM/network.h include/LightGBM/network.h +1 -1

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--- a/include/LightGBM/network.h
+++ b/include/LightGBM/network.h
@@ -234,7 +234,7 @@ public:

  template<class T>
  static void GlobalSum(std::vector<T>& local) {
-    std::vector<T> global;
+    std::vector<T> global(local.size(), 0);
    Allreduce(reinterpret_cast<char*>(local.data()),
              static_cast<comm_size_t>(sizeof(T) * local.size()), sizeof(T),
              reinterpret_cast<char*>(global.data()),