Use double precision in metric calculation. (#7364)

2021-11-02 12:00:32 +08:00
parent 239dbb3c0a
commit 0f7a9b42f1
11 changed files with 219 additions and 224 deletions
--- a/include/xgboost/metric.h
+++ b/include/xgboost/metric.h
@@ -58,9 +58,8 @@ class Metric : public Configurable {
   *        the average statistics across all the node,
   *        this is only supported by some metrics
   */
-  virtual bst_float Eval(const HostDeviceVector<bst_float>& preds,
-                         const MetaInfo& info,
-                         bool distributed) = 0;
+  virtual double Eval(const HostDeviceVector<bst_float> &preds,
+                      const MetaInfo &info, bool distributed) = 0;
  /*! \return name of metric */
  virtual const char* Name() const = 0;
  /*! \brief virtual destructor */