[MetaSchedule][Minor] Fix Median Number (#12273)

The previous median number calculation util function used the wrong index which could cause out of bound issue as mentioned in #12199 . This PR fixed this issue.
apache · Aug 2, 2022 · 0261b8e · 0261b8e
1 parent bc91978
commit 0261b8e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/meta_schedule/utils.h b/src/meta_schedule/utils.h
@@ -357,7 +357,7 @@ inline double GetRunMsMedian(const RunnerResult& runner_result) {
   std::sort(v.begin(), v.end());
   int n = v.size();
   if (n % 2 == 0) {
-    return (v[n / 2] + v[n / 2 + 1]) * 0.5 * 1000.0;
+    return (v[n / 2 - 1] + v[n / 2]) * 0.5 * 1000.0;
   } else {
     return v[n / 2] * 1000.0;
   }