philo-he commented on code in PR #13115:
URL: https://github.com/apache/gluten/pull/13115#discussion_r4149028548
##########
cpp/velox/config/VeloxConfig.h:
##########
@@ -169,6 +169,10 @@ const std::string kVeloxAsyncTimeoutOnTaskStopping =
"spark.gluten.sql.columnar.backend.velox.asyncTimeoutOnTaskStopping";
const int32_t kVeloxAsyncTimeoutOnTaskStoppingDefault = 30000; // 30s
+// Size of the dedicated CPU thread pool for the parallel broadcast hash-table
build.
+// Defaults to the number of task slots per executor, with a minimum of one
thread.
+const std::string kHashTableBuildThreads =
"spark.gluten.sql.columnar.backend.velox.hashTableBuildThreads";
Review Comment:
Suggest to name it like broadcastHashTableBuildThreads since it is only
specific to BHJ.
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