spark_core_ATMM

This is the source code of Spark (version 2.4.3) with a new memory manager implemented.

To merge this code with other versions:

1. copy this file src/main/scala/org/apache/spark/memory/AutoTuneMemoryManager.scala to your Spark source code directory $Your/Spark/Path/src/main/scala/org/apache/spark/memory/.
2. Files modified are src/main/scala/org/apache/spark/SparkEnv.scala, src/main/scala/org/apache/spark/SparkConf.scala, and src/main/scala/org/apache/spark/executor/Executor.scala. You can find the modified codes by searching "Modified" (commented). Or use command "diff" to compare these files with original files (Download from https://spark.apache.org/downloads.html). Then modify your Spark code.
3. rebuild Spark Core Module.