Perftest OOM on genStratStatsData 80GB w/ codegen

java.lang.OutOfMemoryError: Java heap space
	at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57)
	at java.nio.ByteBuffer.allocate(ByteBuffer.java:335)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$3.apply(TorrentBroadcast.scala:271)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$3.apply(TorrentBroadcast.scala:271)
	at org.apache.spark.util.io.ChunkedByteBufferOutputStream.allocateNewChunkIfNeeded(ChunkedByteBufferOutputStream.scala:87)
	at org.apache.spark.util.io.ChunkedByteBufferOutputStream.write(ChunkedByteBufferOutputStream.scala:75)
	at net.jpountz.lz4.LZ4BlockOutputStream.flushBufferedData(LZ4BlockOutputStream.java:205)
	at net.jpountz.lz4.LZ4BlockOutputStream.finish(LZ4BlockOutputStream.java:235)
	at net.jpountz.lz4.LZ4BlockOutputStream.close(LZ4BlockOutputStream.java:175)
	at java.io.ObjectOutputStream$BlockDataOutputStream.close(ObjectOutputStream.java:1828)
	at java.io.ObjectOutputStream.close(ObjectOutputStream.java:742)
	at org.apache.spark.serializer.JavaSerializationStream.close(JavaSerializer.scala:57)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$blockifyObject$1.apply$mcV$sp(TorrentBroadcast.scala:278)
	at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1346)
	at org.apache.spark.broadcast.TorrentBroadcast$.blockifyObject(TorrentBroadcast.scala:277)
	at org.apache.spark.broadcast.TorrentBroadcast.writeBlocks(TorrentBroadcast.scala:126)
	at org.apache.spark.broadcast.TorrentBroadcast.<init>(TorrentBroadcast.scala:88)
	at org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:34)
	at org.apache.spark.broadcast.BroadcastManager.newBroadcast(BroadcastManager.scala:56)
	at org.apache.spark.SparkContext.broadcast(SparkContext.scala:1488)
	at org.apache.spark.api.java.JavaSparkContext.broadcast(JavaSparkContext.scala:650)
	at org.apache.sysml.runtime.controlprogram.context.SparkExecutionContext.getBroadcastForVariable(SparkExecutionContext.java:559)
	at org.apache.sysml.runtime.instructions.spark.SpoofSPInstruction.processInstruction(SpoofSPInstruction.java:125)
	at org.apache.sysml.runtime.controlprogram.ProgramBlock.executeSingleInstruction(ProgramBlock.java:264)
	at org.apache.sysml.runtime.controlprogram.ProgramBlock.executeInstructions(ProgramBlock.java:218)
	at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:163)
	at org.apache.sysml.runtime.controlprogram.Program.execute(Program.java:118)
	at org.apache.sysml.api.ScriptExecutorUtils.executeRuntimeProgram(ScriptExecutorUtils.java:102)
	at org.apache.sysml.api.DMLScript.execute(DMLScript.java:747)
	at org.apache.sysml.api.DMLScript.executeScript(DMLScript.java:511)
	at org.apache.sysml.api.DMLScript.main(DMLScript.java:238)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)