Java uses only 1 of 2 CPU with NUMA (Neo4J)

Viewed 1146

I’m working on a java program to create a really large Neo4J database. I use the batchinserter and Executors.newFixedThreadPool to speed things up. My Win2012R2 server has 2 cpu’s (2x6 Cores + 2x6 Hyper-threads) and 256GB in NUMA architecture. My problem is now, that my importer only uses 1 CPU (Node). Is it possible to use both NUMA-Nodes with only one javaprocess?

Javaoptions: -XX:+UseNUMA -Xmx64g -Xms64g

2 Answers
Related