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Parallelization with Apache Ignite

Example showing how to parallelize function evaluations across multiple computers using Apache Ignite.

Usage

To run these examples on the local machine, simply run either of the Java examples. Ignite will automatically distribute the work across all available CPUs.

To distribute the work across multiple machines, you must setup an Ignite config file specifying the topology and start one or more nodes following the guidance at https://ignite.apache.org/docs/latest/starting-nodes.

Configuration

Since Apache Ignite accesses Java's proprietary APIs, you might see errors like

Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field ... accessible

To fix this, you will need to add the following options when starting Java.

--add-opens=java.base/jdk.internal.access=ALL-UNNAMED
--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
--add-opens=java.base/sun.util.calendar=ALL-UNNAMED
--add-opens=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED
--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED
--add-opens=java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED
--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED
--add-opens=java.base/java.io=ALL-UNNAMED
--add-opens=java.base/java.nio=ALL-UNNAMED
--add-opens=java.base/java.net=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED
--add-opens=java.base/java.lang=ALL-UNNAMED
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
--add-opens=java.base/java.math=ALL-UNNAMED
--add-opens=java.sql/java.sql=ALL-UNNAMED
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED
--add-opens=java.base/java.time=ALL-UNNAMED
--add-opens=java.base/java.text=ALL-UNNAMED
--add-opens=java.management/sun.management=ALL-UNNAMED
--add-opens java.desktop/java.awt.font=ALL-UNNAMED

More details can be found at https://ignite.apache.org/docs/latest/setup#running-ignite-with-java-11-or-later.

License

Copyright 2009-2024 David Hadka and other contributors. All rights reserved.

The MOEA Framework is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

The MOEA Framework is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with the MOEA Framework. If not, see http://www.gnu.org/licenses/.