LP & QP Java Performance Report

ojAlgo aims to have the best set of pure Java solvers available, and to be roughly on par with good native code solvers when the models are not too big…

1BRC using ojAlgo

The One Billion Row Challenge (1BRC) is a fun exploration of how far modern Java can be pushed for aggregating one billion rows from a text file. Grab all your…

Updated LP Benchmark With Hipparchus

Just discovered a new Java LP solver, and did a quick update to the Pure Java LP Solver Benchmark. Apache Commons Math (ACM) contains an LP solver. Version 3.6.1 of…

LP, QP & MIP on the JVM

If you need to solve mathematical optimisation LP, QP or MIP models without calling native code – running only pure Java code – there are very few options. In fact,…

Java Matrix Benchmark

Late last year (December 2021) new results were published over at the Java Matrix Benchmark web site. ojAlgo performed well, as always, but this time there seemed to be some…

JDK17 Benchmark

Nowadays you can get your JDK from many different sources. In most cases they only differ on license and support, but there are also alternatives with real technical differences. Two…

Pure Java LP Solver Benchmark

First published in October 2021, then updated in February 2022. ojAlgo contains pure Java LP, QP and MIP solvers. That's something very unique. There are very few pure Java alternatives…

HotSpot vs GraalVM CE & EE

With version 19.3 (released 2019-11-19) GraalVM supports Java 11. This benchmark compares the Community Edition (CE) with the Enterprise Edition (EE) and compares them both to a the usual HotSpot…

AdoptOpenJDK HotSpot vs OpenJ9

Eclipse OpenJ9 version 0.17.0 was released 2019-10-18. It is available with AdoptOpenJDK that comes in 2 versions – HotSpot and OpenJ9. Here we benchmark those 2 versions doing some linear…

AdoptOpenJDK v12

In a previous post the two versions of Adopt Open JDK (HotSpot & OpenJ9) were compared doing matrix multiplication using three different pure Java linear algebra libraries. Now, a Java…