Current State of Java for HPC

At the last JavaOne I did a walk-on talk during the AMD keynote where I talked about how incredible HotSpot's performance had become - beating the best C compilers. I ended my talk with a joking comment that "the next target is Fortran". Afterwards, Denis Caromel of Inria came up to me and said "you're already there". He and some colleges had been working on some comparisons between Java and Fortran for HPC. Their final report Current State of Java for HPC has been made available as a Tech Report and makes pretty interesting reading. There are a lot of HPC micro benchmarks in it which look great. Thanks!
Comments:

Congratulations.

Java is quite like this stable, faithful, loving wife.
I've been seduced by the likes of Ruby, only to come back to my home, Java.

Keep up the good work.

Posted by Mayuresh Kathe on September 03, 2008 at 11:54 PM PDT #

You might be interested in SASA, a project to port the DIERCKX library of Fortran subroutines for calculating smoothing splines - without tuning the Java code, I'm see roughly 10% improvement against the original GCC-compiled fortran.

Roberto

Posted by Roberto Tyley on September 04, 2008 at 01:33 AM PDT #

Now can we get the same badass performance for jvm-based languages? :) All this v8 talk is making me antsy!

Congrats James and the Java team!

Posted by Ivan on September 04, 2008 at 02:55 AM PDT #

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