Jan, I would advise not using the PSO module. I don't trust it yet. It's next on our list of revisions and fixes but that's not going to get underway for another week or two at the *earliest*. If you absolutely need a good PSO framework, I strongly suggest this one: http://www.particleswarm.info/standard_pso_2007.c This is a benchmark pso implementation. Unfortunately it's not in C. Alternatively you could have a hand in examining and revising the PSO code in ECJ :-) Sean On Jul 30, 2010, at 1:23 PM, Jan-Hendrik Fischer wrote: > On Wed, 4 Mar 2009 09:51:17 -0500, Sean Luke <[log in to unmask]> wrote: > >> A quick note on PSO implementation in ECJ: it's got lots and lots of >> problems. Don't use it. I wrote a new version of PSO that actually >> works while at FOGA, but accidentally deleted it yesterday, along >> with >> other changes, before committing them. :-( :-( I'm fairly down >> about >> that. Until I get that rewritten, I suggest avoiding it. > > > Hey Sean, > > is that info up-to-date? I didn't find much in the changelogs on PSO > and since > my grades for this project are relying on the results I get from > ECJ, it's > important for me to choose the right PSO-framework. :-) Our supervisor > recommended ECJ, my teammates, who implement the genetic programming > stuff, are quite pleased, but I can't find much introductory > material on PSO. > > Would you recommend using ECJ-PSO for a hard MLCLSP? Or is it just not > ready? > > Would be great if you could help me! > > Sincerely > Jan-Hendrik >