[R-sig-hpc] care to send me some big working example R on multiprocessor systems?

Melwin win at comets.de
Wed Mar 3 08:36:38 CET 2010

Hi Paul,
under http://www.rforge.net/ppso/ you'll find our PPSO package which is  
intended for optimization of functions (search for minima) using Particle  
Swarm Optimization or Dynamically Dimensioned Search.
Since it can be used in parallel mode using Rmpi (see optim_ppso_robust or  
optim_pdds_robust), and because the example problems given there are  
self-contained and can be inflated easily (simply increase number of  
parameters in sample functions or tighten abortion criteria), these may be  
of interest to you. If you need help, feel free to contact me.



Am 02.03.2010, 22:51 Uhr, schrieb Paul Johnson <pauljohn32 at gmail.com>:

> For stress testing on a new cluster, I'm trying to collect a big-ish R
> programs that use multicore and/or Rmpi (or other R MPI packages).
> Has anybody started a collection of "self contained working examples"?
>  If nobody has such a collection, please consider forwarding them to
> me and I'll post them on a web site.  We'll be testing the effect of
> replacing the ordinary BLAS with gotoblas2 (multithreaded) and
> comparing various MPI libraries.  It is important for me to get a
> sample of R usages, because my MPI experience is limited and I only
> use a little bit of it.
> If you mail the examples to me directly it is OK, or
> r-sig-hpc at r-project.org might be a good target as well.
> pj


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