[R] changing memory limits to speed up lsoda

Naji nassar at noos.fr
Wed Oct 26 23:35:53 CEST 2005


Martin,


For my simulations (same hardware with less memory).
- Optimize the code : using Narray, avoiding loops
- Installed distributed computations (PVM & RPVM tools are very easy to use,
many thanks to Simon Urbanek for his help)

Hope this will help
Best
Naji
Le 26/10/05 16:43, « Martin Henry H. Stevens » <HStevens at muohio.edu> a
écrit :

> Hi All,
> I am running R 2.2.0 on Mac OS 10.4.2, dual G5 processors with 8 Gig
> RAM.
> I am running a simulation with lsoda that requires ~378 s to complete
> one set of time intervals. I need to optimize the parameters, and so
> need to considerably speed up the simulation.
> I have tried to figure out how to change the appropriate memory
> allocation and have search R help and Introductory information and
> the archives, but connot figure out how to allocate more to the right
> place.
> I would greatly appreciate any pointers or tips or leads.
> Thank you,
> Hank Stevens
> 
> 
> Dr. Martin Henry H. Stevens, Assistant Professor
> 338 Pearson Hall
> Botany Department
> Miami University
> Oxford, OH 45056
> 
> Office: (513) 529-4206
> Lab: (513) 529-4262
> FAX: (513) 529-4243
> http://www.cas.muohio.edu/~stevenmh/
> http://www.muohio.edu/ecology/
> http://www.muohio.edu/botany/
> "E Pluribus Unum"
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>




More information about the R-help mailing list