[R] torque/psb snow library

Hello all; I'm trying to execute parallel jobs trough library snow on a cluster built through torque/PSB. I'm succesfully obtaining the cluster with: system(cat $PBS_NODEFILE cluster.txt) mycluster - scan(file=cluster.txt,what=character) cl - makeSOCKcluster(mycluster) The only problem, at the

Re: [R] torque/psb snow library

Hi Javier, there is a new mailing list for R and HPC: [EMAIL PROTECTED] This is probably a better list for your question. I never tried torque with socket. We use torque and mpi or pvm (and R) and it is working very well. Why do you use socket as communication layer? MPI was especially developed

Re: [R] torque/psb snow library

Thanks you! I'll look at this new list! Well, I'm not the system administrator, and my installation of Rmpi and/or pvm libraries for R crashes. As this is the first time I parallelize some jobs, snow appealed as a first approach because 1) it compiled correctly and 2) the use of the library is

Re: [R] torque/psb snow library

You may or may not see speed substantial improvements using Rmpi with (or without) snow but you might -- depends on how the cluster is configured, what version of MPI, etc. In my experience using snow with sockets, pvm, or LAM/MPI for typical computations running an a multi-core machine vs