R > r-sig-hpc > February 2012

Dear HPC People: I'm not sure if R GPU has its own sig, so I thought I'd start here. I'm trying to install gputools on a Debian (squeeze) and I keep getting the error: /usr/bin/ld cannot find -lR Has ...

Hi All, I have a question about R parallel computing by using snowfall. How can I set the seeds on parallel workers to get the same result as sequential mode? For example: [1] -0.5179967 -1.0807196 ...

Hi everyone! Here is an opinion question please: when using R on a cluster, what is the best way to start please? I learned a little bit a couple of years ago but have forgotten most of it. Thanks, ...

Hi, First of all, my environment is : 64 bit Windows 7 Home basic with firewall off and the IP address 192.168.72.1 , R 2.14.1 64 bit, snow0.3.8 and doSNOW1.0.5 The first test senario works: cl <- ...

R-sig-hpc'ers: I've started running R on a large cluster at my university, which uses the IBM GPFS parallel file system. I'm wondering if there is any support within R for parallel writes to a single ...

Hi again! Happy Friday! If I use mpi.spawn.Rslaves(nslaves=4), it spawns 4 slaves on the same node. Is there a way to access the machines file from there, please? Thanks, Erin Erin M. Hodgess, Ph.D ...

Hi everyone! Does anyone have any good examples of Rmpi use, please? Now that I have it going a little bit on my baby cluster, I would like to try to enhance it. thanks, Erin Erin M. Hodgess, PhD ...

Hi, I am using 'snow' package on a Cray High Performance Computing System. I got this error message '[NID 00030] 2012-02-27 01:48:28 Apid 304874: Portals failed to handle copy-on-write. Killing ...

Hi, I am trying to use 'snowfall' on a supercomputer SUSE Linux shared-memory system. However, I got this error message: R Version: R version 2.12.2 (2011-02-25) snowfall 1.84 initialized (using snow ...

Dear all, I am using the SNOW library to compute a function. I start the cluster through the command: cl <- makeCluster(6, "SOCK") and then program a function sll0 and execute the function on each ...

Hi again. You probably know this, but to run from the machine file, you can use the following: "mpiexec -machinefile ~/machines R CMD BATCH test1.R" for batch And "mpiexec -machinefile ~/machines R ...

Hi R Sig HPC People: Does anyone have an example of using mpiexec with a machine file with a cluster, please? We don't have qsub but we have orterun. Thanks so much, Sincerely, Erin Erin M. Hodgess, ...

I've been working on R mpi programs for a couple of years, and, like everybody else on the bleeding edge, I see a lot of weird crashes and such One problem that really concerns me is user error in R ...