[R-sig-hpc] mpi.spawn.Rslaves

[Ross Boylan]

As other messages have indicated, this may not work even if properly
setup.  But it sounds as if you don't have things setup for MPI, which
needs passwordless logins to all systems (including localhost, I think).

Ross Boylan
On Thu, 2009-09-17 at 17:48 -0500, Hodgess, Erin wrote:
> Hi HPC R People:
> 
> I'm having some trouble with Rmpi and spawning slaves.
> 
> I'm using Ubuntu 9.0.4.
> 
> Any suggestions would be much appreciated.
> 
> 
> erin at erin-laptop:~$ R
> 
> R version 2.9.2 (2009-08-24)
> Copyright (C) 2009 The R Foundation for Statistical Computing
> ISBN 3-900051-07-0
> 
> R is free software and comes with ABSOLUTELY NO WARRANTY.
> You are welcome to redistribute it under certain conditions.
> Type 'license()' or 'licence()' for distribution details.
> 
>   Natural language support but running in an English locale
> 
> R is a collaborative project with many contributors.
> Type 'contributors()' for more information and
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> Type 'demo()' for some demos, 'help()' for on-line help, or
> 'help.start()' for an HTML browser interface to help.
> Type 'q()' to quit R.
> 
> > library(Rmpi)
> > mpi.spawn.Rslaves(nslaves=2)
> ssh: connect to host erin-laptop port 22: Connection refused
> --------------------------------------------------------------------------
> A daemon (pid 6484) died unexpectedly with status 255 while attempting
> to launch so we are aborting.
> 
> There may be more information reported by the environment (see above).
> 
> This may be because the daemon was unable to find all the needed shared
> libraries on the remote node. You may set your LD_LIBRARY_PATH to have the
> location of the shared libraries on the remote nodes and this will
> automatically be forwarded to the remote nodes.
> --------------------------------------------------------------------------
> [erin-laptop:06473] [[59985,1],0] routed:binomial: Connection to lifeline [[59985,0],0] lost
> erin at erin-laptop:~$ 
> 
> 
> Thanks,
> Sincerely,
> Erin
> 
> 
> Erin M. Hodgess, PhD
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: hodgesse at uhd.edu
> 
> 
> 
> 
> 
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