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List:       ess-help
Subject:    Re: [ESS] Connect xemacs/ess to an existing R process to use Rmpi?
From:       "Adam Wilson" <adam.wilson () uconn ! edu>
Date:       2007-12-19 18:58:25
Message-ID: 40f373210712191058r41ea8963u7e758249423d2ab0 () mail ! gmail ! com
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Greetings,

Thanks for the advice.  So I can start the mpi-enabled R from eshell, but
when I type M-x ess-remote r, it fails with the message, "No ESS process is
associated with this buffer now."  R continues to run, but ess does not
recognize it.

Also, is it possible to incorporate these steps into my init.el file so it
will start the mpi-enabled R every time?

Thanks again for any advice,

Adam

On Dec 19, 2007 5:44 AM, Ramon Diaz-Uriarte <rdiaz02@gmail.com> wrote:

> Dear Adam,
>
> This might not be of much use, but just in case. Under GNU/Linux, and
> with LAM/MPI everything works as usual. I open a shell from emacs,
> start the LAM/MPI universe (lamboot), and then M-X R. And then work as
> usual (library(Rmpi); mpi.spawn.Rslaves(...); etc, etc).
>
> Best,
>
> R.
>
> On Dec 18, 2007 11:43 PM, Adam Wilson <adam.wilson@uconn.edu> wrote:
> > Greetings all,
> >
> > I am working with the Rmpi package (
> > http://cran.r-project.org/src/contrib/Descriptions/Rmpi.html) to take
> > advantage of my multi-core processor to run parallel MCMC chains.  To
> use
> > the rmpi package you need to start the R process from the MPICH2 (
> > http://www.mcs.anl.gov/research/projects/mpich2/) utility.  If you just
> open
> > Rgui or Rterm.exe, Rmpi will not function.  See
> > http://www.stats.uwo.ca/faculty/yu/Rmpi/ for more details.
> >
> > Typically, starting MPICH2 and R is done with a shortcut to:
> > "C:\Program Files (x86)\MPICH2\bin\mpiexec.exe" -n 1 -localhost
> -noprompt
> > "C:\Program Files (x86)\R\R-2.6.1\bin\Rgui.exe"
> >
> > My question: is there a way to access a MPI-enabled Rterm process from
> > xemacs/ess?  I imagine two possibilities:
> > 1) connect xemacs/ess to an existing R process that I've started with
> > MPICH2, or
> > 2) direct xemacs/ess to start MPICH2 (using some form of the above
> shortcut)
> > and connect to the resulting R process.
> >
> > I've not been successful in finding any information on either of these
> > options in the archives or user manual.
> >
> > Details on my system are below.
> >
> > Thanks for any help,
> >
> > Adam
> >
> >
> > ###################################
> >
> > I am running R 2.6.1 in 64-bit Windows XP SP2 on a quad-core intel xeon
> > 3.0GHz processor.
> > XEmacs v21.4.21
> > Ess v5.3.6
> >
> > > Sys.info()
> >                       sysname                       release
> >                     "Windows"                      "NT 5.2"
> >                       version
> > "(build 3790) Service Pack 2"
> >                       machine
> >                         "x86"
> >
> >
> > --
> > Adam Wilson
> > http://hydrodictyon.eeb.uconn.edu/people/wilson/
> > Department of Ecology and Evolutionary Biology
> > BioPharm 223
> > University of Connecticut
> > Tel: 860.486.4157
> > Adam.Wilson@UConn.edu
> >
> >         [[alternative HTML version deleted]]
>  >
> > ______________________________________________
> > ESS-help@stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/ess-help
> >
>
>
>
> --
> Ramon Diaz-Uriarte
> Statistical Computing Team
> Structural Biology and Biocomputing Programme
> Spanish National Cancer Centre (CNIO)
> http://ligarto.org/rdiaz
>



-- 
Adam Wilson
http://hydrodictyon.eeb.uconn.edu/people/wilson/
Department of Ecology and Evolutionary Biology
BioPharm 223
University of Connecticut
Tel: 860.486.4157
Adam.Wilson@UConn.edu

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