[R] Problem installing Rmpi with Open MPI

[Dirk Eddelbuettel]

On 29 August 2012 at 20:07, Linh Tran wrote:
| Thank you for the advice. I tried using the command, and it still 
| wouldn't load.
| 
| I tried uninstalling all of the MPI interfaces, reinstalled openmpi 
| using the "--enabled-shared --disable-dlopen" command, and Rmpi was able 
| to install sucessfully inside R.

I just spent some time going over this, along with Prof Hao, the author of
Rmpi.  You may simply have been missing the openmpi-bin package which
provides tools like orterun -- Open MPI now needs this at startup.  This may
get added to configure tests in the future to alert users.

With this openmpi-bin package installed, I could easily install Rmpi on
Debian and Ubuntu using the distro's Open MPI packages. No need for local
Open MPI builds.  Also note this post on the Open MPI list:

   http://www.open-mpi.org/community/lists/devel/2012/04/10840.php

Static builds may lead to loss of resources at runtime as you may have
multiple copies running.
 
| Thank you to Prof Ripley for pointing that out! I think it was shared 
| and dlopen options that kept preventing me from succeeding.

I believe this advise to be incorrect. We have been using dynamically linked
builds of Open MPI for several years on Debian with good success. I was
involved in an overhaul of Debian's Open MPI packages around 2006/2007; the
package has since been very well maintained by others.

Dirk
 
| On 08/29/2012 01:40 PM, Dirk Eddelbuettel wrote:
| > On 29 August 2012 at 11:37, Linh Tran wrote:
| > | I've spent a few days trying to install Rmpi with no luck. I originally
| > | tried using mpich, moved on to mpich2, and then to openmpi. I've gotten
| > | the furthest with openmpi, though am still running into this problem and
| > | can't figure it out. Can someone help!? Thanks so much in advanced.
| > |
| > | I'm using an HP Envy laptop with Ubuntu 12.04. Output is below, with the
| > | error at the bottom.
| >
| > I suggest you do
| >
| >     sudo apt-get install r-cran-rmpi
| >
| > which installs the prebuild Rmpi as well as the Open MPI libary it depends upon.
| >
| > Dirk
| >
| 

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com