[R-sig-Debian] lam vs. openmpi

[Erin Hodgess]

Ok.

You probably know what the next question will be, please:  how do I
uninstall the lam stuff?

thanks,
Erin


On Mon, May 25, 2009 at 3:08 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 24 May 2009 at 23:02, Erin Hodgess wrote:
> | Dear R Debian Users:
> |
> | I wrote a quick C program (eventually to become R code) and compiled it as:
> |
> | mpicc -o greet greet.c
> |
> | So far so good.  Now when I run mpirun, this happens:
> |
> |
> | erin at erin-laptop:~$ mpirun -np 2 greet
> | -----------------------------------------------------------------------------
> | It seems that there is no lamd running on the host erin-laptop.
> |
> | This indicates that the LAM/MPI runtime environment is not operating.
> | The LAM/MPI runtime environment is necessary for the "mpirun" command.
> |
> | Please run the "lamboot" command the start the LAM/MPI runtime
> | environment.  See the LAM/MPI documentation for how to invoke
> | "lamboot" across multiple machines.
> | -----------------------------------------------------------------------------
> |
> |
> | I have both lam and openmpi installed on my Ubuntu 9.04.  What should
> | I do to eliminate the lam issue, please?
>
> Either by uninstalling the lam packages, and/or by calling the Open MPI
> programs directly (which overrides the default values of the alternatives
> system).  I.e.
>
>          mpicc.openmpi                 instead of mpicc
>
>          mpirun.openmpi                instead of mpirun, or just use orterun
>
> But unless you have a reason to use it, I'd just un-install all things lam.
>
> Dirk
>
>
>
> | thanks,
> | Erin
> |
> |
> | --
> | Erin Hodgess
> | Associate Professor
> | Department of Computer and Mathematical Sciences
> | University of Houston - Downtown
> | mailto: erinm.hodgess at gmail.com
> |
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>
> --
> Three out of two people have difficulties with fractions.
>



-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com