[R-sig-Debian] lam vs. openmpi

Erin Hodgess erinm.hodgess at gmail.com
Mon May 25 15:02:51 CEST 2009


Please ignore the last message.  I got it.

thanks,
Erin


On Mon, May 25, 2009 at 7:45 AM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
> 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
>> |
>> | _______________________________________________
>> | R-SIG-Debian mailing list
>> | R-SIG-Debian at r-project.org
>> | https://stat.ethz.ch/mailman/listinfo/r-sig-debian
>>
>> --
>> 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
>



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



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