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Subject: Re: [OMPI users] Open MPI and env. variables (LD_LIBRARY_PATH and PATH) - complete and utter Open MPI / Linux noob
From: Prasadcse Perera (prasadcse0_at_[hidden])
Date: 2009-08-02 08:07:09


Hi,
common bashrc meant if the /home is network mounted so ignore that I guess.
Have you tried adding
 . $HOME/OpenFOAM/OpenFOAM-1.5.x/etc/bashrc to your ~/.bashrc on nodes ?
This will append the configurations you need from the bashrc file located
inside the directory.

Prasad.

On Sat, Aug 1, 2009 at 11:09 PM, Tomislav Maric <tomislav.maric_at_[hidden]>wrote:

> Prasadcse Perera wrote:
> > Hi,
> > One workaround is you can define PATH and LD_LIBRARY_PATH in your common
> > .bashrc and have a resembling paths of installation in two nodes. This
> > works for me nicely with my three node installation :).
> >
>
> Thank you very much for the advice. Actually I'm running OpenFOAM (read:
> a program parallelized to run with Open MPI) from SLAX Live DVD, so the
> installation paths are identical, as well as everything else.
>
> I've added commands that set enviromental variables in .bashrc on both
> nodes, but you mention "common .bashrc". Common in what way? I'm sorry
> for newbish question, again, I'm supposed to be a Mechanical Engineer.
> :))))
>
> OpenFOAM toolkit carries a separate directory for third-party support
> software. In this directory there are programs for postprocessing
> simulation results and analyze data and Open MPI. Therefore, in my case,
> Open MPI is built in a separate directory and the build is automated.
>
> After the build of both programs, there is a special bashrc located in
>
> some/path/OpenFOAM/OpenFOAM-1.5-dev/etc/
>
> that sets all the variables needed to use Open FOAM, such as
> FOAM_TUTORIALS (where are the tutorials), FOAM_RUN (where is the working
> dir), WM_COMPILER (what compiler to use), etc. This bashrc also sets
> LD_LIBRARY_PATH and PATH so that locally installed Open MPI can be found.
>
> I've tried this installation on the Live DVD on my laptop with two
> cores, decomposed the case and ran the simulation in parallel without a
> problem.
>
> I hope this information is more helpful.
>
> Best regards,
> Tomislav
>
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