[gentoo-cluster] Re: eselect-mpi issues

[Justin Bronder]

On 12/06/08 11:28 -0700, Bryan Green wrote:
> Hello,
>
> I'm beginning to give empi/eselect-mpi a try.  Bravo, Justin, for making
> these!

Thanks for trying them out, I'm hoping someone else finds them as useful as I
have.

>
> I've run into one bug in eselect-mpi that effects csh users (a popular
> shell where I work).  There is simply one setenv line that has bash syntax
> rather than csh syntax.  I already submitted a bug: its bug 226105.
> Here is the patch to fix it:
>
> ================================================
> --- files/mpi.eselect-0.0.3     (revision 1137)
> +++ files/mpi.eselect-0.0.3     (working copy)
> @@ -161,7 +161,7 @@
>  setenv PATH "${binpath}"
>   setenv MANPATH "${manpath}"
>    setenv LD_LIBRARY_PATH "${lld}"
>    -setenv ESELECT_MPI_IMP="${1}"
>    +setenv ESELECT_MPI_IMP "${1}"
>     EOF
>
>           echo "Remember to source ${user_ev_sh} or ${user_ev_csh}"
> ================================================

Fixed in eselect-0.0.3-r1.  Also found another mistake when setting PATH for
c shells and fixed that as well.

>
> Also, in the README file, the for loop in step 6 is incorrect:
>
> for i in $(ls ${HOME}/.env.d/*); do
>     source ${HOME}/.env.d/${i}
> done
>
> Results in:
>
> -bash: /home/bgreen/.env.d//home/bgreen/.env.d/mpi.csh: No such file or directory
> -bash: /home/bgreen/.env.d//home/bgreen/.env.d/mpi.sh: No such file or directoryA

Also fixed.  You might also want to check out the doc I've been working on
lately, http://dev.gentoo.org/~jsbronder/empi.xml.  Hopefully it's a little
more up to date.

>
>
> On the system where I'm using empi, I've created files in /etc/profile.d to
> source the user's .env.d files when they log in.  What do you think about
> having the eselect-mpi ebuild install these, so mpi users dont have to do
> that part manually?  They would instead just have to source /etc/profile or
> /etc/csh.login after running 'eselect mpi'.

Love it, I had not even thought of using this mechanism before even though I
should have.  It will also simplify switching from an mpi environment to one
without it.  I'll try to get something checked into the overlay soon,
shouldn't be more than a few days.

>
>
> Here are my versions of the files in /etc/profile.d:
>
> ==============
> mpi-config.sh
> ==============
> if [ -d ${HOME}/.env.d ]; then
>     for i in ${HOME}/.env.d/*.sh ; do
>         . "${i}"
>     done
>     unset i
> fi
>
> ==============
> mpi-config.csh
> ==============
> if ( -d ${HOME}/.env.d ) then
>     set nonomatch
>     foreach i ( ${HOME}/.env.d/*.csh )
>         source ${i}
>     end
>     unset i nonomatch
> endif
>
> ==============
>
> -bryan

Thanks again for testing and your comments, they're much appreciated.

-- 
Justin Bronder