Re: [gentoo-cluster] Re: eselect-mpi issues

[Eric Thibodeau]

Alexey Shvetsov wrote:
> hi all!
>
> May be it will be better if we can choose combinations mpi_imp/compiler
> for example
> mpi-openmpi-gcc
> mpi-openmpi-intel
> and so on
>
> for now it can be done manualy specifing CC, Fc and so on env
> may be it will be better if it will be done from empi?
>
You might want to go read: http://bugs.gentoo.org/show_bug.cgi?id=44132

> 2008/6/16 Eric Thibodeau <kyron@××××××××.com>:
>
>> Justin Bronder wrote:
>>
>> 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.
>>
>>
>> It is planned to be part of the Gentoo Clustering LiveCD ;)
>>
>>
>>
>> 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.
>>
>>
>> Have to remember that one ;)
>>
>>
>>
>> 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.<
>>
>>
>> Keep us posted because I will definitely  want that version!
>>
>>
>>
>> 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.
>>
>>
>> Yeah, thanks you both, multi-mpi-on-1-system has always plagued me too ;)
>>
>>
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