Marco Verlato wrote:
> Kostas Georgakopoulos wrote:
>
>> And the normal jobs (non mpi jobs) will still work? because Charles
>> Loomis made that point exactly: if you change the configuration to
>> pbs and you *don't*
>> have shared home directories then all jobs will fail.
>>
>
> In both cases the lcgpbs jobmanager with non-shared home directories
> is used.
> The INFN solution tries to simulate shared home directories scp-ing
> all job subdirectory from the WN where the job is executed to all the
> others in the set choosen for the job. Of course this approach has
> some limitations because the home directories are not really shared,
> so only a subset of MPI applications (like the one in the example
> shown at http://grid-it.cnaf.infn.it/index.php?mpihowto&type=1) will
> work.
>
Thanks again everybody i finally got it to work!
Two final questions:
What is the subset of mpi jobs that run with the
non-shared-home-directories scheme? If we wanted to have full support
for mpi jobs shoud we
consider switching to shared home directories?
and how can we now publish the fact that our site supports mpi so others
can use it?
Best regards,
Kostas Georgakopoulos - University of Macedonia
|