Hi Glen,
Thanks for the info. Will I need to reboot all the nodes with this
modification or is there something in OSX for updating ?
Don
Glen Beane wrote:
> Hi Don, Hello from UMaine - long time no see
>
> The Mac has some limits that you'll want to increase, so give this a
> shot and let me know how it works out.
>
> add this to /etc/rc
>
> ulimit -Hn 2048
> ulimit -Sn 2048
> ulimit -Hu 2048
> ulimit -Su 2048
>
> add this to /System/Library/StartupItems/IPServices/IPServices *just
> before* the "xinetd -inetd_compat -pidfile /var/run/xinetd.pid" line
>
> ulimit -Hn 2048
> ulimit -Sn 2048
> ulimit -Hu 2048
> ulimit -Su 2048
>
>
> add this to /etc/sysctl.conf
>
> kern.maxfilesperproc=2048
> kern.maxprocperuid=2048
>
>
>
> On Nov 19, 2004, at 6:27 AM, Don Kenzakowski wrote:
>
>> I am using LAM v7.1.1 on MacOSX using GiGE for interconnect.
>> I have available 128 nodes, to which I have
>> successfully lambooted. Running lamnodes, all is fine and as
>> expected. Running a
>> sample case utilizing only up to 76 of the 128 available nodes in my
>> lam environment,
>> all again is fine as my exec starts up very quickly and completes.
>> However, if I run a case beyond 76 nodes, my executable hangs without
>> even getting past MPI_INIT.
>> After several minutes, I eventually have to kill the job and do a
>> lamhalt.
>>
>>
>> Q: Is there anything I need to set for running lamboot / mpirun with
>> a relatively
>> large number of nodes ?
>>
>> Sincerely,
>> Don Kenzakowski
>>
>>
>> _______________________________________________
>> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
>>
>
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