you should reboot all the nodes.
On Nov 19, 2004, at 12:54 PM, Don Kenzakowski wrote:
> 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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>
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