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
>
>
> _______________________________________________
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>
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