[GE users] Rizing more than 1024 FD on SGE node (was Re: [GE users] ulimit -n and SGE)

Rayson Ho rayrayson at gmail.com
Thu Sep 20 23:41:21 BST 2007


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Actually, I believe not that many jobs need over 1024 file descriptors.

Can you login as root, and raise the fd limit, and start execd by hand
from that shell?? Then let SGE schedule a job that needs to have more
than 1024 fds to that host, and see how things go...

Rayson




On 9/20/07, Xavier Beaudouin <kiwi at oav.net> wrote:
> Hello,
>
> Seems that nobody uses more than 1024 FD on a SGE cluster....
>
> Any idea on to raise that ? ... or do I have to hunt into code ?
>
> /Xavier
>
> Le 18 sept. 07 ? 12:11, Xavier Beaudouin a écrit :
>
> > Hello,
> >
> > Maybe there is some hidden stuff somewhere but I cannot find where
> > I can
> >  bypass the 1024 fd on a job running on SGE.
> >
> > Systems limits are 2048, but ulimit -n on a job running is still
> > limited
> > to 1024...
> >
> > I have browsed the differents options, but still cannot find a good
> > place to find this limit... any hint.
> >
> > Thanks
> > /Xavier
> >
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