Re: [bgl-discuss] File descriptor limits?

[Robert Olson <olson@xxxxxxxxxxx>]

On Mar 14, 2006, at 12:34 PM, Kamil Iskra wrote:

> On Tue, Mar 14, 2006 at 11:30:22 -0600, Robert Olson wrote:
>
> > The mpiBLAST code is opening up a bunch of files on the nodes, and is
> > apparently running into a 100 file descriptor limit.
>
> Hmmm...  Looks like there is a per-process limit on the compute  
> node kernel
> side.
>
> > Is there a way to increase this?
>
> Unlikely.  The compute node kernel is not tunable...

OK, I'll have to keep poking at the guts of this then.

> > > What are the user relevant improvements in BG/L software V1R1M0 ?
> > >
> > > Increased file descriptor limit in ciodb to 2048.
>
> That's unrelated.  ciodb is a management process running on the  
> service
> node.  It has nothing to do with files open by MPI applications.

Bummer :-).

thanks,
--bob

- --------------------------------------------------------------------
To add or remove yourself from this mailing list, use the 'notifyme'
command on any BGL machine. To remove: notifyme -n, to add: notifyme -y.