Re: [bgl-discuss] File descriptor limits?

[Robert Olson <olson@xxxxxxxxxxx>]

On Mar 14, 2006, at 12:49 PM, Robert Latham wrote:

> On Tue, Mar 14, 2006 at 11:30:22AM -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.
>
> Hi Bob
>
> Is this the same mpiBLAST as mpiblast.lanl.gov ?  if so you may be
> interested in a patch to "allow mpiBLAST to run on IBM BlueGene"
> (http://mpiblast.lanl.gov/Downloads.Patches.html)


Yup - I am running with that applied. I think it was mainly  
configuration fixes.

> More promising is mpiBLAST-pio, which at a quick glance, looks like a
> mpiBLAST that makes use of mpi-io to coordinate client writes.  I've
> never played with it, but that sounds like a more correct solution to
> your problem.

Aha, interesting. I'll have a look. (though this is the database-read  
side, not the client-write side, but I'm sure anything I/O related  
will help).

--bob

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