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Subject: Re: [MTT users] [MTT bugs] [MTT] #212: Generic network lockingserver
From: Ethan Mallove (ethan.mallove_at_[hidden])
Date: 2009-11-09 10:00:26

On Sat, Nov/07/2009 04:15:42PM, Jeff Squyres wrote:
> On Nov 6, 2009, at 5:18 PM, Ethan Mallove wrote:
>> I'm running multiple MTT clients out of the same scratch directory
>> using SGE. I'm running into race conditions between the multiple
>> clients, where one client is overwriting another's data in the .dump
>> files - which is a Very Bad Thing(tm). I'm running the
>> client/mtt-lock-server, and I've added the corresponding [Lock]
>> section in my INI file. Will my MTT clients now not interfere with
>> each other's .dump files? I'm skeptical of this because I don't see,
>> e.g., Lock() calls in SaveRuns(). How do I make my .dump files safe?
> Err... perhaps this part wasn't tested well...?
> I'm afraid it's been forever since I've looked at this code and I'm gearing
> up to leave for the Forum on Tuesday and then staying on for SC09, so it's
> quite likely that you'll be able to look at this in more detail before I
> will. Sorry to pass the buck; just trying to be realistic... :-(

Doh! Hopefully I can pick up some clues in ompi-tests/trunk/cisco/mtt.


> --
> Jeff Squyres
> jsquyres_at_[hidden]
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