Hi Justin, I applied the fixes for this particular deadlock to the 1.3 code base late last week, see ticket #1725: https://svn.open-mpi.org/trac/ompi/ticket/1725
This should fix the described problem, but I personally have not tested to see if the deadlock in question is now gone. Everyone should give thanks to George for his efforts in tracking down the problem and finding a solution. -- Tim Mattox, the v1.3 gatekeeper On Mon, Jan 12, 2009 at 12:46 PM, Justin <luitj...@cs.utah.edu> wrote: > Hi, has this deadlock been fixed in the 1.3 source yet? > > Thanks, > > Justin > > > Jeff Squyres wrote: >> >> On Dec 11, 2008, at 5:30 PM, Justin wrote: >> >>> The more I look at this bug the more I'm convinced it is with openMPI and >>> not our code. Here is why: Our code generates a communication/execution >>> schedule. At each timestep this schedule is executed and all communication >>> and execution is performed. Our problem is AMR which means the >>> communication schedule may change from time to time. In this case the >>> schedule has not changed in many timesteps meaning the same communication >>> schedule is being used as the last X (x being around 20 in this case) >>> timesteps. >>> Our code does have a very large communication problem. I have been able >>> to reduce the hang down to 16 processors and it seems to me the hang occurs >>> when he have lots of work per processor. Meaning if I add more processors >>> it may not hang but reducing processors makes it more likely to hang. >>> What is the status on the fix for this particular freelist deadlock? >> >> >> George is actively working on it because it is the "last" issue blocking >> us from releasing v1.3. I fear that if he doesn't get it fixed by tonight, >> we'll have to push v1.3 to next year (see >> http://www.open-mpi.org/community/lists/devel/2008/12/5029.php and >> http://www.open-mpi.org/community/lists/users/2008/12/7499.php). >> > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Tim Mattox, Ph.D. - http://homepage.mac.com/tmattox/ tmat...@gmail.com || timat...@open-mpi.org I'm a bright... http://www.the-brights.net/
