Vishwanath, Can you point me to the two_phase module code? (I just wanted to make sure that we are looking at the same problem.)
Rayson ================================================== Open Grid Scheduler - The Official Open Source Grid Engine http://gridscheduler.sourceforge.net/ On Thu, Nov 8, 2012 at 1:58 PM, Vishwanath Venkatesan <venka...@cs.uh.edu> wrote: > I just checked the code for testing 2GB limitation in OMPIO. The code works > with OMPIO's " fcoll dynamic" module. Although it does have the same 2GB > limitation with the two_phase module which is based on ROMIO's > implementation and the static module. I have a fix for both these modules I > will commit them to trunk shortly. > > > Thanks > Vish > > Vishwanath Venkatesan > Graduate Research Assistant > Parallel Software Technologies Lab > Department of Computer Science > University of Houston > TX, USA > www.cs.uh.edu/~venkates > > > On Nov 7, 2012, at 3:47 AM, Ralph Castain wrote: > > Hi Rayson > > We take snapshots from time to time. We debated whether or not to update > again for the 1.7 release, but ultimately decided not to do so - IIRC, none > of our developers had the time. > > If you are interested and willing to do the update, and perhaps look at > removing the limit, that is fine with me! You might check to see if the > latest ROMIO can go past 2GB - could be that an update is all that is > required. > > Alternatively, you might check with Edgar Gabriel about the ompio component > and see if it either supports > 2GB sizes or can also be extended to do so. > Might be that a simple change to select that module instead of ROMIO would > meet the need. > > Appreciate your interest in contributing! > Ralph > > > On Tue, Nov 6, 2012 at 11:55 AM, Rayson Ho <raysonlo...@gmail.com> wrote: >> >> How is the ROMIO code in Open MPI developed & maintained? Do Open MPI >> releases take snapshots of the ROMIO code from time to time from the >> ROMIO project, or was the ROMIO code forked a while ago and maintained >> separately in Open MPI?? >> >> I would like to fix the 2GB limit in the ROMIO code... and that's why >> I am asking! :-D >> >> Rayson >> >> ================================================== >> Open Grid Scheduler - The Official Open Source Grid Engine >> http://gridscheduler.sourceforge.net/ >> >> >> On Thu, Nov 1, 2012 at 6:21 PM, Richard Shaw <jr...@cita.utoronto.ca> >> wrote: >> > Hi Rayson, >> > >> > Just seen this. >> > >> > In the end we've worked around it, by creating successive views of the >> > file >> > that are all else than 2GB and then offsetting them to eventually read >> > in >> > everything. It's a bit of a pain to keep track of, but it works at the >> > moment. >> > >> > I was intending on following your hints and trying to fix the bug >> > myself, >> > but I've been short on time so haven't gotten around to it yet. >> > >> > Richard >> > >> > On Saturday, 20 October, 2012 at 10:12 AM, Rayson Ho wrote: >> > >> > Hi Eric, >> > >> > Sounds like it's also related to this problem reported by Scinet back in >> > July: >> > >> > http://www.open-mpi.org/community/lists/users/2012/07/19762.php >> > >> > And I think I found the issue, but I still have not followed up with >> > the ROMIO guys yet. And I was not sure if Scinet was waiting for the >> > fix or not - next time I visit U of Toronto, I will see if I can visit >> > the Scinet office and meet with the Scinet guys! >> > >> > >> > >> > >> > _______________________________________________ >> > users mailing list >> > us...@open-mpi.org >> > http://www.open-mpi.org/mailman/listinfo.cgi/users >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel
