[Beowulf] An annoying MPI problem
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Joe Landman landman at scalableinformatics.comWed Jul 9 18:22:27 PDT 2008
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Chris Samuel wrote: > ----- "Bruno Coutinho" <coutinho at dcc.ufmg.br> wrote: > >> Try disabling shared memory only. >> Open MPI shared memory buffer is limited and it enters deadlock if >> you overflow it. >> As Open MPI uses busy wait, it appears as a livelock. > > Interesting - is it possible to disable that at runtime > with one of its billions of configuration options ? -mca btl ^sm > > cheers, > Chris -- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: landman at scalableinformatics.com web : http://www.scalableinformatics.com http://jackrabbit.scalableinformatics.com phone: +1 734 786 8423 fax : +1 866 888 3112 cell : +1 734 612 4615
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