Thanks for the feedback. Rui
2010/6/29 Changsheng Jiang <jiangzuo...@gmail.com> > I am a learner, too, please correct me. > > Changsheng Jiang > > > On Tue, Jun 29, 2010 at 15:44, 王睿 <wangray...@gmail.com> wrote: > >> Hi, all >> >> I'm now learning MPI, but I'm not clear with the following questions, >> >> 1, suppose a MPI program involves several nodes, if one node dead, will >> the program terminate? >> > yes. If you program killed in one node, all another nodes will note that > and abort. But if you server halt, or, you killed the parent of your > program(which luanched by mpi runtime) first, then another nodes will wait a > very long time before exit. > >> >> 2, Is there any possibility to extend or shrink the size of MPI >> communicator size? If so, we can use spare node to replace the dead node? >> > I think no. the message passing model prevent you doing this. the > distributed program status depends on the dead nodes. > >> >> Thanks in advance and your reply will be highly appreciated! >> >> Best Regards, >> Rui Wang >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Rui Wang Institute of Computing Technology, CAS, Beijing, P.R.China
