Hello, There was a bug in the use of hostfiles when a username is supplied which has been fixed in OpenMPI v1.4.2. I have just installed the v1.5 and the bug seems to come out again : only the first username provided in the machinefile is taken into account.
See mails below for the history. My configuration : OpenMPI 1.5 Linux Mandriva 2008 x86_64 and Linux RHE x86_64 machinefile example : or985966@is209898 slots=1 realtime@is206022 slots=8 realtime@is206025 slots=8 Best regards, Olivier ---------- Forwarded message ---------- From: Ralph Castain <r...@open-mpi.org> List-Post: users@lists.open-mpi.org Date: 2010/3/11 Subject: Re: [OMPI users] OPenMpi: How to specify login name in machinefile passed to mpirun To: Open MPI Users <us...@open-mpi.org> Yeah, it was a bug in the parser - fix scheduled for 1.4.2 release. Thanks! Ralph On Mar 11, 2010, at 4:32 AM, Olivier Riff wrote: Hello Ralph, Thanks for you quick reply. Sorry I did not mention the version : it is the v1.4 (which indeed is not the very last one). I will appreciate if you could make a short test. Thanks and Regards, Olivier 2010/3/10 Ralph Castain <r...@open-mpi.org> > Probably a bug - I don't recall if/when anyone actually tested that code > path. I'll have a look...probably in the hostfile parser. > > What version are you using? > > On Mar 10, 2010, at 8:26 AM, Olivier Riff wrote: > > Oops sorry I made the test too fast: it still does not work properly with > several logins: > > I start on user1's machine: > mpirun -np 2 --machinefile machinefile.txt MyProgram > > with machinefile: > user1@machine1 slots=1 > user2@machine2 slots=1 > > and I got : > user1@machine2 password prompt ?! (there is no user1 account on > machine2...) > > My problem is still open... why is there a connection attempt to machine2 > with user1 ... > Has somebody an explanation ? > > Thanks, > > Olivier > > > 2010/3/10 Olivier Riff <olir...@googlemail.com> > >> OK, it works now thanks. I forgot to add the slots information in the >> machinefile. >> >> Cheers, >> >> Olivier >> >> >> >> 2010/3/10 Ralph Castain <r...@open-mpi.org> >> >> It is the exact same syntax inside of the machinefile: >>> >>> user1@machine1 slots=4 >>> user2@machine2 slots=3 >>> .... >>> >>> >>> On Mar 10, 2010, at 5:41 AM, Olivier Riff wrote: >>> >>> > Hello, >>> > >>> > I am using openmpi on several machines which have different user >>> accounts and I cannot find a way to specify the login for each machine in >>> the machinefile passed to mpirun. >>> > The only solution I found is to use the -host argument of mpirun, such >>> as: >>> > mpirun -np 2 --host user1@machine1,user2@machine2 MyProgram >>> > which is very inconvenient with a lot of machines. >>> > >>> > Is there a way to do the same using a machinefile text? : >>> > mpirun -np 2 -machinefile machinefile.txt MyProgram >>> > >>> > I cannot find the appropriate syntax for specifying a user in >>> machinefile.txt... >>> > >>> > Thanks in advance, >>> > >>> > Olivier >>> > >>> > _______________________________________________ >>> > 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 >>> >> >> > _______________________________________________ > 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 > _______________________________________________ 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
