There is no hosts file there originally I put in cat hosts 127.0.0.1 localhost
but still get the same thing thanks, Erin erin@erin-laptop:~$ Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -----Original Message----- From: users-boun...@open-mpi.org on behalf of Whit Armstrong Sent: Fri 9/18/2009 7:36 AM To: Open MPI Users Subject: Re: [OMPI users] running open mpi on ubuntu 9.04 yes, I had this issue before (we are on 9.04 as well). it has to do with the hosts file. Erin, can you send your hosts file? I think you want to make this the first line of your host file: 127.0.0.1 localhost Which Ubuntu, if memory serves defaults to the name of the machine instead of localhost. -Whit On Fri, Sep 18, 2009 at 8:31 AM, Ralph Castain <r...@open-mpi.org> wrote: > It doesn't matter - 1.3 isn't going to launch another daemon on the local > node. > The problem here is that OMPI isn't recognizing your local host as being > "local" - i.e., it thinks that the host mpirun is executing on is somehow > not the the local host. This has come up before with ubuntu - you might > search the user mailing list for "ubuntu" to see earlier threads on this > issue. > > I forget the final solution, but those earlier threads will explain what > needs to be done. I'm afraid this is something quite specific to ubuntu. > > > On Sep 18, 2009, at 6:23 AM, Whit Armstrong wrote: > > can you "ssh localhost" without a password? > -Whit > > > On Thu, Sep 17, 2009 at 11:50 PM, Hodgess, Erin <hodge...@uhd.edu> wrote: > >> It's 1.3, please. >> >> Thanks, >> >> Erin >> >> >> Erin M. Hodgess, PhD >> Associate Professor >> Department of Computer and Mathematical Sciences >> University of Houston - Downtown >> mailto: hodge...@uhd.edu >> >> >> >> -----Original Message----- >> From: users-boun...@open-mpi.org on behalf of Ralph Castain >> Sent: Thu 9/17/2009 10:39 PM >> To: Open MPI Users >> Subject: Re: [OMPI users] running open mpi on ubuntu 9.04 >> >> I gather you must be running a version of the old 1.2 series? Or are >> you running 1.3? >> >> It does make a difference as to the nature of the problem, and the >> recommended solution. >> >> Thanks >> Ralph >> >> On Sep 17, 2009, at 8:51 PM, Hodgess, Erin wrote: >> >> > Dear Open MPI people: >> > >> > I'm trying to run a simple "hello world" program on Ubuntu 9.04 >> > >> > It's on a dual core laptop; no other machines. >> > >> > Here is the output: >> > erin@erin-laptop:~$ mpirun -np 2 a.out >> > ssh: connect to host erin-laptop port 22: Connection refused >> > >> -------------------------------------------------------------------------- >> > A daemon (pid 11854) died unexpectedly with status 255 while >> > attempting >> > to launch so we are aborting. >> > >> > There may be more information reported by the environment (see above). >> > >> > This may be because the daemon was unable to find all the needed >> > shared >> > libraries on the remote node. You may set your LD_LIBRARY_PATH to >> > have the >> > location of the shared libraries on the remote nodes and this will >> > automatically be forwarded to the remote nodes. >> > >> -------------------------------------------------------------------------- >> > >> -------------------------------------------------------------------------- >> > mpirun noticed that the job aborted, but has no info as to the process >> > that caused that situation. >> > >> -------------------------------------------------------------------------- >> > mpirun: clean termination accomplished >> > >> > erin@erin-laptop:~$ >> > >> > Any help would be much appreciated. >> > >> > Sincerely, >> > Erin >> > >> > >> > Erin M. Hodgess, PhD >> > Associate Professor >> > Department of Computer and Mathematical Sciences >> > University of Houston - Downtown >> > mailto: hodge...@uhd.edu >> > >> > >> > _______________________________________________ >> > 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 >
