What are the contents of your $PATH environment variable? Make sure that your Open-MPI folder (/usr/lib/openmpi/1.2.5-gcc/bin) precedes '/usr/bin' in $PATH, i.e. /usr/lib/openmpi/1.2.5-gcc/bin:/usr/bin
then the Open-MPI version of mpirun or mpiexec will be used instead of the LAM-versions. This should also be the case on your other machines. BTW, since it seems you haven't correctly set your PATH variable, i suspect you have omitted to set LD_LIBRARY_PATH as well... see points 1,2 and 3 in http://www.open-mpi.org/faq/?category=running Jody On Tue, Aug 12, 2008 at 11:10 AM, Rayne <lancer6...@yahoo.com> wrote: > Hi, > > I looked for any folders with 'lam', and found 2, under /usr/lib/lam and > /etc/lam. I don't know if it means LAM was previously installed, because my > PC also has /usr/lib/lam, although the contents are different. I renamed the > 2 folders, and got the "*** Oops -- I cannot open the LAM help file." error > below instead. > > I tried 'whichexec', and it gave me /usr/bin/mpiexec. I checked the mpiexec > there and it's actually a Perl script, and I believe I installed OpenMPI in > /usr/lib64/openmpi/1.2.5-gcc/ > > So I tried mpirun instead and it gave me the following message: > > "*** Oops -- I cannot open the LAM help file. > *** I tried looking for it in the following places: > *** > *** $HOME/lam-helpfile > *** $HOME/lam-7.0.6-helpfile > *** $HOME/etc/lam-helpfile > *** $HOME/etc/lam- 7.0.6-helpfile > *** $LAMHELPDIR/lam-helpfile > *** $LAMHELPDIR/lam-7.0.6-helpfile > *** $LAMHOME/etc/lam-helpfile > *** $LAMHOME/etc/lam-7.0.6-helpfile > *** $SYSCONFDIR/lam-helpfile > *** $SYSCONFDIR/lam- 7.0.6-helpfile > *** > *** You were supposed to get help on the program "MPI" > *** about the topic "no-lamd" > *** > *** Sorry!" > > Firstly, how do I change the settings such that mpiexec points to the mpiexec > in my installation folder, which I believe should be > /usr/lib/openmpi/1.2.5-gcc/bin/mpiexec, and the mpiexec there seems to be a > shortcut that points to /usr/lib/openmpi/1.2.5-gcc/bin/orterun. Would this > help? While I'm at it, it seems that mpirun, which is /usr/bin/mpirun > currently, should also point to /usr/lib/openmpi/1.2.5-gcc/bin/mpirun, which > also is a shortcut to /usr/lib/openmpi/1.2.5-gcc/bin/orterun. > > Thank you. > > Regards, > Rayne > > --- On Tue, 12/8/08, jody <jody....@gmail.com> wrote: > >> From: jody <jody....@gmail.com> >> Subject: Re: [OMPI users] Setting up Open MPI to run on multiple servers >> To: lancer6...@yahoo.com, "Open MPI Users" <us...@open-mpi.org> >> Date: Tuesday, 12 August, 2008, 3:38 PM >> Hi Ryan >> Another thing: >> Have you checked if the mpiexec you call is really the one >> from your >> Open-MPI installation? >> >> Try 'which mpiexec' to find out. >> >> Jody >> >> On Tue, Aug 12, 2008 at 9:36 AM, jody >> <jody....@gmail.com> wrote: >> > Hi Ryan >> > >> > The message "Lamnodes Failed!" seems to >> indicate that you still have a >> > LAM/MPI installation somewhere. >> > You should get rid of that first. >> > >> > Jody >> > >> > On Tue, Aug 12, 2008 at 9:00 AM, Rayne >> <lancer6...@yahoo.com> wrote: >> >> Hi, thanks for your reply. >> >> >> >> I did what you said, set up the password-less ssh, >> nfs etc, and put the IP address of the server in the default >> hostfile (in my PC only, the default hostfile in the server >> does not contain any IP addresses). Then I installed Open >> MPI in the server under the same directory as my PC, e.g. >> /usr/lib/openmpi/1.2.5-gcc/ >> >> All my MPI programs and executables, e.g. a.out >> are in the shared folder. However, I have trouble running >> the MPI programs. >> >> >> >> After compiling my MPI program on my PC, I tried >> to run it via "mpiexec -n 2 ./a.out". However, I >> get the error message >> >> >> >> "Failed to find or execute the following >> executable: >> >> Host: (the name of the server) >> >> Executable: ./a.out >> >> >> >> Cannot continue" >> >> >> >> Then when I tried to run the MPI program on my >> server after compiling, I get the error: >> >> >> >> "Lamnodes Failed! >> >> Check if you had booted lam before calling mpiexec >> else use -machinefile to pass host file to mpiexec" >> >> >> >> I'm guessing that because the server cannot >> run the MPI program, I can't run the program on my PC as >> well. Is there some other configurations I missed when using >> Open MPI on my server? >> >> >> >> Thank you. >> >> >> >> Regards, >> >> Rayne > > > Yahoo! Toolbar is now powered with Search Assist.Download it now! > http://sg.toolbar.yahoo.com/ > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
