[mpich-discuss] problem with execution of examples/cpi

Mon Jun 30 11:54:11 CDT 2008

Anthony Chan,

I did not install MPICH on falcon due it to be shared by nfs, so I just
installed in the server and I get an image of this in both computers. I have
tried to execute like this "./cpi" and it gets the same error. I can process
both alone in each computer, but when I want it done by both this message
returns to me. Any idea?

Thanks a lot for your attention,

Ari

2008/6/30 Anthony Chan <chan at mcs.anl.gov>:

>
> Is mpich2 installed on falcon ?  If so, is it installed in the same
> location as eagle ?
>
> Assuming you have mpich2 installed correctly on both machines,
> cd to <mpich2-install-dir>/examples, then do
>
> mpiexec -n 10 ./cpi
>
> A.Chan
> ----- "Ariovaldo de Souza Junior" <ariovaldojunior at gmail.com> wrote:
>
> > ---------- Forwarded message ----------
> > From: Ariovaldo de Souza Junior < ariovaldojunior at gmail.com >
> > Date: 2008/6/30
> > Subject: Re: [MPICH2 Req #4157] Getting error message running mpiexec
> > To: Rajeev Thakur < thakur at mcs.anl.gov >, Pavan Balaji <
> > balaji at mcs.anl.gov >
> >
> >
> > Hello Rajeev and Pavan,
> >
> > Thanks a lot for your help on building MPICH correctly. I have removed
> > mpd (apt-get purge mpd) and then reinstalled MPICH. I was so happy
> > when I saw it was working T_T. A the looping test, with 1,000,000
> > loops too 431 seconds to be performed. Do you think it is a good rate?
> >
> > But now what brings me to here is what comes next. I have followed all
> > instructions from the "quick start" until this line:
> >
> > mpiexec -n 5 examples/cpi
> >
> > and it didn't work, returning this error:
> >
> > problem with execution of examples/cpi on falcon: [Errno 2] No such
> > file or directory
> > problem with execution of examples/cpi on falcon: [Errno 2] No such
> > file or directory
> >
> > and stopped in the second line.
> >
> > Then I tried to submit this command inside of the "examples" folder,
> > and it returned:
> >
> > problem with execution of cpi on eagle: [Errno 2] No such file or
> > directory
> > problem with execution of cpi on falcon: [Errno 2] No such file or
> > directory
> > problem with execution of cpi on falcon: [Errno 2] No such file or
> > directory
> > problem with execution of cpi on eagle: [Errno 2] No such file or
> > directory
> > problem with execution of cpi on eagle: [Errno 2] No such file or
> > directory
> >
> > Now I can see that it failed for the five processes. I have set and
> > mounted the nfs on the node (until now I'm setting up just one
> > computer, later I'll close this one) and it is working ok. So my
> > server is named as eagle and the node, falcon. mpd is running in both
> > computers, this I can see utilizing the mpdtrace command. when I
> > submit the example "mpiexec -l -n 10 hostname" it returns me this:
> >
> > root at eagle:/modeling/mpich2-1.0.7/examples# mpiexec -l -n 10 hostname
> > 1: falcon
> > 2: eagle
> > 3: falcon
> > 5: falcon
> > 4: eagle
> > 7: falcon
> > 8: eagle
> > 6: eagle
> > 0: eagle
> > 9: falcon
> >
> > And then I think it is ok.
> > the paths are set and ok, so I don't understand why is that returning
> > that error, not found, if even if I execute it inside of "examples"
> > folder it doesn't work (of course I take off the examples part, or
> > even add the whole path).
> >
> > Ad I have a doubt, a stupid one, sorry, every time I restart the
> > computer I have to point the path for the bin directory, and then it
> > works. Is there any way to set it automatically?
> >
> > Sorry for trouble you two so much. And thank you two until now for
> > your attention!
> >
> > Ari.
> >
> >
> >
> >
> >
> > 2008/6/27 Rajeev Thakur < thakur at mcs.anl.gov >:
> >
> >
> >
> >
> >
> >
> >
> > What exact commands did you use to configure, make, and install
> > MPICH2? How did music and playlist get into the mpd directory? :-)
> >
> > Rajeev
> >
> >
> >
> >
> >
> > From: Ariovaldo de Souza Junior [mailto: ariovaldojunior at gmail.com ]
> > Sent: Friday, June 27, 2008 6:31 PM
> > To: mpich2-maint at mcs.anl.gov
> > Cc: mpich2-maint at mcs.anl.gov
> > Subject: [MPICH2 Req #4157] Getting error message running mpiexec
> >
> >
> >
> >
> >
> > Hello everybody.
> >
> > I'm trying to make mpich work for a cluster running NAMD and I'm
> > frozen in the tests step yet. When I try to run the simple script
> > "helloworld.out" I get the followying error message:
> >
> > root at eagle:/modeling/mpich# mpiexec ./hello.out
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:music_directory "/var/lib/mpd/music"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:playlist_directory "/var/lib/mpd/playlists"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:db_file "/var/lib/mpd/tag_cache"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:log_file "/var/log/mpd/mpd.log"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:error_file "/var/log/mpd/errors.log"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:pid_file "/var/run/mpd/pid"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:state_file "/var/lib/mpd/state"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:user "root"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:bind_to_address "localhost"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:password "gqtcpbm at read,add,control,admin"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:filesystem_charset "UTF-8"
> > :
> > mpiexec_eagle (get_parms_from_rcfile 1403): line in mpd conf is not
> > key=val pair; line=:id3v1_encoding "UTF-8"
> > :
> > /modeling/mpich/bin/mpdroot: did not find secretword in mpd conf
> > filempiexec_eagle (__init__ 1190): forked process failed; status=255
> >
> > I googled around trying all I could but I didn't find anything. Do
> > anyone have a clue about what is going one? Thanks a lot for any tip!
> >
> > Ariovaldo
> > UFAM - Brazil
>
>
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