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

[Anthony Chan]

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