Thanks very much for your reply. I would report later if I succeed. On Tue, Apr 14, 2015 at 11:19 AM, Ralph Castain <r...@open-mpi.org> wrote:
> > On Apr 13, 2015, at 5:47 PM, XingFENG <xingf...@cse.unsw.edu.au> wrote: > > Thanks for all who joined the discussion. > Yes, I meant to run the job under both accounts at the same time. > > Hi, Ralph, > > I have searched about specifying username in hostfile and got no related > page. Could you give a sample of specifying username in hostfile, please? > > > you just provide the host name as “username@host” > > Another problem is do you also specify password in hostfile? > > > > Good heavens, no! It has to be password-less ssh. Frankly, I doubt this > will work as I suspect ssh isn’t going to let you do it. > > > > On Tue, Apr 14, 2015 at 12:05 AM, Ralph Castain <r...@open-mpi.org> wrote: > >> >> On Apr 13, 2015, at 6:56 AM, Maxime Boissonneault < >> maxime.boissonnea...@calculquebec.ca> wrote: >> >> Le 2015-04-13 09:54, Ralph Castain a écrit : >> >> On Apr 13, 2015, at 6:52 AM, Maxime Boissonneault < >> maxime.boissonnea...@calculquebec.ca> wrote: >> >> Just out of curiosity... how will OpenMPI start processes under different >> accounts ? Through SSH while specifying different user names ? >> I am assuming that no resource manager or scheduler will allow this. >> >> I’m assuming he just plans to run the entire job as the other user. >> Essentially, it would be the same as if his friend ran the job for him. >> >> From this comment : >> >> My problem is that my account is limited to use 4 machines (I need more >> machines to process data). I can borrow my friend's account and thus have >> access to another 4 machines but I am not sure whether it works. >> >> I assumed that he wants to run the job under _both_ accounts at the same >> time. >> >> >> I honestly don’t know if that would work. We do provide a way in the >> hostfile for someone to specify the username for a remote host, but you’d >> have to get the ssh system to accept it. Assuming the other username also >> has your host in its authorized keys, then I suppose it might work - I’ve >> never tried it myself. >> >> >> >> >> My recommendation would be to contact your sysadmin and ask for an >> exception instead of going through with this insanity (forgive the >> judgement here). >> >> Agreed! >> >> Maxime >> >> Le 2015-04-13 09:47, Ralph Castain a écrit : >> >> Let’s hope you sys admin doesn’t find out about it - they tend to take a >> dim view of sharing accounts! >> >> So long as the path and library path are set correctly, we won’t care. >> >> >> On Apr 12, 2015, at 10:33 PM, XingFENG <xingf...@cse.unsw.edu.au> wrote: >> >> Hi all, >> >> I am wondering if it is possible that MPI programs can be run on machines >> with different account? >> >> I am doing experiments with some MPI programs on a cluster. My problem is >> that my account is limited to use 4 machines (I need more machines to >> process data). I can borrow my friend's account and thus have access to >> another 4 machines but I am not sure whether it works. >> >> -- >> Best Regards. >> --- >> Xing FENG >> PhD Candidate >> Database Research Group >> >> School of Computer Science and Engineering >> University of New South Wales >> NSW 2052, Sydney >> >> Phone: (+61) 413 857 288 >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26687.php >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26690.php >> >> >> -- >> --------------------------------- >> Maxime Boissonneault >> Analyste de calcul - Calcul Québec, Université Laval >> Ph. D. en physique >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26691.php >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26692.php >> >> >> >> -- >> --------------------------------- >> Maxime Boissonneault >> Analyste de calcul - Calcul Québec, Université Laval >> Ph. D. en physique >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26693.php >> >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26694.php >> > > > > -- > Best Regards. > --- > Xing FENG > PhD Candidate > Database Research Group > > School of Computer Science and Engineering > University of New South Wales > NSW 2052, Sydney > > Phone: (+61) 413 857 288 > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/04/26707.php > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/04/26708.php > -- Best Regards. --- Xing FENG PhD Candidate Database Research Group School of Computer Science and Engineering University of New South Wales NSW 2052, Sydney Phone: (+61) 413 857 288
