Should be able to just set -mca plm_rsh_agent "ssh -Y"
on your cmd line, I believe On Apr 28, 2011, at 12:53 AM, jody wrote: > Hi Ralph > > Is there an easy way i could modify the OpenMPI code so that it would use > the -Y option for ssh when connecting to remote machines? > > Thank You > Jody > > On Thu, Apr 7, 2011 at 4:01 PM, jody <jody....@gmail.com> wrote: >> Hi Ralph >> thank you for your suggestions. After some fiddling, i found that after my >> last update (gentoo) my sshd_config had been overwritten >> (X11Forwarding was set to 'no'). >> >> After correcting that, i can now open remote terminals with 'ssh -Y' >> and with 'ssh -X' >> (but with '-X' is till get those xauth warnings) >> >> But the xterm option still doesn't work: >> jody@chefli ~/share/neander $ mpirun -np 4 -host squid_0 -xterm 1,2 >> printenv | grep WORLD_RANK >> Warning: untrusted X11 forwarding setup failed: xauth key data not generated >> Warning: No xauth data; using fake authentication data for X11 forwarding. >> /usr/bin/xterm Xt error: Can't open display: localhost:11.0 >> /usr/bin/xterm Xt error: Can't open display: localhost:11.0 >> OMPI_COMM_WORLD_RANK=0 >> [aim-squid_0:09856] [[54132,0],1]->[[54132,0],0] >> mca_oob_tcp_msg_send_handler: writev failed: Bad file descriptor (9) >> [sd = 8] >> [aim-squid_0:09856] [[54132,0],1] routed:binomial: Connection to >> lifeline [[54132,0],0] lost >> >> So it looks like the two processes from squid_0 can't open the display this >> way, >> but one of them writes the output to the console... >> Surprisingly, they are trying 'localhost:11.0' whereas when i use 'ssh -Y' >> the >> DISPLAY variable is set to 'localhost:10.0' >> >> So in what way would OMPI have to be adapted, so -xterm would work? >> >> Thank You >> Jody >> >> On Wed, Apr 6, 2011 at 8:32 PM, Ralph Castain <r...@open-mpi.org> wrote: >>> Here's a little more info - it's for Cygwin, but I don't see anything >>> Cygwin-specific in the answers: >>> http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding >>> >>> On Apr 6, 2011, at 12:30 PM, Ralph Castain wrote: >>> >>> Sorry Jody - I should have read your note more carefully to see that you >>> already tried -Y. :-( >>> Not sure what to suggest... >>> >>> On Apr 6, 2011, at 12:29 PM, Ralph Castain wrote: >>> >>> Like I said, I'm not expert. However, a quick "google" of revealed this >>> result: >>> >>> When trying to set up x11 forwarding over an ssh session to a remote server >>> with the -X switch, I was getting an error like Warning: No xauth >>> data; using fake authentication data for X11 forwarding. >>> >>> When doing something like: >>> ssh -Xl root 10.1.1.9 to a remote server, the authentication worked, but I >>> got an error message like: >>> >>> >>> jason@badman ~/bin $ ssh -Xl root 10.1.1.9 >>> Warning: untrusted X11 forwarding setup failed: xauth key data not generated >>> Warning: No xauth data; using fake authentication data for X11 forwarding. >>> Last login: Wed Apr 14 18:18:39 2010 from 10.1.1.5 >>> [root@RHEL ~]# >>> and any X programs I ran would not display on my local system.. >>> >>> Turns out the solution is to use the -Y switch instead. >>> >>> ssh -Yl root 10.1.1.9 >>> >>> and that worked fine. >>> >>> See if that works for you - if it does, we may have to modify OMPI to >>> accommodate. >>> >>> On Apr 6, 2011, at 9:19 AM, jody wrote: >>> >>> Hi Ralph >>> No, after the above error message mpirun has exited. >>> >>> But i also noticed that it is to ssh into squid_0 and open a xterm there: >>> >>> jody@chefli ~/share/neander $ ssh -Y squid_0 >>> Last login: Wed Apr 6 17:14:02 CEST 2011 from chefli.uzh.ch on pts/0 >>> jody@squid_0 ~ $ xterm >>> xterm Xt error: Can't open display: >>> xterm: DISPLAY is not set >>> jody@squid_0 ~ $ export DISPLAY=130.60.126.74:0.0 >>> jody@squid_0 ~ $ xterm >>> xterm Xt error: Can't open display: 130.60.126.74:0.0 >>> jody@squid_0 ~ $ export DISPLAY=chefli.uzh.ch:0.0 >>> jody@squid_0 ~ $ xterm >>> xterm Xt error: Can't open display: chefli.uzh.ch:0.0 >>> jody@squid_0 ~ $ exit >>> logout >>> >>> same thing with ssh -X, but here i get the same warning/error message >>> as with mpirun: >>> >>> jody@chefli ~/share/neander $ ssh -X squid_0 >>> Warning: untrusted X11 forwarding setup failed: xauth key data not >>> generated >>> Warning: No xauth data; using fake authentication data for X11 forwarding. >>> Last login: Wed Apr 6 17:12:31 CEST 2011 from chefli.uzh.ch on ssh >>> >>> So perhaps the whole problem is linked to that xauth-thing. >>> Do you have a suggestion how this can be solved? >>> >>> Thank You >>> Jody >>> >>> On Wed, Apr 6, 2011 at 4:41 PM, Ralph Castain <r...@open-mpi.org> wrote: >>> >>> If I read your error messages correctly, it looks like mpirun is crashing - >>> the daemon is complaining that it lost the socket connection back to mpirun, >>> and hence will abort. >>> >>> Are you seeing mpirun still alive? >>> >>> >>> On Apr 5, 2011, at 4:46 AM, jody wrote: >>> >>> Hi >>> >>> On my workstation and the cluster i set up OpenMPI (v 1.4.2) so that >>> >>> it works in "text-mode": >>> >>> $ mpirun -np 4 -x DISPLAY -host squid_0 printenv | grep WORLD_RANK >>> >>> OMPI_COMM_WORLD_RANK=0 >>> >>> OMPI_COMM_WORLD_RANK=1 >>> >>> OMPI_COMM_WORLD_RANK=2 >>> >>> OMPI_COMM_WORLD_RANK=3 >>> >>> but when i use the -xterm option to mpirun, it doesn't work >>> >>> $ mpirun -np 4 -x DISPLAY -host squid_0 -xterm 1,2 printenv | grep >>> WORLD_RANK >>> >>> Warning: untrusted X11 forwarding setup failed: xauth key data not >>> generated >>> >>> Warning: No xauth data; using fake authentication data for X11 forwarding. >>> >>> OMPI_COMM_WORLD_RANK=0 >>> >>> [squid_0:05266] [[55607,0],1]->[[55607,0],0] >>> >>> mca_oob_tcp_msg_send_handler: writev failed: Bad file descriptor (9) >>> >>> [sd = 8] >>> >>> [squid_0:05266] [[55607,0],1] routed:binomial: Connection to >>> >>> lifeline [[55607,0],0] lost >>> >>> /usr/bin/xterm Xt error: Can't open display: chefli.uzh.ch:0.0 >>> >>> /usr/bin/xterm Xt error: Can't open display: chefli.uzh.ch:0.0 >>> >>> (strange: somebody wrote his message to the console) >>> >>> No matter whether i set the DISPLAY variable to the full hostname of >>> >>> the workstation, >>> >>> to the IP-Adress of the workstation or simply to ":0.0", it doesn't work >>> >>> But i do have xauth data (as far as i know): >>> >>> On the remote (squid_0): >>> >>> jody@squid_0 ~ $ xauth list >>> >>> chefli/unix:10 MIT-MAGIC-COOKIE-1 5293e179bc7b2036d87cbcdf14891d0c >>> >>> chefli/unix:0 MIT-MAGIC-COOKIE-1 146c7f438fab79deb8a8a7df242b6f4b >>> >>> chefli.uzh.ch:0 MIT-MAGIC-COOKIE-1 146c7f438fab79deb8a8a7df242b6f4b >>> >>> on the workstation: >>> >>> $ xauth list >>> >>> chefli/unix:10 MIT-MAGIC-COOKIE-1 5293e179bc7b2036d87cbcdf14891d0c >>> >>> chefli/unix:0 MIT-MAGIC-COOKIE-1 146c7f438fab79deb8a8a7df242b6f4b >>> >>> localhost.localdomain/unix:0 MIT-MAGIC-COOKIE-1 >>> >>> 146c7f438fab79deb8a8a7df242b6f4b >>> >>> chefli.uzh.ch/unix:0 MIT-MAGIC-COOKIE-1 146c7f438fab79deb8a8a7df242b6f4b >>> >>> In sshd_config on the workstation i have 'X11Forwarding yes' >>> >>> I have also done >>> >>> xhost + squid_0 >>> >>> on the workstation. >>> >>> >>> How can i get the -xterm option running? >>> >>> Thank You >>> >>> Jody >>> >>> _______________________________________________ >>> >>> 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 >>> >> > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
