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 >
