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
