Hi Sorry to bring this subject up again - but i have a problem getting xterms running for all of my processes (for debugging purposes). There are actually two problem involved: display, and paths.
my ssh is set up so that X forwarding is allowed, and, indeed, ssh nano_00 xterm opens an xterm from the remote machine nano_00. When i run my program normally, it works ok: [jody]:/mnt/data1/neander:$mpirun -np 4 --hostfile testhosts ./MPITest [aim-plankton.unizh.ch]I am #0/4 global [aim-plankton.unizh.ch]I am #1/4 global [aim-nano_00]I am #2/4 global [aim-nano_00]I am #3/4 global But when i try to see it in xterms [jody]:/mnt/data1/neander:$mpirun -np 4 --hostfile testhosts -x DISPLAY xterm -hold -e ./MPITest xterm Xt error: Can't open display: :0.0 xterm Xt error: Can't open display: :0.0 (same happens, if i set DISPLAY=plankton:0.0, or if i use plankton's ip address; and xhost is enabled for nano_00) the other two (the "local") xterms open, but they display the message: ./MPITest: error while loading shared libraries: libmpi_cxx.so.0: cannot open shared object file: No such file or directory (This also happens if i only have local processes) So my first question is: what do i do to enable nano_00 to display an xterm on plankton? Using normal ssh there seems to be no problem. Second question: why does the use of xterm "hide" the open-mpi libs? Interestingly: if i use xterm with gdb to start my application, it works. Any ideas? Thank you Jody
