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Subject: Re: [OMPI users] Tracing the library using gdb and xterm
From: Jeff Pummill (jpummil_at_[hidden])
Date: 2008-01-01 11:26:15


When you log in to the remote system, use ssh -X or ssh -Y which will
export the xterm back thru the ssh connection.

Jeff Pummill
University of Arkansas

Krishna Chaitanya wrote:
> Hi,
> I have been tracing the interactions between the PERUSE
> and MPI library,on one machine. I have been using gdb along with xterm
> to have two windows open at the same time as I step through the code.
> I wish to get a better glimpse of the working of the point to point
> calls, by launching the job on two machines and by tracing the flow in
> a similar manner. This is where I stand as of now :
> mpirun --prefix /usr/local -hostfile machines -np 2 xterm -e gdb
> peruse_ex1
> xterm Xt error: Can't open display:
> xterm: DISPLAY is not set
> I tried using the display option for xterm and setting
> the value as 0.0, that was not of much help.
> If someone can guide me as to where the DISPLAY
> parameter has to be set to allow the remote machine to open the xterm
> window, it will be of great help.
> Thanks,
> Krishna
> --
> In the middle of difficulty, lies opportunity
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