Using Tsuprem 4 at Northeastern University

You will need a College of Engineering computer account on A "normal" COE account will not give you access to this machine. You will also need a "normal" ECE or COE account to log into a unix workstation.

1. Log in to any coe or ece UNIX machine

2. Type

     /usr/openwin/bin/xhost  +hopper

to allow windows to be displayed on the local machine.

2. Log in to "hopper" using the secure shell command:

ssh -l username

note: -l is a "dash lower-case ell", not the number "one".

3. Set the correct environment and paths for your account by typing

setenv TMAHOME /ECEnet/Apps1/TMA

set path = ( $path $TMAHOME/bin )

setenv DISPLAY name:0.0    (for example, setenv DISPLAY    where Farads is the machine you logged in from.

a. You may also add the first setenv line and the set path line to your .cshrc file so that the path is automatically set when you log in. The second setenv line depends on the machine you log in from.
b. Observe lower and UPPER case letters (except for machine names)!
c. Include the spaces before "/ECEnet" and "$path" and "$TMAHOME".
d. If you have problems with the graphics, just make the postscript file and view it, as described below!

4. Create a file containing the tsuprem4 commands that you wish to execute using a text editor (pico, xedit, etc.), or ftp from somewhere else. See Unix Basics for a little help.

5. Type: tsuprem4 This initiates the program. Type in the filename that you created in step 4 when prompted by tsuprem. The simulation then runs, printing intermediate results to the terminal so that you can monitor tsuprem's progress.

6. To depending on the option you use, you will either see the graphical output, or you can use a postcript viewer to open the postcript file and view it. The file name I used in the example is You can use ghostview to open the file called, but you may have to ftp it back to your local machine, if the graphics from hopper are not working. To do this, type ftp while you are logged in on hopper, sign in, and then type put The file will then be in your regular home directory on coe. You may also print the file (it is in postscript format). If you run tsuprem4 again, this file is overwritten. Rename the file if you want to keep it.

Adapted from Prof. Hopwood's ECE 3626 web site.