Instructions for installing and running ISOLVER on the PPPL UNIX cluster:

1) Edit your .cshrc file so that last line is:

   source /u/jmenard/.cshrc.nstxcollab

2) Source your .cshrc file for above addition to have effect

3) cp /u/jmenard/share/codes/isolver/version_3.1/iso31.tar.gz

        to your favorite work area (like your home directory),
        and gunzip and untar it with:

        unix> gunzip iso31.tar.gz
        unix> tar xvf iso31.tar

4)  wherever you untar it, cd to isolver/v3.1/run

5)  In run directory, start IDL by typing "idl" at unix prompt

6)  Execute idl "run" script to see if it runs:

IDL> @run

If it works, it should plot stuff as it's converging and finish
when converged.  You will need X11 for this to work, but we can
work around this if you don't have it.

7)  Read README in the "run" directory for instructions on how 
    to make EFIT compatible GEQDSK files after completion.