Instructions:
=============
The most current serial ARPACK distribution is contained in the file

    arpack96.tar.gz

Once you have retrieved this file then issue the following command

        zcat arpack96.tar.gz | tar -xvf -

This will create a directory named ARPACK.  You should also
download the patch file patch.tar.gz and unbundle it using the
same command

        zcat patch.tar.gz | tar -xvf -

To add the parallel codes to the ARPACK package, retrieve

   parpack96.tar.gz  and ppatch.tar.gz

Once you have retrieved this file then issue the following command

        zcat parpack96.tar.gz | tar -xvf -
        zcat ppatch.tar.gz | tar -xvf -

This will add an additional subdirectory (PARPACK) to the ARPACK directory.
(ARPACK/PARPACK). Some additional files will be added to the ARMAKES directory as well as
updating the Makefile and README files in the top level ARPACK directory. 

IMPORTANT: Make sure that the tar files for the serial distribution and the 
parallel distribution are unbundled in the same top level directory.
Usually $(HOME).

Change to the ARPACK directory and read the file README for further instructions.