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PARPACK (Parallel ARnoldi PACKage) is a parallel extension of ARPACK library. It is capable of solving large scale symmetric, nonsymmetric, and generalized eigenproblems in parallel based on the message passing layers BLACS and MPI.

The notation denotes a variable (such as directory name, file name, user name, etc.) that user has to substitute.

If a backslash (\) appears in a shell command, then it should be treated as a line continuation, i.e., it could be ignored if the user types in the shell command.

ROCKETCALC provides a shell script (along with source code) that installs PARPACK 96. The following are the steps to install PARPACK using the shell script.

Download the file parpack-96-2-rocketcalc.tar.bz2.
Unpack the tarball file:
tar jxf parpack-96-2-rocketcalc.tar.bz2
This will create directory parpack-96-2-rocketcalc.
Change directory to parpack-96-2-rocketcalc:
cd parpack-96-2-rocketcalc
Become root:
su
The user has to enter the root password. This step is not necessary. A regular user may install PARPACK.
The user should move (or delete) old PARPACK installation if he/she is planning to install it in the same location. The shell script will install PARPACK in
/parpack/96
The default value for is /usr/local.
Run the installation script:
./parpackinstall
This script will ask the user few questions and then will compile and install PARPACK.