ARPACK is a collection of Fortran77 subroutines designed to solve large scale eigenvalue problems. ARPACK should be readily packaged by most Linux distributions. Don't forget to install a development version of the library.
Below is a short summary of instructions on how to compile and install ARPACK by hand (for the case you wish to do so).
After you downloaded the Fortran version of ARPACK and the patch, unzip the files you got. That will create a directory named ARPACK. If you need further instructions please read the README file or the instructions. We will explain here in a few steps what has to be done to be able to compile ARPACK.
make libin the current directory to build the standard library
Note: For compilation of ARPACK we emphasise
adding the compiler flag
-fPIC. This is a definite
requirement if we are compiling deal.II with
shared libraries (which is the default). If we had preferred to be
compiling deal.II without shared libraries,
that's ok too; in that case we would do exactly the same thing
as described above, but this time omitting
-fPIC flag from the scheme.
Try to run one of the examples and compare the output.
How the output should look like is stated in the README
that can be found in the
If that output you produced looks like it should you can proceed to compile deal.II with ARPACK.
Support for ARPACK will be enabled automatically if a system wide installation of ARPACK can be found. To use a self compiled version, specify
You can override the autodetection by manually setting