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The Arnoldi Package (ARPACK) was designed to compute eigenvalues and eigenvectors of large sparse matrices. Originally from Rice University, an open source version (ARPACK-NG) is available under a BSD license and is made available here.

Compiling and linking with ARPACK

  • module load arpack-ng

To compile an application against the ARPACK-NG libraries, load the arpack-ng module and use the compiler wrappers cc, CC, and ftn in the usual way.

The arpack-ng module defines ARPACK_NG_DIR which locates the root of the installation for the current programming environment.

Version history

  • Module arpack-ng/3.8.0 installed October 2021 (PE 21.04)
  • Not available

Compiling your own version

The current supported version of MUMPS on Archer2 can be compiled using a script available from the Archer githug repository.

$ git clone
$ cd pe-scripts
$ git checkout modules-2021-10
$ ./sh/ --prefix=/path/to/install/location
where the --prefix specifies a suitable location. See the Archer2 github repository for further options and details.


Original ARPACK page

ARPACK-NG github site