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200 USERS OBTAIN ARPACK ONLINE

The ARPACK software package, developed by Rice University CRPC researcher Danny Sorensen and colleagues, is a collection of Fortran 77 subroutines designed to solve large-scale eigenvalue problems. The package has been available over the World Wide Web since December 1995 and has been obtained by 200 users to date.

ARPACK software is capable of solving large-scale symmetric, nonsymmetric standard, or generalized eigenvalue problems. Industrial- scale problems with as many as one million degrees of freedom have been solved with this package. ARPACK is currently regarded as the best software available for these problems on both parallel and standard computing systems and is very portable. The parallel version, PARPACK, may be linked either to BLACS or MPI to obtain efficient portable parallel execution on a variety of platforms. These include the IBM-SP2, CRAY-T3D, Intel Paragon, and SGI Power Challenge Cluster.

For more information on ARPACK, see http://www.caam.rice.edu/~kristyn/parpack_home.html .