ARPACK

ARPACK, the ARnoldi PACKage, is a numerical software library written in FORTRAN 77 for solving large scale eigenvalue problems in the matrix-free fashion.

The package is designed to compute a few eigenvalues and corresponding eigenvectors of large sparse or structured matrices, using the Implicitly Restarted Arnoldi Method (IRAM) or, in the case of symmetric matrices, the corresponding variant of the Lanczos algorithm. It is used by many popular numerical computing environments such as SciPy, Mathematica, GNU Octave and MATLAB to provide this functionality.

Usage

Version	module name
3.7.0	arpack-ng/3.7.0

Compiler/MPI	GCC 8.3.1	GCC 9.3.0	Intel 19.0.3	Intel 20.0.3	Intel 2021.3.0
Serial
MPICH 3.3.2
MVAPICH2 2.3.4
OpenMPI 4.0.5

Compiler Flags

-L${LURC_ARPACK_NG_DIR}/lib64 -larpack -I${LURC_ARPACK_NG_DIR}/include

Links

For more information visit https://github.com/opencollab/arpack-ng