FEAST Eigenvalue Solver v3.0 User Guide

Understand

The FEAST eigensolver package is a free high-performance numerical library for solving the Hermitian and non-Hermitian eigenvalue problems, and obtaining all the eigenvalues and (right/left) eigenvectors within a given search interval or arbitrary contour in the complex plane.

• Its originality lies with a new transformative numerical approach to the traditional eigenvalue algorithm design - the FEAST algorithm.
• The FEAST eigensolver combines simplicity and efficiency and it offers many important capabilities for achieving high performance, robustness, accuracy, and scalability on parallel architectures.
• FEAST is both a comprehensive library package, and an easy to use software.