Projection of the low-lying eigenmodes of the overlap Dirac operator in lattice QCD

Abstract

We outline our implementation of the adaptive thick-restart Lanczos algorithm ($a$-TRLan) for the projection of the low-lying eigenmodes of the overlap Dirac operator in lattice QCD, and compare the performances of our code and the widely used package ARPACK.

Comments: 9 pages, 2 figures, presented at the 2013 International Workshop on Computational Science and Enginnering, 14-17 October 2013, Taipei, Taiwan