Exact diagonalization of the Hubbard model on graphics processing units
Computational Physics
2012-06-20 v2 Strongly Correlated Electrons
Abstract
We solve the Hubbard model with the exact diagonalization method on a graphics processing unit (GPU). We benchmark our GPU program against a sequential CPU code by using the Lanczos algorithm to solve the ground state energy in two cases: a one-dimensional ring and a two-dimensional square lattice. In the one-dimensional case, we obtain speedups of over 100 and 60 in single and double precision arithmetic, respectively. In the two-dimensional case, the corresponding speedups are over 110 and 70.
Cite
@article{arxiv.1204.3425,
title = {Exact diagonalization of the Hubbard model on graphics processing units},
author = {Topi Siro and Ari Harju},
journal= {arXiv preprint arXiv:1204.3425},
year = {2012}
}