An efficient algorithm for Cholesky decomposition of electron repulsion integrals
Chemical Physics
2019-06-05 v1
Abstract
We present an algorithm where only the Cholesky basis is determined in the decomposition procedure. This allows for improved screening and a partitioned matrix decomposition scheme, both of which significantly reduce memory usage and computational cost. After the basis has been determined, an inner projection technique is used to construct the Cholesky vectors. The algorithm extends the application range of the methodology and is well suited for multilevel methods. We apply the algorithm to systems with up to 80000 atomic orbitals.
Cite
@article{arxiv.1811.12890,
title = {An efficient algorithm for Cholesky decomposition of electron repulsion integrals},
author = {Sarai D. Folkestad and Eirik F. Kjønstad and Henrik Koch},
journal= {arXiv preprint arXiv:1811.12890},
year = {2019}
}
Comments
17 pages, 6 figures, submitted to The Journal of Chemical Physics