We survey the underlying theory behind the large-scale and linear scaling DFT code, Conquest, which shows excellent parallel scaling and can be applied to thousands of atoms with exact solutions, and millions of atoms with linear scaling. We give details of the representation of the density matrix and the approach to finding the electronic ground state, and discuss the implementation of molecular dynamics with linear scaling. We give an overview of the performance of the code, focussing in particular on the parallel scaling, and provide examples of recent developments and applications.
@article{arxiv.2002.07704,
title = {Large scale and linear scaling DFT with the CONQUEST code},
author = {Ayako Nakata and Jack Baker and Shereif Mujahed and Jack T. L. Poulton and Sergiu Arapan and Jianbo Lin and Zamaan Raza and Sushma Yadav and Lionel Truflandier and Tsuyoshi Miyazaki and David R. Bowler},
journal= {arXiv preprint arXiv:2002.07704},
year = {2020}
}