Abstract
QMCPACK is an open source quantum Monte Carlo package for ab initio electronic structure calculations. It supports calculations of metallic and insulating solids, molecules, atoms, and some model Hamiltonians. Implemented real space quantum Monte Carlo algorithms include variational, diffusion, and reptation Monte Carlo. QMCPACK uses Slater-Jastrow type trial wavefunctions in conjunction with a sophisticated optimizer capable of optimizing tens of thousands of parameters. The orbital space auxiliary-field quantum Monte Carlo method is also implemented, enabling cross validation between different highly accurate methods. The code is specifically optimized for calculations with large numbers of electrons on the latest high performance computing architectures, including multicore central processing unit and graphical processing unit systems. We detail the program's capabilities, outline its structure, and give examples of its use in current research calculations. The package is available at http://qmcpack.org.
Original language | English |
---|---|
Article number | 195901 |
Journal | Journal of Physics Condensed Matter |
Volume | 30 |
Issue number | 19 |
DOIs | |
State | Published - Apr 20 2018 |
Funding
25 This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the US Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Funders | Funder number |
---|---|
DOE Office of Science | DE-AC05-00OR22725 |
US Department of Energy | |
US Department of Energy Office of Science | |
US National Science Foundation | |
U.S. Department of Energy | |
Office of Science | |
Basic Energy Sciences | |
National Nuclear Security Administration | DE-NA0003525 |
Oak Ridge National Laboratory | DE-AC02-06CH11357 |
Lawrence Berkeley National Laboratory | DE-AC02-05CH11231 |
Division of Materials Sciences and Engineering | 17-SC-20-SC |
Keywords
- electronic structure
- quantum Monte Carlo
- quantum chemistry