Affordable and accurate large-scale hybrid-functional calculations on GPU-accelerated supercomputers

Ratcliff, Laura E. and Degomme, A. and Flores-Livas, Jose A. and Goedecker, Stefan and Genovese, Luigi. (2018) Affordable and accurate large-scale hybrid-functional calculations on GPU-accelerated supercomputers. JOURNAL OF PHYSICS-CONDENSED MATTER, 30 (9). 095901.

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Official URL: https://edoc.unibas.ch/68232/

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Performing high accuracy hybrid functional calculations for condensed matter systems containing a large number of atoms is at present computationally very demanding or even out of reach if high quality basis sets are used. We present a highly optimized multiple graphics processing unit implementation of the exact exchange operator which allows one to perform fast hybrid functional density-functional theory (DFT) calculations with systematic basis sets without additional approximations for up to a thousand atoms. With this method hybrid DFT calculations of high quality become accessible on state-of-the-art supercomputers within a time-to-solution that is of the same order of magnitude as traditional semilocal-GGA functionals. The method is implemented in a portable open-source library.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Physik (Goedecker)
UniBasel Contributors:Goedecker, Stefan
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:16 Oct 2019 14:59
Deposited On:08 Oct 2019 07:32

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