GPU-Accelerated Molecular Dynamics and Free Energy Methods in Amber18: Performance Enhancements and New Features

Tai Sung Lee, David S. Cerutti, Dan Mermelstein, Charles Lin, Scott Legrand, Timothy J. Giese, Adrian Roitberg, David A. Case, Ross C. Walker, Darrin M. York

Research output: Contribution to journalArticlepeer-review

248 Scopus citations

Abstract

We report progress in graphics processing unit (GPU)-accelerated molecular dynamics and free energy methods in Amber18. Of particular interest is the development of alchemical free energy algorithms, including free energy perturbation and thermodynamic integration methods with support for nonlinear soft-core potential and parameter interpolation transformation pathways. These methods can be used in conjunction with enhanced sampling techniques such as replica exchange, constant-pH molecular dynamics, and new 12-6-4 potentials for metal ions. Additional performance enhancements have been made that enable appreciable speed-up on GPUs relative to the previous software release.

Original languageEnglish (US)
Pages (from-to)2043-2050
Number of pages8
JournalJournal of Chemical Information and Modeling
Volume58
Issue number10
DOIs
StatePublished - Oct 22 2018

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Computer Science Applications
  • Library and Information Sciences

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