Title
Rapid, concurrent and adaptive extreme scale binding free energy calculation.
Abstract
The efficacy of drug treatments depends on how tightly small molecules bind to their target proteins. The rapid and accurate quantification of the strength of these interactions (as measured by u0027binding affinityu0027) is a grand challenge of computational chemistry, surmounting which could revolutionize drug design and provide the platform for patient specific medicine. Recent evidence suggests that molecular dynamics (MD) can achieve useful predictive accuracy (? 1 kcal/mol). For this predictive accuracy to impact clinical decision making, binding free energy results must be turned around rapidly and without loss of accuracy. This demands advances in algorithms, scalable software systems, and efficient utilization of supercomputing resources. We introduce a framework called HTBAC, designed to support accurate and scalable drug binding affinity calculations, while marshaling large simulation campaigns. We show that HTBAC supports the specification and execution of adaptive free-energy protocols at scale and with minimal overheads on NCSA Blue Waters. We validate the results obtained and show how adaptivity can be used to improve accuracy while reducing resource consumption of TIES, a widely used free-energy protocol.
Year
Venue
Field
2018
arXiv: Distributed, Parallel, and Cluster Computing
Calculator,Computer science,A priori and a posteriori,Invariant (mathematics),Scaling,Workflow,Blue Waters,Distributed computing,Scalability,Computation
DocType
Volume
Citations 
Journal
abs/1801.01174
0
PageRank 
References 
Authors
0.34
8
9
Name
Order
Citations
PageRank
Jumana Dakka110.69
Kristof Farkas-Pall200.68
Vivek Balasubramanian300.68
Matteo Turilli48416.21
David W. Wright5187.35
Shunzhou Wan684.02
Stefan J. Zasada712912.79
Peter V. Coveney820632.82
Shantenu Jha918832.40