Scalable On-Board Multi-GPU Simulation of Long-Range Molecular Dynamics
نویسندگان
چکیده
Molecular dynamics simulations allow us to study the behavior of complex biomolecular systems by modeling the pairwise interaction forces between all atoms. Molecular systems are subject to slowly decaying electrostatic potentials, which turn molecular dynamics into an n-body problem. In this paper, we present a parallel and scalable solution to compute long-range molecular forces, based on the multilevel summation method (MSM). We first demonstrate an optimization of MSM that replaces 3D convolutions with FFTs, and we achieve a single-GPU performance comparable to the particle mesh Ewald (PME) method, the de facto standard for long-range molecular force computation. But most importantly, we propose a distributed MSM that avoids the scalability difficulties of PME. Our distributed solution is based on a spatial partitioning of the MSM multilevel grid, together with massively parallel algorithms for interface update and synchronization. We demonstrate the scalability of our approach on an on-board multi-GPU platform.
منابع مشابه
Scalable Multi-GPU Simulation of Long-Range Molecular Dynamics
Molecular dynamics simulations allow us to study the behavior of complex biomolecular systems by modeling the pairwise interaction forces between all atoms. Molecular systems are subject to slowly decaying electrostatic potentials, which turn molecular dynamics into an n-body problem. In this paper, we present a parallel and scalable solution to compute long-range molecular forces, based on the...
متن کاملOn-Board Multi-GPU Molecular Dynamics
Molecular dynamics simulations allow us to study the behavior of complex biomolecular systems. These simulations suffer a large computational complexity that leads to simulation times of several weeks in order to recreate just a few microseconds of a molecule’s motion even on high-performance computing platforms. In recent years, state-ofthe-art molecular dynamics algorithms have benefited from...
متن کاملLong Range Corrections to the Vapor-Liquid Equilibrium and Surface Tension of Methane with NVT Molecular Dynamics Simulations
متن کامل
Molecular dynamics simulation and docking studies on the binding properties of several anticancer drugs to human serum albumin
Disposition and transportation of anticancer drugs by human serum albumin (HSA) affects their bioavailability, distribution and elimination. In this study, the interaction of a set of anticancer drugs with HSA was investigated by molecular dynamics and molecular docking simulations. The drugs' activities were analyzed according to their docking scores, binding sites and structural descriptors. ...
متن کاملMulti-GPU implementation of the lattice Boltzmann method
The lattice Boltzmann method (LBM) is an increasingly popular approach for solving fluid flows in a wide range of applications. The LBM yields regular, data-parallel computations; hence, it is especially well fitted to massively parallel hardware such as graphics processing units (GPU). Up to now, though, single-GPU implementations of the LBM are of moderate practical interest since the on-boar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014