A massively multicore parallelization of the Kohn-Sham energy gradients.
A massively multicore parallelization of the Kohn-Sham energy gradients.
复制标题
Kohn-Sham 能量梯度的大规模多核并行化。
DOI:
10.1002/jcc.21485
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发表时间:
2010
影响因子:
3
通讯作者:
Brown P
中科院分区:
文献类型:
--
作者:
Brown P
In a previous article [Brown et al., J Chem Theory Comput 2009, 4, 1620], we described a quadrature-based formulation of the Kohn-Sham Coulomb problem that allows for efficient parallelization over thousands of small processor cores. Here, we present the analytic gradients of this modified Kohn-Sham scheme, and describe the parallel implementation of the gradients on a numerical accelerator architecture. We demonstrate an order-of-magnitude acceleration for the combined energy and gradient calculation over a conventional single-core implementation.