Tuning the hybrid Monte Carlo algorithm.

Tuning the hybrid Monte Carlo algorithm.
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调整混合蒙特卡罗算法。

DOI:
10.1103/physrevd.38.1278
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发表时间:
1988
期刊:
Physical review. D, Particles and fields
影响因子:
--
通讯作者:
S. Sharpe
S. Sharpe
中科院分区:
--
文献类型:
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作者:
Rajan Gupta;G. Kilcup;G. Kilcup;S. Sharpe

文献摘要

被引文献

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我们将混合蒙特卡洛算法应用于纯规 QCD 和具有四种交错动态费米子的 QCD。我们展示了全局 Metropolis 步中的接受度如何取决于算法参数。通过调整算法中的耦合常数值,使其不同于全局 Metropolis 步中的耦合常数值,我们发现可以保持较大的接受度,而不必使步长过小。我们对调整进行了分析讨论,并认为该算法所需的计算机时间增长与 ${V}^{5/4}$ 成正比。
We apply the hybrid Monte Carlo algorithm to pure gauge QCD and to QCD with four flavors of staggered dynamical fermions. We show how the acceptance in the global Metropolis step depends upon the parameters of the algorithm. By tuning the values of the coupling constants in the algorithm to be different from those in the global Metropolis step, we find that the acceptance can be kept large without having to make the step size prohibitively small. We give an analytic discussion of the tuning, and argue that the algorithm requires computer time growing proportional to ${V}^{5/4}$.