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arXiv · 1710.07036

Testing algorithms for critical slowing down

Guido Cossu·Peter Boyle·Norman Christ·Chulwoo Jung·Andreas Jüttner·Francesco Sanfilippo
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Abstract

We present the preliminary tests on two modifications of the Hybrid Monte Carlo (HMC) algorithm. Both algorithms are designed to travel much farther in the Hamiltonian phase space for each trajectory and reduce the autocorrelations among physical observables thus tackling the critical slowing down towards the continuum limit. We present a comparison of costs of the new algorithms with the standard HMC evolution for pure gauge fields, studying the autocorrelation times for various quantities including the topological charge.

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Guido Cossu, Peter Boyle, Norman Christ, Chulwoo Jung, Andreas Jüttner, Francesco Sanfilippo. 2017-10-19. Testing algorithms for critical slowing down. https://doi.org/10.1051/epjconf%2F201817502008

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