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Accelerating Hasenbusch's acceleration of Hybrid Monte Carlo

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arxiv hep-lat/0309078 v2 pith:LHKMRLFF submitted 2003-09-15 hep-lat

classification hep-lat
keywords carlohasenbuschhybridmontespeed-upsplittingacceleratingacceleration
verification ladder T0 review T1 audit T2 compute T3 formal
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Hasenbusch has proposed splitting the pseudo-fermionic action into two parts, in order to speed-up Hybrid Monte Carlo simulations of QCD. We have tested a different splitting, also using clover-improved Wilson fermions. An additional speed-up between 5 and 20% over the original proposal was achieved in production runs.

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