Speeding up the HMC algorithm: Some new results
| dc.creator | Hasenbusch, Martin | |
| dc.date | 2005-09-22 | |
| dc.date.accessioned | 2026-07-07T13:08:02Z | |
| dc.date.available | 2026-07-07T13:08:02Z | |
| dc.description | We give some new performance results for the Hybrid Monte Carlo (HMC) simulation of dynamical clover-improved Wilson fermions using an improved pseudo-fermion action. The generalisation of even-odd preconditioning for the standard Wilson fermion matrix to the clover-improved case is not unique. In the literature the so called symmetric and asymmetric versions are discussed. Most of the previous simulations of dynamical clover-improved Wilson fermions were done with the asymmetric version. Only recently, the JLQCD collaboration has pointed out that the symmetric version leads to a better performance of the HMC algorithm. Here, we show that also in combination with an improved pseudo-fermion action, the symmetric version of even-odd preconditioning leads to a better performance. For our lightest quark mass, which corresponds to $m_{PS}/m_{V} \approx 0.44$, we see a gain in performance by a factor of about 1.3. | |
| dc.description | 6 pages, talk presented at the Lattice 2005 (machines and algorithms) | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0509080 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0509080 | |
| dc.identifier | PoS LAT2005 (2005) 116 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/228288 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Speeding up the HMC algorithm: Some new results | |
| dc.type | text |