Abstract
In Hybrid Monte Carlo (HMC) simulations for full QCD, the gauge fields evolve smoothly as a function of Molecular Dynamics (MD) time. Thus we investigate improved methods of estimating the trial solutions to the Dirac propagator as superpositions of the solutions in the recent past. So far our best extrapolation method reduces the number of Conjugate Gradient iterations per unit MD time by about a factor of 4. Further improvements should be forthcoming as we further exploit the information of past trajectories. ((orig.)).
Brower, R C;
[1]
Levi, A R;
[1]
Orginos, K
[2]
- Boston Univ., MA (United States). Dept. of Physics
- Brown Univ., Providence, RI (United States). Dept. of Physics
Citation Formats
Brower, R C, Levi, A R, and Orginos, K.
Extrapolation methods for the Dirac inverter in hybrid Monte Carlo.
Netherlands: N. p.,
1995.
Web.
doi:10.1016/0920-5632(95)00402-U.
Brower, R C, Levi, A R, & Orginos, K.
Extrapolation methods for the Dirac inverter in hybrid Monte Carlo.
Netherlands.
https://doi.org/10.1016/0920-5632(95)00402-U
Brower, R C, Levi, A R, and Orginos, K.
1995.
"Extrapolation methods for the Dirac inverter in hybrid Monte Carlo."
Netherlands.
https://doi.org/10.1016/0920-5632(95)00402-U.
@misc{etde_101228,
title = {Extrapolation methods for the Dirac inverter in hybrid Monte Carlo}
author = {Brower, R C, Levi, A R, and Orginos, K}
abstractNote = {In Hybrid Monte Carlo (HMC) simulations for full QCD, the gauge fields evolve smoothly as a function of Molecular Dynamics (MD) time. Thus we investigate improved methods of estimating the trial solutions to the Dirac propagator as superpositions of the solutions in the recent past. So far our best extrapolation method reduces the number of Conjugate Gradient iterations per unit MD time by about a factor of 4. Further improvements should be forthcoming as we further exploit the information of past trajectories. ((orig.)).}
doi = {10.1016/0920-5632(95)00402-U}
journal = []
volume = {42}
journal type = {AC}
place = {Netherlands}
year = {1995}
month = {Apr}
}
title = {Extrapolation methods for the Dirac inverter in hybrid Monte Carlo}
author = {Brower, R C, Levi, A R, and Orginos, K}
abstractNote = {In Hybrid Monte Carlo (HMC) simulations for full QCD, the gauge fields evolve smoothly as a function of Molecular Dynamics (MD) time. Thus we investigate improved methods of estimating the trial solutions to the Dirac propagator as superpositions of the solutions in the recent past. So far our best extrapolation method reduces the number of Conjugate Gradient iterations per unit MD time by about a factor of 4. Further improvements should be forthcoming as we further exploit the information of past trajectories. ((orig.)).}
doi = {10.1016/0920-5632(95)00402-U}
journal = []
volume = {42}
journal type = {AC}
place = {Netherlands}
year = {1995}
month = {Apr}
}