Publications
Publication Information
| Title | Improving dynamical lattice QCD simulations through integrator tuning using Poisson brackets and a force-gradient integrator |
| Authors | Michael Clark, Balint Joo, Anthony Kennedy, Paulo Silva |
| JLAB number | JLAB-IT-11-06 |
| LANL number | arXiv:1108.1828 |
| Other number | DOE/OR/23177-2972 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
|
Journal Compiled for Physical Review D Volume 84 Issue 07 Page(s) 071502(R) Refereed | |
| Publication Abstract: | We show how the integrators used for the molecular dynamics step of the Hybrid Monte Carlo algorithm can be further improved. These integrators not only approximately conserve some Hamiltonian H but conserve exactly a nearby shadow Hamiltonian H~. This property allows for a new tuning method of the molecular dynamics integrator and also allows for a new class of integrators (force-gradient integrators) which is expected to reduce significantly the computational cost of future large-scale gauge field ensemble generation. |
| Experiment Numbers: | other |
| Group: | Scientific Computing |
| Document: | |
| DOI: | http://dx.doi.org/10.1103/PhysRevD.84.071502 |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |