6533b835fe1ef96bd129e907
RESEARCH PRODUCT
Accelerating Ab Initio Nucleon Structure Calculations with All-Mode-Averaging on Gordon
Eigo ShintaniTom BlumYasumichi AokiChulwoo JungMeifeng LinTaku IzubuchiShoichi SasakiShigemi OhtaTakeshi Yamazakisubject
Quantum chromodynamicsPhysicsParticle physicsHigh Energy Physics::LatticeQuantum electrodynamicsLattice (order)High Energy Physics::PhenomenologyQuark–gluon plasmaMonte Carlo methodStrong interactionAb initioLattice QCDNucleondescription
The composition of nucleons has long been known to be sub-atomic particles called quarks and gluons, which interact through the strong force and theoretically can be described by Quantum Chromodynamics (QCD). Lattice QCD (LQCD), in which the continuous space-time is translated into grid points on a four-dimensional lattice and ab initio Monte Carlo simulations are performed, is by far the only model-independent method to study QCD with controllable errors. We report the successful application of a novel algorithm, All-Mode-Averaging, in the LQCD calculations of nucleon internal structure on the Gordon supercomputer our award of roughly 6 million service units through XSEDE. The application of AMA resulted in as much as a factor of 30 speedup in computational efficiency.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-07-13 | Proceedings of the 2014 Annual Conference on Extreme Science and Engineering Discovery Environment |