理化学研究所 計算科学研究センター

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第184回 第1部

第184回 第1部
日時: 2019年11月25日(月)、15:30 - 16:10
場所: R-CCS 6階講堂

・講演題目:Linear solvers in LQCD application
・講演者:金森 逸作(連続系場の理論研究チーム)
※発表・スライド共に英語

講演要旨:

Every proton and neutron are made of elementary particles called quark. The dynamics of quarks is described by Quantum Chromo Dynamics (QCD) and it can be formulated on a structure lattice (Lattice QCD or simply LQCD). The bottle neck of LQCD simulation, which a Markov Chain Monte Carlo (MCMC), is solving large sparse linear equation. It appears in both generating configurations and calculating physical observables using configurations. In this talk, I will discuss linear solvers for LQCD application. I will mainly focus on our recent implementation of multigrid type solvers. I will also discuss usage of simd variables in LQCD.