多重网格算法在LQCD中的作用
The role of multigrid algorithms for LQCD
摘要：
我们报告的第一个成功的QCD多重网格算法，证明恒定的收敛速度独立的夸克质量和晶格体积的威尔逊狄拉克运营商。新的成分是自适应的方法来构建近零空间上的粗网格多重网格狄拉克算子的行为。此外，我们推测该算法的域壁和交错离散化，其特殊的适用性高性能GPU代码和其潜在的影响，在物理介子质量模拟的未来前景。
英文摘要：
We report on the first successful QCD multigrid algorithm which demonstrates constant convergence rates independent of quark mass and lattice volume for the Wilson Dirac operator. The new ingredient is the adaptive method for constructing the near null space on which the coarse grid multigrid Dirac operator acts. In addition we speculate on future prospects for extending this algorithm to the Domain Wall and Staggered discretizations, its exceptional suitability for high performance GPU code and its potential impact on simulations at the physical pion mass.
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