Solving DWF Dirac Equation Using Multisplitting Preconditioned Conjugate Gradient
High Energy Physics - Lattice
2018-04-24 v1 Computational Physics
Abstract
We show that using the multisplitting algorithm as a preconditioner for conjugate gradient inversion of the domain wall Dirac operator could effectively reduce the inter- node communication cost, at the expense of performing more on-node floating point operations. This method could be useful for supercomputers with far more on-node flops than inter-node communication bandwidth.
Cite
@article{arxiv.1804.08593,
title = {Solving DWF Dirac Equation Using Multisplitting Preconditioned Conjugate Gradient},
author = {Duo Guo and Robert Mawhinney and Jiqun Tu},
journal= {arXiv preprint arXiv:1804.08593},
year = {2018}
}