Solving DWF Dirac Equation Using Multisplitting Preconditioned Conjugate Gradient
High Energy Physics - Lattice
2018-11-22 v1
Abstract
We show that using the multisplitting algorithm as a preconditioner for conjugate gradient inversion of the domain wall fermion 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.1811.08488,
title = {Solving DWF Dirac Equation Using Multisplitting Preconditioned Conjugate Gradient},
author = {Jiqun Tu},
journal= {arXiv preprint arXiv:1811.08488},
year = {2018}
}
Comments
Proceeding for the 36th Annual International Symposium on Lattice Field Theory