Super-linear speed-up of a parallel multigrid navier-stokes solver on flosolver

Abstract

In parallel computing, scalability is an important issue and getting linear speed-ups is difficult for most codes. Superlinear speed-up has been achieved on an eight-processor Flosolver system for a multigrid navier-stokes code. The physical problem solved, the parallelization method, the speed-ups obtained and possible explanations for this result are discussed here.