%0 Conference Paper
%A Durr, Stephan
%T Three Dirac operators on two architectures with one piece of code and no hassle
%V LATTICE2018
%C Trieste
%I SISSA
%M FZJ-2019-00526
%B Proceedings of Science
%P 033
%D 2018
%X A simple minded approach to implement three discretizations of the Dirac operator (staggered, Wilson, Brillouin) on two architectures (KNL and core i7) is presented. The idea is to use a high-level compiler along with OpenMP parallelization and SIMD pragmas, but to stay away from cache-line optimization and/or assembly-tuning. The implementation is for N_v right-hand-sides, and this extra index is used to fill the SIMD pipeline. On one KNL node single precision performance figures for N_c=3, N_v=12 read 475 Gflop/s, 345 Gflop/s, and 790 Gflop/s for the three discretization schemes, respectively.
%B 36th Annual International Symposium on Lattice Field Theory, Lattice 2018
%C 22 Jul 2018 - 28 Jul 2018, East Lansing (USA)
Y2 22 Jul 2018 - 28 Jul 2018
M2 East Lansing, USA
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%U https://juser.fz-juelich.de/record/859687