TY  - CONF
AU  - Durr, Stephan
TI  - Three Dirac operators on two architectures with one piece of code and no hassle
VL  - LATTICE2018
CY  - Trieste
PB  - SISSA
M1  - FZJ-2019-00526
T2  - Proceedings of Science
SP  - 033
PY  - 2018
AB  - 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.
T2  - 36th Annual International Symposium on Lattice Field Theory, Lattice 2018
CY  - 22 Jul 2018 - 28 Jul 2018, East Lansing (USA)
Y2  - 22 Jul 2018 - 28 Jul 2018
M2  - East Lansing, USA
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - https://juser.fz-juelich.de/record/859687
ER  -