MPI parallelization and performance aspects of a graph based LB flow solver

Section Computational Science, University of Amsterdam Kruislaan 403, 1098 SJ Amsterdam, The Netherlands {labraham,alfons,sloot}@science.uva.nl C&C Research Laboratories, NEC Europe Ltd., Rathausallee 10, D-53757 St.Augustin, Germany bernsdorf@ccrl-nece.de Regionales Rechenzentrum Erlangen, University of Erlangen-Nuremberg, Martensstrasse 1, D-91058 Erlangen, Germany thomas.zeiser@rrze.uni-erlangen.de HLRS, Nobelstrasse 19, D-70569 Stuttgart, Germany lammers@hlrs.de