Reference Guide

ANSYS Fluent Performance
17 Dell EMC Ready Solutions for HPC Digital Manufacturing with AMD EPYC™ Processors—ANSYS®
Performance
Figure 7 ANSYS Fluent Parallel Scaling—AMD EPYC 7452
Figure 7 presents the parallel scalability when running Fluent with up to eight CBB nodes configured with
AMD EPYC 7452 processors and ConnectX-6 HDR100 InfiniBand. All processor cores in each server were
used when running these benchmarks. The performance at each node count is presented relative to the
performance of a single node.
The parallel scalability for these benchmarks is as expected, with some models demonstrating super-linear
scaling. Super-linear scaling is typically observed when more of the active data fits into processor cache as
the number of nodes used increases. The ice_2m benchmark does not scale as well as the other
benchmarks, but this is expected as it is a small model which includes dynamic mesh and combustion
simulation.
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
1 2 4 6 8
Performance Relative to One Node
Number of Nodes
ANSYS Fluent Parallel Scaling—AMD EPYC 7452
aircraft_wing_14m aircraft_wing_2m combustor_12m
combustor_71m exhaust_system_33m f1_racecar_140m
fluidized_bed_2m ice_2m landing_gear_15m
lm6000_16m oil_rig_7m open_racecar_280m
pump_2m rotor_3m sedan_4m