External Flow over passenger sedan (sedan_4m)

External Flow over passenger sedan. The case has around 4 million cells of mixed type and uses a k-epsilon model with the pressure-based coupled solver.

Number of cells 4,000,000
Cell type Mixed
Models Standard K-e Turbulence
Solver Pressure based coupled solver, Green-Gauss cell based, steady

Results

Results are listed alphabetically by platform. Download

Last updated: 2017-12-27
Platform Cores Machines Core Solver
Rating
Core Solver
Speedup
Core Solver
Efficiency
AMD white box,EPYC 7601, 64 cores, 2.2 GHz 

Download
16
1
2738.5103
16.000 
100.00%
32
1
4032.6721
23.561
73.63%
64
1
5260.2740
30.734
48.02%
128
2
9790.3683
57.201
44.69%
Cray XC40  with Intel E5-2695v4 processor, 2.1 GHz, Cray Linux Environment 6.0 update 03 based on SUSE 12 using Cray Aries network

Download
36
1
2987.0354
36.000
100.00%
72
2
6084.5070
73.331
101.85%
144
4
12752.7675
153.697
106.73%
288
8
25226.2774
304.029
105.57%
432
12
37565.2174
452.739
104.80%
 576 16 52363.6364 631.091 109.56%
 864  24 73531.9149 886.213 102.57%
 1152  32  90947.3684 1096.105 95.15%
 1728  48 104727.2727 1262.182 73.04%  
 2304   64   111483.8710 1343.613   58.32%
 3456   96   119172.4138   1436.276  41.56%
 4608 128   115200.0000   1388.400  30.13%