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Exterior Flow Around a Passenger Sedan
 

This benchmark represents the computation of the exterior flow field around a simplified model of a passenger sedan. The simulation geometry was used for the Japan External Aerodynamics competition. A viscous-hybrid grid with prismatic cells is used to adequately model the boundary layer regions.

Number of cells
3,618,080
Cell type
hybrid
Models
k-epsilon turbulence
Solver
segregated implicit

Plots

Serial
Parallel

Results

In the table below, a rating listed in red corresponds to the redzone result, and one in bold is a peak result. Bold red is used to indicate that the run was both the peak and redzone result.

Results are listed alphabetically by platform, within each FLUENT version.

 

Platform FL5L2 RATINGS
FLUENT Version CPUs or Cores Machines or Blocks Rating Speedup Efficiency
DELL POWEREDGE_1750 (XEON,3060,LINUX,MYRINET_D) 6.1 serial 1 62.8 N/A N/A
1 1 64.2 1.0 100%
2 2 123.2 1.9 96%
4 4 270.9 4.2 105%
8 8 533.0 8.3 104%
16 16 1026.4 16.0 100%
32 32 1921.1 29.9 94%
64 32 2835.1 44.2 69%
DELL POWEREDGE_2650 (XEON,2400,WIN2K,GBIT) 6.1 serial 1 39.6 N/A N/A
1 1 39.2 1.0 100%
2 1 72.1 1.8 92%
4 2 142.8 3.6 91%
8 4 260.6 6.6 83%
16 8 453.0 11.6 72%
32 16 940.7 24.0 75%
64 32 1031.9 26.3 41%
128 64 805.4 20.5 16%
HP C8000 (PA8800,900,HPUX) 6.1 2 1 93.9 N/A N/A
HP RX2600 (ITANIUM2,1500,HPUX,GBIT) 6.1 2 2 132.5 N/A N/A
4 4 258.6 N/A N/A
4 2 244.4 N/A N/A
8 8 492.8 N/A N/A
8 4 466.5 N/A N/A
16 16 938.4 N/A N/A
16 8 908.5 N/A N/A
32 16 1082.4 N/A N/A
HP RX5670 (ITANIUM2,1500,LINUX) 6.1 serial 1 65.0 N/A N/A
1 1 68.1 1.0 100%
2 1 123.1 1.8 90%
4 1 223.3 3.3 82%
IBM PSERIES_570 (POWER5,1900,AIX53) 6.1 serial 1 98.5 N/A N/A
1 1 100.4 1.0 100%
2 1 219.4 2.2 109%
4 1 435.4 4.3 108%
8 1 813.4 8.1 101%
16 1 1656.8 16.5 103%
IBM PSERIES_570 (POWER5,1900_SMT,AIX53) 6.1 1 1 134.2 N/A N/A
2 1 250.3 N/A N/A
4 1 472.5 N/A N/A
8 1 983.8 N/A N/A
IBM PSERIES_655 (POWER4,1700,AIX52,FEDERATION_SWITCH) 6.1 1 1 82.6 1.0 100%
2 1 169.6 2.1 103%
4 1 334.9 4.1 101%
8 2 648.9 7.9 98%
16 4 1262.2 15.3 96%
32 8 2470.3 29.9 93%
64 16 3995.4 48.4 76%
128 32 5104.9 61.8 48%
IBM XSERIES_335 (XEON,2800_533FSB,LINUX,GBIT) 6.1 1 1 59.8 1.0 100%
2 2 111.0 1.9 93%
4 4 236.1 3.9 99%
8 8 459.1 7.7 96%
16 8 735.5 12.3 77%
IBM XSERIES_335 (XEON,2800_533FSB,LINUX,MYRINET) 6.1 1 1 60.0 1.0 100%
2 2 115.7 1.9 96%
4 4 253.2 4.2 106%
8 8 502.6 8.4 105%
16 8 878.0 14.6 91%
IBM XSERIES_335 (XEON,3060_533FSB,LINUX,MYRINET) 6.1 serial 1 62.2 N/A N/A
1 1 64.6 1.0 100%
2 2 122.3 1.9 95%
4 4 272.4 4.2 105%
8 8 543.1 8.4 105%
16 16 1048.2 16.2 101%
32 32 1938.3 30.0 94%
64 64 3208.9 49.7 78%
LINUX_NETWORX EVOLOCITY (XEON,3060,LINUX,MYRINET_D) 6.1 8 4 409.9 N/A N/A
32 16 1561.7 N/A N/A
64 32 2586.8 N/A N/A
128 64 3634.1 N/A N/A
SUN JAVA_WS_W1100Z (OPTERON,2400,LINUX) 6.1 serial 1 77.2 N/A N/A
1 1 78.3 1.0 100%
SUN JAVA_WS_W2100Z (OPTERON,2400,LINUX) 6.1 serial 1 74.7 N/A N/A
1 1 75.6 1.0 100%
2 1 146.6 1.9 97%
SUN V20Z (OPTERON,2400,LINUX) 6.1 serial 1 72.9 N/A N/A
1 1 73.1 1.0 100%
2 1 149.3 2.0 102%
SUN V65X (XEON,3060,LINUX,MYRINET) 6.1 serial 1 64.9 N/A N/A
1 1 65.7 1.0 100%
2 2 124.2 1.9 95%
4 4 270.1 4.1 103%
8 8 537.6 8.2 102%
16 16 1052.7 16.0 100%
SUN V65X (XEON,3200,LINUX) 6.1 serial 1 68.3 N/A N/A
1 1 67.6 1.0 100%
2 1 114.2 1.7 84%