ANSYS 17.2 CFX Benchmark External Flow Over a LeMans Car

By: David Mastel
– November 18, 2016
Categories:

Wow? yet another ANSYS Bench marking blog post? I know, but I have had four blog posts in limbo for months. There is no better time than now and since it is Friday. Time to knock out another one of these fine looking ANSYS 17.2 bench marking results of my list!

The ANSYS 17.2 CFX External Flow Over a LeMans Car Test Case

…dun dun dah!

On The Fast Track! ANSYS 17.2
On The Fast Track! ANSYS 17.2

The ANSYS CFX test case has approximately 1.8 million nodes

  • 10 million elements, all tetrahedral
  • Solves compressible fluid flow with heat transfer using the k-epsilon turbulence model.

ANSYS Benchmark Test Case Information

  • ANSYS HPC Licensing Packs required for this benchmark
    • I used (3) HPC Packs to unlock all 56 cores of the CUBE a56i.
    • The fastest solve time goes to the CUBE a56i – Boom!
      • From start to finish a total of forty-six (46) ticks on the clock on the wall occurred.
      • A total of fifty-five (55) cores in use between two twenty-eight (28) core nodes.
      • Windows 2012 R2 Standard Edition w/HPC update 3
      • MS-MPI v7.1
      • ANSYS CFX 17.2
  • Please contact your local ANSYS Software Sales Representative for more information on purchasing ANSYS HPC Packs. You too may be able to speed up your solve times by unlocking additional compute power!
  • What is a CUBE? For more information regarding our Numerical Simulation workstations and clusters please contact our CUBE Hardware Sales Representative at SALES@PADTINC.COM Designed, tested and configured within your budget. We are happy to help and to listen to your specific needs.

Figure 1 – ANSYS CFX benchmark data for the tetrahedral, 10 million elements External Flow Over a LeMans Car Test Case

ANSYS CFX Benchmark Data
ANSYS CFX Benchmark Data

ANSYS CFX Test Case Details – Click Here for more information on this benchmark

External Flow Over a LeMans Car
Number of nodes1,864,025
Element typeTetrahedral
Modelsk-epsilon Turbulence, Heat Transfer
SolverCoupled Implicit

The CPU Information

The benchmark data is derived off of the running through the ANSYS CFX External Flow Over a LeMans Car test case. Take a minute or three to look at how these CPU’s perform with one of the very latest ANSYS releases, ANSYS Release 17.1 & ANSYS Release 17.2.

Wall Clock Time!

I have focused and tuned the numerical simulation machines with a focus on wall clock time for years now. What is funny if you ask Eric Miller we were talking about wall clock times this morning.

What is wall clock time? Simply put –> How does the solve time FEEL to the engineer…..yes, i just equated a feeling to a non-human event. Ah yes, to feel…oh and  I was reminded of old Van Halen song where David Lee Roth says.

Oh man, I think the clock is slow.

  I don’t feel tardy.

Class Dismissed!”

The CUBE phenomenon

CUBE a56i Appliance – Windows 2012 R2 Standard w/HPC
1U CUBE APPLIANCE (2 x 28)
4 x 14c @2.6GHz/ea – Intel® Xeon® e5-2690 V4
Dual Socket motherboard
256GB DDR4-2400 MHz LRDIMM
4 x 600GB SAS3 15k RPM
56Gbps Infiniband FDR CPU High Speed Interconnect
10Gbps Ethernet Low Latency
CUBE w32i Workstation – Windows 10 Professional
1 x 4U CUBE APPLIANCE
2 x 16c @2.6GHz/ea – Intel® Xeon® e5-2697a V4
Dual Socket motherboard
256GB DDR4-2400 MHz LRDIMM
2 x 600GB SAS3 15k RPM
NVIDIA QUADRO M4000

It Is All About The Data

 11/17/2016

PADT, Inc. – Tempe, AZ

ANSYS CFX 17.1ANSYS CFX 17.1ANSYS CFX 17.2
Total wall clock timeCoresCUBE w32iCUBE a56iCUBE a56i
2555636609
4304332332
8153191191
16105120120
24788484
32736868
3806159
4205555
4805151
5205248
5504746
5605251

Picture Sharing Time!

Check out the pictures below of the Microsoft Server 2012 R2  HPC Cluster Manager.

I used the Windows Server 2012 R2  on both of the two compute nodes that make up the CUBE a56i.

Microsoft 2012 R2 w/HPC – is very quick, and oh so very powerful!

winhpc-cfx-56c-cpu

Windows 2012 HPC
Microsoft Windows 2012 R2 HPC. It is time…
INTEL XEON e5-2690 v4
The INTEL XEON e5-2690 v4 loves the turbo mode vrrooom It is time…

Please be safe out there in the wilds, you are all dismissed for the weekend!

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