ANSYS 17.2 CFX Benchmark External Flow Over a LeMans Car

Categories: Ansys

Tags: ansys benchmarks, HPC performance metrics, INTEL XEON e5-269, INTEL XEON e5-2690 v4

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!

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

External Flow Over a LeMans Car
Number of nodes	1,864,025
Element type	Tetrahedral
Models	k-epsilon Turbulence, Heat Transfer
Solver	Coupled 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.

Intel® Xeon® e5-2697a V4
Intel® Xeon® e5-2690 V4

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 17.1	ANSYS CFX 17.1	ANSYS CFX 17.2
Total wall clock time	Cores	CUBE w32i	CUBE a56i	CUBE a56i
	2	555	636	609
	4	304	332	332
	8	153	191	191
	16	105	120	120
	24	78	84	84
	32	73	68	68
	38	0	61	59
	42	0	55	55
	48	0	51	51
	52	0	52	48
	55	0	47	46
	56	0	52	51