Benchmarks STAR-CD V4.02
and officially supported versions thereafter within the V4.02+ range.
Last Updated: October 30th, 2007

Contact : performance@uk.cd-adapco.com

 

OVERVIEW

Presented are a suite of testcases, selected to demonstrate the versatility and robustness of STAR-CD in CFD solutions, and the relative performance on different hardware platforms and different processor configurations. The cases have been selected to be industry representative, and ordered in small ( <1 million cells) , medium (1-2 millions cells) and large cases ( >2 million cells). Please select these cases from the list in the left-hand margin.

RUNNING CRITERIA

• The standard release version of STAR-CD V4.02 and officially supported versions, must be used by the vendor.
  
• Optimized versions may be used, but only if this has also been released to the user.
  
• The vendor must use the supplied input files as is, modification of any input file is not permitted.
  
• These datasets are supplied to vendors under a confidentiality agreement. The vendors may not pass these datasets to any other parties.
  
• Any environment variables used must be reported. A date/time stamp must be used before and after each run, elapsed time (wallclock) in seconds will only be used and reported.
  
• Vendor must report: type of machine, clock rate, amount of memory, OS version, etc and other parameters to identify the hardware configuration. A script named "detect" will be provided to supply this information.
  
• Vendors may run in either 32 or 64 bit arithmetic precision, as long as it is reported and the run executes in a normal manner.

REPORTING FORMAT

• The reporting format will be in alphabetical order of vendor name, seperated by machine type.
  
• Number of processors, the number of processors used for execution of this run. Values range from 1 - "N".
  
• Reported times will be in elapsed (wallclock) seconds.
  
• Speedup factor is the ratio achieved by dividing the elapsed time for a single-processor run, by the elapsed time achieved on "N" number of processors. A speedup factor equal to the number of processors used is refered to as Linear speedup. Super-linear speedup can occur when the speedup factor is greater than the number of processors used, and can be typically attributed to larger amounts of available cache when "N" processors are used.

DISCLAIMER

The data reported here has been supplied by the vendors of the respective hardware platforms listed, and though checked by the CD adapco Group, we can make no warranites, implied or otherwise, with regard to the accuracy of the data. In addition the CD adapco Group makes no recommendations as to the suitability or preference of one hardware platform over another with regards to STAR-CD or any other CD adapco product.