[Users] running CFD toolkit in Cactus on a IBM Bluegene/L computer

[Peter van Marion - LR]

Dear all,

I am currently involved in a project at Delft University of Technology called superbus, this is a high speed vehicle for public transport. In order for this vehicle to drive at this high speed an efficient aerodynamic shape is needed. The right shape for this is to be found by CFD and wind tunnel testing. 

For our CFD calculations we are able to use a IBM Bluegene/L computer. The problem here is that we have not been able to get hold of the right software to run any CFD simulations on this computer. Apparantely there is software available at the established commercial CFD software companies, but they cannot have any (license) control over it so they do not want to support this platform. So I searched the internet and found the www.CactusCode.org website, which has (on first inspection) the capability to run on a Bluegene/L machine and do CFD simulations.

Now my question is: Is there anyone who has run a CFD simulation on a Bluegene/L machine before? Since I am kind of a newby to this cactus code and its thorns, I am also interested in any experiences with the CFD code itself, what can it do and what are its limitations (what turbulence models are in there)? Did anyone do any benchmarks with other (commercial) CFD codes?
Also I would like to know more about how to get the cactus code running on Bluegene/L as well, this will save me a tremendous amount of work (because both the code and the machine are new to me).

Well a lot of questions, hopefully you can help me out with this. Your response is greatly appreciated!

best regards,

Peter
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