CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   GPU and LBM (http://www.cfd-online.com/Forums/main/16240-gpu-lbm.html)

jughead January 21, 2009 07:13

GPU and LBM
 
Has anyone tried to program the Lattice Boltzmann method using a GPU library?


Tom January 21, 2009 08:01

Re: GPU and LBM
 
I haven't but people who program computer games have

http://www.cg.tuwien.ac.at/research/...er_2008_FluSi/

jughead January 21, 2009 14:07

Re: GPU and LBM
 
Soon we will use crysis engine to simulate CFD... :)


Tom January 22, 2009 05:59

Re: GPU and LBM
 
or maybe play "uncharted: Dake's fortune" on this

http://www.top500.org/system/9707


jughead January 22, 2009 07:19

Re: GPU and LBM
 
That would be a waste of resources.

Tom January 22, 2009 08:44

Re: GPU and LBM
 
There's always this, an even greater waste of resources :)

http://www3.interscience.wiley.com/j...39484/abstract

(not LBM though)

chandra January 23, 2009 08:56

Re: GPU and LBM
 
Well, I'm not an expert in the Lattice Boltzmann method but it it requires a huge amount of data to manipulate, it is never a good idea to use GPU. GPU can hold very limited amount of data itself and so, usually, its speed gets very slow compared to a fast CPU.

However, the data to manipulate is small, e.g. breaking some encryption, it GPU is very fast and works excellent.

I hope u can decide now if u should choose GPU or CPU for ur computation.


Georg February 15, 2009 10:31

Re: GPU and LBM
 
I disagree! Check out papers 22 and 23 on this page: http://www.irmb.bau.tu-bs.de/institu...-tolke_de.html


All times are GMT -4. The time now is 18:46.