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-   -   How to calculate the computational resource requirement? (http://www.cfd-online.com/Forums/main/98419-how-calculate-computational-resource-requirement.html)

k_k March 10, 2012 10:21

How to calculate the computational resource requirement?
 
Hello,

I have a model with 10 million cells, if the solution takes 3000 iterations to converge, how do I estimate the computational resource requirement (number of cores, memory RAM) so that I get the solution in n hours (say 12)?

Thanks

Kind Regards

arjun March 10, 2012 17:18

Quote:

Originally Posted by k_k (Post 348699)
Hello,

I have a model with 10 million cells, if the solution takes 3000 iterations to converge, how do I estimate the computational resource requirement (number of cores, memory RAM) so that I get the solution in n hours (say 12)?

Thanks

Kind Regards


A typical segreggated solver usually takes about 0.6 - 0.8 GB per million cells. So max you would need is 10GB to run this case.

Which solver are you going to use.

k_k March 11, 2012 05:20

Thanks Arjun, I plan to use Numeca or Fluent.

arjun March 11, 2012 08:57

Quote:

Originally Posted by k_k (Post 348758)
Thanks Arjun, I plan to use Numeca or Fluent.


Till with fluent 6.3 what i wrote was valid. I have not used recent versions of Fluent but it will not be much off.

Good luck.


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