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-   -   Parallel processing problem ("cores") (http://www.cfd-online.com/Forums/fluent/125690-parallel-processing-problem-cores.html)

cdgatti October 29, 2013 08:05

Parallel processing problem ("cores")
 
Hi,

Working in parallel with the 6.3.26 version of Fluent-t8, with a mesh of 7,000,000 elements, read the mesh and perform the setting of the simulation correctly, but to make the run (iterations) do not work the 8 cores and takes so much!

Someone pass the same? to that is the error?

I hope their views

Thank you very much

flow_CH October 29, 2013 09:39

It maybe you are not using parallel processing. try this: right click on fluent desktop icon, on the fluent path add -tn (n=no of processor in CPU, e.g. -t2). for my computer it's
C:\Fluent.Inc\ntbin\ntx86\fluent.exe -r6.3.26 2d -t3
you should insert this address
C:\Fluent.Inc\ntbin\ntx86\fluent.exe -r6.3.26 2d -t8
If you are modeling 3d insert 3d

vasava October 29, 2013 09:41

Do you have academic license? Those have restrictions about number of nodes you could use.

Are you using any UDF?

cdgatti October 29, 2013 09:54

Thanks for the reply flow_CH.

Now I have the commands as you propose: C: \ Fluent.Inc \ ntbin \ win64 \ fluent.exe 3d-t8-r6.3.26

In fact, I made ​​the partition in 8 correctly, starts with FMG perfect, but when iterating cores do not work.

Any other ideas?

cdgatti October 29, 2013 09:56

Vasava: not an academic license should not have size limitation problem and do not use a UDF.
In addition, some upper size models working properly.

Any other ideas?

cdgatti October 29, 2013 10:04

The model is of a complete vehicle, with ground and rolling wheels. It has two "porous volumes" that model the radiators.


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