CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Using Fluent's Parallel Solver (http://www.cfd-online.com/Forums/fluent/33173-using-fluents-parallel-solver.html)

Jonathan March 5, 2004 10:01

Using Fluent's Parallel Solver
 
Hello all,

I have an 8 node linux (Red Hat 7.3) cluster that I've used to run parallel programs. I am now trying to run Fluent on this cluster and am not having much success.

I can get Fluent to spawn all the nodes and I can get the domain propertly partitioned, but when I start Iterating, it seems like the only node that has any load is the head node. All the other machines are pretty much idle. Also, the iterations go no faster than they did on my workstation.

I've tried with two different meshes - one approximately 80,000 elements and one 300,000 elements. I don't think these problems are too small.

I have the same problems when I try to run on only 2 process as well.

Any ideas? Thank you,

Jonathan

yoshita March 9, 2004 13:22

Re: Using Fluent's Parallel Solver
 
Hello John! If you post your email I can help you.

Ugo March 12, 2004 10:05

Re: Using Fluent's Parallel Solver
 
Hi, yoshita; I'm interested in parallel processing optimization: Your help would be very appreciated! Could you post some informations on the subject?

thanks in advance

alven299 December 8, 2009 05:41

Quote:

Originally Posted by yoshita
;110988
Hello John! If you post your email I can help you.

Hi Yoshita, I think I am facing a similar problem like Jonathan's. Could you provide me with information on how to deal with it? here is my email address: alven299@yahoo.com

cesarcg February 16, 2013 20:38

Quote:

Originally Posted by yoshita
;110988
Hello John! If you post your email I can help you.

Hi Yoshita,

I'm facing a similar problem as Jonathan using Windows 7 and Fluent 14. All the nodes are spawned but while iterating it is taking too long between iterations. I assume that this is an issue of communication between the nodes. I hope you can give me an advice.

Thanks in advance,
CÚsar
ccapeg@gmail.com


All times are GMT -4. The time now is 09:08.