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-   -   Fluent 6.2.16 on cluster saves data files slowly (http://www.cfd-online.com/Forums/fluent/44708-fluent-6-2-16-cluster-saves-data-files-slowly.html)

cle3000 May 15, 2007 06:37

Fluent 6.2.16 on cluster saves data files slowly
 
Hello! I have following problem regarding Fluent on a cluster. The calculations run fine but when I want to save with the autosave command it takes up to 1 hour to save a 70MB large data file. I also get following message in the command window which I never had before:

"Host receiving summary from compute node zero. Writing "/array/clemens/estonia/empty/deck4_vinlet_poutlet-0001.dat"... Host receiving injections from compute nodes. freeing host particles. Done."

Does anybody know what could cause this slow down? Thanks for any help! C.

Bogdan May 18, 2007 06:52

Re: Fluent 6.2.16 on cluster saves data files slow
 
The messages you get on the console are normal, don't be worry about them. Which communicator do you use? try the -pnet option, is not the fastest one in communication, but for writing files in parallel is the best.

cle3000 May 21, 2007 09:54

Re: Fluent 6.2.16 on cluster saves data files slow
 
Thanks for your help!


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