Liscense per core or per proceoosr

Shamoon Jamshed · October 21, 2009, 15:07

Hi all

I have some confusion regarding Fluent parallel process.

If we have a single CPU with quad cores it means we have 4 cores. So do we need a single parallel license for that or for separate licenses (each for each core)

Secondly, if I have 8 cores and I give the command fluent 3ddp -t9 it still shows me 9 nodes but technically speaking it should not show that because of physical 8 cores.

-mAx- · October 22, 2009, 01:57

I suppose you need a license per core (need to be confirmed).
Second guess, I assume you can enforce more process on a core

mbeals · October 22, 2009, 11:31

The way I understand it from the documentation is that you need one license for every core. However, I have run it on 8 cores of a cluster with only a 4 seat license, and a process check confirmed that it actually had 8 processes running on 8 different cores.

So you may just have to try it and watch the process tree.

alven299 · October 23, 2009, 22:50

From what I understand, if you have 4 cores, you can run your case using 8 nodes.

October 21, 2009, 15:07	Liscense per core or per proceoosr	#1
Shamoon Jamshed Senior Member Shamoon Jamshed Join Date: Apr 2009 Location: Karachi Posts: 377 Rep Power: 17	Hi all I have some confusion regarding Fluent parallel process. If we have a single CPU with quad cores it means we have 4 cores. So do we need a single parallel license for that or for separate licenses (each for each core) Secondly, if I have 8 cores and I give the command fluent 3ddp -t9 it still shows me 9 nodes but technically speaking it should not show that because of physical 8 cores.

October 22, 2009, 01:57		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	I suppose you need a license per core (need to be confirmed). Second guess, I assume you can enforce more process on a core __________________ In memory of my friend Hervé: CFD engineer & freerider

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October 22, 2009, 11:31		#3
mbeals New Member Matthew Join Date: Apr 2009 Posts: 12 Rep Power: 17	The way I understand it from the documentation is that you need one license for every core. However, I have run it on 8 cores of a cluster with only a 4 seat license, and a process check confirmed that it actually had 8 processes running on 8 different cores. So you may just have to try it and watch the process tree.

October 23, 2009, 22:50		#4
alven299 New Member alven Join Date: Mar 2009 Location: Malaysia Posts: 25 Blog Entries: 1 Rep Power: 17	From what I understand, if you have 4 cores, you can run your case using 8 nodes.