FIRE 2017 CFD solver limited to 8 cores

Paulius · April 19, 2018, 11:51

Hello everyone,

I am trying to run AVL FIRE ESE DIESEL simulation on a 16 thread cpu (I7-7820X) but at the start an error appears saying that licensed number of users already reached. I use a university partnership program floating license. there was no mentioning on limiting by cores in agreement. Maybe I missed something? If someone could point me at the right direction I would be very grateful.

Best Regards,
Paulius

AVL_FIRE_USER · April 24, 2018, 09:13

Hello Paulius,
I suggest to contact ast_license@avl.com they can help you. It could be helpful to provide some infos about your university and maybe you send the license file too.
Then it should be no Problem having your Problem checked.
bye

flotus1 · April 25, 2018, 06:05

Not necessarily relevant to the underlying issue but: running more that 8 threads is probably not a good idea anyway since the CPU only has 8 cores.

Paulius · April 29, 2018, 05:56

Thank You for answers. I contacted the AVL and had the license upgraded. As for cores, I do have hyper threading enabled, so with 8 core license limitation it only allowed 50% (8 out of 16 threads) utilization of the cpu. I was considering disabling hyper threading, but i did some synthetic benchmarks and it seemed to worsen the performance. I haven't done comprehensive testing of Fire with and without hyper threading so if someone did tested this maybe they can share the results.
Once again thanks to everyone for support

April 29, 2018, 05:56	contacted avl	#4
Paulius New Member Join Date: Jan 2014 Posts: 3 Rep Power: 12	Thank You for answers. I contacted the AVL and had the license upgraded. As for cores, I do have hyper threading enabled, so with 8 core license limitation it only allowed 50% (8 out of 16 threads) utilization of the cpu. I was considering disabling hyper threading, but i did some synthetic benchmarks and it seemed to worsen the performance. I haven't done comprehensive testing of Fire with and without hyper threading so if someone did tested this maybe they can share the results. Once again thanks to everyone for support

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April 24, 2018, 09:13		#2
AVL_FIRE_USER New Member AVL Member Join Date: Aug 2012 Location: Graz/AT Posts: 4 Rep Power: 13	Hello Paulius, I suggest to contact ast_license@avl.com they can help you. It could be helpful to provide some infos about your university and maybe you send the license file too. Then it should be no Problem having your Problem checked. bye

April 25, 2018, 06:05		#3
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,399 Rep Power: 46	Not necessarily relevant to the underlying issue but: running more that 8 threads is probably not a good idea anyway since the CPU only has 8 cores.