Ansys workbench HPC

tailele · November 21, 2016, 05:10

Good morning , i have a big problem with my workstation . This mounth i have buy a new pc with 2 xeon e5 2658 v3 with 24 vores and 48 cores with hyper. But when i try to lunch a simulation with a simulation with statical structural solver , i see the cpu usage at only 4 % with 2 cpus that work...I try to find a solution , i read many post with hpc problem , but with no results. I see that my ansys have one hpc lincense , could anyone tell me a procedure for use all the cores in workbench static structural?

tailele · November 22, 2016, 05:43

Ok, i found the solution , when i open the mechanical tub , under tools , there is solver option and i can set the cores'number and the gpu model. Now i have another problem , with my cpu ( 2xe5 2658 ) i have 24 phisic's cores and 24 logic cores...But if i set 48 cores , the usage goes only at 50%....Is there anyone that could help me?

Drunken_SheeP · November 23, 2016, 16:42

Hei, you have only 24 physical cores. Hyperthreading will not increase the speed of your calculations, more likely to slow them actually down.

tailele · November 24, 2016, 01:44

Quote:

Originally Posted by Drunken_SheeP

Hei, you have only 24 physical cores. Hyperthreading will not increase the speed of your calculations, more likely to slow them actually down.

Ah ok , i dont know it, another think, i read that the gpu could give a support. Now i have a gtx 970, could it function?

Gweher · November 25, 2016, 08:16

Not all the GPU are supported. For the Nvidia cards you should have either the Quadro or the Tesla series. You can find a description of the tested and recommended graphic cards bellow:

http://www.ansys.com/-/media/Ansys/c...-172.pdf?la=en

Not to get into too much details, but the Quadro / Tesla have a lot more memory and have double precision plus are more “thoroughly” tested.

You can still use a GTX for post processing, but not for calculation.

November 21, 2016, 05:10	Ansys workbench HPC	#1
tailele New Member Join Date: Sep 2012 Posts: 26 Rep Power: 14	Good morning , i have a big problem with my workstation . This mounth i have buy a new pc with 2 xeon e5 2658 v3 with 24 vores and 48 cores with hyper. But when i try to lunch a simulation with a simulation with statical structural solver , i see the cpu usage at only 4 % with 2 cpus that work...I try to find a solution , i read many post with hpc problem , but with no results. I see that my ansys have one hpc lincense , could anyone tell me a procedure for use all the cores in workbench static structural?

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November 22, 2016, 05:43		#2
tailele New Member Join Date: Sep 2012 Posts: 26 Rep Power: 14	Ok, i found the solution , when i open the mechanical tub , under tools , there is solver option and i can set the cores'number and the gpu model. Now i have another problem , with my cpu ( 2xe5 2658 ) i have 24 phisic's cores and 24 logic cores...But if i set 48 cores , the usage goes only at 50%....Is there anyone that could help me?

November 23, 2016, 16:42		#3
Drunken_SheeP New Member asdfad Join Date: Jul 2012 Location: Norway/Germany Posts: 13 Rep Power: 14	Hei, you have only 24 physical cores. Hyperthreading will not increase the speed of your calculations, more likely to slow them actually down.

November 25, 2016, 08:16		#5
Gweher Senior Member Gwenael H. Join Date: Mar 2011 Location: Switzerland Posts: 392 Rep Power: 20	Not all the GPU are supported. For the Nvidia cards you should have either the Quadro or the Tesla series. You can find a description of the tested and recommended graphic cards bellow: http://www.ansys.com/-/media/Ansys/c...-172.pdf?la=en Not to get into too much details, but the Quadro / Tesla have a lot more memory and have double precision plus are more “thoroughly” tested. You can still use a GTX for post processing, but not for calculation.