Hyper-Threading Technology with 2012

[bannecke]

Hello,

just a short question regarding the 2012 Version.

Is it still recommended to turn Hyper-Threading off for the best performance?

Regards

Boris 

[S.LI]

YES.

2012 and previous versions are enhanced by multi-thread tech, which has better performance with Hyper-threading off.

[S.LI]

PS:

Do you have any benchmark data for Hyper-threading on and off?

Thanks.

[bannecke]

Me? No sorry.

I was just asking if it may be a good idea to switch HT on, because in the "new features" an improved multi core support was announced.

Anyway - thank you for the quick response.

Regards

Boris

[SaMurgie · Accepted solution]

It is still typically best to turn off hyper-threading with any compute intensive application such as Adsk Sim Mech.  While I have seen a couple of benchmarks that showed improvement, in most cases, the analysis takes longer.  The cases where HT actually helped were small MES models that had many, many time-steps. 

Plus every release we are adding additional multi-core support.

I, too, recommend turning HT off.

[Dan_Margulius]

Hello,

How do i turn off HT ?

Thanks,

Dan

[bannecke]

In your BIOS setting.

There should be a tree "advanced settings" or something similar.

You find the settings when you pres "del" or "F8" during the boot screen, depending on the manufacurer.

[Dan_Margulius]

Thank you for the answer

[S.LI]

I happend to have a simple 2012 benchmark about HT on/off.

HT on is around 40% slower than HT off.

My system is win7 64bit with Intel i7 12 cores (24 after HT on).

[guestpost66.3]

your article is so informative and very helpful.