Dumb Question: i7 Core Matching

[Tobit]

This may or may not be a dumb question but is there a way, on an i7, to identify which parent core is linked to it's hyper-threaded sibling? Say the 8 cores are labeled 0 - 7. Would core 0 and core 4 be one pair and so on or is it core 0 and 1 or does it not work this way at all?

 

[Kendrak]

This would be good to know to set affinities if you wanted to use just one core and it's VT to run a program.

 

[Tobit]

This would be good to know to set affinities if you wanted to use just one core and it's VT to run a program.

Yeah, this is why I am curious. I have an application I'd like to lock to two real cores and their matching HT cores.

 

[Mr. Pedantic]

Threads 0 & 4 share a core. So do 1 & 5, 2 & 6, and 3 & 7.

 

[nitrobass24]

The latest version of Bill2's does this for you automagically.

If you want to use other proggies for affinity then mr pedantic is correct.

Hope this helps

 

[Tobit]

Excellent, Mr. P confirms what I was thinking. Thanks.