How to find on which CPU&Core my thread is running

Question

I have an app that use HPC, and it automatically assign each thread to specific CPU and Cores on the HPC. I would like to know to which CPU and Core my thread is assigned to.

GetCurrentProcessorNumber return the Core ID which my thread is run on, and I wish to know on which CPU it runs as well.

My HPC has at least 2 CPU's and 10 cores on each CPU

How can I do that?

Thanks!

http://stackoverflow.com/a/3367070/1870760 threads switch cores. — Hatted Rooster, May 03 '16 at 13:32
Thanks @dandan78. Can you please mention which part can be improved? — Rotem.O, May 03 '16 at 13:53
Possible duplicate of [Identify processor (core) is used by specific thread](http://stackoverflow.com/questions/3366932/identify-processor-core-is-used-by-specific-thread) — IInspectable, May 03 '16 at 13:58

score 1 · Accepted Answer · edited May 03 '16 at 13:36

1

You might want to check the GetCurrentProcessorNumber API (or GetCurrentProcessorNumberEx if you have more than 64 logical processors).

edited May 03 '16 at 13:36

IInspectable

46,945
8
85
181

answered May 03 '16 at 13:32

Adrian Roman

534
4
8

Thanks, that has solved one issue I have. Do you know how can I get the CPU the thread is run on? – Rotem.O May 03 '16 at 15:40
Just divide by the number of cores/cpu and keep the integer result. – Adrian Roman May 03 '16 at 16:00

How to find on which CPU&Core my thread is running

1 Answers1