Cores/HTT identification for different Intel CPUs (Including Itanium) - how?

[Alexander_Dubinin]

Hello,

I trying to find information about correct CPU identification - including counting physical CPUs, logical CPUs, cores, HTT capabilities forfollowing Intel CPUs:

IA32, IA32 with EM64T, IA64, and later - Atom.

So far the only clear and partially working (partially - due to dependency on CPU affinity) algorithm have been found only for IA32 systems (OS-es, modes).

What is the correct way to do that for 64-bit systems, like Itanium and IA32 with EM64T extension?

Would be excellent to have code examples for both Unix(Linux, FreeBSD, etc.) and Windows.

Regards,
Alexander

[Thomas_W_Intel]

Alexander,

For Intel 64, there is an article that describes the metholodogy: http://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration. It does not cover Itanium though.

Kind regards

Thomas

[Dave_Thompson]

The link doesn't work any more!

[AaronTersteeg]

Please try this link. Let us know if your still having issues.

http://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration/