Accurate CPU count.

[curmudge0n]

Not sure if this is the right place to ask this, but I have a cross-platform app that needs to know the number of processors for licensing purposes.

In linux, I've developed a semi-reliable way of determining the count by grepping /cpu/procinfo and looking for the ht flag.

Anyway, does someone know a method for getting an accurate cpu count in windows? Is using the registry the best bet, or will hyperthreading make that count unreliable too?

Cheers.

 

[AirCon]

I'm not sure whether this is reliable or not. Try use GetSystemInfo API.

Look at the example here:

http://msdn.microsoft.com/library/d...sysinfo/base/getting_hardware_information.asp

-- AirCon --

 

[MKuiper]

On 95/85/ME the number of processors is always 1, even if there are more present, because these OS'es don't support a multiprocessor architecture.
On NT-based systems, there is an environment variable present, it is called NUMBER_OF_PROCESSORS.



Marcel