How to get the number of cores in Win32?

Question

I am writing a program in C on windows that should run as many threads as there are available kernels. But I do not know how to get the number of cores. Any ideas?

Answer 1

You can call GetSystemInfothe WinAPI function; it returns a structure SYSTEM_INFOthat has the number of processors (the number of cores in a system with multiple cores).

Answer 2

You can read the environment variable NUMBER_OF_PROCESSORS.

Answer 3

, .NET C, :

Answer 4

"cmd" Windows "cmd.exe". :

WMIC CPU Get /Format:List

"NumberOfCores" "NumberOfLogicalProcessors". , . , :

NumberOfLogicalProcessors = NumberOfCores * .

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