numcpus - Prints out the number of CPUs in your system

Certainly works on Linux 2.2+, Solaris 8+, Windows 2k, and Windows XP. Probably should work on AIX, Cray, HP-UX, Tru64 Unix, and the rest...

License

Public Domain. However, if you find it useful, please consider forking out for something on my amazon wishlist

Installation

$ cc -o numcpus numcpus.c

$ mv numcpus /wherever/bin/numcpus

If you have a half-decent make implementation you can probably just run:

$ make numcpus

This technique certainly works with GNU make.

Usage

Just run it and it will print out as much info as it can get on the processor configuration. This varies a lot from platform to platform.

If you know of a way to detect this information on a platform this code does not work on, or you know how to get extended info on a particular platform, please drop me an email. My address is