Cross platform way of finding number of processors on a machine?
Lawrence Oluyede
raims at dot.com
Sat Oct 6 06:45:16 EDT 2007
John <weekender_ny at yahoo.com> wrote:
> Is there a way to find the number of processors on a machine (on linux/
> windows/macos/cygwin) using python code (using the same code/cross
> platform code)?
>From processing <http://cheeseshop.python.org/pypi/processing/0.34> :
def cpuCount():
'''
Returns the number of CPUs in the system
'''
if sys.platform == 'win32':
try:
num = int(os.environ['NUMBER_OF_PROCESSORS'])
except (ValueError, KeyError):
pass
elif sys.platform == 'darwin':
try:
num = int(os.popen('sysctl -n hw.ncpu').read())
except ValueError:
pass
else:
try:
num = os.sysconf('SC_NPROCESSORS_ONLN')
except (ValueError, OSError, AttributeError):
pass
if num >= 1:
return num
else:
raise NotImplementedError
--
Lawrence, oluyede.org - neropercaso.it
"It is difficult to get a man to understand
something when his salary depends on not
understanding it" - Upton Sinclair
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