On 03/17/10 13:30, Tim Arnold wrote:
Hi,
I'm checking to see if multiprocessing works on freebsd for any
version of python. My server is about to get upgraded from 6.3 to 8.0
and I'd sure like to be able to use multiprocessing.
I think the minimal test would be:
---------------------
import multiprocessing
q = multiprocessing.Queue()
---------------------
with 6.3, I get
File "/usr/local/lib/python2.6/multiprocessing/__init__.py", line
212, in Queue
from multiprocessing.queues import Queue
File "/usr/local/lib/python2.6/multiprocessing/queues.py", line 22,
in<module>
from multiprocessing.synchronize import Lock, BoundedSemaphore,
Semaphore, Condition
File "/usr/local/lib/python2.6/multiprocessing/synchronize.py", line
33, in<module>
" function, see issue 3770.")
ImportError: This platform lacks a functioning sem_open
implementation, therefore, the required synchronization primitives
needed will not function, see issue 3770.
Build mine from ports, with the following options (notice SEM & PTH):
[mar...@aspire8930 /usr/home/martin]$ cat /var/db/ports/python26/options
# This file is auto-generated by 'make config'.
# No user-servicable parts inside!
# Options for python26-2.6.4
_OPTIONS_READ=python26-2.6.4
WITH_THREADS=true
WITHOUT_HUGE_STACK_SIZE=true
WITH_SEM=true
WITH_PTH=true
WITH_UCS4=true
WITH_PYMALLOC=true
WITH_IPV6=true
WITHOUT_FPECTL=true
[mar...@aspire8930 /usr/home/martin]$ uname -a
FreeBSD aspire8930 8.0-STABLE FreeBSD 8.0-STABLE #3: Wed Feb 3 17:01:18
GMT 2010 mar...@aspire8930:/usr/obj/usr/src/sys/ASPIRE8930 amd64
[mar...@aspire8930 /usr/home/martin]$ python
Python 2.6.4 (r264:75706, Mar 17 2010, 18:44:24)
[GCC 4.2.1 20070719 [FreeBSD]] on freebsd8
Type "help", "copyright", "credits" or "license" for more information.
>>> import multiprocessing as mp
>>> queue = mp.Queue()
>>>
hth
--
mph
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