On 01/08/2012 11:39 AM, Yigit Turgut wrote:
screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
timer = pygame.time.Clock()
white = True
start = time.time()
end = time.time() - start
end2= time.time() - start
def test1():
global end
global white
while(end<5):
end = time.time() - start
timer.tick(4) #FPS
screen.fill((255,255,255) if white else (0, 0, 0))
white = not white
pygame.display.update()
def test2():
global end2
while(end2<5):
end2 = time.time() - start
print end2
ppservers = ()
job_server = pp.Server(ppservers=ppservers)
job1 = job_server.submit(test1, (), globals=globals())
job2 = job_server.submit(test2, (), globals=globals())
result = job1()
result2 = job2()
print result2
job_server.print_stats()
This *supposed to* print values of 'end' and simultaneously execute
test1. Eventhough I set globals parameter and nothing seems to be
wrong this code generates the following traceback ;
Starting pp with 2 workers
An error has occured during the function execution
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/ppworker.py", line 90, in run
__result = __f(*__args)
File "<string>", line 4, in test1
NameError: global name 'end' is not defined
An error has occured during the function execution
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/ppworker.py", line 90, in run
__result = __f(*__args)
File "<string>", line 3, in test2
NameError: global name 'end2' is not defined
How can this be, what am I missing ?
I don't see anything on the http://www.parallelpython.com
<http://www.parallelpython.com/> website that indicates how it handles
globals. Remember this is creating a separate process, so it can't
literally share the globals you have. i would have expected it to
pickle them when you say globals=globals(), but I dunno. In any case, I
can't see any value in making end global with the "global" statement.
I'd move the end= line inside the function, and forget about making it
global.
The other thing you don't supply is a list of functions that might be
called by your function. See the depfuncs argument. It probably
handles all the system libraries, but I can't see how it'd be expected
to handle pygame.
With the limited information supplied by the website, I'd experiment
first with simpler things. Make two functions that are self-contained,
and try them first. No global statements, and no calls to pygame.
After that much worked, then I'd try adding arguments, and then return
values.
Then i'd try calling separate functions (declaring them in depfuncs).
And finally I'd try some 3rd party library.
--
DaveA
--
http://mail.python.org/mailman/listinfo/python-list
