Can Parallel Python run on a muti-CPU server ?

[Martin P. Hellwig]

fdu.xiaojf at gmail.com wrote:
> fdu.xiaojf at gmail.com wrote:
>> Hi all,
>>
>> I'm interested in Parallel Python and I learned from the website of 
>> Parallel Python
>> that it can run on SMP and clusters. But can it run on a our muti-CPU 
>> server ?
>> We are running an origin3800 server with 128 CPUs.
>>
>> Thanks.
>>   
> I have tested that at least it could run sum_primes.py on our server.
> 
> But it seems Parallel Python just launch one python process for
> each job, and if I let it use 12 CPUs for 8 jobs, Parallel Python
> launches 12 python processes, 4 of which just sleep until all 8 jobs
> are done.

I've just downloaded it ,having a couple of M-CPU machines, it's quite 
interesting. At this moment I think that you should not see it as 
'magical distribution' of your processing pool but more like the way 
threads work. So every function will stay on it's CPU while executing 
and will not use the process power of another CPU if available.

So I guess you have to fine grain your program to take the advantage of 
multiple CPU's, just like you would do if you had 'real' threads.

-- 
mph