Using multiple processors

[n00b]

Le 24/12/2012 05:18, thedeemon a écrit :
> On Sunday, 23 December 2012 at 08:00:56 UTC, n00b wrote:
>> Hello.
>> My program has a great deal of computation to do, so I thought I'd
>> create several threads in order to use multiple processors. It worked
>> fine with a simple "test" program, but when I try to do this with the
>> real program, only 1 processor is used.
>
> How much memory allocation is happening there? High allocation rate and
> often GCs can kill parallelism since they're happening with a lock.
> Anyway, too hard to tell anything certain without knowing what your
> program is doing.


I tried to disable GC and reduce memory allocation. It didn't work but I 
guess allocation rate is still pretty high, I'll try to reduce it even 
more, and post more details if it still doesn't work.
Thanks for your answer.