james woodyatt a écrit :

> On 11 Jun 2005, at 00:46, Christophe Raffalli wrote:
>
>>
>> No there is a global mutex for caml thread. The only thing you can do 
>> is have one Caml thread and many C threads running in the same time.
>>
>> This starts really to be an annoying limitation of the Caml runtime 
>> now that you can have easily two dual core processors in one machine 
>> ... (means four CPU)
>
>
> Not for me it isn't-- I gave up cooperative scheduling with Mac OS 9.
>
> Now, when I want concurrent, preëmptive multiprocessing, I call 
> fork(2) [and often exec(2)], like Nature intended.  I don't know why 
> you folks on Win32 platforms continue to put up with such abominable 
> support for POSIX interfaces.
>
>
Does not depend what you use (Posix, win32 threads etc ...), OCaml does 
not support two threads accessing the memory at the same time.