Re: [Boost-users] Using boost::thread to keep all cores busy

Subject: Re: [Boost-users] Using boost::thread to keep all cores busy
From: Internet Retard (webretard_at_[hidden])
Date: 2010-07-26 10:37:39

> using multiple threads in your application it not assure you that both 
> your cores will be used, most likely yes but not 100% sure, unless:
> 1) The threads do not interfere each other
> 2) You did a CPU affinity for each your thread.

Yes. The threads will not share data and will not interact in any way. 

> what you can do is the following pattern:
> 
> 1) Insert your jobs in a thread safe container (or do a wrapper around
>     an std one).
> 2) Launch *all* your threads giving them a reference to the above
>     container.

All at once? What if I have millions of tasks rather than a few? I want to be working on 2 tasks all the time. If my queue is not empty, then as a thread ends, it sees there are more tasks in the queue and gets one.

> 3) Then each thread have to do in the main loop (pseudo code here):
>       Job* job = NULL;
>       while( job = container.extract_job() ) {
>          work on job;
                                               
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