thanks for your reply. My program needs to run many (about 10,000+) computing tasks. Each task's run time is very very short (< 0.1 second or even less). At each iteration, all these tasks are run in parallel. Some of them need to exchange some data (it is very small) and then go on. I want to keep all 144 cores as busy as possible so that my program can be done as fast as possible. So, I want to associate each task with a distinct thread and schedule threads as many as possible. Also, try yo make the workload balance among these cores. How can I do that from the point of programming ? Any help is really appreciated. thanks
From: boost.lists@gmail.com Date: Sun, 14 Aug 2011 20:29:13 +0300 To: boost-users@lists.boost.org Subject: Re: [Boost-users] boost multithread use all cores in parallel ?
How to make sure that a multithreaded C++ program is run by ALL cores on a multicore server to do computing in parallel physically (not logically).
I have a multicore server, which has 24 CPUs, each of which has 6 cores.
It is Intel Xeon X5650 2.67GHz cpu cores : 6 (support 6 threads) cpu MHz : 1596.000
totally, I have 24 * 6 = 144 cores.
I designed a multithreaded C++ program with boost/thread.
How to make sure that my program is run by all 144 cores ?
It's OS thread scheduler who cares about that. But your program has to have 144 threads to utilise all the 144 cores. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users