How to assure a multithreaded program run by ALL cores on multicore

[dtustudy68]

Hi,

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, also support hyperthreading)
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 ?

Any help is really appreciated.

thanks

[meduzapat]

to use extra CPUs/cores your program need to be really heavy and use a lot of resources, other case 1 CPU / CORE can do the task with no problem