How does Intel TBB choose the number of threads to used for a parallel section?
Is there some kind of specification available?
A:
Documetation says just "dependent on hardware configuration". Possibly it just number of CPU cores available.
blaze
2010-09-24 12:23:00
A:
When you create the scheduler, you can specify the number of threads as
tbb::task_scheduler_init init(nthread);
else you can use
tbb::task_scheduler_init init(tbb::task_scheduler_init::automatic);
In this case, tbb scheduler creates as many threads as your CPU cores
Manny
2010-10-29 20:31:33