There is a good paper on the allocator: The Foundations for Scalable Multi-core Software in Intel Threading Building Blocks My limited experience: I overloaded the global new/delete with the tbb::scalable_allocator for my AI application. But there was little change in the time profile. I didn’t compare the memory usage though.
but do threading library even need to worry about the allocation of threads to cores. isn’t this a job of operating system? So what is the real Benifit of using TBB over Boost? You are right, a threading library usually should not care about mapping threads to cores. And TBB does not. TBB operates with … Read more
I haven’t used TBB extensively, but my impression is that they complement each other more than competing. TBB provides threadsafe containers and some parallel algorithms, whereas OpenMP is more of a way to parallelise existing code. Personally I’ve found OpenMP very easy to drop into existing code where you have a parallelisable loop or bunch … Read more