[libdispatch-dev] Does GCD has a "global view" of all running processes?

[Stéphane Letz]

Hi,

After reading several things on GCD on the net, it is not yet clear if  
GCD is mainly a "per process"  library, or is supposed to have a  
"global view" of all processes, so that to allocate "not too much"  
threads in each process, and avoid having a number of threads that  
finally exceed the number of available cores on the machine.

What is the situation?

Thanks

Stephane Letz