[Boost-users] Create A Boost Thread for each HW Thread?

Subject: [Boost-users] Create A Boost Thread for each HW Thread?
From: Brad (boost_at_[hidden])
Date: 2011-06-09 21:13:02

What's the proper way to start a boost thread for each hardware thread
available? I can do this... but it is clunky and does not scale
(especially when there are lots of cores):

const unsigned int hwt()
{
          const unsigned int t = boost::thread::hardware_concurrency();
          return t;
}

if ( t == 2 )
{
          boost::thread _01( task, thread_data, St );
          boost::thread _02( task, thread_data, St );

          _01.join();
          _02.join();
}

if ( t == 4 )
{
          boost::thread _01( task, thread_data, St );
          boost::thread _02( task, thread_data, St );
          boost::thread _03( task, thread_data, St );
          boost::thread _04( task, thread_data, St );

          _01.join();
          _02.join();
          _03.join();
          _04.join();
}

It seems that a for loop (or something similar) could be used to start
the same number of boost threads as there are HWTs.

Could someone point me in the right direction?

Thanks,

Brad