set_intersection

hello,

Is the STL algorithm set_intersection thread safe? I am solving
systems of simultaneous equations where each system's solution is in
the intersection of solution sets for that system. I have 8 systems of
equations on an 8-core shared-memory machine. Each processor will
solve (system) equations assigned to it serially.

The prototype for set_intersection is:
template <class InputIterator1, class InputIterator2, class
OutputIterator>
OutputIterator set_intersection(InputIterator1 first1, InputIterator1
last1,
                                             InputIterator2 first2,
InputIterator2 last2,
                                             OutputIterator result);

If set_intersection is thread safe, how do I use it with
boost::thread?

boost::thread t_obj(boost::bind(set_intersection,  ... )) ??

Thanks.

Mpho

P.S: Would Intel TBB make my life easier here?