Hello
Can I use openmp in C++ objects' constructors?
What will be done, when there will be a global static object with such constructor?
+1
A:
yes. imagine this to be the same as calling OpenMP function from constructor.
A second point, I do not know, it may depend on implementation. I am fairly certain the pthreads implementation should be okay for global static objects. http://www.terboven.com/download/poster_A0_portrait_neu_formatiert.pdf
Static initialization maybe somewhat difficult to get right, http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.12. keep in mind that static object are initialized before main.
aaa
2010-07-28 16:19:52
When will openmp start threads? At the main() start or before it?
osgx
2010-07-28 17:05:20
@osgx should be whenever parallel region is encountered.Exact thread implementation is implementation dependent (maybe reusable/ single threads)
aaa
2010-07-29 06:44:21