Hi All, My application uses to 3.4.2 gcc for building its code base. As we are looking to upgrade the compiler version. I would like to know is ther some thing like CMT option in gcc which can support core multi threaded optimization so that they run more effectively on multi core systems. If there is something like that can you plz suggest me at what stable version of gcc can I find that flag. All the code in our application deals majority of c++ code and some java code. to build both code-bases we use gcc only. Thanks in advance, -Vikas.