Intel has recently released a permissively-licensed OpenMP runtime (http://www.openmprtl.org/ http://www.openmprtl.org/) though, and Intel's compiler team is wo

Intel has recently released a permissively-licensed OpenMP runtime (http://www.openmprtl.org/ http://www.openmprtl.org/) though, and Intel's compiler team is working on OpenMP support (http://software.intel.com/en-us/forums/topic/391189 http://software.intel.com/en-us/forums/topic/391189, slides at http://llvm.org/devmtg/2013-04/bokhanko-bataev-slides.pdf http://llvm.org/devmtg/2013-04/bokhanko-bataev-slides.pdf) in Clang/LLVM using it. I suspect it won't be long before there's parity on this point.