OpenMP 3.1 specification released
By Darryl Gove on Jul 11, 2011
OpenMP is a great way to produce parallel applications with the minimal amount of work. The 3.1 specification came out a couple of days ago. As should be apparent from the version number, its more incremental than significant. The significant changes I see are:
- Support for min and max reductions in C/C++. This was a frustrating omission from the previous versions, so I'm pleased to see that fixed here.
- Support for thread binding. The specification introduces
OMP_PROC_BINDwhich binds threads to cores. This is rather similar to the original
SUNW_MP_PROCBINDin Studio, which only took true or false, more recent compilers allow a much finer granularity of control. Still "true" or "false" is a good start!