On Mon, Apr 30, 2012 at 11:42 AM, Andreas Kloeckner <lists(a)informa.tiker.net&gt; wrote: > FWIW, your program finishes just fine for me, using AMD's CPU CL and > Intel's most recent '2012' CPU CL package. I don't have their version > 1.5 around any more, but if there was a hang with that version, I'd > imagine that would have been a bug that they've resolved. I just removed Intel's 1.5 SDK and replaced it with 2012, and removed and rebuilt PyOpenCL. I still have this hang. I'm not sure what else to try next.