On Tue, Apr 07, 2009 at 12:00:55PM -0700, Mostyn Lewis wrote: > Steve, > > Did you rebuild 1.2.9? As I see you have static libraries, maybe there's > a lurking phthread or something else that may have changed over time? > > DM
Yes. I downloaded 1.2.9, 1.3, and 1.3.1, all within minutes of each other. All are configured with --enable-static --disable-shared. Each is installed in its own directory under /usr/local and I use full patch names to mpicc and mpiexec. I just rebuilt 1.3.1 without --enable-static --disable-shared. There is no change in performance. 1.3.1 is a factor of 10 slower than 1.2.9 with messages of ~10KB and smaller. I've used svn to grab trunk. Once I determine how to build the trunk, I'll do a binary search to see if I can identify the revision where the problem first occurs. -- Steve
