I haven't used it for this purpose but I saw it demo'ed at OSCON this year and it was pretty impressive: the Eclipse Parallel Tools Platform. It includes some of the tools I use for debugging/profiling and the implementation is pretty good. Java/Enormous/OSS/impressive http://www.eclipse.org/ptp/ On Tuesday 09 October 2007, Scott Brunza wrote: > I've been dabbling with Xgrid and open-MPI (C/C++) for the last > number of months, and am curious if there are any recommended > debuggers for parallel apps. Can the Xcode debugger grok MPI? > I've seen TotalView and a few other commercial parallel debuggers, > but they cost $$$$. I'm looking for something that will handle > parallel code for little to no cost. Open source? > > Thx, > Scott > > > --- Let us all bask in television's warm glowing warming glow --- > Scott Brunza 860.326.3637 scottso at sonalysts.com -- Harry Mangalam - Research Computing, NACS, E2148, Engineering Gateway, UC Irvine 92697 949 824 0084(o), 949 285 4487(c) harry.mangalam at uci.edu