... mixing of the message-passing programming model with multithread-ing on a single multicore chip or SMP node is becoming increasingly important.The MPI-2 Standard has clearly defined the interaction ... Worringen Jack Dongarra (Eds.) Recent Advances in Parallel Virtual Machineand Message PassingInterface13th European PVM/MPI User’s Group MeetingBonn, Germany, September 17-20, 2006Proceedings13Issues ... tuning.When designing, developing, or using a performance tool, one has to decide onwhich instrumentation technique to use. We will cover the main instrumentationtechniques,whichcanbedividedintoeitherstatic,duringcodedevelopment,compi-lation,orlinking,ordynamic,duringexecution.Themostcommoninstrumentationapproachaugmentssourcecodewithcallstospecificinstrumentationlibraries.Dur-ing...