Dynamic Instrumentation of Large-Scale MPI and OpenMP .ppt
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1、04/16/2003,NC State University,1,Dynamic Instrumentation of Large-Scale MPI and OpenMP Applications,Christian Thiffault, Michael Voss, Steven T. Healey, Seon Wook Kim,Presented By: Jaydeep Marathe,04/16/2003,NC State University,2,The Basic Idea ,Instrumentation needed to collect collect performance
2、data.Static (compile or link time) instrumentationDynamic (run-time) instrumentation,Feasibility study for dynamic instrumentation and dynamically controlled static instrumentation.,Paper asserts: “Dynamic methods better than static instrumentation withrespect to execution overhead & trace data size
3、”,But thats still debatable, as we shall see .,04/16/2003,NC State University,3,Dynamic Instrumentation (with DPCL),JMP _Test,Executing Program,ProbePoint,04/16/2003,NC State University,4,Dynamic Control of Static Instrumentation,Conf_sync(),.,Conf_sync(),Conf_sync(),.,.,.,.,.,.,.,.,Compiler-Instrum
4、ented Program,Conf_sync() return; ,Read Active List,Point Active ?,Instrumentation Library,Instrument compile-time, decide activation at run-time.,04/16/2003,NC State University,5,Instrumentation Tool : Dynprof,For mixed (?) OpenMP + MPI programs,Application Source,KAI Guide Compiler,Executable,Guid
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