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When using Thread Profiler on an MT task linked Microsoft OpenMP, no fork/join lines, no transition lines are shown on the profile picture. The state of all threads - except of main thread - is show as "Wait", i.e. dim green, though they work OK. What's wrong here? Intel compiler's OpenMP and WinAPI thread executibles are shown good.
Thanks,
Sergey
Thanks,
Sergey
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Thread Profiler will instrument/monitor only system calls related to thread synchronization so a lotof the informationwithin the OMP runtime will not get tracked and therefore will be missing from the TP display. The story is different for the Intel OMP runtime since thereare special notification calls implemented forThread Profiler in the OMP library.
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You would probably want to run with the Intel OpenMP libcompat, so as to support MSVC and Intel compilers equally well. I haven't tried profiling VC8 with Thread Profiler, as I prefer the Intel OpenMP profiling library, and VC9 is the MS version documented as supported with libcompat.
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Quoting - Nicolae Popovici (Intel)
Thread Profiler will instrument/monitor only system calls related to thread synchronization so a lotof the informationwithin the OMP runtime will not get tracked and therefore will be missing from the TP display. The story is different for the Intel OMP runtime since thereare special notification calls implemented forThread Profiler in the OMP library.
Anyway thanks, this is more theoretical interest...
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