has anyone ever tried to compare the results obtained from simpoints with the full execution on a real machine?

I mean, instead of using some fast-forward technique on a simulator, use a real machine with, say, a checkpoint on a phase and instrumentation at the end of this phase to measure time and compare the performance indexes (with PAPI, for instance).

All the papers I found are related to simulation, and it's quite harder to do on a real machine (as checkpoints on real hardware are more difficult, the file handlers go away, there's no fast-forward, etc).

 

I am following this path, and if someone else has done it before, please let me know, let's exchange some ideas!

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Alexandre Strube
surak@...