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- Sandberg, Andreas, 1984-, et al.
(författare)
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Efficient detection of communication in multi-cores
- 2009
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Ingår i: Proc. 2nd Swedish Workshop on Multi-Core Computing. - Uppsala, Sweden : Department of Information Technology, Uppsala University. ; , s. 119-121
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Several methods have been proposed to model communication in systems with coherent caches, e.g. multi-cores, however they usually incur a large overhead on the application being analyzed. In this work we describe a low-overhead statistical communication model that is driven by a sparse sample of the memory accesses in the target application. Our model allows detection of hot-spots where coherence communication occurs between different threads in an application. Preliminary results suggest that we are able to detect most of the communication hot-spots in real applications with lower overhead than previously proposed models.
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