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SUMMARY:A Communication Characterization of Splash-2 and Parsec - Chris Fe
 nsch and Nick Barrow-Williams
DTSTART:20090527T151500Z
DTEND:20090527T161500Z
UID:TALK18632@talks.cam.ac.uk
CONTACT:Prof Simon Moore
DESCRIPTION:Recent benchmark suite releases such as Parsec specifically ut
 ilize  \nthe tightly\ncoupled cores available in chip-multiprocessors to a
 llow the use of  \nnewer\,\nhigh performance\, models of parallelization.\
 nHowever\, these techniques introduce additional irregularity and  \ncompl
 exity to\ndata sharing and are entirely dependent on efficient communicati
 on  \nperformance\nbetween processors.\nThis paper thoroughly examines the
  crucial communication and sharing  \nbehaviour\nof these future applicati
 ons on an accurate full-system model.\n\nThe infrastructure used allows bo
 th accurate and comprehensive program\nanalysis\, employing a full Linux O
 S running on a simulated 32-core x86  \nmachine.\nExperiments use full pro
 gram runs\, with communication classified at  \nboth core\nand thread gran
 ularities.\nMigratory\, read-only and producer-consumer sharing patterns a
 re  \nobserved and\ntheir behaviour characterized.\nThe temporal and spati
 al characteristics of communication are  \npresented for the\nfull collect
 ion of Splash-2 and Parsec benchmarks.\nOur results aim to support the des
 ign of future communication systems  \nfor CMPs\,\nencompassing coherence 
 protocols\,\nnetwork-on-chip and thread mapping.\n\n
LOCATION:SS03\, Computer Laboratory\, William Gates Building
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