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In geophysics, the appropriate subdivision of a region into segments is extremely important. ICTM (interval categorizer tesselation model) is an application that categorizes geographic regions using information extracted from satellite images. The categorization of large regions is a computational intensive problem, what justifies the proposal and development of parallel solutions in order to improve...
In this paper, we present a methodology for profiling parallel applications executing on the IBM PowerXCell 8i (commonly referred to as the ldquoCellrdquo processor). Specifically, we examine Cell-centric MPI programs on hybrid clusters containing multiple Opteron and Cell processors per node such as those used in the petascale Roadrunner system. Our implementation incurs less than 3.2 mus of overhead...
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