MPI on a Million Processors

Abstract

Petascale machines with close to a million processors will soon be available. Although MPI is the dominant programming model today, some researchers and users wonder (and perhaps even doubt) whether MPI will scale to such large processor counts. In this paper, we examine this issue of how scalable is MPI. We first examine the MPI specification itself and… (More)
DOI: 10.1007/978-3-642-03770-2_9

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