Enabling Concurrent Multithreaded MPI Communication on Multicore Petascale Systems

Abstract

With the ever-increasing numbers of cores per node on HPC systems, applications are increasingly using threads to exploit the shared memory within a node, combined with MPI across nodes. Achieving high performance when a large number of concurrent threads make MPI calls is a challenging task for an MPI implementation. We describe the design and… (More)
DOI: 10.1007/978-3-642-15646-5_2

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