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- W1997967900 abstract "Time Warp is an optimistic synchronization protocol for parallel discrete event simulation that coordinates the available parallelism through its rollback and antimessage mechanisms. In this paper we present the results of a strong scaling study of the ROSS simulator running Time Warp with reverse computation and executing the well-known PHOLD benchmark on Lawrence Livermore National Laboratory's Sequoia Blue Gene/Q supercomputer. The benchmark has 251 million PHOLD logical processes and was executed in several configurations up to a peak of 7.86 million MPI tasks running on 1,966,080 cores. At the largest scale it processed 33 trillion events in 65 seconds, yielding a sustained speed of 504 billion events/second using 120 racks of Sequoia. This is by far the highest event rate reported by any parallel discrete event simulation to date, whether running PHOLD or any other benchmark. Additionally, we believe it is likely to be the largest number of MPI tasks ever used in any computation of any kind to date." @default.
- W1997967900 created "2016-06-24" @default.
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- W1997967900 date "2013-05-19" @default.
- W1997967900 modified "2023-09-25" @default.
- W1997967900 title "Warp speed" @default.
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- W1997967900 doi "https://doi.org/10.1145/2486092.2486134" @default.
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