| Abstract: |
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The RSC PetaStream architecture is a massively parallel computer design based on Intel® Xeon® Phi manycore co-processors. Each RSC Peta-Stream module contains eight Intel Xeon Phi co-processors with PCI-express fabric and Infiniband interconnect for intermodule communication. This paper concentrates on the performance of a single RSC PetaStream module, evaluated with the help of low-level (point-to-point MPI), library (linear algebra, MAGMA) and application-level (classical molecular dynamics, GROMACS and LAMMPS codes) tests. The Intel Xeon E5-2690 top bin CPU dual-socket system has been used for comparison. This early evaluation demonstrates that in general each Xeon Phi co-processor of RSC PetaStream delivers approxi-mately the same performance as dual-socket Intel Xeon E5 system, with only a half energy-to-solution. Fine-grain parallelism of Intel Xeon Phi cores takes ad-vantage of higher messages exchange rates on MPI level for communication of threads placed on different Xeon Phi chips.
Authors
Andrey Semin, Intel; Egor Druzhinin, Vladimir Mironov, Alexey Shmelev & Alexander Moskovsky, RSC Group |
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