June 22–26, 2014
Leipzig, Germany

Presentation Details

Name: Performance Characterization of RSC PetaStream Module
Time: Tuesday, June 24, 2014
12:30 pm - 12:45 pm
Room:   Hall 3
CCL - Congress Center Leipzig
Speaker:   Alexander Moskovsky, RSC
Abstract:   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.

Andrey Semin, Intel; Egor Druzhinin, Vladimir Mironov, Alexey Shmelev & Alexander Moskovsky, RSC Group