Identyfikatory
Warianty tytułu
Konferencja
SGIUG 2006 Technical Conference, Las Vegas, June 5-9 2006
Języki publikacji
Abstrakty
The SGI® Message Passing Toolkit (MPT) software has implemented algorithms that provide extremely high-performance message passing on SGI Altix systems based on the SGI NUMAlink™ interconnect technology. Using Linux® OS infrastructure and SGI XPMEM cross-host memory-mapping software, SGI MPI delivers extremely high MPI performance on shared-memory single host/SMP Altix systems as well as multihost superclusters. This paper outlines the Altix hardware features, OS features, and library software algorithms that have been developed to provide the low-latency and high-bandwidth capabilities. We present high-performance features like direct copy send/receive, collectives, and the ultralow-latency SHMEM™ data transfer library. We include MPI benchmark results, including an MPI ping pong latency that ranges from 1.2 to 2.3 microseconds on a 512-CPU Altix system with 1.5 GHz Intel® Itanium® 2 Processors.
Słowa kluczowe
Rocznik
Tom
Strony
67--70
Opis fizyczny
Bibliogr. 7 poz., rys.
Twórcy
Bibliografia
- [1] http://www.mpi-forum.org/docs/docs.html
- [2] intro_shmem man page at http://docs.sgi.com
- [3] http://www.shmem.org
- [4] R. Barriuso and A. Knies, SHMEM User's Guide for Fortran, Cray Research Inc. (June 1994)
- [5] Michael Woodacre, Derek Robb, Dean Roe and Karl Feind, The SGI Altix 3000 Global Shared-Memory Architecture, http://www.sgi.com/pdfs/3474.pdf
- [6] Exploiting the Scalability and Power of FLUENT: The SGI Message Passing Toolkit on the SGI Altix High-Performance Computing Platform powered by the Intel Itanium 2 Processor; Whitepaper by Intel, Fluent, and SGI; http://www.sgi.com/pdfs/3807.pdf
- [7] shmem_ptr() and MPI_SGI_globalptr() man pages at http://docs.sgi.com
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ5-0013-0032