One-Sided Communication on the Myrinet-Based SMP Clusters Using the GM Message-Passing Library

Conference · Thu Dec 06 23:00:00 EST 2001

OSTI ID:951046

Nieplocha, Jaroslaw; Ju, Jialin; Apra, Edoardo

he paper describes an efficient implementation of one-sided communication on top of GM messagre passing library and Pthreads for the Myrinet-based SMP clusters. This approach avoids polling, is compatible with shared memory, and exploits pipelining, nonblocking communication, and overlapping memory registration with memory copy to maximize the transfer rate. Our implementation uses the standard distribution of GM and is compatible with MPICH/GM. Performance of our two applications was very good, and the GM port allowed them to avoid performance anomalies of the standard TCP/IP implementation when running on Myrinet.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 951046
• Report Number(s): PNNL-SA-34075; KJ0101030
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
99 GENERAL AND MISCELLANEOUS
COMPUTER NETWORKS
DATA TRANSMISSION
IMPLEMENTATION
PERFORMANCE