Design and evaluation of Nemesis, a scalable, low-latency, message-passing communication subsystem.

Buntinas, D. ; Mercier, G. ; Gropp, W.

Argonne National Laboratory

关键词: Computer Architecture;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Computer Networks;    Data Transmission;    Design;   

DOI  :  10.2172/881588
RP-ID  :  ANL/MCS-TM-292
RP-ID  :  W-31-109-ENG-38
RP-ID  :  881588

美国|其它

来源: UNT Digital Library

【 摘 要 】

This paper presents a new low-level communication subsystem called Nemesis. Nemesis has been designed and implemented to be scalable and efficient both in the intranode communication context using shared-memory and in the internode communication case using high-performance networks and is natively multimethod-enabled. Nemesis has been integrated in MPICH2 as a CH3 channel and delivers better performance than other dedicated communication channels in MPICH2. Furthermore, the resulting MPICH2 architecture outperforms other MPI implementations in point-to-point benchmarks.