Ethernet White Papers
Comparing Ethernet and Myrinet for MPI Communication
Overview This paper compares the performance of Myrinet and Ethernet as a communication substrate for MPI libraries. MPI library implementations for Myrinet utilize user-level communication protocols to provide low latency and high band-width MPI messaging. In contrast, MPI library implementations for Ethernet utilize the operating system network protocol stack, leading to higher message latency and lower message bandwidth. However, on the NAS benchmarks, GM messaging over Myrinet only achieves 5% higher application performance than TCP messaging over Ethernet. Fur-thermore, efficient TCP messaging implementations improve communication latency tolerance, which closes the performance gap between Myrinet and Ethernet to about 0.5% on the NAS benchmarks.
| Publisher | Rice University | File Format | |
|---|---|---|---|
| Date Published | October 2004 | ||
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 2 out of 5 users found this white paper useful
White Paper RSS
Download
Register
