June 22–26, 2014
Leipzig, Germany

Presentation Details

Name: (21a) Active Packet Pacing as a Congestion Avoidance Technique toward Extreme Scale Interconnect
Time: Thursday, June 26, 2014
10:30 am - 11:00 am
Room:   Hall 4
CCL - Congress Center Leipzig
Breaks:10:30 am - 11:00 am Coffee Break
07:30 am - 10:30 am Welcome Coffee
Presenter:   Hidetomo Shibamura, ISIT
Abstract:   A congestion avoidance technique using active packet pacing for interconnect is presented. In this technique, packets are sent intermittently by adjusting the inter-packet gap in order to match up packet flows precisely, therefore the network congestion is avoided. The gap is pre-calculated for each communication based on the communication hop, and the value is explicitly passed to sending function. Performance evaluations for some collective communications were done by using an interconnect simulator and the effectiveness of packet pacing was confirmed.

Hidetomo Shibamura, Institute of Systems, Information Technologies & Nanotechnologies