[talks] Soudeh Ghorbani talk Fri Nov 13 11am-11.30am

Nicole E. Wagenblast nwagenbl at CS.Princeton.EDU
Mon Nov 9 12:16:47 EST 2015

Soudeh Ghorbani, a PhD student at UIUC working with Brighten Godfrey, 

is visiting Princeton on November 13 to give a talk. Please see 
details of her talk below. 

What: Micro Load Balancing in Data Centers with DRILL 
When: Friday November 13 from 11am-11.30am 
Where: COS 302 
Speaker: Soudeh Ghorbani, University of Illinois Urbana-Champaign 

Micro Load Balancing in Data Centers with DRILL 

The trend towards simple data center network fabric strips most 
network functionality, including load balancing capabilities, out of 
the network core and pushes them to the edge. We investigate a 
different direction of incorporating minimal load balancing 
intelligence into the network fabric and show that this slightly 
smarter fabric significantly enhances performance. We provide a very 
simple in-network load balancing scheduling algorithm called DRILL 
which is purely local to each switch. DRILL leverages local load 
sensing and randomization concepts to distribute load among multiple 
paths. Through simulation, we show that this simple approach 
outperforms CONGA, a recent global edge-based load balancing scheme 
for data centers. We also formally prove the switch-level stability 
and throughput-efficiency of DRILL’s scheduling algorithm. 


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