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Summary: Reducing Power Consumption in Fat-Tree Networks using On/Off Links
M. Alonso1
, S. Coll2
, V. Santonja1
, J. M. Martínez1
, P. López1
, J. Duato1
1Dept. de Informática de Sistemas y Computadores - DISCA
2Dept. de Ingeniería Electrónica
Universidad Politécnica de Valencia
46022 Valencia
{malonso,scoll,visan,jmmr,plopez,jduato}@upvnet.upv.es
Abstract
Nowadays, power consumption reduction tech-
niques are being increasingly used in computer sys-
tems, and high-performance computing systems are
not an exception. In particular, the power con-
sumed by the interconnect circuitry has a non-
negligible contribution to the total system bud-
get. In this scenario, fat-tree interconnection net-
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