Michihiro Koibuchi Tomohiro Otsuka Hiroki Matsutani Hideharu Amano An on/off link activation method for low-power ethernet in PC clusters. 1-11 2009 IPDPS http://dx.doi.org/10.1109/IPDPS.2009.5161069 conf/ipps/2009 db/conf/ipps/ipdps2009.html#KoibuchiOMA09