Parthasarathy Ranganathan Phil Leech David E. Irwin Jeffrey S. Chase Ensemble-level Power Management for Dense Blade Servers. 66-77 2006 conf/isca/2006 ISCA http://doi.ieeecomputersociety.org/10.1109/ISCA.2006.20 db/conf/isca/isca2006.html#RanganathanLIC06