This research is/was supported in part by the
Gigascale Sytems Research Center (funded under FCRP, an SRC program),
the National Science Foundation under Grants NSF CCF 05-41383, CNS
07-20743, CCF 08-11693, and NGS 04-06351, and an OpenSPARC Center of
Excellence supported by Sun Microsystems. Pradeep Ramachandran is
supported by an Intel PhD fellowship and an IBM PhD Scholarship, and Xin
Fu is supported by NSF Computing Innovation fellowship.