Chris Gniady Y. Charlie Hu Yung-Hsiang Lu Program Counter Based Techniques for Dynamic Power Management. 24-35 2004 conf/hpca/2004 HPCA http://csdl.computer.org/comp/proceedings/hpca/2004/2053/00/20530024abs.htm db/conf/hpca/hpca2004.html#GniadyHL04