1. Center for Energy-efficient Computing and Applications, School of EECS, Peking University, China and Falcon Computing Solutions, Inc., Los Angeles, CA, USA
2. Center for Energy-efficient Computing and Applications, School of EECS, Peking University, China
3. Center for Energy-efficient Computing and Applications, School of EECS, Peking University, China and Computer Science Department, University of California, Los Angeles, CA, USA and Falcon Computing Solutions, Inc., Los Angeles, CA, USA