School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P.R.C.;
School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P.R.C.;
School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P.R.C.;
School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P.R.C.;
Eberly College of Science Pennsylvania State University Old Main State College PA 16801 U.S.A.;
School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P.R.C.;
Spark; optimize scheduling; stratifying algorithm; performance optimization;