Zhao Zhang Associate Professor of Electrical and Computer Engineering Office: 368 Durham Center Phone: (515) 294-7940 Fax: (515) 294-1152 E-mail: zzhang@iastate.edu Web: http://www.eng.iastate.edu/~zzhang/ Postal address: 2215 Coover Hall Department of Electrical and Computer Engineering Iowa State University Ames, IA 50011

Check my calendar, curriculum vitae, publications, and Google scholar page.

Education

• 1987-1991, Huazhong University of Science and Technology, B.S. in Computer Science.
• 1991-1994, Huazhong University of Science and Technology, M.S. in Computer Science.
• 1997-2002, College of William & Mary, Ph.D. in Computer Science.

Teaching

• CprE 288, Microcontrollers and Digital Systems Design, Fall 2013
• CprE 381, Computer Organization and Assembly Level Programming, Fall 2013
• CprE 681, Advanced Topics in Computer Architecture, Fall 2013

Research

My research interests include high performance computer architecture, parallel and distributed computing, and architectural support for security. Here is the full publication list. My representative works include (not exclusively, and done with my students and/or collaborators):

• "A permutation-based page interleaving scheme to reduce row-buffer conflicts and exploit data locality" (MICRO 2000): We find out that cache misses and writebacks may incur severe DRAM row-buffer conflicts under conventional memory address mapping, and propose a simple XOR-based mapping to resolve the conflicts. The technique has been adopted in many processors and chipsets: Sun UltraSPARC IIIi Sun Gemini, AMD Geode LX, AMD Geode GX3, Mobile Intel 4 Express chipset family, NVIDIA chipset GeForce 7025/nForce 630a, and Intel Haswell i7 processor. (See detailed documents.)
• "Gaining insights into multicore cache partitioning: bridging the gap between simulation and real systems" (HPCA 2008). It is a comprehensive execution- and measurement-based study on multicore cache partitioning. The cache management method it proposes has been been used in Linux kernel for production systems (See detailed documents).

Professional

• Program co-chair, architecture track, The 8th IEEE International Conference on Networking, Architecture, and Storage (NAS 2013), Xi’an, Shaanxi, China, July 10-12, 2013.
• Editorial board, Parallel and Distributed Computing and Networks, ACTA Press.

Current Students

• Spash Mittal
• Vaibhav Sundriyal
• Long Chen
• Yanan Cao