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Volume 37, Number 2, 1998
San Francisco Frameworks
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Profile-directed restructuring of operating system code - Author bios

by W. J. Schmidt, R. R. Roediger, C. S. Mestad, B. Mendelson, I. Shavit-Lottem

Biographical sketches of authors

William J. Schmidt IBM AS/400 Division, 3605 Highway 52 North, Rochester, Minnesota 55901 (electronic mail: wjs@vnet. ibm.com). Dr. Schmidt is an advisory software engineer with the SLIC Program Model group for the AS/400. He has been developing compiler optimizations for the AS/400 optimizing translator since joining IBM in 1992. He received a B.A. in mathematics and music from Bethel College, North Newton, Kansas in 1984, and M.S. and Ph.D. degrees from Iowa State University, Ames, Iowa in 1991 and 1992, respectively. He holds 19 filed patent applications and two issued U.S. patents, primarily in the area of compiler optimizations. His current interests include profile-based optimizations for Java classes.

Robert R. Roediger IBM AS/400 Division, 3605 Highway 52 North, Rochester, Minnesota 55901 (electronic mail: roediger@vnet. ibm.com). Dr. Roediger joined IBM in 1980. He is presently a senior software engineer with the SLIC Program Model group for the AS/400, working on compiler optimizations for the AS/400 optimizing translator. He has previously worked on various system and computer architecture projects, as well as compiler projects for both the AS/400 and the System/38. Dr. Roediger is a member of the ACM. He received a B.S. degree and M.S. degree in applied mathematics and computer science from Washington University, St. Louis, Missouri, in 1972, and a D.Sc. in computer science from Washington University in 1980. He holds 16 filed patent applications.

Cynthia S. Mestad IBM AS/400 Division, 3605 Highway 52 North, Rochester, Minnesota 55901 (electronic mail: Cindy Mestad/ Rochester/IBM@IBMUS). Ms. Mestad is currently a staff software engineer doing performance analysis on the AS/400 at IBM in Rochester, Minnesota. Upon completion of a computer programming course at Brown Institute in Minneapolis, Minnesota, she joined IBM in 1980 as a computer operator on the IBM System/38. She has held various testing, programming, and project management positions within IBM throughout her career. She has focused on the System/36, System/38, and AS/400.

Bilha Mendelson IBM Research Division, Haifa Research Laboratory, Matam--Advanced Technology Center, Haifa 31905, Israel (electronic mail: bilha@vnet.ibm.com). Dr. Mendelson has been a member of the Haifa Research Laboratory in Israel for several years. She worked on avionic real-time systems at Elbit Ltd. before attending graduate school. In 1990 she joined the Haifa Research Laboratory, where she is now the manager of the code optimization and performance improvements group. She holds a B.Sc. and M.Sc. in computer science from the Technion-Israel Institute of Technology, Haifa, and a Ph.D. in electrical engineering from the University of Massachusetts at Amherst. Her areas of interest include code optimization algorithms, compiler technology, computer architecture, and data-flow systems.

Inbal Shavit-Lottem IBM Research Division, Haifa Research Laboratory, Matam--Advanced Technology Center, Haifa 31905, Israel (electronic mail: ishavit@vnet.ibm.com). Mrs. Shavit-Lottem is currently a member of the code optimizations and performance improvements group in the Haifa Research Laboratory, where she has been working since 1992. She works on machine-dependent (back-end) compiler improvements and optimizations. She received her B.Sc. degree in computer science from the Technion-Israel Institute of Technology in Haifa. She has four filed patent applications in the area of code optimizations. Her areas of interest include code optimization algorithms, compiler technology, and graphical user interfaces.

Vita Bortnikov-Sitnitsky IBM Research Division, Haifa Research Laboratory, Matam--Advanced Technology Center, Haifa 31905, Israel (electronic mail: vita@haifasc3.vnet.ibm.com). Mrs. Bortnikov is currently with the code optimizations and performance improvements group in the Haifa Research Laboratory, where she has been working since 1994. She works on machine-dependent (back-end) compiler improvements and optimizations. She received her B.Sc. degree (cum laude) in computer science in 1996 from the Technion-Israel Institute of Technology in Haifa. She has four filed patent applications in the area of code optimizations. Her areas of interest include code optimization algorithms, compiler technology, distributed computing, and advanced algorithms and data structures.