Staff Scientist IBM T.J. Watson Research Center Biography Interesting Stuff on the Web

I currently lead the GCC Optimization team at IBM Research. I previously was a member of the K42 Research Operating System Project designing an operating system to address adaptive, scalable, shared memory systems. My recent projects have included enhancements to JavaTM performance on servers for cryptography and electronic commerce tasks through optimized implementations of multiprecision arithmetic on zSeries. I previously contributed to IBM Scalable POWERparallel (SP2) system software and environment research and development, especially message passing, high-level parallel languages, and high-performance I/O.

• Tornado Operating System at University of Toronto Parallel Systems Group
• Parallel Fast Force Summation Algorithms
  a class of N-body/Particle Simulation Numerical Methods
• Computational Astrophysics
• Hierarchical Solvers (Multigrid / Adaptive Mesh Refinement)

My paper at the 2004 GCC Summit is available in the proceedings. Also, some of my papers are viewable as Center for Research on Parallel Computation (CRPC) technical reports:

• CRPC-TR91186-S: Hierarchical Tree-Structures as Adaptive Meshes
• CRPC-TR94406-S: A Generalized Expression Optimization Hook for C++.

• AIX Toolbox for Linux
• Bull Open Software Archive for AIX
• PowerPC Architecture at IBM
• PowerPC Linux at PenguinPPC
• IBM Linux Technology Center
• GNU Software and the Free Software Foundation

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