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Greg Allen's Home Page

I am a full-time engineer in the Sonar Development Division of the Advanced Technology Laboratory at Applied Research Laboratories, The University of Texas at Austin. I am also a part-time PhD student in the UT Electrical and Computer Engineering Department. My supervising professor is Brian Evans. Sonar Development Division is looking for students, both graduate and undergraduate

• Y. H. Cho, D. Brunke, G. E. Allen, and B. L. Evans, "Optimization of Vertical and Horizontal Beamforming Kernels on the PowerPC G4 Processor with AltiVec Technology", Proc. IEEE Asilomar Conf. on Signals, Systems, and Computers, Oct. 29-Nov. 1, 2000, Pacific Grove, CA.
• G. E. Allen and B. L. Evans, "Real-Time Sonar Beamforming on Workstations Using Process Networks and POSIX Threads", IEEE Transactions on Signal Processing, pp. 921-926, March 2000
• A Comparison of Parallel Workstation Sonar Beamforming Implementations which was presented at the ARL High Performance Parallel Computing Symposium, Dec 1999
• Real-Time High-Throughput Sonar Beamforming Kernels Using Native Signal Processing and Memory Latency Hiding Techniques which was presented at the Thirty-Third Asilomar Conference on Signals, Systems, and Computers, Oct 1999
• Real-Time Sonar Beamforming on a Unix Workstation using Process Networks and POSIX Threads which was presented at the Thirty-Second Asilomar Conference on Signals, Systems, and Computers, Nov 1998
• Posters for the 1999 Ptolemy Miniconference
• Real-Time Sonar Beamforming on a Symmetric Multiprocessing UNIX Workstation Using Process Networks and POSIX Pthreads, my MSE Report

• Computational Process Networks
• D4R Algorithm examples
  
• My AltiVec FFT page
• Computational Process Network C++ Source Code (old SMP version)
  
• Oral Presentations
• My Ph.D. Qualifying Exam
• Sonar Beamforming background information
• Process Networks information
• Pictures of Sabrina
• My graduate course work
• My vita
• My notes on building a GCC cross-compiler for the m68k on an Solaris box