A one-day course developed by Bowen Alpern and Larry Carter
These links go to large .ps files of slides used in class
presentations. They are not designed to be
viewed from a PostScript previewer. It may be
necessary to reduce the viewer's magnification in order to see entire
What is performance programming? When is it justified?
The scientific method. Visualizing computations.
Extended example: seismic migration.
Extended example: unblocked matrix multiplication. The Two Level
model of computation. Locality: local, semilocal, and nonlocal data
passes. The memory hierarchy and the parallelism hierarchy.
The three basic techniques of performance programming. Extended
example: the NAS CG benchmark.
Timing and profiling. Reading assembly code. Integer arithemetic in
floating point, message compression, and other tricks. Example: the
NAS EP benchmark.
A few half-baked ideas on how the impossible might be achieved.