The FCT code was ported to the nCUBE-1 by David W. Walker [Walker:88b]. Gary Montry of Sandia National Laboratories supplied the original code, and made several helpful suggestions. A videotape of the evolution of the Kelvin-Helmholtz instability was produced by Jeff Goldsmith at the Image Processing Laboratory of the Jet Propulsion Laboratory.
Figure 6.3: Overhead, f, as a Function of 
, Where n Is
the Number of Grid Points per Processor. Results are shown for nCUBE-1
hypercubes of dimension one to nine. The overhead for the 2-processor case
(open circles) lies below that for the higher dimensional hypercubes. This
is because the processors only communicate in one direction in the
2-processor case, whereas for hypercubes of dimension greater than one,
communication is necessary in both the x and y directions.