"Two versions of Jet3D are tested here: the original double precision
scalar code ("scalar"), and a mixed single and double precision vector
code with approximate spectral integration ("vector")."
since the Navier-Stokes equations are ill-posed in certain regions, how
did the result (the vector fields) of float v.s. double compare over
long time values?
IMHO, the G5 results are impressive compared to a G4 and compare to a
P4. A native G5 compiler should be even better, as you wrote. Finally,
a mac that can be respected in the SciTech market :-)