Fast Fourier Transforms and the GVX

[George Seibel]

In article <9003051643.AA14376 at forest.sgi.com> baskett%forest at SGI.COM writes:
]The new graphics subsystem is VGX, not GVX.  It is also refered to by
]the product literature as PowerVision.  It contains an "ImageVision
]Library" for FFT's, image rotations, warps, and convolutions directly
]in the graphics pipeline.  It does not use FFT chips in the graphics
]pipeline; it uses special code in the geometry subsystem to apply its
]128 mflops to image processing problems like FFT.  As to what FFT's are
 ^^^^^^^^^!
 You just got my attention here... Any chance of getting at these mflops
in a convenient way from high level code for general number crunching
purposes?   Is there enough precision to make it worthwhile?   You
wouldn't happen to have 1/sqrt(r) in there, would ya?

George Seibel, UCSF
seibel at cgl.ucsf.edu