>>>>> "Fred" == Fred Gilham <[EMAIL PROTECTED]> writes:
[snip]
Fred> I also noticed that using (unsigned-byte 16) instead of
Fred> (unsigned-byte 32) reduces the run time still further, to a bit more
Fred> than 2 seconds.
I wonder why? But definitely shouldn't go below (unsigned-byte 8) if
speed is important since these are packed into words.
Fred> The main point is that CMUCL only optimizes specialized arrays of the
Fred> following types:
Fred> bit
Fred> (unsigned-byte 2)
Fred> (unsigned-byte 4)
Fred> (unsigned-byte 8)
Fred> (unsigned-byte 16)
Fred> (unsigned-byte 32)
Fred> base-character
Fred> single-float
Fred> double-float
Fred> (at least according to the version of the user manual I have). FIXNUM
Fred> is not one of these types --- I suppose that's because it's not a
Fred> native-hardware word size.
Your manual is out-of-date (or the manual itself is). The following
types are also good array types:
(signed-byte 8)
(signed-byte 16)
(signed-byte 30) ; aka fixnum
(signed-byte 32)
(complex single-float)
(complex double-float)
Ray
