Mac OS X 10.2 comes with /System/Library/Frameworks/vecLib.framework,
which contains Altivec optimized versions of LAPACK, BLAS (and of
libraries for Digital Signal Processing and BigNums, and a vector
version of the scalar libm). All this is either 8, 16, or 32 bit signed
and
unsigned integers, or single precision IEEE floating point.
Browse it: <developer.apple.com/hardware/ve>
Code it: /System/Library/Frameworks/vecLib.framework/
Include it: #include <vecLib/vecLib.h>
Do it: cc -faltivec -framework vecLib file.c
Although the use of single precision FP may be a problem for
building all of R, this framework could obviously be used to build
some wickedly fast DSP and linear algebra packages.
==Jan de Leeuw; Professor and Chair, UCLA Department of Statistics;
Editor: Journal of Multivariate Analysis, Journal of Statistical
Software
US mail: 9432 Boelter Hall, Box 951554, Los Angeles, CA 90095-1554
phone (310)-825-9550; fax (310)-206-5658; email: deleeuw@stat.ucla.edu
homepage: http://gifi.stat.ucla.edu
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No matter where you go, there you are. --- Buckaroo Banzai
http://gifi.stat.ucla.edu/sounds/nomatter.au
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