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Reference Library: Performance
Current Intel and PowerPC processors include 128-bit vector engines to perform single-instruction multiple-data (SIMD) operations. These vector engines offer tremendous speed advantages, especially for highly parallel operations such as processing audio, graphics, or video. Developers can use these vector engines directly or take advantage of the functionality offered by the Accelerate framework.

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Accelerate Release Notes (HTML)
Release Note 2007-10-31
Accelerate Reference Update (HTML) (PDF)
Summarizes the symbols added to the Accelerate framework.
Reference 2007-07-18
vDSP Complex Vector Conversion Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Correlation, Convolution, and Filtering Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Matrix Operations Reference (HTML) (PDF)
Reference 2007-06-15
vDSP One-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Reference Collection (HTML) (PDF)
Reference 2007-06-15
vDSP Single-Vector Operations Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Two-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Vector Scalar Arithmetic Operations Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Vector-To-Scalar Operations Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Vector-to-Vector Arithmetic Operations Reference (HTML) (PDF)
Reference 2007-06-15
vDSP Examples (HTML) (DMG) (ZIP)
vDSP sample code
Sample Code 2007-05-10
Test64BitMultiprec (HTML) (DMG) (ZIP)
Implements (PPC) A*Y+B where A & B are arrays of 64-bit words and Y is a 64-bit integer
Sample Code 2006-06-09
Taking Advantage of the Accelerate Framework (HTML)
Learn how your application can run on PowerPC- or Intel-based Macs without processor-specific customization.
Articles 2005-10-03
AltiVec/SSE Migration Guide (HTML) (PDF)
Explains how to convert PowerPC AltiVec code to Intel SSE code.
Guides 2005-09-08
vecLib Reference Update (HTML) (PDF)
Summarizes the symbols added to the vecLib framework.
Reference 2005-06-04
dist_fft (HTML) (DMG) (ZIP)
Gigaelement FFTs on Apple G5 clusters
Sample Code 2004-08-23
Optimizing for the Power Mac G5 (HTML)
Learn how to optimize your code for the Power Mac G5.
Articles 2003-10-24
VelEng FFT (HTML) (DMG) (ZIP)
G4 Velocity Engine implementation of Fast Fourier Transform (FFT) and associated convolution/correlation routines.
Sample Code 2003-01-14
VelEng Multiprecision (HTML) (DMG) (ZIP)
An implementation of arbitrary precision arithmetic using the PowerPC Velocity-Engine (G4) vector instructions.
Sample Code 2003-01-14
VelEng Wavelet (HTML) (DMG) (ZIP)
This demonstrates a Velocity Engine (G4) implementation of wavelet processing of color images
Sample Code 2003-01-14
Disabling a Processor on a Multiprocessor System (HTML) (日本語 HTML)
QA1141: Describes how to disable a processor on a multiprocessor system for testing purposes.
Technical Q&A 2002-05-22