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Leopard Reference: 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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vDSP Single-Vector Operations Reference (HTML) (PDF)
This document describes the C API for performing common routines on a single vector in vDSP.
2009-01-07
vDSP Correlation, Convolution, and Filtering Reference (HTML) (PDF)
Describes an interface for performing correlation, convolution, and filtering operations on real or complex signals.
2009-01-06
vDSP Matrix Operations Reference (HTML) (PDF)
Describes an interface for matrix arithmetic operations.
2009-01-06
vDSP One-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Describes an interface for performing one-dimensional fast Fourier transforms on an input signal.
2009-01-06
vDSP Vector-To-Scalar Operations Reference (HTML) (PDF)
Describes functions that receive a vector as input and compute scalars as output.
2009-01-06
vDSP Vector-to-Vector Arithmetic Operations Reference (HTML) (PDF)
Describes functions that receive a vector as input and return a vector as output.
2009-01-06
vecLib Framework Reference (HTML) (PDF)
Describes the C API for vector mathematical functions in the vecLib subframework of the Accelerate framework.
2009-01-06
vDSP Two-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Improved function discussions and corrections.
2008-11-19
vDSP Reference Collection (HTML) (PDF)
Describes the vDSP programming interface defined in the Accelerate framework for digital signal processing.
2008-10-15
vImage Reference Collection (HTML) (PDF)
Describes the C programming interface for high-performance image processing.
2007-07-12
vDSP Complex Vector Conversion Reference (HTML) (PDF)
Describes functions that convert complex vectors between interleaved and split forms.
2007-06-15
vDSP Vector Scalar Arithmetic Operations Reference (HTML) (PDF)
Describes vDSP functions that perform arithmetic operations combining a scalar with each element of a vector.
2007-06-15