Intel Integrated
Performance Primitives
How to Optimize Software Applications
Using Intel IPP
Stewart Taylor
Intel Integrated
Performance Primitives
How to Optimize Software Applications
®
Using Intel IPP
®
Stewart Taylor
INTEL
PRESS
Copyright © 2004 Intel Corporation. All rights reserved.
ISBN 0-9717861-3-5
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Contents
Chapter
1
Introduction
1
What Are the Intel Integrated Performance Primitives? 2
A Broad Multimedia and Computational Library (“Integrated”) 2
A Software Optimization Layer (“Performance”) 2
An Extensive Set of Low-Level Operations (“Primitives”) 4
A Cross-Platform API 5
Why This Book? 6
Target Audience 6
Content Review 7
CD-ROM 8
Chapter 2
Using IPP
9
Linkage Options Overview 9
Dynamic Linkage 12
Usage 14
Distribution 15
Static Linkage with Dispatching 15
Usage 17
Distribution 18
Custom Dynamic Linkage 18
Usage 19
Distribution 22
Static Linkage Without Dispatching 22
Usage 23
Distribution 25
Linkage Model Comparison 25
Linkage Features Summary 27
iii
iv
Intel
®
Integrated Performance Primitives
Chapter 3
Architecture and Interface
The Three Input Types 29
Fundamental Data Types 31
Signals and Arrays 32
Images 34
Matrices 38
Objects 38
Sizes 39
Descriptors 39
Core Functions 42
Domains 42
Multi-step Operations 43
Init Sequence 44
InitAlloc Sequence 45
Return Values 46
Arguments 47
Structures 48
Fundamental Type Structures 48
Basic Structures 49
Multi-step Operation Structures 49
29
Chapter 4
Basic Techniques
51
Measuring Performance with GetCpuClocks 51
Copying Data 54
Converting Types and Layouts 55
Converting Data Types with Convert 56
Rearranging Data with Real, Imag, RealToCplx and CplxToReal
58
Initializing Arrays 60
Initializing One-Dimensional Arrays with ippsVectorRamp 61
Initializing Two-dimensional Arrays with ippiRamp 63
Removing Loops and Branches 64
Removing Branches with Threshold 64
Removing Loops with Compare and Logical Operations 69
Removing Loops with Compare and Copy with Mask 73
Performing Arithmetic Efficiently 74
Performing Arithmetic Between Integers and Floating Point Values
with AddWeighted and AddProduct 74
Performing Linear Combinations of Two Sources with Alpha
Composition 75
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