OpenCL Programming Guide

Using the new OpenCL (Open Computing Language) standard, you can write applications that access all available programming resources: CPUs, GPUs, and other processors such as DSPs and the Cell/B.E. processor. Already implemented by Apple, AMD, Intel, IBM, NVIDIA, and other leaders, OpenCL has outstanding potential for PCs, servers, handheld/embedded devices, high performance computing, and even cloud systems. This is the first comprehensive, authoritative, and practical guide to OpenCL 1.1 specifically for working developers and software architects.

Written by five leading OpenCL authorities, OpenCL Programming Guide covers the entire specification. It reviews key use cases, shows how OpenCL can express a wide range of parallel algorithms, and offers complete reference material on both the API and OpenCL C programming language.

Through complete case studies and downloadable code examples, the authors show how to write complex parallel programs that decompose workloads across many different devices. They also present all the essentials of OpenCL software performance optimization, including probing and adapting to hardware. Coverage includes

• Understanding OpenCL’s architecture, concepts, terminology, goals, and rationale
• Programming with OpenCL C and the runtime API
• Using buffers, sub-buffers, images, samplers, and events
• Sharing and synchronizing data with OpenGL and Microsoft’s Direct3D
• Simplifying development with the C++ Wrapper API
• Using OpenCL Embedded Profiles to support devices ranging from cellphones to supercomputer nodes
• Case studies dealing with physics simulation; image and signal processing, such as image histograms, edge detection filters, Fast Fourier Transforms, and optical flow; math libraries, such as matrix multiplication and high-performance sparse matrix multiplication; and more
• Source code for this book is available at https://code.google.com/p/opencl-book-samples/

Review

“Welcome to the new world of heterogeneous parallel programming with this authoritative and accessible guide to the complete OpenCL Programming Model.”

–Professor Pat Hanrahan, Stanford University

Contents

Part I: The OpenCL 1.1 Language and API

1. An Introduct ion to OpenCL

2. HelloWorld: An OpenCL Example

3. Platforms, Contexts, and Devices

4. Programming with OpenCL C

5. OpenCL C Built- In Funct ions

6. Programs and Kernels

7. Buffers and Sub -Buffers

8. Images and Samplers

9. Events

10. Interoperability with OpenGL

11. Interoperability with Direct3D

12. C++ Wrapper API

13. OpenCL Embedded Profile

Part II: OpenCL 1.1 Case Studies

14. Image Histogram

15. Sobel Edge Detect ion Filter

16. Parallelizing Dijkstra’s Single-Source Shortest-Path Graph Algorithm

17. Cloth Simulation in the Bullet Physics SDK

18. Simulating the Ocean with Fast Fourier Transform

19. Optical Flow

20. Using OpenCL with PyOpenCL

21. Matrix Multiplication with OpenCL

22. Sparse Matrix-Vector Multiplication