Programming Massively Parallel Processors - 1st Edition - ISBN: 9780123814722, 9780123814739

Programming Massively Parallel Processors

1st Edition

A Hands-on Approach

Authors: David Kirk Wen-mei Hwu
eBook ISBN: 9780123814739
Imprint: Morgan Kaufmann
Published Date: 22nd January 2010
Page Count: 280
Tax/VAT will be calculated at check-out
File Compatibility per Device

PDF, EPUB, VSB (Vital Source):
PC, Apple Mac, iPhone, iPad, Android mobile devices.

Amazon Kindle eReader.

Institutional Access

Table of Contents




Chapter 1 Introduction

1.1 GPUs as Parallel Computers

1.2 Architecture of a Modern GPU

1.3 Why More Speed or Parallelism?

1.4 Parallel Programming Languages and Models

1.5 Overarching Goals

1.6 Organization of the Book

Chapter 2 History of GPU Computing

2.1 Evolution of Graphics Pipelines

2.1.1 The Era of Fixed-Function Graphics Pipelines

2.1.2 Evolution of Programmable Real-Time Graphics

2.1.3 Unified Graphics and Computing Processors

2.1.4 GPGPU: An Intermediate Step

2.2 GPU Computing

2.2.1 Scalable GPUs

2.2.2 Recent Developments

2.3 Future Trends

Chapter 3 Introduction to CUDA

3.1 Data Parallelism

3.2 CUDA Program Structure

3.3 A Matrix–Matrix Multiplication Example

3.4 Device Memories and Data Transfer

3.5 Kernel Functions and Threading

3.6 Summary

3.6.1 Function declarations

3.6.2 Kernel launch

3.6.3 Predefined variables

3.6.4 Runtime API

Chapter 4 CUDA Threads

4.1 CUDA Thread Organization

4.2 Using blockIdx and threadIdx

4.3 Synchronization and Transparent Scalability

4.4 Thread Assignment

4.5 Thread Scheduling and Latency Tolerance

4.6 Summary

4.7 Exercises

Chapter 5 CUDA™ Memories

5.1 Importance of Memory Access Efficiency

5.2 CUDA Device Memory Types

5.3 A Strategy for Reducing Global Memory Traffic

5.4 Memory as a Limiting Factor to Parallelism

5.5 Summary

5.6 Exercises

Chapter 6 Performance Considerations

6.1 More on Thread Execution

6.2 Global Memory Bandwidth

6.3 Dynamic Partitioning of SM Resources

6.4 Data Prefetching

6.5 Instruction Mix

6.6 Thread Granularity

6.7 Measured Performance and Summary

6.8 Exercises

Chapter 7 Floating Point Considerations

7.1 Floating-Point Format

7.1.1 Normalized Representation of M

7.1.2 Excess Encoding of E

7.2 Representable Numbers

7.3 Special Bit Patterns and Precision

7.4 Arithmetic Accuracy and Rounding

7.5 Algorithm Considerations

7.6 Summary

7.7 Exercises

Chapter 8 Application Case Study: Advanced MRI Reconstruction

8.1 Application Background

8.2 Iterative Reconstruction

8.3 Computing FHd

Step 1. Determine the Kernel Parallelism Structure

Step 2. Getting Around the Memory Bandwidth Limitation

Step 3. Using Hardware Trigonometry Functions

Step 4. Experimental Performance Tuning

8.4 Final Evaluation

8.5 Exercises

Chapter 9 Application Case Study: Molecular Visualization and Analysis

9.1 Application Background

9.2 A Simple Kernel Implementation

9.3 Instruction Execution Efficiency

9.4 Memory Coalescing

9.5 Additional Performance Comparisons

9.6 Using Multiple GPUs

9.7 Exercises

Chapter 10 Parallel Programming and Computational Thinking

10.1 Goals of Parallel Programming

10.2 Problem Decomposition

10.3 Algorithm Selection

10.4 Computational Thinking

10.5 Exercises

Chapter 11 A Brief Introduction to OpenCL™

11.1 Background

11.2 Data Parallelism Model

11.3 Device Architecture

11.4 Kernel Functions

11.5 Device Management and Kernel Launch

11.6 Electrostatic Potential Map in OpenCL

11.7 Summary

11.8 Exercises

Chapter 12 Conclusion and Future Outlook

12.1 Goals Revisited

12.2 Memory Architecture Evolution

12.2.1 Large Virtual and Physical Address Spaces

12.2.2 Unified Device Memory Space

12.2.3 Configurable Caching and Scratch Pad

12.2.4 Enhanced Atomic Operations

12.2.5 Enhanced Global Memory Access

12.3 Kernel Execution Control Evolution

12.3.1 Function Calls within Kernel Functions

12.3.2 Exception Handling in Kernel Functions

12.3.3 Simultaneous Execution of Multiple Kernels

12.3.4 Interruptible Kernels

12.4 Core Performance

12.4.1 Double-Precision Speed

12.4.2 Better Control Flow Efficiency

12.5 Programming Environment

12.6 A Bright Outlook

Appendix A Matrix Multiplication Host-Only Version Source Code


A.2 matrixmul_gold.cpp

A.3 matrixmul.h

A.4 assist.h

A.5 Expected Output

Appendix B GPU Compute Capabilities

B.1 GPU Compute Capability Tables

B.2 Memory Coalescing Variations



Programming Massively Parallel Processors discusses the basic concepts of parallel programming and GPU architecture. Various techniques for constructing parallel programs are explored in detail. Case studies demonstrate the development process, which begins with computational thinking and ends with effective and efficient parallel programs.

This book describes computational thinking techniques that will enable students to think about problems in ways that are amenable to high-performance parallel computing. It utilizes CUDA (Compute Unified Device Architecture), NVIDIA's software development tool created specifically for massively parallel environments. Studies learn how to achieve both high-performance and high-reliability using the CUDA programming model as well as OpenCL.

This book is recommended for advanced students, software engineers, programmers, and hardware engineers.

Key Features

  • Teaches computational thinking and problem-solving techniques that facilitate high-performance parallel computing.
  • Utilizes CUDA (Compute Unified Device Architecture), NVIDIA's software development tool created specifically for massively parallel environments.
  • Shows you how to achieve both high-performance and high-reliability using the CUDA programming model as well as OpenCL.


Advanced Students, Software engineers, Programmers, Hardware Engineers


No. of pages:
© Morgan Kaufmann 2010
Morgan Kaufmann
eBook ISBN:


"For those interested in the GPU path to parallel enlightenment, this new book from David Kirk and Wen-mei Hwu is a godsend, as it introduces CUDA (tm), a C-like data parallel language, and Tesla(tm), the architecture of the current generation of NVIDIA GPUs. In addition to explaining the language and the architecture, they define the nature of data parallel problems that run well on the heterogeneous CPU-GPU hardware ... This book is a valuable addition to the recently reinvigorated parallel computing literature."
- David Patterson, Director of The Parallel Computing Research Laboratory and the Pardee Professor of Computer Science, U.C. Berkeley. Co-author of Computer Architecture: A Quantitative Approach

"Written by two teaching pioneers, this book is the definitive practical reference on programming massively parallel processors--a true technological gold mine. The hands-on learning included is cutting-edge, yet very readable. This is a most rewarding read for students, engineers, and scientists interested in supercharging computational resources to solve today's and tomorrow's hardest problems."
- Nicolas Pinto, MIT, NVIDIA Fellow, 2009

"I have always admired Wen-mei Hwu's and David Kirk's ability to turn complex problems into easy-to-comprehend concepts. They have done it again in this book. This joint venture of a passionate teacher and a GPU evangelizer tackles the trade-off between the simple explanation of the concepts and the in-depth analysis of the programming techniques. This is a great book to learn both massive parallel programming and CUDA."
- Mateo Valero, Director, Barcelona Supercomputing Center

"The use of GPUs is having a big impact in scientific computing. David Kirk and Wen-mei Hwu's new book is an important contribution towards educating our students on the ideas and techniques of programming for massively parallel processors."
- Mike Giles, Professor of Scientific Computing, University of Oxford

"This book is the most comprehensive and authoritative introduction to GPU computing yet. David Kirk and Wen-mei Hwu are the pioneers in this increasingly important field, and their insights are invaluable and fascinating. This book will be the standard reference for years to come."
- Hanspeter Pfister, Harvard University

"This is a vital and much-needed text. GPU programming is growing by leaps and bounds. This new book will be very welcomed and highly useful across inter-disciplinary fields."
- Shannon Steinfadt, Kent State University

"GPUs have hundreds of cores capable of delivering transformative performance increases across a wide range of computational challenges. The rise of these multi-core architectures has raised the need to teach advanced programmers a new and essential skill: how to program massively parallel processors." –

"This book is a valuable resource for all students from science and engineering disciplines where parallel programming skills are needed to allow solving compute-intensive problems."--BCS: The British Computer Society’s online journal

About the Authors

David Kirk Author

David B. Kirk is well recognized for his contributions to graphics hardware and algorithm research. By the time he began his studies at Caltech, he had already earned B.S. and M.S. degrees in mechanical engineering from MIT and worked as an engineer for Raster Technologies and Hewlett-Packard's Apollo Systems Division, and after receiving his doctorate, he joined Crystal Dynamics, a video-game manufacturing company, as chief scientist and head of technology. In 1997, he took the position of Chief Scientist at NVIDIA, a leader in visual computing technologies, and he is currently an NVIDIA Fellow.

At NVIDIA, Kirk led graphics-technology development for some of today's most popular consumer-entertainment platforms, playing a key role in providing mass-market graphics capabilities previously available only on workstations costing hundreds of thousands of dollars. For his role in bringing high-performance graphics to personal computers, Kirk received the 2002 Computer Graphics Achievement Award from the Association for Computing Machinery and the Special Interest Group on Graphics and Interactive Technology (ACM SIGGRAPH) and, in 2006, was elected to the National Academy of Engineering, one of the highest professional distinctions for engineers.

Kirk holds 50 patents and patent applications relating to graphics design and has published more than 50 articles on graphics technology, won several best-paper awards, and edited the book Graphics Gems III. A technological "evangelist" who cares deeply about education, he has supported new curriculum initiatives at Caltech and has been a frequent university lecturer and conference keynote speaker worldwide.

Affiliations and Expertise


Wen-mei Hwu Author

Wen-mei W. Hwu is a Professor and holds the Sanders-AMD Endowed Chair in the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign. His research interests are in the area of architecture, implementation, compilation, and algorithms for parallel computing. He is the chief scientist of Parallel Computing Institute and director of the IMPACT research group ( He is a co-founder and CTO of MulticoreWare. For his contributions in research and teaching, he received the ACM SigArch Maurice Wilkes Award, the ACM Grace Murray Hopper Award, the Tau Beta Pi Daniel C. Drucker Eminent Faculty Award, the ISCA Influential Paper Award, the IEEE Computer Society B. R. Rau Award and the Distinguished Alumni Award in Computer Science of the University of California, Berkeley. He is a fellow of IEEE and ACM. He directs the UIUC CUDA Center of Excellence and serves as one of the principal investigators of the NSF Blue Waters Petascale computer project. Dr. Hwu received his Ph.D. degree in Computer Science from the University of California, Berkeley.

Affiliations and Expertise

CTO, MulticoreWare and professor specializing in compiler design, computer architecture, microarchitecture, and parallel processing, University of Illinois at Urbana-Champaign