4 This book is intended to present the design of significant scientific
5 applications on GPUs. Scientific applications require more and more
6 computational power in a large variety of fields: biology, physics,
7 chemistry, phenomon model and prediction, simulation, mathematics, etc.
9 In order to be able to handle more complex applications, the use of
10 parallel architectures is the solution to decrease the execution
11 times of these applications. Using many computing
12 cores simulataneously can significantly speed up the processing time.
14 Nevertheless using parallel architectures is not so easy and has always required
15 an endeavor to parallelize an application. Nowadays with general purpose
16 graphics processing units (GPGPU), it is possible to use either general graphic
17 cards or dedicated graphic cards to benefit from the computational power of all
18 the cores available inside these cards. The NVIDIA company introduced Compute
19 Unified Device Architecture (CUDA) in 2007 to unify the programming model to use
20 their video card. CUDA is currently the most used environment for designing GPU
21 applications although some alternatives are available, such as Open Computing
22 Language (OpenCL). According to applications and the GPU considered, a speed up
23 from 5 up to 50, or even more can be expected using a GPU over computing with a
26 The programming model of GPU is quite different from the one of
27 CPU. It is well adapted to data parallelism applications. Several
28 books present the CUDA programming models and multi-core applications
29 design. This book is only focused on scientific applications on GPUs. It
30 contains 20 chapters gathered in 6 parts.
32 The first part presents the GPUs. The second part focuses on two
33 significant image processing applications on GPUs. Part three presents
34 two general methodologies for software development on GPUs. Part four
35 describes three optimization problems on GPUs. The fifth part, the
36 longest one, presents seven numerical applications. Finally part six
37 illustrates three other applications that are not included in the previous
40 Some codes presented in this book are available online on my webpage:
41 http://members.femto-st.fr/raphael-couturier/en/gpu-book/