10. General coding principles

This chapter covers Determining values for global size and local size Implementing the reduction algorithm in OpenCL Synchronizing work-items in different work-groups

In the preceding chapters, the example host applications have executed kernels using a single work-item. This is fine when you’re learning OpenCL or testing a new application, but for production code, this is unacceptable. OpenCL’s great strength is that you can execute kernels using millions or even billions of work-items, and if you’re not going to put them to use, you might as well program in regular C.