Chapter 10. General coding principles
- 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.
Making use of all this processing power isn’t easy. You need a clear understanding of how work-items and work-groups access memory, ...
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