In fact, OpenCL C provides several beneficial features that the C programming language does not offer natively, such as optimized image access functions. Aside from support for recursion and function pointers, there are not many language features that C has that OpenCL C doesn’t have. But see Binary Compatibility Of OpenCL Kernels for a note about how to handle existing binaries.īecause OpenCL C is based on C99, you are free to process your data in OpenCL C functions as you would in C with few limitations. You can, of course, continue to use code you’ve already written to the OpenCL 1.1 standard. Or you can disable the autovectorizer if necessary. You can invoke the autovectorizer regardless of whether you are compiling from Xcode or building the kernels at runtime. The autovectorizer allows you to write one kernel that runs efficiently on both a CPU and a GPU. The autovectorizer compiles and accelerates performance of kernels that run on the CPU up to four times without additional effort. See Using Grand Central Dispatch With OpenCL. OpenCL now integrates with GCD, making it easier for you to focus on making your OpenCL kernels more efficient. You can compile the kernels when your application is built, before it runs. You can write OpenCL functions in separate files and include them in your Xcode project. The Xcode offline compiler removes a configuration step that used to have to be performed before the kernel could be run and facilitates debugging earlier in the development process. Using OpenCL is easier than ever as of OS X v10.7: In addition to support for the OpenCL 1.1 standard, OS X v10.7 adds integration between OpenCL, Grand Central Dispatch ( GCD), and Xcode to make it even easier to use OpenCL in your application. OpenCL lets your application harness the computing power of these processors to improve performance and deliver new features based on compute-intensive algorithms. Introduced with OS X v10.6, OpenCL consists of a C99-based programming language designed for parallelism, a powerful scheduling API, and a flexible runtime that executes kernels on the CPU or GPU. OpenCL™ (Open Computing Language) is an open standard for cross-platform, programming of modern highly-parallel processor architectures. To create high-performance code on GPUs, use the Metal framework instead. Important OpenCL was deprecated in macOS 10.14.
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