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OpenCL, or Open Computing Language, is a framework for writing programs that execute across heterogeneous platforms consisting of central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), and other custom hardware accelerators. It allows software to be written in a single-source style so that the logic can be shared between the host CPU and the different compute devices. OpenCL was developed by the Khronos Group, which maintains portable standards for parallel computing, graphics APIs like Vulkan and OpenGL. The language is particularly useful in high-performance computing applications where general-purpose computation on GPUs can significantly accelerate calculations compared to traditional CPU implementations. Since its release in 2009, OpenCL has seen considerable adoption due to its ability to achieve performance portability across different architectures while abstracting some of the complexities inherent in low-level programming for specialized hardware platforms.