Multidimensional DSP with GPU acceleration: Difference between revisions

Revision as of 07:19, 5 March 2024

Revision as of 01:59, 28 March 2024

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[[OpenCL]] is an industrial standard which was originally proposed by [[Apple Inc.]] and is maintained and developed by the [[Khronos Group]] now.<ref>{{cite web|title=OpenCL – The open standard for parallel programming of heterogeneous systems|url=https://www.khronos.org/opencl/|website=www.khronos.org|date=21 July 2013|access-date=2015-11-05|language=en}}</ref> OpenCL provides [[C++]] like [[Application programming interface|APIs]] for programming different devices universally, including GPGPUs.

[[File:OpenCL execution flow rev.jpg|alt=Illustrating the execution flow of an OpenCL program/kernel|thumb|474x474px|OpenCL program execution flow]]

The following figure illustrates the execution flow of launching an OpenCL program on a GPU device. The CPU first detects OpenCL devices (GPU in this case) and thanthen invokes a just-in-time compiler to translate the OpenCL source code into target binary. CPU then sends data to GPU to perform computations. When the GPU is processing data, CPU is free to process its own tasks.

===C++ AMP===