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Altera_Forum
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7 years ago

Data sharing among various kernels

Hello, I have tried working with read and write channels to pass data from one kernel to other. I wanted to know, whether a global variable can be shared by various kernels to pass the data. I ...
Altera_Forum's avatar
Altera_Forum
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7 years ago

You can share data between two kernels using global buffers; however, this is only possible if the kernels run sequentially, and one finishes before the other one starts. If the kernels are supposed to run in parallel, this is not possible since OpenCL guarantees global memory consistency only AFTER kernel execution.