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Altera_Forum
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9 years ago

Confusion about task vs NDRange implementaions

I'm attempting to implement a simple barrel shifter. I'm able to get it to work using a task based approach but am unable to do so using an NDRange based kernel. I've posted both kernels below. I'...
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Altera_Forum
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9 years ago

It is not possible to infer shift registers of any type in NDRange kernels. As per OpenCL's specification, there is no guarantee of thread ordering in this kernel type, and local memory consistency is only guaranteed at barriers. It is not possible to describe a shift register in NDRange kernels, while conforming to both of these conditions.