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OpenCL FFT implementation

Question asked by hotstone on Mar 25, 2014
Latest reply on Mar 26, 2014 by hotstone

Hi all,

I`m trying to understand the following article related to subject:


namely FFT_64 kernel. Author says:


"The above shown listing begins with a function map_id() that computes the relative memory offsets within each workgroup."


But how exactly should this function look like? I guess it should map instances to avoid bank conflicts but have no idea how exactly should this function be implemented. Can someone help me with that?