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Altera_Forum
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11 years ago

constant memory usage

Hi , __void kernel A(global int * restrict inputA) ; __void kernel B(constant int * restrict inputB) ; There are two kernels (A and B) . Why kernel B 's RAM / LE / FF / util is small...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

This maybe because for the constant cache, there is no need for the kernel to have LSU since the data is onchip. The ROM is not implemented in the kernel since the constant cache is visible to all kernels and therefore will not be reflected in the kernel utilization report.