Size and persistence of __local memory

Thanks for the quick and informative response! That all makes perfect sense and I think I understand much better now.

I will experiment with __constant parameters a bit, maybe they are more appropriate for what I wanted to do anyways (load a big matrix only once and use it many times). Let's see how much const memory I can get out of my system (using the --const-cache-bytes <N> aoc compiler flag). Otherwise I can always declare my kernel to be a task.