While answering this question <https://gis.stackexchange.com/q/318813/79> on
gis.stackexchange, I ran into an odd result. I'm not sure if it is a bug or
not.

If you are using `Operations.add` to sum a series of gridcoverages and all
the images are square (h==w) then for 10 grids of 4000x4000 it takes about
5 seconds which is fine, if you make h=4001 the time jumps to 8000 seconds.
While if you are using Jiffle the time stays the same at about 10 seconds
for each size.

Is this expected? or should I file a bug?

Cheers

Ian

-- 
Ian Turton
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