[Nek5000-users] element order range

[nek5000-users at lists.mcs.anl.gov]

Hello All.

I am doing some tests of Nek5000 against a low-order code.  Under "Performance tips", it is recommended to "design your resolution (mesh) for N=7 or N=9"

Are there any limitations on the range of values for N?  For example, what is the smallest N and largest N that the code can/has been run with?    What are the limitations with running at, say, N = 16?

Thanks.
--Mike