Addenda  from personal correspondence w/ cuda
>can a single contestant submit multiple solutions?
Yes
>but what about memory consumption?
We'd consider it under elegance.
>How large of an input are we expected to reasonably handle?
The test harness already takes about 20 minutes to complete. Increasing the matrix size past 1025 just isn't practical. We'll run additional tests after we've narrowed down the entries to see how they scale with really large matrices.
>is there an optimal/most frequently used range of matrix order you are looking for?

Nope.
Regards,
Marcus
