[evlatests] Subarrays

[Ken Sowinski]

On Mon, 24 Sep 2007, Barry Clark wrote:

> Sorry, I got overenthusiastic - the correlator controller limits us to
> five subarrays.  When Vivek tried six, he should have gotten a clear
> reject (a bug in the Executor).  Instead the correlator controler crashed.
> A bug somewhere or other.

The limitation lies in the subarray information packet sent
to the CC.  It is defined for five subarrys, and behavior
will be unpredictable if that is exceeded.  It was not made
very self-protecting, because in the old days the Modcomps
did that.

Had the CC been happy telcal wuld likely have croaked.  It
also has an implicit five subarray limit.

Both these limitations can be relaxed if that is deemed
useful.