Preamble.
I find that sometimes when I launch Optimise for the first time on a
new project it will run for a very long time.  I think this has only
started being a problem in the last year or so ... sorry I can't be
more specific as to which version it started happening.

Usually I interrupt it and check control points by "human" removing
the outliers and then start it again.   However I assume that until
Optimise has run for the first time the distance figures are not so
helpful for finding those outliers.

Sometimes if I am not in a rush I get on with other work and leave
Hugin/Optimise running in the background.  If it is the last job of
the day I will leave it running overnight and it will usually have
finished by breakfast time.

Current Project
Last weekend I left an optimise session running and so far it has
clocked up more than 70 hours of processor time.  Most of the time it
is keeping one core 100% busy.  Hugin is ocupying 500Mb of RAM and 1Gb
of Virtual Memory.

The running-commentary pop-up tells me that Optimise is on Strategy 2
and has completed 18 iterations.   I THINK it takes longer for one
iteration the longer it runs ... but that is just an impression I have
not been systematic in recording its progress.

The image set is 8 stacks of 3x bracked-exposures each image is a 70Mb
16-bit TIF.

I am using Harry's recent build for the Mac (2011.5.0.5723)  on a  Mac
Pro with a 2.8 Ghz Quad Core Xeon processor with 12Gb of RAM. So I
don't think the problem is that it is short of processing power.


Questions, Conclusions, Suggestions

a) do other people notice this?  Is it only on 16-bit TIFF files? Is
it only on MacOS-X?

b) would it be possible for Optimise to make some sort of check either
initially or between iterations, perhaps something like:

-  if this is the first time it has been run on this project and there
are extreme outliers amongst the control points stop after two or
three iterations and suggest that the user  removes the outlying
control points.
OR
- At the end of an iteration if a control point distance is more than
X (more than x% away from the average?) and hasn't changed more than y
% in that iteration then start to ignore it

c) As well as a "Cancel" button could the Optimise running-commentary
pop-up offer an option "Stop after current Iteration" which would tidy
up the processing and update the control point distances at the end of
the current iteration rather than abandon the work done so far ...
which is what I assume happens with "Cancel"

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