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jpvand
2002-06-08 20:49:36
ive installed a new hard drive and cant find the results to send when the
program runs from the old drive it attempts to send results but just seems to freeze or lock up on me !  any hints appreciated jpvand
Stephen Brooks
2002-06-15 16:02:27
Copy results.dat and results.txt somewhere safe.  Delete all installations of the program and reinstall on ONE of your hard-drives, then put results.* back into that directory.
The sending problem may just be that your computer doesn't like sending via FTP or something.  Firewalls can make this happen, and you get the occasional Windows 98 installation that randomly refuses to run certain parts of my programs for no apparent reason.


"As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"
Pascal
2002-07-02 11:00:59
I've regarded the results now for several weeks and seen, that there was no change in the best yield up to today.
What happened to the parameters, that there was a little 'jump' after that space of time?

___________________________
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2: Pentium III, 600 MC/s, 256 MB RAM, NIC Intel, Win 98 SE
norrecan
2002-07-02 12:57:39
Stephen, I have a few questions about the results:

Do you have a projection (guess, goal) of the best muon transfer value you'll get?

Any idea how many different parameter combinations there are to check?

Of the ~100,000 results you've received so far how many (if any) are duplicates (i.e. same parameters for defining the accelerator)?

Thanks,

norrecan
gogomaus
2002-07-02 15:21:21
@norrecan
Nobody knows, what is possible, but it looks like 2.5% will not be exceeded under actual sim conditions.
Have a look at Stephen´s report on the muon main page, chapter 3.2, where parameter variation is explained.  One can guess some 1000 exp 8 different permutations of parameter sets.  To calculate all these 10^24 designs one after the other our PCs would have to work billions of years...
Therefore it´s necessary to use an algorithm with selected search abilities.
I guess at least 20% of actual results are multiple/cloned sets.

@pascal
as the pion decay will introduce some 20% deviation within result-%value even under identical parameter conditions, it´s just a question of time, whenever a new top result will be detected.  You may start with 2.1%, and later you´ll get 2.3%. This is pure random, whether it takes you 1 hour, 1 month or 1 year...
wink
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