stephenbrooks.orgForumMuon1GeneralWhat the flame-grilled wombles just happened to ChicaneLinacB90?
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Stephen Brooks
2004-12-19 11:46:47
So it suddenly jumped massively after a long slow climb.  It did this before actually when it went to 0.3%. Is this manual intervention or just a sudden lucky hit by someone's client program?
Nexus
2004-12-20 05:00:24
Just wondering the same thing.
Alex
2004-12-20 06:22:22
Maybe it's because of the DPC Megaflush?
[DPC]TeamNWW - Huub
2004-12-20 07:14:41
I commented on that on our forum yesterday.. Could be coincidence ofcourse but maybe there were some promising strains among the flushed results?
Stephan Hermens[RKN]
2004-12-20 08:21:37
Hi there.

I noticed, that the first results with a positive percentage were offsprings of the best ChicaneLinacB designs.  The parameters of those designs were pretty similar, with random parameters for the linac cells 61 - 90. They still had "linaccells=000" in their genome.  So at the end of November I took the best ChicaneLinacB90 design and tweaked the parameters for the last 30 linac cells to match the patterns of the first 60 cells.
This design immediatly jumped over the 1% hurdle.
I tried 4 other similar designs with comparable results and let my PC run muon without automatic upload.  (Only part-time, so not many results were generated) The best design on my PC was 1.107818% when I finally uploaded last Friday (18:42 UTC).
Beginning on Saturday the PCs from other participants uploaded designs that were further improved.
Stephen Brooks
2004-12-21 12:01:47
This also explains the early jump to 0.3% from negative a month ago - probably when someone put a ChicaneLinacB result inf ro test and got the first 60 cells right.
DPC_Meloentje
2004-12-21 12:58:17
That's excactly what I did.
I took my best ChicaneLinacB result and placed it as Test in queue.txt and got a .25% result.
It also must have been a lucky shot because I wasn't able to repeat this with other ChicaneLinacB results.
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