The best design was 1.557285% from Team Anandtech's JonB
There were two readily apparent problems with both ChicaneLinacA and PhaseRotA. An error in the lattice file cased the RF cavities in the simulation to be 10nanoseconds (100 timesteps) off. It might not seem like much, but at the speeds these particles are traveling at, that's between 2 and 2.5meters (6.5-8feet) making optimization impossible.
The other issue was integral to the client. One of the modifications made to the client for v4.40 was to improve the solenoid field, which ended up making things a lot slower, as well as disagreeing with previous results, as Stephen explained at the time.
The search-space is at the 101221 permutation range, with 407 parameters, requiring v4.41. The lattice initially flatlined in late 2004 and didn't move until early 2006, when a surge boosted it's best value to the record shown here.
This is the 'best' design as recreated in v4.45. Some modification to the lattice was needed to add a backend, as earlier clients had this hard-coded. It is also sped up. The original simulation length as recorded was 19 minutes 40seconds.
The music is Pale Blue Dot, by StellaDrone, available under a CC-BY-NC-ND license.
Next time, PhaseRotB
DATA
- Lattice
- ChicaneLinacB
- Date of release
- May 19, 2004
- Total possible number of permutations
- 101221 (1 with 1221 zeros after it)
- Number of Simulations Run
- 4,629,096
- Total MPTS
- 1,178,020,441.4
Design
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1.557285 (2534.7 Mpts) [v4.41b] <chicanelinacb> by [TA]JonB
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