ECL
05-12-2004, 08:07 PM
Version 4.4 is out.
From the website:
The major thing about this version is the release of two new optimisations: ChicaneLinacA, which is the continuation of the chicane design explored in versions 4.2x, and PhaseRotA, which includes the next stage of an alternative design intended to lead into a cooling ring later on.
The new straight sections include accleration via RF (radiofrequency) cavities, in which an electromagnetic field oscillates to accelerate the particles periodically. These are shown as orange/blue rings in the simulation. Since this introduces a time dependency into the tracking, the particles must be released from the initial rod with time-delays to model the timespread in the incident proton beam, which is why the particles now start off 'stuck' to the rod and only 'boil off' later.
The scoring system has had to be changed slightly for the new optimisations, as it is now such a difficult task that the initial random designs probably will have a transmission of zero, so instead negative scores based on how far the furthest muons have travelled have been assigned to the lower simulations, enabling them to climb towards achieving transmission.
Results are now 'compressed' into a binary format before being sent, to save some bandwidth (and also because the new optimisations have more parameters - up to 500 in some cases). This version also includes the fixes for memory leaks found in v4.34.
Also, users who've been idle too long are being excluded from the "official" stats page (though not from rawstats.txt) which means the sinister Terrene Bell is about to take us down. Help remedy this by renewing your acquaintance with this reasonably interesting project and getting your points back on the board.
From the website:
The major thing about this version is the release of two new optimisations: ChicaneLinacA, which is the continuation of the chicane design explored in versions 4.2x, and PhaseRotA, which includes the next stage of an alternative design intended to lead into a cooling ring later on.
The new straight sections include accleration via RF (radiofrequency) cavities, in which an electromagnetic field oscillates to accelerate the particles periodically. These are shown as orange/blue rings in the simulation. Since this introduces a time dependency into the tracking, the particles must be released from the initial rod with time-delays to model the timespread in the incident proton beam, which is why the particles now start off 'stuck' to the rod and only 'boil off' later.
The scoring system has had to be changed slightly for the new optimisations, as it is now such a difficult task that the initial random designs probably will have a transmission of zero, so instead negative scores based on how far the furthest muons have travelled have been assigned to the lower simulations, enabling them to climb towards achieving transmission.
Results are now 'compressed' into a binary format before being sent, to save some bandwidth (and also because the new optimisations have more parameters - up to 500 in some cases). This version also includes the fixes for memory leaks found in v4.34.
Also, users who've been idle too long are being excluded from the "official" stats page (though not from rawstats.txt) which means the sinister Terrene Bell is about to take us down. Help remedy this by renewing your acquaintance with this reasonably interesting project and getting your points back on the board.