Questions and Answers :
Sixtrack :
Very quick tasks - Six Track - Normal????
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Send message Joined: 9 Aug 08 Posts: 5 Credit: 641,233 RAC: 0 |
I have SixTrack tasks in ready-to-report state with elapsed times of 10, 12, 23, and 24 seconds. Many others are in the 50-something minute range. Is this expected? Or is there something wrong with the very quick runs? Just curious. |
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Send message Joined: 15 Sep 13 Posts: 73 Credit: 5,763 RAC: 0 |
Tasks that end that quickly are said to represent simulations where the particles did not stay focused and hit the wall. They are normal. Some batches of tasks seem to have a relatively high percentage of very quick tasks while other batches seem to have a small percentage. 6 bangers are for wussies. |
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Send message Joined: 9 Aug 08 Posts: 5 Credit: 641,233 RAC: 0 |
Thanks Henry. |
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Send message Joined: 23 Jan 17 Posts: 29 Credit: 375,570 RAC: 0 |
Yeah, the goal of the SixTrack simulations is pretty much to find out how far out we can place the particles before they get lost by hitting the walls. This happens because at some amplitude, nonlinearities in the machine (magnet errors etc.) causes the particle amplitudes to grow exponentially. This is known as the "dynamic aperture" of the machine. We can then study different optics settings, the effects of imperfections in the construction of the machine and in various equipment etc. |
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Send message Joined: 1 May 15 Posts: 6 Credit: 57,124 RAC: 0  
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I had about 20 tasks the completed instantly please look at task: Task 154781705 Thank you! |
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