Search found 15 matches

by Seb_Wilkes
03 May 2023, 14:27
Forum: Feature Requests
Topic: MRFDF to get the RFDF treatment?
Replies: 1
Views: 945

MRFDF to get the RFDF treatment?

Hi Michael,

I would hope this is not a major request but would be useful for a project I'm looking at performing soon. Would it be possible please to add the changes you made to the RFDF element where you allowed a START_PID and an END_PID?

Cheers,
Seb
by Seb_Wilkes
07 Apr 2023, 02:31
Forum: General
Topic: Using ibsEmittance (fixing vertical)
Replies: 5
Views: 1106

Re: Using ibsEmittance

Hi Michael, Thanks for putting that together. I compiled it, but I just want to check something please. Without using the new fixEmity command, I just wanted to check that they were the same. Is the discrepancy related to the bug you mentioned about using -emityInput? (For context, 'oldRunScript' us...
by Seb_Wilkes
05 Apr 2023, 05:00
Forum: General
Topic: Using ibsEmittance (fixing vertical)
Replies: 5
Views: 1106

Re: Using ibsEmittance

Thanks Michael, that's helpful clarification. I think it also helped to put things into context. This is now risking turning into a feature request, but if I knew I would have a particular vertical emittance, then I could I not regard that as a constant in the horizontal emittance calculations? I as...
by Seb_Wilkes
04 Apr 2023, 11:20
Forum: General
Topic: Using ibsEmittance (fixing vertical)
Replies: 5
Views: 1106

Using ibsEmittance (fixing vertical)

Hello everyone, I hope this is a quick question! I am using ibsEmittance because I want to plot how the beam-dimension s vary with current. For the lattice I am dealing with, there is no coupling between the two planes (I.E. no skew quadrupoles), nor any vertical dispersion. If I supply the vertical...
by Seb_Wilkes
28 Mar 2023, 10:41
Forum: General
Topic: Wake elements with memory leak
Replies: 5
Views: 1380

Re: Wake elements with memory leak

We just converted the wake sdds files into impedance files (and obviously changed the .ele file accordingly), and so far looks like no memory leak -- will update if I see otherwise!
by Seb_Wilkes
28 Mar 2023, 04:14
Forum: General
Topic: Wake elements with memory leak
Replies: 5
Views: 1380

Re: Wake elements with memory leak

That is very odd. Can you say a bit more about the simulations? Are you requesting output from the wake elements? Is this a multi-bunch simulation? --Michael Hi Michael, Yes, this is part of our multi-bunch simulation effort. I've attached our .ele file so you can see the settings of the impedance ...
by Seb_Wilkes
24 Mar 2023, 05:45
Forum: General
Topic: Wake elements with memory leak
Replies: 5
Views: 1380

Wake elements with memory leak

Hello all, I have just recently switched modelling the collective effects from an impedance element to a wake element. It was since then my problems have been beginning; chiefly, my simulations crashing out with out-of-memory errors. After turning on the monitor_memory_usage=1 option, I was able to ...
by Seb_Wilkes
28 Oct 2022, 04:04
Forum: General
Topic: ~10x Speed up for multi-bunch studies with short+long range impedance
Replies: 2
Views: 2459

~10x Speed up for multi-bunch studies with short+long range impedance

Greetings fellow researchers, I wanted to share something I've done that may be of relevance. I'm up for critique, as it's quite a big claim. If it is worth it, then I wonder if Michael could consider adding in a toggleable feature that's officially built into the framework? First off, let me descri...
by Seb_Wilkes
08 Sep 2022, 05:29
Forum: General
Topic: Arbitary charge per bunch with arbitary macro-particles per bunch?
Replies: 3
Views: 3602

Re: Arbitary charge per bunch with arbitary macro-particles per bunch?

Hvaing dug into the source code, it strongly appears that the code is designde around the principle of the charge being fixed around the number of particles or bunches, but not either. I suspect this post is now a feature request. I can't personally think of a simple way of correctly allocating the ...
by Seb_Wilkes
30 Aug 2022, 07:30
Forum: General
Topic: Arbitary charge per bunch with arbitary macro-particles per bunch?
Replies: 3
Views: 3602

Arbitary charge per bunch with arbitary macro-particles per bunch?

Hi all, I'm scratching my head how to do this. Take for instance if we want to run hybrid mode. Right now, if we want to run a bunch with a greater charge, we have to run more particles (with CHARGE, PER_PARTICLE=1). Clearly we are concerned with the running of the single bunch with greater charge, ...