Elegant users forum

Thank you Michael, I use parallel_optimization_setup because I want to try other methods of optimization in the future, e.g. "swarm". I am confused. From the description of "parallel_optimization_setup" type: setup command (for Pelegant only). function: define overall parallel optimization parameter...

Is there any hope waiting for reply and fix or should I abandon idea of running pelegant on windows?

Anton

I guess the difference is that tracking is done with dx=1e-6 with respect to closed orbit for given delta. The tune_footprint does not center on the closed orbit, it is always centered on the on-momentum reference orbit; therefore, dx=1e-6 is added (or subtracted) to additional coordinate shift from...

Hello, I calculated nu versus delta by tracking and using sddsnaff, and tune_footprint. The results are different as could be seen in the attached pictures. Could you explain the difference? Using the tune_footprint is straightforward and the code is in tunefootprint.zip Tracking requires postproces...

Hello, I am trying to optimize (increase the area) on-momentum 4d dynamic aperture with just two variables and two covariables After running on windows 10 with elegant 2020.5 Dec 11 2020 mpiexec -n 10 pelegant run-da-opt-4d.ele > results/run-da-opt-4d.log you may see in %s.opt file that there were s...

Thank you, Zhe.

Thank you Zhe. So, if I use "centroid" mode of watch element and CHANGE_T=0 of RFCA then plotting Cdelta versus Ct does give me an ellipse. I tried it and it works. w1: watch,filename="results/ct_ring.w1",mode="centroid" RF: RFCA, L=0.01, VOLT=3.4e6, phase=180, FREQ=3.505013298676E8, CHANGE_T=0 I do...

Hello, My name is Anton. I am starting to use Elegant and as the first step I want to compare tracking results of Elegant and MADX. Here are a lattice file, elegant script and a plot of phase trajectories for two particles. I understand the calculated horizontal phase trajectories, damping is visibl...