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ILMATRIX bug
Posted: 24 Oct 2011, 16:00
by petrenko
Elegant is terminated witn an error "Terminated by SIGSEGVProgram trace-back:" if you try to use the ILMATRIX in tracking (but it's OK to use it in Twiss parameters calculation).
Please see the attached example for details.
/Alexey
Re: ILMATRIX bug
Posted: 28 Feb 2012, 09:45
by michael_borland
Alexey,
Sorry I didn't see this earlier. This is a known bug that I haven't gotten around to fixing.
The problem is that elegant is looking for twiss parameters, but they haven't been computed. You can fix this by adding
&twiss_output matched=1 &end
in the file after &run_setup.
See attached.
--Michael
Re: ILMATRIX bug
Posted: 28 Feb 2012, 10:19
by petrenko
Thanks Michael!
For my simulation linear_chromatic_tracking_setup turned out to be just fine, so this bug was not critical to me.
Of course ILMATRIX is more flexible, so I'll be using this element instead of linear_chromatic_tracking from now on.
/Alexey