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ewaagaard / fma_ions

Frequency Map Analysis (FMA) for ions in the CERN accelerator complex.
Apache License 2.0
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Twiss for new SPS symmetric sequence fails #5

Open ewaagaard opened 9 months ago

ewaagaard commented 9 months ago

Cloning the repo and running the test in tests/sps/test_generating_symmetric_sps_seq.py fails:

Traceback (most recent call last):
  File "/home/elwaagaa/cernbox/PhD/Python/fma_ions/tests/sps/test_generating_symmetric_sps_seq.py", line 7, in <module>
    sps.generate_symmetric_SPS_lattice()
  File "/home/elwaagaa/cernbox/PhD/Projects/fma_ions/fma_ions/sequence_classes_sps.py", line 612, in generate_symmetric_SPS_lattice
    twiss_thin = madx.twiss()  
                 ^^^^^^^^^^^^
  File "/home/elwaagaa/anaconda3/envs/fma_xsuite_env/lib/python3.11/site-packages/cpymad/madx.py", line 388, in twiss
    raise TwissFailed()
cpymad.madx.TwissFailed

Loading pre-existing sequence file SPS_2021_Pb_symmetric.seq that was generated through this method works - what happened along the way?

ewaagaard commented 9 months ago

Also tested to go back to the commit where the symmetric case was added - Twiss still fails. Due to different version of cpymad?