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Fixes of the slow particle reconstruction

Johannes Junggeburth requested to merge jojungge/athena:MuGirlStau into main

Tagging @amulski, @salderwe, @ivivarel, @janders, @kdipetri

Impact on the main reconstruction chain has been tested using Particle gun events

Improvements have been nicely illustrated by @amulski

image

Changes in CPU time (MuGirl behavior restored after sorting fix)

Algorithm main [ms] patched [ms]
MuonInDetToMuonSystemExtensionAlg 46880 53448
MuonInDetToMuonSystemExtensionAlg_LRT 56940 65065
MuonInsideOutRecoAlg 88395 92216
MuonCombinedAlg 93904 97335
MuonCombinedAlg_LRT 29706 30284
MuGirlStauAlg 3184 12690
MuGirlAlg_LRT 73245 76415

Sanity check: change in number of tracks between main and patched w/ MuGirl fix

  • MuidCo: 504 vs 503
  • MuGirl: 998 vs 964

Tagging: @christos, @jdandoy, @jcatmore, @jchapman for the offline-sw-review-approved label. Btw does there exist a ~"review-pending-sw-approval" label?

Targets: ATLASRECTS-7949

Edited by Alexis Elizabeth Mulski

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