V3.5.3-0

Technical update:

• PR #388: avoid unnecessary operations in seed cleaning function and in duplicate removal functions.

V3.5.2-0

New functionalities and updates in general physics algorithms:

• #383: release memory allocated for TrackCand vectors on every event / iteration, and avoid allocation of overlap hit-storage vector per seed;
• #385: reinitialize lower bound of dphi hit search windows per track, to avoid artificially/unnecessarily large search windows;
• #386: enlarge size of hit search windows to further increase hit multiplicity;
• #387: enable backward search for iterations seeded by pixel quadruplet seeds, tighten seed duplicate cleaning/merging parameters, and allow for up to 15 hits (4 bits) in seeding layers, to increase number of inner pixel hits and improve impact parameter resolution.

Additional notes:

• #386 and #387 require update of mkFit JSON configuration files.

V3.5.1-0

New functionality and updates in general physics algorithms:

• #381:
  • enable backward search for iterations seeded by pixel triplets and pixel doublets (in response to https://its.cern.ch/jira/browse/PDMVRELVALS-136);
  • update hit selection windows, including backward search.
• #382: tighten candidate filter for pixelLessStep, after #381.

Additional notes:

• #381 corresponds to update of mkFit JSON configuration files.

V3.5.0-0

• Standalone specific:

  • #380 : replicate #379 for standalone configuration.

• New functionality and updates in general physics algorithms:

  • #370 : add counters of layers and hits to match CMSSW counting, including glued hits;
  • #371 : correct transition-region pickup-layer for tobTecStep (mkFit is not enabled by default for tobTecStep);
  • #372 : update mkFit seed partition function, to introduce tolerance for TID modules;
  • #374 : add filter to remove candidates with not-well-defined covariance (addressing #373);
  • #375 : introduce criterion for seed cleaning in pixel-seeded iterations, based on d0(BS);
  • #376 : avoid export of missing hits;
  • #377 : update duplicate cleaning for pixel-seeded iterations, and tighten detachedTripletStep filter (using #370);
  • #379 : update filter for pixelLessStep (using #370).

• Additional notes:

  • #371, #377 and #379 requires update of mkFit JSON configuration files in cms-data;
  • #372 corresponds to update in RecoTracker/MkFit.

V3.4.0-0

• Standalone specific:

  • #364 : write/read beamspot information in mkFit standalone setup;
  • #366 : update input binary files used in standalone setup to include beamspot information;
  • #367 (5307de1 + 8786648): update standalone validation scripts to match CMSSW mkFit configuration.

• New functionality and updates in general physics algorithms:

  • #363 : add beamspot information to mkFit;
  • #365 + #368 : update detachedTripletStep quality filter;
  • #367 (437e489): export missing parameter to mkFit JSON configuration files;
  • #369 : relax duplicate removal for pixelLessStep and add/update quality filters.

• Additional notes:

  • #363 (addition of beamspot information) corresponds to update in RecoTracker/MkFit;
  • #365 + #367 + #369 require update of mkFit JSON configuration files in cms-data.

V3.3.0-0

• New functionality and updates in general physics algorithms:

  • #355 : correct layer edges for layer spread in r (z) for barrel (endcap), for hit selection;
  • #357 : tune candidate ranking at low pT;
  • #359 : update quality filter for detachedTripletStep;
  • #360 : stop track propagation before looping;
  • #361 : apply (loose) cluster charge cut using track impact angle;
  • #362 : cleanup configuration + add functionality for seeding region rebuilding (disabled).

• Additional notes:

  • #359 + #362 require update of mkFit JSON files in cms-data;
  • #362 requires update in RecoTracker/MkFit.

V3.2.0-0

• Standalone specific:

  • #350 : move from array to std::vector for consistency with C++ standard.
  • #352 : use pixel quality DB information in mkFit standalone;

• New functionality and updates in general physics algorithms:

  • #345 + #351 + #354 : backward search for pixelLessStep + tobTecStep, plus fix of backward fit for other iterations;
  • #348 : improve compatibility requirement for propagation to SiStrip hits;
  • #353 : fix error propagation in helix propagation (endcaps).

• Additional notes:

  • #352 (usage of pixel quality DB information) corresponds to update in RecoTracker/MkFit;
  • #345 + #351 + #354 (backward search) require update of mkFit JSON files in cms-data.

V3.1.1

• Standalone specific:

  • #333 : update axis range in standalone validation
  • #342 : update bin files used for standalone validation to fill seed label with no requirement on the seed to have pixel hits
  • #343 : update standalone dump of SiStrip quality DB information, now in the order they appear in the final vector instead of at the point of the insertion (to reflect trackreco/cmssw#40)

• New functionality and updates in general physics algorithms:

  • #334 : fix 1/pT charge flip + improve numerical precision for high pT tracks (http://uaf-10.t2.ucsd.edu/~slava77/figs/mic/mtv/10muHS_CKF_vs_mkFit_310_absPt_77a7f37/plots_initialStep.html)
  • #335 : fix computation of uncertainty in r for hit selection in the endcap region (http://uaf-10.t2.ucsd.edu/~slava77/figs/mic/mtv/ttbar50_CKF_vs_mkFit_pr334_drFix_98dbfd1/plots_ootb.html)
  • #336 : for backward propagation, add option to use track parameters after propagation to PCA (http://uaf-10.t2.ucsd.edu/~mmasciov/MkFit_devs/MTV_PR336/)
  • #339 : use finer binning for usage of SiStrip quality DB information (http://uaf-10.t2.ucsd.edu/~slava77/figs/mic/mtv/10mu_mkFit_dr_dead-restricted-Qbin-p512_m7405a71_c19205b8/plots_ootb.html)
  • #340 : vary chi2 cut for hit selection as a function of layer, iteration, and track candidate kinematics, and add lower bound to dphi cut for hit search windows (http://uaf-10.t2.ucsd.edu/~mmasciov/MkFit_devs/MTV-PR338_10mu/)
  • #344 : update phi geometry boundaries for stereo detector layers, and add lower bound to dphi cut for hit search windows in transition region (http://uaf-10.t2.ucsd.edu/~mmasciov/MkFit_devs/MTV_forPR_10mulowpt/)

• Additional notes:

  • #340 is renaming one mkFit parameter (chi2Cut -> chi2Cut_min), which requires update of cms-data

V3.1.0

• #329 Add Apache license 2.0
• standalone-specific:
  • standalone bin: #318 revert writing of dummy hits from #287
  • standalone bin: #325 tracking ntuple to bin file with seed based on curvilinear covariance
  • #328 Avoid frtree to be written in plots.root + other updates for standalone workflow (samples and only initialStep for BH, STD and CE builds)
• new functionality and updates in general physics algorithms
  • #320 pixelPairStep addition
  • #321 Merge hits from cleaned duplicate seeds into the remaining seed
    • a significant increase in the number of pixel hits on tracks to much closer values as CKF/CMSSW http://uaf-10.t2.ucsd.edu/~lgiannini/plots_compareDupMergeSeeds_7iters/plots_building_initialStep/hitsLayers.pdf
  • #319 Account for dead strip modules
    • this is made optional in #332
  • #324 TrackState conversions from/to GlbCurvilinear to/from CCS (mkFit internal) parameterization
    • a significant recovery in efficiency at high pt
    • #330 bugfix in TrackState conversions from/to GlbCurvilinear
  • #326 Fix charge flip for STD track building option
    • STD and CE now give very similar results again. (CE is the default building option)
  • #322 duplicate removal updated for iterations (except pixelless and tobtec)
    • the efficiencies are still better or comparable to CMSSW with lower duplicate rates and slightly lower fake rates.
    • #331 adjust dupl. cleaning for pixel pair iteration
  • #332 FPE hunt side fixes + dead modules made optional

V3.0.1-1: multi-iter ready for use in CMSSW

• Refactor Matrix.h include to provide lighter includes for a cleaner build
• ConfigJson_Load_File now clones and returns a uniq_ptr
  • A new minor version is added due to minor interface change.