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ExternalCMSSW

Private Modules that are compatible with CMSSW for the BMTF project

  • Validator
  • PatternGenerator

Pending changes

  • tag the mismatches files with the run number (now mismatches files are overwritten)
  • cli args for cosmic run cfg
  • remove old leftover files
  • clean up the code

Installation

Assuming that you want to run these modules on top of the CMSSW release CMSSW_X_Y_Z the following steps are required

##
## make your working dir and prepare CMSSW
ssh lxplus.cern.ch
cd <workdir>
cmsrel CMSSW_X_Y_Z && cd CMSSW_X_Y_Z/src
cmsenv
##
## initialize extra repos
git cms-init --upstream-only
git clone https://github.com/panoskatsoulis/ExternalCMSSW.git
##
## fetch deps and compile
git cms-checkdeps -A -a
scram b -j 8

Run the Validation

The Validation code is located in the MuonStudy pkg. There are 2 different configuration files, one for Cosmic Runs and one for Collision Runs.

For a Cosmics Run, one needs to modify the lines in the config file here [1] and then to run the following command

cmsRun ExternalCMSSW/MuonStudy/test/validate_bothAlgos_Cosmics.py

For a Collisions Run, modification is not needed. The parameters are exposed to cli arguments. An example is following

cmsRun ExternalCMSSW/MuonStudy/test/validate_bothAlgos_Collisions.py run=325918 events=10000 dataset=/ExpressPhysics/Run2018D-Express-v1/FEVT gTag=112X_dataRun3_HLT_v3

⚠️ The combination of the following arguments is dummy, they cannot be used to run any example, please use OMS and DQM to find a good run and args ⚠️

Run the Pattern Generator

The code for pattern generation from real events is located in the PatternGenerator pkg.

  1. A sequence of 5 modules is prepared and select events with 1 muon and specific mismatch (DATA-vs-EMULATOR).
  2. Then for only this event (and not the next events), the module DumpRaw is printing out the MP7 buffer contents for all 12 BMTF Processors.
  3. One must have a look into the mismatches files to locate the correct processor and copy it into a file.

The command for running the above sequence is the following

cmsRun ExternalCMSSW/PatternGenerator/test/printEventBitstreams.py

The configuration for generating patterns is not handled with cli-args (like in the Collisions validation), but instead needs to be set manually here [2] (like for cosmics validation).

[1] https://github.com/panoskatsoulis/ExternalCMSSW/blob/CMSSW_11_2_X/MuonStudy/test/validate_bothAlgos_Cosmics.py#L20-L27

[2] https://github.com/panoskatsoulis/ExternalCMSSW/blob/CMSSW_11_2_X/PatternGenerator/test/printEventBitstreams.py#L20-L27