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0001 # Info about Global Tags
0002
0003 Original author: Andrew Brinkerhoff <andrew.wilson.brinkerhoff@cern.ch>
0004
0005 Last edit: February 4, 2020
0006
0007
0008 ## L1TMuonEndCapParams
0009
0010 For the L1TMuonEndCapParams tags, here are the appropriate params tags for each year:
0011 - 2016
0012 - **L1TMuonEndCapParams_static_2016_mc**
0013 - PtAssignVersion = 5, firmwareVersion = 49999, PhiMatchWindowSt1 = 0
0014 - 2017
0015 - **L1TMuonEndCapParams_Stage2v1**
0016 - PtAssignVersion = 7, firmwareVersion = 1497518612, PhiMatchWindowSt1 = 1
0017 - It's not clear to me why the firmwareVersion for this tag should be 1497518612 and not 1496792995 or 1504018578
0018 - In the current emulator, makes no difference; but for full consistency 1504018578 might be the best choice for any future "UL" tag for 2017.
0019 - 2018
0020 - **L1TMuonEndCapParams_Stage2v3_2018_HI_mc**
0021 - PtAssignVersion = 7, firmwareVersion = 1539271335 (October 11, 2018), PhiMatchWindowSt1 = 1
0022 - Note that this should be used for *all* 2018 MC, not just Heavy Ion - tag L1TMuonEndCapParams_Stage2v1_2018_mc is WRONG!
0023
0024 ## L1TMuonEndCapForest
0025
0026 For the L1TMuonEndCapForest tags, here are the appropriate forest tags for each year:
0027 - 2016
0028 - **L1TMuonEndCapForest_static_2016_mc**
0029 - Payload 1d58582f55ae84cf5ec5ea91ebcb8b4a23b1af23, 5.2 MB, loaded 2017-05-24 15:45:10 (UTC)
0030 - This payload is also included in data tags L1TMuonEndCapForest_Stage2v1_hlt and L1TMuonEndCapForest_Stage2v2_hlt
0031 - 2017 and 2018
0032 - **L1TMuonEndCapForest_static_Sq_20170613_v7_mc**
0033 - **L1TMuonEndCapForest_Stage2v1_2018_HI_mc**
0034 - Payload 821067bddc9f3e5e4e6dd627ecf0c5e453853ccc, 52 MB, loaded 2017-06-13 10:36:43 (UTC)
0035 - This payload is also included in data tags L1TMuonEndCapForest_Stage2v1_hlt and L1TMuonEndCapForest_Stage2v2_hlt
0036 - Corresponds to /afs/cern.ch/work/a/abrinke1/public/EMTF/PtAssign2017/XMLs/2017_v7/, which is the latest 2017/2018 XMLs
0037
0038
0039 ## How to extract tag and payload information
0040
0041 1. Enter a CMSSW environment and run:
0042 - `cmsenv`
0043 2. To see the lists of existing EMTF O2O tags, run:
0044 - `conddb listTags | grep L1TMuonEndCapParams`
0045 - `conddb listTags | grep L1TMuonEndCapForest`
0046 3. To see the payloads for each tag, do either of the following:
0047 - Go to: <https://cms-conddb.cern.ch/cmsDbBrowser/list/Prod/tags/YourTagName>
0048 - Run: `conddb list YourTagName`
0049 4. Using "Payload" from #3 above, run:
0050 - `conddb dump PayloadHash`
0051
