L1T known issues in 2016 to 2023 **Copy**
This pages collects all the information the L1T DPG group has in terms of known issues.Run 3
2023
Muons
| First run (fill) affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 367065 (8723) | ------ | ------ | ------ | ------ | Many Muon Rate vs PU plots drop around 62 PU | PFE elog |
|
| 367661 (8784) | ------ | ------ | ------ | l1_hlt_collisions2023/v98 | ------ | EMTF BDT LUT update (lower pT scale) | Fill 8784 CMSLITOPS-416 |
| 368216 (8850) | ------ | ------ | ------ | ------- | ------ | ME-1/1/23 is offline. Causes a dip in efficiency at eta < -1.6 & -2.6 < phi < -2.4 | Fill 8850 |
| 367546 (8775) | ------ | ------ | ------ | ------- | ------ | ME-1/1/1 is offline. Causes a dip in efficiency at eta < -1.6 & -0.1 < phi < 0.1 | Fill 8775 |
| 366396 (8637) | ------ | ------ | ------ | ------- | ------ | ME-4/2/4 is offline since 2023 run start. No visible effects on performance | Fill 8637 |
| 368454 (8873) | ------ | ------ | ------ | ------- | ------ | SingleMu22 Rate vs. PU discontinuity | JIRA |
| 368336 (8860) | ------ | 368343 | ------ | ------- | ------ | Muon Efficiency Dip in Fill 8860 | JIRA |
| 368542 (8880) | ------ | ------ | ------ | ------- | ------ | ME-1/1/1 and a CPPF link in EMTFm3 is masked due to constant error state. CPPF link corresponds to phi = 2.5 in -1.6 < eta < -1.2. This was apparently a mistake, since masking a CSC chamber can impact CSCID=1 chamber in the same sector. Masking ME-1/1/1 caused ME-1/1/36 to lose occupancy as well, causing bigger inefficiency. Will be fixed after TS1 | Fill 8880 |
| 368822 (8901) | ------ | ------ | ------ | ------- | ------ | VME crate had an issue and we see low occupancy in CSC chambers -2/2/33-36 in this run. On top of that ME-1/1/1 and ME-1/1/36 were already off before this run which is in the same eta/phi region as well. | Fill 8901 |
Calo
| First run (fill) affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 366530 (8653) | ------ | ------ | ------ | l1_hlt_collisions2023/v41 | ------ | Apply veto to first bunch before train (disabled before this run for 2023) | Fill 8653 |
| 366749 (8676) | ------ | ------ | ------ | l1_hlt_collisions2023/v50 | ------ | Updated EG & tau LUTs, apply HB ZS (0.5GeV) at Layer 1 caloParams_2023_v0_1 |
Fill 8678 |
| 366873 (8695) | 366895 (8696) | ------ | ------ | l1_trg_collisions2023/v12 | ------ | HCAL timing scans during fills 8695,8696 | JIRA |
| 367296 (8740) | ------ | ------ | ------ | l1_hlt_collisions2023/v84 | ------ | Set prescale from 0 to 1 to correctly enable veto on first bunch before train (still disabled before this run for 2023) | Fill 8740 |
| 367607 (8780) | ------ | ------ | ------ | l1_hlt_collisions2023/v95 | ------ | Update tau calibration & iso caloParams_2023_v0_2 |
Fill 8780 |
| 368229 (8853) | ------ | ------ | ------ | l1_trg_collisions2023/v25 | ------ | EG Rate vs. PU shifts due to ECAL transparency condition changes between fills | L1TP slides JIRA |
| 368822 (8901) | ------ | ------ | ------ | l1_hlt_collisions2023/v126 | ------ | Update L1T JECs | DPG slides |
| 368822 (8901) | ------ | ------ | ------ | l1_hlt_collisions2023/v126 | ------ | Update HCAL timing alignment | JIRA |
Menu
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 366350 | ------ | ------ | ------ | collisions2023/v36 | ------ | New L1 menu deployment 2023 v1_0_0 |
CMSLITDPG-1102 |
| 366869 | 366943 | ------ | ------ | from collisions2023/v59 to collisions2023/v64 | L1_DoubleLLPJet40, L1_HTT120_SingleLLPJet40, L1_HTT160_SingleLLPJet50, L1_HTT200_SingleLLPJet60, L1_HTT240_SingleLLPJet70 | Increase ps value for LLP seed during 900 b HCAL Phase Scan | CMSHLT-2776 |
| 366801 | ------ | ------ | ------ | collisions2023/v55 | L1_DoubleMu0_Upt6_IP_Min1_Upt4, L1_DoubleMu0_Upt15_Upt7 | Disabling displaced muon seeds due to high rate from EMTF | CMSHLT-2777 |
| 366834 | ------ | ------ | ------ | collisions2023/v56 | L1_DoubleJet_90_30_DoubleJet30_Mass_Min620 | Enable L1_DoubleJet_90_30_DoubleJet30_Mass_Min620 | CMSHLT-2775 |
| 367296 | ------ | ------ | ------ | collisions2023/v84 | L1_FirstBunchBeforeTrain | Unprescale L1_FirstBunchBeforeTrain | CMSHLT-2796 |
| 367406 | ------ | ------ | ------ | collisions2023/v90 | ------ | New L1 menu deployment 2023 v1_1_0 |
CMSLITDPG-1102 |
| 367472 | ------ | ------ | ------ | collisions2023/v93 | L1_DoubleMu0_Upt6_IP_Min1_Upt4, L1_DoubleMu0_Upt15_Upt7 | Re-enabling BMTF based displaced muon seeds | CMSHLT-2801 |
DQM
PR #41381 enables the Tau offline DQM plots.
PR introducing the switch to PUPPI jets has been put on hold until jet experts have the calibration code ready to be ported over.
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|
Others L1 related changes
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|
Others L1 unrelated changes that are of interest for us.
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 367765 | ------ | ------ | ------ | N/A | N/A | HCAL response corrs updated in Prompt (not at L1/HLT) HB energy scale down by 9%, much weaker effect elsewhere | |
| 368557 | ------ | ------ | ------ | N/A | N/A | Update of the CHS JECs for prompt (fixing the previously missing L1 i.e. PU correction) |
2022
Muons
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 355100 | 359922 | 359924 | ------ | -------- | ------ | CSC misalignment causing efficiency drop in eta > 2.1 in EMTF. Fixed by deploying new LUTs on 06/10/2022 | slides |
| 355100 | 356619 | 356709 | ------ | all keys until l1_hlt_collisions2022/v156 | ------ | EMTF was not vetoing quality 0 LCTs. Causes efficiency drop around 1.5 < abs(eta) < 2.1 | slides |
| 355100 | 355463 | 355558 | ------ | all keys until l1_hlt_collisions2022/v103 | ------ | EMTF neighbor links were masked by mistake | ------ |
| 355100 | 357900 | 359356 | ------ | ------------- | ------ | EMTF register configs had bit shift causing "use_gem" flag to be enabled by mistake. Results in efficiency drop in 1.6 < abs(eta) < 2.1 whenever GEM HV is on. Fixed on 26/09/2022 (during TS1) | JIRA |
| 355679 | 356135 | 356309 | ------ | from l1_hlt_collisions2022/v106 until l1_hlt_collisions2022/v132 (for EMTF) and l1_hlt_collisions2022/v159 (for OMTF) | ------ | Faulty CSC sector was masked in EMTF/OMTF. Efficiency drop in negative endcap phi = 1 | slides |
| 359569 | 360225 | 360270 | ------ | ------------- | ------ | CSC chambers ME+2/1/05 and ME+3/1/05 are disabled due to HV issue. Loss of EMTF efficiency at 1.6 < eta < 2.5 && 1.6 > phi > 1.3. Fixed on Oct 12th | elog fix elog |
Smaller EMTF issues and changes
| First run affected | Last run affected | First run with fix | Change date(s) | Comments | Extra resources | ||
|---|---|---|---|---|---|---|---|
| 356712 | ------- | ------- | ------ | ------- | ------ | l1_hlt_collisions2022/v160: EMTF DAQ readout window reduced. No effect on performance just on DQM | ------ |
CSC input
| First run affected | Last run affected | First run with fix | Change date(s) | Comments | Extra resources |
|---|
CPPF input
| First run affected | Last run affected | First run with fix | Change date(s) | Comments | Extra resources |
|---|
BMTF Kalman Filter
Calo
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 356382 | ------ | ------ | ------ | collisions2022/v138 | ------ | Update caloL2 MP firmware to v95 to fix LLP jet and MB eta restriction | JIRA Fill 8063 |
| 356383 | 353386 | ------ | ------ | collisions2022/v138 | ------ | Tested EG, tau & MET calibrations | JIRA Fill 8063 |
| 356633 | ------ | ------ | ------ | collisions2022/v150 | All | Full 2022 calibrations deployed, corresponding to caloParams_2022_v0_4 |
Fill 8083 |
| 356695 | ------ | ------ | ------ | ------ | All | HCAL PFA1p deployed (1bx early) | Fill 8085 |
| 356778 | ------ | ------ | ------ | ------ | All | HCAL PFA1p timing fix (1bx added to algo latency to match PFA2 latency) | Fill 8091 |
| 359272 | ------ | ECAL pedestals update ( elog) |
Fill 8178 | ||||
| 360334 | ------ | ------ | ------ | collisions2022/v250 | All | HCAL calibrations update CMSLITDPG-1021, significant increase in scale |
Fill 8264 |
| 361740 | ------ | ------ | ------ | ------ | All | HCAL calibrations update CMSLITDPG-1072, small decrease in scale |
Fill 8366 |
| 361766 | ---- | ----- | ----- | ---- | ECAL inter-calibration constants update e-log | validation slides Fill 8368 Nov. 8th | |
| 362154 | ------ | ------ | ------ | collisions2022/v330 | All | Update of JEC & EG calib + iso CMSLITDPG-1080. Corresponds to caloParams_2022_v0_5 |
Fill 8401 |
| 362352 | ------ | ------ | ------ | l1_hlt_collisions2022/v331 | All | EG calib + iso CMSHLT-2575. Rolling back to previous EG LUTs (both calib and iso) due to less than linear PU dependency of the EGiso seeds |
|
| 362695 | ------ | ------ | ------ | l1_hlt_collisions2022/v350 | All | HCAL conditions update CMSHLT-1082. |
Fill 8489 |
| 362596 | 362696 | 362698 | ------ | ------ | LLP seeds | The change in the Calo L1 6:1 LUT impacts the HCAL L1 LLP paths, resulted in 5 to 8 times higher rates for LLP seeds. CMSLITDPG-1083, CMSLITDPG-1084. |
Menu
| First run affected | Last run affected | First run with fix | Certification (golden json) | Trigger key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| Run 2 | 362657 | 362673 | ------ | collisions2022/v350 | Removal of the PS counter reset at every LS | CMSLITDPG-980 |
|
| 355100 | 362657 | 362673 | ------ | collisions2022/v350 | L1_TripleMu_2SQ_1p5SQ_0OQ_Mass_Max12, L1_TripleMu_3SQ_2p5SQ_0OQ_Mass_Max12 | Additional OS requirement in TripleMu seeds with invariant mass cut | CMSLITDPG-980 |
| 360850 | ------ | collisions2022/v275 | All | Masking last empty bx before collision (possibly buggy) | |||
| 360327 | ------ | collisions2022/v248 | L1_TripleMu_2SQ_1p5SQ_0OQ_Mass_Max12, L1_TripleMu_3SQ_2p5SQ_0OQ_Mass_Max12 | Disabling L1_TripleMu_2SQ_1p5SQ_0OQ_Mass_Max12 due to high rate after TS1 | CMSLITDPG-960 |
||
| 356041 | 359998 | 360012 | ------ | collisions2022/v242 | L1_SingleMuShower_Nominal, L1_SingleMuShower_Tight | Disabling (and later high PS) of the HMT seeds because of very high rate observed in data, that required an update of the CSC thresholds during TS1 | CMSLITDPG-953 |
| 361464 | ------ | ? | All | Mask last empty bx before train so that bx1 is unprefirable. Mind that isolated bunches remain prefirable ! | ELOG |
DQM
CMSSW_12_4_11_patch1 which fixes some previously empty DQM plots for muon/MET/EG efficiencies was deployed around run 362585.Run 2
2018
Muons
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| ------ | ------ | ------ | GOOD | EMTF | From beginning of 2018, track-building window = 2 BX, fixed theta window hit matching bug. | Presentation Rate impact (slide 15) |
|
| ------ | 315357 | 315361 | GOOD | EMTF | CPPF board +2 loaded with wrong firmware, sending high rates of noise. Excess SingleMu22 triggering for 75° < phi < 165°, efficiency expected to be OK. | Slides |
|
| ------ | 315741 | 315764 | GOOD | EMTF | CPPF firmware bug, all CPPF digis corrupt. Expect 5% SingleMu efficiency loss in 1.2 < abs(eta) < 1.7. | Slides |
|
| 316664 | 316665 | 316666 | l1_trg_collisions2018/v21 | BMTF, OMTF | Some issue with DTs and RPCs ... should update with details. | BMTF OMTF |
|
| 317295 | 317297 | ------ | l1_trg_collisions2018/v25 | BMTF, OMTF | Some issue with RPCs ... SingleMu22 rates spike. | Rate vs. PU |
|
| ------ | ------ | 318622 | GOOD | EMTF | Reduce theta window for eta > 1.6, modify track-building and quality for low quality tracks. | Proposal Details Rate impact (p.15) |
|
| 318653 | 317297 | ------ | omtf_base/v28 | OMTF | Test of the new OMTF firmware, higher then usual data-to-emualator discrepancies. | ||
| 318669 | 318670 | ------ | omtf_base/v28 | OMTF | Additionally to the above the RPC links disabled on the OMTF input, smaller OMTF efficiency. | ||
| 320007 | 320009 | ------ | BAD | EMTF | Broken CSC links in ME+, missing tracks. | EMTF report, Swatch report, L1 report, elog |
|
| 321051 | ------ | ------ | GOOD | All | Luminosity scale shifted, causing apparent decrease in WBM rates for all paths | SingleMu0_BMTF before after SingleEG28er1p5 before after SingleJet180er2p5 before after |
| 321837 | 322243 | ------ | GOOD | omtf_base/v31 | OMTF | OMTF firmrware update - changes that increase the OMTF efficiency in case of running without RPC | https://its.cern.ch/jira/browse/CMSLITOPS-151 https://its.cern.ch/jira/browse/CMSLITOPS-161 http://cmsonline.cern.ch/cms-elog/1048924 |
| 323099 | ------ | ------ | GOOD | omtf_base/v35 | OMTF | OMTF firmrware update - algorithm v6, the eta assignment is improved, includes also changes that increase the OMTF efficiency in case of running without RPC | https://its.cern.ch/jira/browse/CMSLITOPS-171 http://cmsonline.cern.ch/cms-elog/1064282 MKonecki.pdf |
| ------ | ------ | 323693 | GOOD | emtf_base/v102 | EMTF | Small fix to theta and phi coordinate calculation for CSC LCTs in EMTF | Presentation JIRA |
Smaller EMTF issues and changes
CSC input
| First run affected | Last run affected | First run with fix | Change date(s) | Comments | Extra resources |
|---|---|---|---|---|---|
| 316457 | 316655 | 316665 | 2018-05-16 / 2018-05-20 | CSC chamber ME-1/1/21 corrupt wiregroup number, bad theta assignment for LCTs. Creates hole in efficiency for eta < -1.65, -165 < phi < -155 deg (-2.88 < eta < -2.71 rad). Chamber ME-4/1/21 is permanently dead, which exacerbates the inefficiency. | JIRA Slide 15 Offline DQM Online DQM |
| 316701 | 316792 | 316793 | 2018-05-21 / 2018-05-24 | CSC chamber ME-1/1/21 corrupt wiregroup number, bad theta assignment for LCTs. Creates hole in efficiency for eta < -1.65, -165 < phi < -155 deg (-2.88 < eta < -2.71 rad). Chamber ME-4/1/21 is permanently dead, which exacerbates the inefficiency. | JIRA Slide 15 Offline DQM Online DQM |
CPPF input
| First run affected | Last run affected | First run with fix | Change date(s) | Comments | Extra resources |
|---|---|---|---|---|---|
| 315738 | 315741 | 315764 | 2018-04-05 | CPPF board -1 firmware loading failed, sending high rates of noise. No impact on EMTF rates or efficiency. | Slides |
BMTF Kalman Filter
Firmware versions
| Version | First run | Change date | Algo revision (hex) | Comments | Extra resources |
|---|---|---|---|---|---|
| v1.2 | 317505 | 2018-06-06 | |||
| v2.1 | 320399 | 2018-07-27 | |||
| v2.2a | 321870 | 2018-08-27 | |||
| v2.3 | 322397 | 2018-09-07 | |||
| v2.4 | 323301 | 2018-09-22 | Through run 323399 (TS2 ramp-up only) | ||
| v2.5 | 324131 | 2018-10-05 | |||
| v2.7.1 | 324818 | 2018-10-17 | 93500160 | "Final" Kalman version |
Calo
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| ------ | 315490 | 315506 | GOOD | l1_trg_collisions2018/v13 | All | Initial 2018 Layer-1 and Layer-2 calibs deployed, including ZS of low-ET ECAL TPs in TT 26-28. calol2_collisions2018/v18 = caloParams_2018_v1_1_ECALZS |
eLog |
| ------ | ------ | 316455 | GOOD | calol2_collisions2018/v20 | EG, jets | Update EG iso, turn off HF JEC caloParams_2018_v1_1_ECALZS_noHFJEC_newEGIso |
eLog |
| ------ | 316441 | 316455 | GOOD | l1_trg_collisions2018/v21 | EG, HF Jet | EG Loose Isolation LUT fixed (no longer less efficient than Tight Iso for some PU), Layer-2 HF Jet scale factors set to 1.0. | JIRA |
| ------ | ------ | 316700 | GOOD | calol2_collisions2018/v21 | EG | Relax EG H/E cut in the barrel caloParams_2018_v1_2 |
eLog |
| ------ | 316667 | 316700 | GOOD | l1_trg_collisions2018/v22 | EG | H/E cut in barrel loosened from 2-4 to 2^-3. | JIRA |
| 316944 | 316944 | 316985 | ??? | l1_trg_collisions2018/v24 | All | 5/10 FEDs of the EE+ off. | elog DQM Tau eff |
| 317434 | 317434 | ------ | BAD | l1_trg_collisions2018/v27 | All | HCAL out of the run | JIRA |
| ------ | ------ | 318182 | GOOD | calol2_collisions2018/v25 | Tau | Update tau iso caloParams_2018_v1_3 |
eLog |
| ------ | ------ | 319549 | GOOD | l1_trg_collisions2018/v36 | MET, jets | HCAL apply TDC timing cuts in HF. 10 - 20% lower HF jet and MET rates, no efficiency loss. | HCAL changes twiki Jet120_FWD rate vs. PU before after Slides |
| ------ | ------ | 320268 | GOOD | l1_trg_collisions2018/v48 | All | HCAL update IsoTrack calibrations. Increased energy scale especially in endcap, 5 - 10% higher jet and MET rates. | JIRA elog HCAL changes twiki Jet35 rate vs. PU before after |
| 321051 | ------ | ------ | All | Luminosity scale shifted, causing apparent decrease in WBM rates for all paths | SingleMu0_BMTF before after SingleEG28er1p5 before after SingleJet180er2p5 before after |
Menu
| First run affected | Last run affected | First run with fix | Certification (golden json) | Trigger key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| ------ | 315974 | 316058 | GOOD | l1_hlt_collisions2018/v97 | All | L1T 2018 menu v1_0_0 deployed. | GIT WBM |
| ------ | 316271 | 316361 | GOOD | l1_hlt_collisions2018/v113 | All | 2.2e34 column with higher thresholds on most paths replaced by previous 2.0e34 column. | Before After |
| ------ | 316363 | 316377 | GOOD | l1_hlt_collisions2018/v115 | All | Fits to rate vs. PU plots in WBM updated with 2018 data. | Before After |
| 316457 | 316457 | ------ | GOOD | l1_hlt_collisions2018/v119 | All | Special "HLTPhysics" path with many lower thresholds enabled from LS 19 - 130, PU around 50. | Seed thresholds Column changes Menu rate Rate vs. PU |
| ------ | 316569 | 316590 | GOOD | l1_hlt_collisions2018/v123 | EG, MET | Thresholds lowered on Single(Iso)EG, DoubleEG, and MET paths in 2.0e34 column. | Before After |
| ------ | 316879 | 316928 | GOOD | l1_hlt_collisions2018/v129 | EG | In columns <= 2.0e34, prescale factors lowered for L1_SingleEG8er2p5 (20 Hz --> 100 Hz), L1_SingleEG10er2p5 (70 Hz --> 350 Hz), and L1_SingleEG15er2p5 (200 Hz --> 400 Hz). | JIRA |
| 319941 | ------ | l1_hlt_collisions2018/v169 | All | L1 menu updated from v1_0_0 to v2_0_0 Including 18 new seeds and lowering PS for an ALCA seed |
|||
| 321051 | ------ | ------ | All | Luminosity scale shifted, causing apparent decrease in WBM rates for all paths | SingleMu0_BMTF before after SingleEG28er1p5 before after SingleJet180er2p5 before after |
2017
Muons
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources | |
|---|---|---|---|---|---|---|---|---|
| 294034 | ------ | GOOD | EMTF | CSC chambers ME-1/1/34 and 35 killed by water leak. Hole in SingleMu triggering for eta < -1.6, -0.61 < phi < -0.26 (20°). | ||||
| 294034 | ------ | GOOD | EMTF | CSC chamber ME-2/1/03 dead. Reduced SingleMu efficiency for eta < -1.6, 0.61 < phi < 0.96 (20°). | ||||
| 294034 | 300817 | 301046 | GOOD | EMTF | Corrupt LCTs from ME-1/1/06. Hole in SingleMu triggering for eta < -1.6, 0.78 < phi < 0.96 (10°). | |||
| 296295 | GOOD | ugmt_base/v37 | uGMT | Activated uGMT eta/phi coordinate extrapolation to the vertex. Switch to "aggressive" cancel out tuning. | cancel out slides |
|||
| 296443 | 301450 | 301452 | GOOD | EMTF | EMTF input link timing mis-configured in Cosmic runs, see non-uniform CSC LCT distributions | |||
| 298653 | GOOD | EMTF | EMTF assigns SingleMu quality to station 2-3-4 tracks. Applied only in sector -6, reduces inefficiency near ME-1/1/34, and 35. | slides |
||||
| 299297 | 300239 | 300240 | GOOD | EMTF | In ~1/2 of runs, EMTF receiving no LCTs from ME-1/1/23. Hole in SingleMu triggering for eta < -1.6, -2.53 < phi < -2.35 (10°). | |||
| 300088 | GOOD | emtf_base/v35 | EMTF | EMTF assigns SingleMu quality to station 2-3-4 tracks in all sectors. | JIRA |
|||
| 302216 | ------ | GOOD | EMTF | EMTF sending pT = 0 tracks in -2.1 < eta < -1.7, thrown away by uGMT, do not fire trigger. | Report |
|||
| 305033 | 305043 | 305044 | BAD | emtf_base/v43 | EMTF | EMTF buggy firmware resulting in 90% rate (and efficiency) drop for abs(eta) > 1.2 | 1 2 3 |
|
| 305044 | 305044 | 305045 | GOOD | EMTF | EMTF sectors +2 and +4 not building tracks (PC LUTs disappeared), 33% inefficiency for eta > +1.2. | Report |
||
| 306121 | ------ | GOOD | TwinMux | Deployment in production of TwinMux configuration enabling RPC-only triggers in MB1 and MB2 |
Smaller EMTF issues and changes
CSC LCTs (see also CSC whiteboard)
| First run affected | Last run affected | First run with fix | Change date(s) | Comments |
|---|---|---|---|---|
| 300806 | 300816 | 300817 | 2017-08-09 (10) | Chamber ME-1/1/08 (Sector 1b, Station 1, CSC ID 3) transmits no LCTs. |
Calo
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|---|
| 294034 | 304365 | 304366 | GOOD | calol2_algo_mp_egamma_collisions2017/v3 | LooseIsoEG | Slight inefficiency at high pT (~5%) related to potential saturated towers in isolation region. Does not affect IsoEG seeds. |
uGT
2016
Muons
| First run affected | Last run affected | First run with fix | Certification (golden json) | L1 key | Path affected | Comments | Extra resources | |
|---|---|---|---|---|---|---|---|---|
| 272022 | 272022 | GOOD | collisions2016_TSC/v42 | All muons | WBM rates through the roof, not clear why | |||
| 272922 | 272930 | BAD | collisions2016_TSC/v58 | All muons | L1 muon rates crazy, result of buggy HLT release | |||
| 273013 | 273063 | BAD | collisions2016_TSC/v58 | All muons | Sector +1 missing, 273017 and 273063 have excess rate in sector +1 | |||
| 273290 | 273302 | BAD | collisions2016_TSC/v62 | All muons | OMTF Sector +4 phi stuck at 0 | |||
| 273423 | GOOD | All muons | BMTF fixed eta sign-reversal problem. In previous runs, some inefficiency because HLT could not match muons | |||||
| 273725 | GOOD | Double muon | OMTF fixed duplicate EMTF tracks. Reduced DoubleMu rates by removing false triggers from single muons | |||||
| 274094 | GOOD | All muons | OMTF FW change boosting efficiency. Not sure what the change was. Primarily affected abs(eta) ~ 1.2 | |||||
| 274174 | GOOD | All muons | BMTF new pT assignment algorithm. Reduced rate, no noticeable effect on efficiency | |||||
| 275289 | 275290 | GOOD | collisions2016_TSC/v90 | OMTF muons | 20% lower efficiency for OMTF muons caused by runs with high L1A rate | |||
| 275890 | GOOD | collisions2016_TSC/v98 | All muons | OMTF small change (what?) to better match emulator. Small effect on rate and efficiency? | ||||
| 275911 | 275931 | 275963 | GOOD | - endcap muons, phi -45 to -15 | CSC MPC board broken, not sending ME-1/1a hits to the OMTF, EMTF in sector 6 | |||
| 276097 | 276215 | GOOD | None | EMTF fixed DAQ output of LCTs, now matches CSCTF. No impact on tracks. | ||||
| 276831 | 276834 | GOOD | None | Output LCTs from CSCTF missing. Only affects re-emulation from CSCTF digis (OMTF). | ||||
| RunA | 277166 | GOOD | DoubleMuon (+Tag and Proble method) | L1 muon efficiency drops for DoubleMuon trigger with both muons in the same sector in the EMTF. This bug invalidates efficiency measured with tag and probe method. | More details in EndcapHighPtMuonEfficiencyProblem | |||
| 277166 | GOOD | EMTF | Only best-quality track in single sector / BX assigned pT. Others get pT = 0, discarded by uGMT. | |||||
| 277428 | GOOD | EMTF | Tracks mis-assigned with pT of track from same sector, previous BX. | |||||
| 277428 | GOOD | EMTF | pT LUT upgraded to v2, which removes outlier hit (LCT) in otherwise straight 4-hit tracks. | |||||
| 277932 | 278092 | GOOD | EMTF | No LCTs from Sector +5, CSC ID 1, in Stations 1, 3, and 4. Low efficiency from -95 to -105 deg. | ||||
| 277653 | 278018 | GOOD | BMTF re-emulation | BMTF DAQ not working. That means that we can not re-emulated these runs stating from the BMTF input collection. | ||||
| 278175 | - | BMTF | Cancel-out bug fix. Fixes the inneficiency that appears in runs<278175, in the region around eta~-0.3. | |||||
| 282917 | ------ | GOOD | TwinMux | Deployment in production of TwinMux configuration enabling RPC BX correction to DT existing primitives, more details in ELOG |
Smaller EMTF issues and changes
Firmware
| First run affected | Last run affected | First run with fix | Change date | Comments |
|---|---|---|---|---|
| 272022 | 272760 | 2016-05-05 | DAQ ME had output CSC ID range 0 - 8 instead of 1 - 9; SP output ME2_ID, 3_ID, and 4_ID were filled with 4, 5, or 6 when they should have been 7, 8, or 9. | |
| 278986 | 279024 | 2016-08-18 | 2nd-earliest LCT FW in Sector -6, improves LCT recovery in chambers with CSC ID 1. | |
| 280024 | 280187 | 2016-09-05 | 2nd-earliest LCT FW in Sectors -1, -2, -3, -4, +1, +2, and +3, with improved LCT recovery. | |
| 280385 | 281601 | 2016-09-12 | 2nd-earliest LCT FW in remaining Sectors (-5, +4, +5, +6), with improved LCT recovery. | |
| 281601 | 281727 | 281797 | 2016-09-20 (09-28) | Test FW in Sector -6 reduced LCT matching window in station 2, resulting in demoted tracks and some inefficiency. |
| 282092 | 282408 | 2016-10-06 | New FW with symmetric patterns, fixed pattern phi, and fixed ME1 neighbor LCTs ( ???) |
|
| ?????? | ?????? | ?????? | 2016-??-?? (10-19) | FW in all Sectors except +6 reduced LCT matching window in station 2, resulting in demoted tracks and some inefficiency. |
| ?????? | ?????? | ?????? | 2016-??-?? | pT LUT was written with bad values in mode 7 (CLCT bit wrong), mode 10 (random offset), and high pT tracks (1/pT overflows into negative values). Fairly small effect in mode 7, very small for negative pT bug. |
| ?????? | ?????? | ?????? | 2016-??-?? | Theta duplication bug in FW. |
Online Software
| First run affected | Last run affected | First run with fix | Change date | Comments |
|---|---|---|---|---|
| 280024 | 280187 | 2016-09-05 | EMTF LCTs in BX -3 only output if there was a track in the sector. Accidentally changed so this problem affected both BX -2 and -3 (daq_valor_delay = 49). | |
| 280349 | 280363 | 2016-09-08 | LCTs in BX -2 and -3 reported whether or not there was any track (daq_valor_delay = 51). | |
| 281727 | 281797 | 2016-09-28 | DAQ readout window changed from [-3, +4] to [-3, +3] BX. |
DQM
| First run affected | Last run affected | First run with fix | Change date(s) | Comments |
|---|---|---|---|---|
| XXXXXX | XXXXXX | 2016-XX-XX | Spikes in track eta ~1.5 because of overflow OMTF muons not cancelled out, firing DoubleMu triggers. | |
| 272760 | 273302 | 273402 | 2016-05-05 (05-13) | Unpacker incompatible with firmware change; hit occupancy plots shifted, track BX plot empty. |
CSC LCTs (see also CSC whiteboard)
| First run affected | Last run affected | First run with fix | Change date(s) | Comments |
|---|---|---|---|---|
| ongoing | 2016-01-01 | Chamber ME+2/2/29 (Sector 5, Station 2, CSC ID 6) transmits no LCTs. | ||
| 273725 | ongoing | 2016-05-19 | Chamber ME-2/1/3 (Sector 1, Station 2, CSC ID 3) transmits no LCTs. | |
| 276097 | 276215 | 2016-07-01 | EMTF LCTs output to DAQ even if there was no track in the sector. Less than 1% of LCTs received by CSCTF missing in EMTF, vs. ~10% before fix. | |
| 277932 | 278018 | 278167 | 2016-08-01 (08-03) | Due to MPC-EMTF FW mismatch, no LCTs from chambers with CSC ID 1 in Sector +5, except in ME+2. |
| 278769 | ongoing | 2016-08-13 | LCTs from ME-1/1/06 (Sector -1b, Station 1, CSC ID 1) have corrupt halfstrip numbers. | |
| 278986 | 279024 | 2016-08-18 | 2nd-earliest LCT FW in Sector -6, improves LCT recovery in chambers with CSC ID 1. | |
| 280024 | 280187 | 2016-09-05 | 2nd-earliest LCT FW in Sectors -1, -2, -3, -4, +1, +2, and +3, with improved LCT recovery. | |
| 280024 | 280187 | 2016-09-05 | EMTF LCTs in BX -3 only output if there was a track in the sector. Accidentally changed so this problem affected both BX -2 and -3 (daq_valor_delay = 49). | |
| 280349 | 280363 | 2016-09-08 | LCTs in BX -2 and -3 reported whether or not there was any track (daq_valor_delay = 51). | |
| 280385 | 281601 | 2016-09-12 | 2nd-earliest LCT FW in remaining Sectors (-5, +4, +5, +6), with improved LCT recovery. | |
| 281601 | 282092 | 282408 | 2016-09-24 (10-04) | Old MPC FW not sending BC0's from ME+1/1/36 (Sector 6, Station 1b, CSC ID 1), EMTF receives no LCTs. |
| 282408 | ongoing | 2016-10-06 | ME+1/3/17 (Sector +3, Station 1a, CSC ID 9) died: CSC elog |
*For early behavior, check DQM plots from May 15 (run 273450)*
*Later behavior seen clearly in high-rate unstable runs from July 30 (277792 and 277801)*
*Latest update from October 9, run 282735, also using CSCTF validation page
**Dead chambers*
* ME+1/3/17 - not on whiteboard. New as of 2016-10-06.
* ME+2/2/29 - 2016-05-11 : ALCT corrupted data
* ME-2/1/3 - 2015-10-01 : Digital 7.5 V low
*Chambers with low-occupancy halfstrips and wiregroups*
* ME+1/1/13 - not on whiteboard
* ME+1/1/26 - not on whiteboard
* ME+3/1/07 - 2009-11-09 : CFEB3 comparators
* ME+3/1/12 - not on whiteboard.
* ME-1/1/21 - 2016-08-01 : DCFEB6 dead
* ME-1/1/33 - 2014-11-19 : Noisy AFEB 8 (needs higher threshold)
*Chambers with dead halfstrips*
* ME+1/1/03 - 2016-08-25 : DCFEB1 user proms problem, DCFEB6 not configured
* ME+1/1/21 - 2016-05-11 : TMB config fail: Optical link bad
* ME+1/1/25 - 2016-08-01 : DCFEB5 not configured
* ME+1/2/21 - 2012-03-30 : CFEB2 3.3 V = 2.51 V, Voltage regulator problem
* ME+1/2/31 - 2010-09-06 : CFEB5 6 V missing, 6 V fuse blown
* ME+2/1/03 - 2009-11-09 : CFEB4 comparators + sometime CFEB4 no SCA data
* ME+2/2/05 - 2014-09-09 : CFEB1, 6V off
* ME+2/2/10? (not in CSCTF or whiteboard)
* ME+2/2/15 - 2009-11-09 : CFEB5 comparators
* ME+2/2/19 - 2010-08-19 : CFEB5, 5 V read 1.82 V
* ME+3/1/07 - 2009-11-09 : CFEB3 comparators
* ME+3/1/11 - 2015-09-27 : CFEB3, no SCA
* ME+3/2/19 - 2009-11-09 : CFEB5 comparators
* ME+3/2/21? (not in CSCTF or whiteboard)
* ME+3/2/29 - 2009-11-09 : CFEB4 comparators
* ME+4/1/15 - 2009-11-09 : CFEB5 disconnected from DMB, Cause all other CFEBs dead
* ME+4/2/32 - 2014-09-01 : CFEB1 DAV error, Comparators are OK
* ME-1/1/12 - 2016-08-25 : DCFEB7 not configured
* ME-1/1/14 - not on whiteboard
* ME-1/1/30 - not on whiteboard
* ME-1/2/33 - 2009-12-15 : CFEB1, 6 V problem Fuse?, 6 V readings = 0
* ME-1/3/15 - not on whiteboard
* ME-2/1/09 - not on whiteboard
* ME-2/2/27 - not on whiteboard
* ME-2/2/28? (not in CSCTF or whiteboard)
* ME-3/1/09 - 2014-11-21 : CFEB6 Layer6 dead
* ME-3/1/13 - 2009-11-09 : CFEB3 comparators
* ME-3/2/16 - 2016-09-22 : CFEB3 lost 6 V
* ME-4/1/01 - 2009-11-09 : CFEB3 comparators
* ME-4/1/11 - 2010-09-01 : CFEB5 has 6.14 V instead of 3.3 V, FPGA not programmed
* ME-4/1/15 - 2012-04-25 : CFEB5, comparators dead
* ME-4/2/08 - 2015-09-27 : CFEB2, 6 V problem
* ME-4/2/34 - 2014-09-01 : CFEB5, not configured
*Additional issues seen in August*
* 278345 - 278509 : No LCTs from ME+1/1/21 (Sector +4, CSC ID 1, in Station 1a)
* 279588 : No LCTs from ME-1/1/08 (Sector -1, CSC ID 3, in Station 1b)
* 279653 - 280194 : Few or no LCTs from ME-1/1/12 (Sector -2, CSC ID 1, in Station 1b) (Fixed by 280238?)
-->
Calo
| First run affected | Last run affected | Certification (are these runs in the golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|
| 275376 | GOOD | up to collisions2016_TSC/v94 | All electrons | H/E selection applied for all L1EG candidates, may affect efficiency at high pT (>300 GeV) depending on L1 seeds + offline selections used. The fixe went only at the same time as the switch to Run2016C. |
||
| Period H | Period H | GOOD | ?? | All seeds including HTT | Saturated jets were not saturating HTT | L1THTTSaturationBug |
uGT
| First run affected | Last run affected | Certification (are these runs in the golden json) | L1 key | Path affected | Comments | Extra resources |
|---|---|---|---|---|---|---|
| 273302 | GOOD | up tp collisions2016_TSC/v62 | L1_DoubleMu0er1p6_dEta_Max1p8, L1_DoubleMu_10_0_dEta_Max1p8 | Due to a problem with the O2O, the uGT emulator does not find the L1 candidates associated to these triggers | #362 |
|
| 277982 | 278018 (up to LS1038) | BAD till the lumi group account for that | All paths | Un-accounted dead time (WBM did not account of it) of about 6% - generates a general trigger inefficiency | ||
| 278270 | 279029 | GOOD | UGT_collisions_RS/v105 (UGT_BASE_RS_PRESCALES/v140) to UGT_collisions_RS/v118 (UGT_BASE_RS_PRESCALES/v152) | L1_ SingleJet60 | L1 prescale xml is wrong for L1_SingleJet60 | It was 0 2000 1500 1200 1000 700 600 400 70 40 20 15 10 6 4 3 0 while it should be: 2000 1500 1200 1000 700 600 500 360 270 140 70 50 36 27 15 5 0 |
Edit | Attach | Topic revision: r2 - 2023-06-28 - EvanCollins
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