GeantChecklist
Introduction
So much of the understanding of the performance of mu2e depends on simulation studies that a change in geant version could have far-reaching effects. This page contains a checklist for tests to perform before moving to a new geant. Typically, some tests would be skipped because the expert decides the effort to validate would not be justified for the low level of risk.
v4_10_4 EMZ
Started Mar 21, 2018, proposed update to v4_10_4 EMZ from v4_10_2_p03e.
How to trigger Mu2e specific electromagnetic option4 (_EMZ) with modified msc model transition energy (committed 3/16/18)
physics.producers.g4run.debug.diagLevel : 1 # the above is to see the ranges printed physics.producers.g4run.physics.modifyEMOption4 : true physics.producers.g4run.physics.physicsListName : "ShieldingM_EMZ"
How to change the stepper to the new one requiring fewer field evaluations (off, except where noted):
physics.producers.g4run.physics.stepper : "G4DormandPrince745"
clhep 2.4.0.0 (not used yet) will enable the switch from HepJamesRandom to MixMax random number engine (art sets the default)
Results from tests, 1M conversion electrons, 300K beam stage1
| Sample | CPU (s) | MEM (GB) | file size (MB) |
| old beam | 7325 | 1.76 | 630 |
| new beam | 7896(+8%) | 1.79(+2%) | 718(+13%) |
| old CE | 6844 | 1.75 | 92088 |
| new CE | 7099(+4%) | 1.84(+5%) | 187456(+100%) |
> ./summary.sh
nb time 7896.94 mem 1.79531 file 718.993 nc time 7099.25 mem 1.84353 file 187456 ob time 7325.68 mem 1.7601 file 630.252 oc time 6844.46 mem 1.75414 file 92088.2
stops
Why are conversion electron files so much larger:
arProductsizes:
old:
Size Size/Entry Fraction Data Product Name
505449709 50545.0 0.548 mu2e::SimParticlemv_g4run__ceSimReco.
240938209 24093.8 0.261 mu2e::StepPointMCs_g4run_calorimeter_ceSimReco.
30774582 3077.5 0.033 mu2e::CaloShowerSteps_CaloShowerStepFromStepPt_calorimeter_ceSimReco.
28011825 2801.2 0.030 mu2e::StepPointMCs_g4run_tracker_ceSimReco.
new:
Size Size/Entry Fraction Data Product Name
514208625 51420.9 0.277 mu2e::SimParticlemv_g4run__ceSimReco.
745787106 74578.7 0.402 mu2e::StepPointMCs_g4run_calorimeter_ceSimReco.
236050707 23605.1 0.127 mu2e::CaloShowerSteps_CaloShowerStepFromStepPt_calorimeter_ceSimReco.
181788056 18178.8 0.098 mu2e::StepPointMCs_g4run_tracker_ceSimReco.
| Sign off | Responsible | Topic | Notes |
| 3/21/18 | Krzysztof | release notes presented | talk |
| 3/14/18 | Krzysztof | supporting code (new lists, options) | changes enabling new features done in February and March |
| Ray | high-stats conversion electrons comparison | ||
| Ray | high-stats beam stage 1 comparison | ||
| Ray/Krzysztof | CPU time and product sizes | ||
| Ray/Andrei | stopped muon rates and shape | ||
| Rob | magnetic field transport | ||
| Dave (LBL) | tracker charge deposition/hit resolution | talk | |
| Dave (LBL) | tracker background hit rates | ||
| Dave (LBL) | tracker integrated charge | ||
| Dave (LBL) | tracker electronics radiation | ||
| Bertrand | calorimeter resolution | ||
| Bertrand | calorimeter electronics radiation | ||
| Ralf | CRV light model | ||
| Yuri | neutron production rates and transport | ||
| Yuri | CRV deadtime | ||
| Dave (LBL) | conversion electron efficiency | ||
| Jim | STM efficiency | ||
| Jim | STM background | ||
| Andrei | ExtMon efficiency | ||
| Andrei | ExtMon background | ||
| Ralf | cosmic background | ||
| Bob | p-bar background | ||
| Andrei | beam electron background | ||
| Dave (Lou) | Pion backgrounds |
v4_10_4
Started Mar 1, 2018, proposed update to v4_10_4 from v4_10_2_p03e. Effort paused on 3/21/18 - now working on v4_10_4 EMZ
How to trigger Mu2e specific electromagnetic option4 (_EMZ) with modified msc model transition energy (committed 3/16/18), off by default, on where noted.
physics.producers.g4run.debug.diagLevel : 1 # the above is to see the ranges printed physics.producers.g4run.physics.modifyEMOption4 : true physics.producers.g4run.physics.physicsListName : "ShieldingM_EMZ"
How to change the stepper to the new one requiring fewer field evaluations:
physics.producers.g4run.physics.stepper : "G4DormandPrince745"
clhep 2.4.0.0 (not used yet) will enable the switch from HepJamesRandom to MixMax random number engine (art sets the default)
Results from tests, 1M conversion electrons, 300K beam stage1
| Sample | CPU (s) | MEM (GB) | file size (MB) |
| old beam | 9351 | 1.611 | 6.290 |
| new beam | 8483 (-9%) | 1.715 (+6%) | 6.397(+2%) |
| old CE | 6795 | 1.742 | 918.396 |
| new CE | 6180 (-9%) | 1.804 (+4%) | 909.979(-1%) |
beam comparison
C.E. comparison
stopped muons
| Sign off | Responsible | Topic | Notes |
| Krzysztof | release notes presented | available | |
| 3/14/18 | Krzysztof | supporting code (new lists, options) | changes enabling new features done in February and March |
| Ray | high-stats conversion electrons comparison | see links above and talk | |
| Ray | high-stats beam stage 1 comparison | see links above and talk | |
| Ray/Krzysztof | CPU time and product sizes | see above and talk | |
| Ray/Andrei | stopped muon rates and shape | see links above and talk | |
| Rob | magnetic field transport | ||
| Dave (LBL) | tracker charge deposition/hit resolution | ||
| Dave (LBL) | tracker background hit rates | ||
| Dave (LBL) | tracker integrated charge | ||
| Dave (LBL) | tracker electronics radiation | ||
| Bertrand | calorimeter resolution | ||
| Bertrand | calorimeter electronics radiation | ||
| Ralf | CRV light model | ||
| Yuri | neutron production rates and transport | ||
| Yuri | CRV deadtime | ||
| Dave (LBL) | conversion electron efficiency | ||
| Jim | STM efficiency | ||
| Jim | STM background | ||
| Andrei | ExtMon efficiency | ||
| Andrei | ExtMon background | ||
| Ralf | cosmic background | ||
| Bob | p-bar background | ||
| Andrei | beam electron background | ||
| Dave (Lou) | Pion backgrounds |