Difference between revisions of "SoLID Software Detector Simulation"

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= general info =
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This page has been moved to [https://solid.jlab.org/wiki/index.php/Software_Detector_Simulation https://solid.jlab.org/wiki/index.php/Software_Detector_Simulation] in the new [https://solid.jlab.org/wiki SoLID Wiki].  Please do not edit this page.
  
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SoLID detector simulation is based on Geant4 based simulation framework '''GEMC''' http://gemc.jlab.org
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= Introduction =
  
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"solid_gemc" under SoLID repository https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2 has files for SoLID detector configuration, field, scripts etc.
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SoLID detector simulation program "solid_gemc" is based on "GEMC 2.x" with additional hit process routine and outputs for all detector systems in SoLID.
  
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You need both GEMC and solid_gemc to do SoLID detector simulation, refer to the installation section
+
It's located SoLID repository https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2 with source codes and detector configuration, field, scripts etc.
  
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= quick start =
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You need both the jlab framework and SoLID repository before you can compile and run solid_gemc, refer to the [[Solid_Software#quick_start|quick start]] section
  
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== how to setup ==
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The "set_solid" script is used to setup env
  
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If you have any problem, remove or disable your auto env setup script like .csh and .login to and login a fresh terminal to try
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= general note (Please read this!) =
  
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The example below demonstrates how the simulation program work at various environment setting.
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''' [https://hallaweb.jlab.org/wiki/index.php/Detector_simulation_general_note general note] for geometry, materiel, mirror, hit processing, calling gemc as library with added functionally etc'''
  
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=== on ifarm with official installation of framework and SoLID repository (demonstration) ===
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= Setup plot =
  
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The fastest way to see what the simulation look like. You don't need to install any thing, but you can't modify anything either.
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They are stored here
  
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login into ifarm with your account
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http://hallaweb.jlab.org/12GeV/SoLID/download/sim/setup/
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source /home/zwzhao/solid/solid_svn/solid/set_solid
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folow "[[SoLID_Software_Detector_Simulation#how_to_run]]" to run it
+
  
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=== on ifarm with official installation of framework and your SoLID repository (recommended)===
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sort by "Last modified" to see latest
  
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You don't need to install the framework, you can modify simulation configuration. This is the best way to run simulation on ifarm and farm nodes. This is recommend way to compare result and produce results.
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= compile and run =
  
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cd your_choice_of_solid_repo_path
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Once you complete the setup procedure, you can now compile "solid_gemc"
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svn co https://jlabsvn.jlab.org/svnroot/solid
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cd solid
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edit file set_solid by following the instruction within, you only need to change SoLID_GEMC
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source set_solid
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cd $SoLID_GEMC/field
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wget http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_CLEOv8.dat
+
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wget http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_ptarget.dat
+
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folow "how to run" to run it
+
  
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=== on any machine with your installation of framework and your SoLID repository ===
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source your set_solid if you haven't done so
 +
cd $SoLID_GEMC/source/$GEMC_VERSION
 +
scons OPT=1
 +
(then go to a clean terminal and source your set_solid so that "solid_gemc" can found in default PATH)
 +
solid_gemc    (a empty graphic window with simulation setup should show up and confirm it's working, then you can move on full or subsystem simulation)
  
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This gives you maximum freedom to use any version of framework and ability to work on your local machine, And allow you to modify anything. This is the way to run on your local machine.
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= full simulation =
  
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install the framework by following installation instruction
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All subsystems have their own "production" version directories "ec,hgc,lgc,gem,mrpc,spd,magnet,baffle,target,beamline,absorber" at
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cd your_choice_of_solid_repo_path
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"https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2/geometry/"
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svn co https://jlabsvn.jlab.org/svnroot/solid
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cd solid
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edit file set_solid by following the instruction within
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source set_solid
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cd $SoLID_GEMC/field
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wget http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_CLEOv8.dat
+
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wget http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_ptarget.dat
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folow "how to run" to run it
+
−
 
+
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== how to run ==
+
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Once you complete the setup procedure, do the following to run
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 +
Run full SoLID simulation in graphic mode with all subsystems together by
 +
source your set_solid
 
  cd $SoLID_GEMC/script
 
  cd $SoLID_GEMC/script
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  gemc solid_PVDIS.gcard or gemc solid_PVDIS_simple.gcard
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  solid_gemc solid_PVDIS_LD2_full.gcard
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  gemc solid_SIDIS_He3.gcard or  gemc solid_SIDIS_He3_simple.gcard
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  solid_gemc solid_SIDIS_He3_full.gcard
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  gemc solid_SIDIS_NH3.gcard or  gemc solid_SIDIS_NH3_simple.gcard
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  solid_gemc solid_SIDIS_NH3_full.gcard
 +
  solid_gemc solid_JPsi_LH2_full.gcard
  
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= how to run =
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= subsystem simulation =
  
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run "gemc -help" to see running option
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"solid_gemc" can be used for individual sub-detector systems and the whole detector simulation.
  
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read the tutorials on the main GEMC website [https://gemc.jlab.org/gemc/Documentation/Documentation.html here]
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Each of sub-detector systems can do simulation independently and ready to merge it back into the whole system simulation.
  
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another tutorial[https://clasweb.jlab.org/wiki/images/b/b5/GemcFaq.pptx GEMC tuturial on 2014/03/06]
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They are considered "devel" version and located in their individual directories and person responsible as below
 +
         
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/ec/ec_segmented_solid_gemc and https://jlabsvn.jlab.org/svnroot/solid/subsystem/ec/analysis/readme   
 +
  https://jlabsvn.jlab.org/svnroot/solid/subsystem/hgc/hgc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/hgc/analysis/readme   
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/lgc/lgc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/lgc/analysis/readme                             
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/gem/gem_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/gem/analysis/readme             
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/mrpc/mrpc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/mrpc/analysis/readme               
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/spd/spd_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/spd/analysis/readme   
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/target/target_solid_gemc                         
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/magnet/magnet_solid_gemc       
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/baffle/baffle_solid_gemc       
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/target/target_solid_gemc       
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/beamline/beamline_solid_gemc   
 +
https://jlabsvn.jlab.org/svnroot/solid/subsystem/absorber/absorber_solid_gemc   
  
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Use examples in study section to see how to create geometry, store hit and analysis results
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These directories should be kept clean so it only has files necessary for simulation, and ready to copy into the "production" area to be used with other subsystems
  
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= geometry =
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For all other files, please put them into other directories under the same subsystems.
  
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source set_solid
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Please refer to "hgc_solid_gemc" and "hgc" as an example
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cd $SoLID_GEMC/geometry
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read fle "changelog"
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edit perl file to modify geometry, then run commad below to generate new geometry txt files
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./solid_PVDIS_simple.pl config_solid_PVDIS_simple.dat
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./solid_PVDIS.pl config_solid_PVDIS.dat
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./solid_SIDIS_He3_simple.pl config_solid_SIDIS_He3_simple.dat
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./solid_SIDIS_He3.pl config_solid_SIDIS_He3.dat
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= field map =
+
Once you think your subsystem devel version is ready, before making it a production version, be sure to test it with full simulation, meaning it has no conflict with any other production subsystem.
  
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http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_CLEOv8.dat
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copy, paste and modify "$SoLID_GEMC/script/solid_*_full.gcard" to mix your devel version system and other production subsystems to test
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http://hallaweb.jlab.org/12GeV/SoLID/download/field/gemc2/solenoid_ptarget.dat
+
  
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= output =
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After verify no conflict, you may release it as production version by copying ONLY necessary files like all perl script and txt files without any change into its production directory.
  
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Direct output are txt or evio
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= analyzing result =
  
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use text output to debug
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== example ==
  
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convert evio to xml by  
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The root tree output can be analysis by some very simple scripts here
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https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2/analysis/
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evio2xml output.evio
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covert evio to root by
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== header tree and generated tree ==
  
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  evio2root -INPUTF=output.evio
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header tree and generated tree are direct passing through from input, either particle gun or lund file produced by a generator, referring to [https://eic.jlab.org/wiki/index.php/Detector_simulation_general_note#input]
 +
 
 +
For generator used for SoLID, "eicRate" and "halld" both use header defined here https://hallaweb.jlab.org/wiki/index.php/Solid_eventgenerator#Output_file
 +
 
 +
== flux tree ==
 +
 
 +
detector ID for flux hit processing
 +
 
 +
We use built-in flux hit processing for virtual planes near to real detectors to record particles entering or leaving real detectors
 +
 
 +
Each virtual plane has a unique id to identify it and it appears in the "id" branch of "flux" tree
 +
 
 +
Its ID is defined by 7 digits integer like "abcdefg"
 +
a: detector
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    GEM 1, CC 2, EC 3, MRPC 4, SPD 5, muon 6
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b: sub-detector
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    GEM 1 - 6 layer, LGCC 1, HGCC 2, FAEC 1, LAEC 2, MRPC 1, FASPD 1, LASPD 2, muon forward 1, muon endcap donut 2,muon barrel 3
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c: subsub-detector
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    GEM 1, CC 1 front, MRPC 1 front,SPD 1 front,EC 1 front 4 rear
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d,e,f,g: not used for now
 +
for example, 3110000 is for forward angle EC front plane
 +
see code example here https://jlabsvn.jlab.org/svnroot/solid/study/background/background.C
 +
 
 +
= field map =
 +
 
 +
https://github.com/JeffersonLab/solid_gemc/blob/master/field/readme
 +
 
 +
= old way to run simulation, mainly for background study =
 +
 
 +
== geometry ==
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refer to file " $SoLID_GEMC/geometry/changelog" for details
 +
 
 +
source your set_solid
 +
cd $SoLID_GEMC/geometry
 +
edit perl files to modify geometry, then run command below to generate new geometry txt files
 +
./solid_PVDIS_simple.pl config_solid_PVDIS_simple.dat
 +
./solid_PVDIS_LD2.pl config_solid_PVDIS_LD2.dat
 +
./solid_SIDIS_He3_simple.pl config_solid_SIDIS_He3_simple.dat
 +
./solid_SIDIS_He3.pl config_solid_SIDIS_He3.dat
 +
./solid_SIDIS_NH3_simple.pl config_solid_SIDIS_NH3_simple.dat
 +
./solid_SIDIS_NH3.pl config_solid_SIDIS_NH3.dat
 +
 
 +
== materials ==
 +
 
 +
source your set_solid
 +
cd $SoLID_GEMC/geometry
 +
edit the perl file "solid_material.pl" to modify geometry, then run command below to generate new material txt files
 +
./solid_material.pl config_solid_PVDIS_simple.dat
 +
./solid_material.pl config_solid_PVDIS_LD2.dat
 +
./solid_material.pl config_solid_SIDIS_He3_simple.dat
 +
./solid_material.pl config_solid_SIDIS_He3.dat
 +
./solid_material.pl config_solid_SIDIS_NH3_simple.dat
 +
./solid_material.pl config_solid_SIDIS_NH3.dat

Latest revision as of 15:38, 7 December 2020

This page has been moved to https://solid.jlab.org/wiki/index.php/Software_Detector_Simulation in the new SoLID Wiki. Please do not edit this page.

Introduction

SoLID detector simulation program "solid_gemc" is based on "GEMC 2.x" with additional hit process routine and outputs for all detector systems in SoLID.

It's located SoLID repository https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2 with source codes and detector configuration, field, scripts etc.

You need both the jlab framework and SoLID repository before you can compile and run solid_gemc, refer to the quick start section

The "set_solid" script is used to setup env

general note (Please read this!)

general note for geometry, materiel, mirror, hit processing, calling gemc as library with added functionally etc

Setup plot

They are stored here

http://hallaweb.jlab.org/12GeV/SoLID/download/sim/setup/

sort by "Last modified" to see latest

compile and run

Once you complete the setup procedure, you can now compile "solid_gemc" 

source your set_solid if you haven't done so
cd $SoLID_GEMC/source/$GEMC_VERSION
scons OPT=1
(then go to a clean terminal and source your set_solid so that "solid_gemc" can found in default PATH)
solid_gemc    (a empty graphic window with simulation setup should show up and confirm it's working, then you can move on full or subsystem simulation)

full simulation

All subsystems have their own "production" version directories "ec,hgc,lgc,gem,mrpc,spd,magnet,baffle,target,beamline,absorber" at "https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2/geometry/"

Run full SoLID simulation in graphic mode with all subsystems together by 

source your set_solid
cd $SoLID_GEMC/script
solid_gemc solid_PVDIS_LD2_full.gcard
solid_gemc solid_SIDIS_He3_full.gcard
solid_gemc solid_SIDIS_NH3_full.gcard
solid_gemc solid_JPsi_LH2_full.gcard

subsystem simulation

"solid_gemc" can be used for individual sub-detector systems and the whole detector simulation.

Each of sub-detector systems can do simulation independently and ready to merge it back into the whole system simulation.

They are considered "devel" version and located in their individual directories and person responsible as below 

https://jlabsvn.jlab.org/svnroot/solid/subsystem/ec/ec_segmented_solid_gemc and https://jlabsvn.jlab.org/svnroot/solid/subsystem/ec/analysis/readme    
https://jlabsvn.jlab.org/svnroot/solid/subsystem/hgc/hgc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/hgc/analysis/readme    
https://jlabsvn.jlab.org/svnroot/solid/subsystem/lgc/lgc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/lgc/analysis/readme                              
https://jlabsvn.jlab.org/svnroot/solid/subsystem/gem/gem_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/gem/analysis/readme               
https://jlabsvn.jlab.org/svnroot/solid/subsystem/mrpc/mrpc_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/mrpc/analysis/readme                 
https://jlabsvn.jlab.org/svnroot/solid/subsystem/spd/spd_solid_gemc and  https://jlabsvn.jlab.org/svnroot/solid/subsystem/spd/analysis/readme     
https://jlabsvn.jlab.org/svnroot/solid/subsystem/target/target_solid_gemc                          
https://jlabsvn.jlab.org/svnroot/solid/subsystem/magnet/magnet_solid_gemc         
https://jlabsvn.jlab.org/svnroot/solid/subsystem/baffle/baffle_solid_gemc         
https://jlabsvn.jlab.org/svnroot/solid/subsystem/target/target_solid_gemc         
https://jlabsvn.jlab.org/svnroot/solid/subsystem/beamline/beamline_solid_gemc     
https://jlabsvn.jlab.org/svnroot/solid/subsystem/absorber/absorber_solid_gemc

These directories should be kept clean so it only has files necessary for simulation, and ready to copy into the "production" area to be used with other subsystems

For all other files, please put them into other directories under the same subsystems.

Please refer to "hgc_solid_gemc" and "hgc" as an example

Once you think your subsystem devel version is ready, before making it a production version, be sure to test it with full simulation, meaning it has no conflict with any other production subsystem.

copy, paste and modify "$SoLID_GEMC/script/solid_*_full.gcard" to mix your devel version system and other production subsystems to test

After verify no conflict, you may release it as production version by copying ONLY necessary files like all perl script and txt files without any change into its production directory.

analyzing result

example

The root tree output can be analysis by some very simple scripts here https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2/analysis/

header tree and generated tree

header tree and generated tree are direct passing through from input, either particle gun or lund file produced by a generator, referring to [1]

For generator used for SoLID, "eicRate" and "halld" both use header defined here https://hallaweb.jlab.org/wiki/index.php/Solid_eventgenerator#Output_file

flux tree

detector ID for flux hit processing

We use built-in flux hit processing for virtual planes near to real detectors to record particles entering or leaving real detectors

Each virtual plane has a unique id to identify it and it appears in the "id" branch of "flux" tree 

Its ID is defined by 7 digits integer like "abcdefg"
a: detector
   GEM 1, CC 2, EC 3, MRPC 4, SPD 5, muon 6
b: sub-detector
   GEM 1 - 6 layer, LGCC 1, HGCC 2, FAEC 1, LAEC 2, MRPC 1, FASPD 1, LASPD 2, muon forward 1, muon endcap donut 2,muon barrel 3
c: subsub-detector
   GEM 1, CC 1 front, MRPC 1 front,SPD 1 front,EC 1 front 4 rear
d,e,f,g: not used for now
for example, 3110000 is for forward angle EC front plane
see code example here https://jlabsvn.jlab.org/svnroot/solid/study/background/background.C

field map

https://github.com/JeffersonLab/solid_gemc/blob/master/field/readme

old way to run simulation, mainly for background study

geometry

refer to file " $SoLID_GEMC/geometry/changelog" for details 

source your set_solid
cd $SoLID_GEMC/geometry
edit perl files to modify geometry, then run command below to generate new geometry txt files
./solid_PVDIS_simple.pl config_solid_PVDIS_simple.dat
./solid_PVDIS_LD2.pl config_solid_PVDIS_LD2.dat
./solid_SIDIS_He3_simple.pl config_solid_SIDIS_He3_simple.dat
./solid_SIDIS_He3.pl config_solid_SIDIS_He3.dat
./solid_SIDIS_NH3_simple.pl config_solid_SIDIS_NH3_simple.dat
./solid_SIDIS_NH3.pl config_solid_SIDIS_NH3.dat

materials

source your set_solid
cd $SoLID_GEMC/geometry
edit the perl file "solid_material.pl" to modify geometry, then run command below to generate new material txt files
./solid_material.pl config_solid_PVDIS_simple.dat
./solid_material.pl config_solid_PVDIS_LD2.dat
./solid_material.pl config_solid_SIDIS_He3_simple.dat
./solid_material.pl config_solid_SIDIS_He3.dat
./solid_material.pl config_solid_SIDIS_NH3_simple.dat
./solid_material.pl config_solid_SIDIS_NH3.dat
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