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--- hepsim:dev_full [2017/08/30 12:46]
hepsim17
+++ hepsim:dev_full [2017/09/21 13:57]
hepsim17 [Creating LCIO files]
@@ Line 3: / Line 3: @@
-===== Simulation with FPadSim =====
+===== Creating LCIO files =====
-In many cases, HepSim detector simulations were done using SiD-derived software.
+In many cases, HepSim detector simulations were done using ILCSOFT-derived software, such as those used for ILC, CLIC, etc. experiments.
-To create full simulations, you will need to convert ProMC files  to LCIO files. This is described in
+To perform Geant4 simulations, you will need to convert PROMC to SLCIO or STDHEP files. You can convert ProMC files with truth-level information to STDHEP or LCIO (MCParticle) with full simulations using promc2stdhep or promc2lcio converters:
-[[hepsim:usage_truth#converting_to_lcio|LCIO conversions]].
-Many samples posted in HepSim are created with the  package called "fpadsim" (**F**uture **Pa**rticle **D**etector **Sim**ulator"). This package is under constant development.
-The contributed authors of this package since 2015 are:
-  * D.Blyth (HEP/ANL)
-  * J.MacCormick (SLAC)
-  * W.Armstrong  (PHYS/HEP)
-  * S.Chekanov (HEP/ANL)
-  * A.Kotwal (Duke)
-  * J.Strube (PNNL)
-  * J.Marshall (U.Cambridge)
-The package includes packages from ilcsoft, such as SLIC, PandoraPFA, and LCSIM
-The simulation and reconstruction proceeds as: SLIC->LCSIM->slicPandora/PandoraPFA.
-This digram shows the entire chain:
-{{:hepsim:fpdasim_reco.png?700|}}
-The input for SLIC are LCIO files with truth-level information ("MCParticle" table). The files
-are created from ProMC files using the converter promc2lcio (included inside
-the ProMC packages, in the directory "examples").
-This concept originates from the SiD detector(T.Johnson, N.Graf, J.McCormick, J.Strube),
-and later was re-purposed to be used for generic feature detectors, including
-proton pp colliders (S.Chekanov, A.Kotwal). The final step
-of the reconstruction is PandoraPFA (J.Marshall, M.Thomson).
-To create LCIO files with full simulations and reconstruction, you need:
-  * ProMC file from HepSim
-  * Simulation and Reconstruction package called "fpadsim-[version]".
-  * Tag file which includes detector and the simulation and reconstruction sequence.
-The fpadsim package is located [[http://atlaswww.hep.anl.gov/hepsim/soft/ |here]]. It is usually designed for the OSG grid.
-The tag files are also located [[http://atlaswww.hep.anl.gov/hepsim/soft/ |here]].  They have the names "rfull[XXX].tgz".
-After untaring the file fpadsim.tgz, untar the file "rfull[XXX].tgz".
-There is a simple script "Test.sh" that creates a few events and illustrate this concept.
-Note that the version of fpadsim is defined inside the script A_RUN used to create reconstructed events.
-====== Changes in compact.xml ======
-If you want to make changes in the detector design, edit "compact.xml", and then run the converters:
 <code bash>
-JAVA_OPTS="-Xms2048m -Xmx2048m"
+wget http://atlaswww.hep.anl.gov/hepsim/soft/promc_convert.tgz
-GCONVERTER=lcsim/detector-framework/target/lcsim-detector-framework-3.1.6-SNAPSHOT-bin.jar
+tar -zvxf promc_convert.tgz
-GEOM="mydetector" # name of your detector
+cd promc_convert
-java $JAVA_OPTS -jar $GCONVERTER -o lcdd compact.xml $GEOM.lcdd
+promc2lcio.sh input.promc output.slcio    # convert to SLCIO
-slic -g ${GEOM}.lcdd  -G ${GEOM}.gdml
+promc2stdhep.sh input.promc output.stdhep # convert to STDHEP
-echo "heprep compact.xml.."
-java $JAVA_OPTS -jar $GCONVERTER -o heprep compact.xml $GEOM.heprep
-echo "pandora compact.xml.."
-java $JAVA_OPTS -jar $GCONVERTER -o pandora compact.xml $GEOM.pandora
-java $JAVA_OPTS -jar $GCONVERTER -o html compact.xml ${GEOM}.html
 </code>
-where "${GEOM}" is the name of the detector geometry.  Next, check that you do not have overlapping volumes. Run ROOT with the commands:
-<code cpp>
-TGeoManager::Import("mydetector.gdml");
-gGeoManager->ViewLeaves(true);
-gGeoManager->ls("All");
-gGeoManager->CheckOverlaps(0.1); //0.1 tolerance or better!
-gGeoManager->PrintOverlaps();
-gGeoManager->GetTopVolume()->Draw("ogl");
-</code>
-If you see that some volumes overlap, come back to "compact.xml" and make corrections.
-====== Pandora PFA ======
-All information required by Pandora algorithm is stored in the file with the extension ".pandora". This file is created using GeoConvertor, which reads CalorimeterCalibration.properties file.
+Files in the LCIO or STDHEP formats can be used as input for DD4HEP or SLIC simulation packages.
-In particular, it reads:
-  * mipEnergy
+Many samples of HepSim were created with a dedicated FPadSim package. See [[hepsim:dev_fpadsim|FPadSim section]].
-  * mipSigma
-  * mipCut
-  * timeCut
-The sampling fractions are taken from the detector  directory called "SamplingFractions".
-Here files look as this:
-<code>
-BeamCal.properties*
-EcalBarrel.properties*
-EcalEndcap.properties*
-HcalBarrel.properties*
-HcalEndcap.properties*
-LumiCal.properties*
-MuonBarrel.properties*
-MuonEndcap.properties*
-README*
-</code>
-Look at the file:
-<code>
-lcsim/detector-framework/src/main/java/org/lcsim/geometry/compact/converter/pandora/Main.java
-</code>
  --- //[[[email protected]|Sergei Chekanov]] 2017/04/12 21:58//