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0001 MPI/Examples : exMPI02
0002 ======================
0003
0004 Description
0005 -----------
0006 An example of dosimetry in a water phantom.
0007
0008 ### Configuration:
0009 - Geometry : water phantom
0010 - Primary : broad beam (200 MeV proton)
0011 - Physics List : FTFP_BERT
0012 - Analysis : ROOT histogramming
0013
0014 The environment variables, *G4LEDATA*, *G4LEVELGAMMADATA* and *G4SAIDXSDATA*
0015 are required for data files.
0016
0017 The enviromnet variable, *ROOTSYS*, is set to the root path of the ROOT package.
0018
0019 ### Features:
0020 - Score dose distribution in a water phantom.
0021 - Learn how to paralleized your applications.
0022 - Create a ROOT file containing histograms/trees in each node.
0023 Each slave node generate a ROOT file, whose file name is different
0024 from each other.
0025
0026
0027 How to build
0028 ------------
0029 Use CMake on Geant4 library installed with CMake build.
0030
0031 This example requires G4mpi library to be installed
0032 (see examples/extended/parallel/MPI/source/REDME.md)
0033
0034 Follow these commands,
0035
0036 > mkdir build
0037 > cd build
0038 > cmake -DG4mpi_DIR=<where-G4mpi-wasintalled>/lib[64]/G4mpi -DCMAKE_CXX_COMPILER=mpicxx \
0039 -DGeant4_DIR=<your Geant4 install path>/lib[64]/Geant4-V.m.n <path-to-source>
0040 (V.m.n is the version of Geant4, eg. Geant4-9.6.0)
0041 > make
0042 > make install
0043
0044 Replace mpicxx with your MPI-compiler wrapper.
0045
0046 How to run
0047 ----------
0048
0049 > mpiexec -n # ./exMPI02 [run.mac]
