How to run Fast Optical Simulation Jobs¶

Here you will learn how to run a single particle generation with the fast simulation code.
First of all, setup you directory using larsoft v03_08_02, as described here:

How Setup You Directory and launch your first job

All the way until you get to the line:

mrb g lar1ndcode

at this point, we will diverge slightly, in that you need to pull down the feature branch holding the optical simulation:

cd lar1ndcode
git checkout feature/lar1nd_opticalDWA

Now continue to build the lar1ndcode as in the instructions above, repeated here for simplicity:

cd $MRB_BUILDDIR 
mrbsetenv 
mrb i -j8

now change to your running directory and setup your local directory and setup your local version of lar1ndcode and the optical library:

mrbslp 
setup Lar1ndOpticalLib v00_02 

Now you can run the fast sim single gen .fcl file:

lar -c srcs/lar1ndcode/lar1ndcode/JobConfigurations/prodsingle_fastoptical_refl_oplib.fcl -n 5

Proposed TTree structure for Single particle simulations.¶

We are proposing to fill the TTree per event and per pmt, per particle and per energy deposition.