Doing large runs of ShelfMC can be time intensive. However, if you have access to a computing cluster like Ruby or KingBee, where you are given a node with multiple processors, ShelfMC runs can be optimized by utilizing all available processors on a node. The multithread_shelfmc.sh script automates these runs for you. The script and instructions are attached below.

This document will explain how to dowload, configure, and run multithread_shelfmc.sh in order to do large runs on computing clusters.

####DOWNLOAD####
1.Download multithread_shelfmc.sh
2.Move multithread_shelfmc.sh into ShelfMC directory
3.Do $chmod u+x multithread_shelfmc.sh

####CONFIGURE###
1.Open multithread_shelfmc.sh
2.On line 3, modify shelfmcDir to your ShelfMC dir
3.On line 6, add your run name
4.On line 7, add the total NNU
5.On line 8, add an intial seed
6.On line 10, specify number of processors per node for your cluster
7.On lines 12-49, edit the input.txt parameters
8.On line 50, add the location of your LP_gain_manual.txt
9.On line 80, specify a wall time for each run, remember this will be about 20x shorter than ShelfMC on a single processor
10.On line 83, Specify the group name for your cluster if needed
11.Save file

####RUN####
1.Do $./multithread_shelfmc.sh 
2.There should now be a new directory in the ShelfMC dir with 20 setup files and a run_shelfmc_multithread.sh script
3.Do $qsub run_shelfmc_multithread.sh

###RESULT####
1.After the run has completed, there will be a result .root file in the run directory