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Erica Snider, 12/12/2013 09:41 PM

If you are looking for the legacy cvs-based LArSoft site that was previously hosted on this site, note that all content has been moved to LArSoft cvs (legacy site).
If you are looking for the legacy svn-based LArSoft site, go here.

This is the beta LArSoft redmine project and the future home of the LArSoft redmine project.

LArSoftWiki (beta)

This page is in beta and content is still under construction. Will go live when the migration to git/cmake is completed.

The LArSoft software is designed to work for all planned and running liquid argon experiments at Fermilab. It is written in C++ and built on the ROOT data analysis software, and the art analysis framework supported by the Fermilab Scientific Computing Division for intensity frontier experiments.

To join the LArSoft mailing list, please follow these instructions using the list name LARSOFT.


  • Beta testers: read this first
  • Fermilab computing accounts: see the [[larsoftsvn:Fermilab Computing Access]] page if you need an account.
  • See [[larsoftsvn:Load Balanced Access to General Purpose VMs]] for information on accessing experiment VMs at Fermilab (e.g., lbnegpvm0X, uboonegpvm0X, etc., collectively known as GPCF.).
  • See the documentation section below for information on working with LArSoft, and using git, git flow, mrb and other tools you will need.

Where to find the software


Release Date Purpose Changes / notes Full release notes
v1.00.00 Jan 2014 First production
Replica of final svn-based release. Future LArSoft development
proceeds from this release.
v0.02.01 12/12/2013 "beta" public release Beta suitable for general user testing.
Based on 11/25/2013 snapshot
v0.02.00 12/10/2013 "beta" public release Beta suitable for general user testing.
Problems found in initial testing require
a new release. Based on 11/25/2013 snapshot.
v0.01.01 12/02/2013 "beta" limited release Beta suitable for expert testing N/A
v0.00.09 11/25/2013 "beta" pre-release Second full release under new system. First full re-factoring
of experiment-specific and core LArSoft code in the larcore,
lardata, larevt, and larsim products. Preparation for expert
user testing of beta release.
v0.00.04 9/15/2013 "alpha" release First release of git/cmake/ups-based LArSoft products
Used for mrb, configuration and re-factoring
development and testing


Overview of the user and developer environment

Overview of the user and developer environment

Working with LArSoft

Links to the tools used to work with the software

git and git flow: Understanding CMakeLists.txt and product_deps files mrb and ups:
  • mrb : the multi-repository build tool
  • Re-locatable ups
  • About qualifiers: the things after "-q" in setup <prod> <ver> -q <qual>


Advanced technical how-to's

Release procedures

Walk-through exercises

LArSoft code management and distribution

Working areas

Beta re-factoring

Detailed documentation on using and developing LArSoft code : not a resource