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Erica Snider, 12/11/2013 03:54 AM

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 instructions on 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 for information on working with/developing LArSoft code, and using git, git flow, mrb and other tools you will need.
  • The procedures and tools for building and developing software with this system are completely different from those of the previous system based on svn repositories and the SoftRelTools build system. See the documentation section for details.

Where to find the software

Release notes

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.
v0.0x.yy 12/10/2013 "beta" public release Beta suitable for general user testing N/A
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


Working with LArSoft

Overview of the user and developer environment

Links to the tools used in working with the software

  • mrb : the multi-repository build tool
  • Re-locatable ups


Advanced technical how-to's

Release procedures

Walk-through exercises

LArSoft code management and distribution procedures

Working areas

Beta re-factoring