The HLT components project

Welcome to the HLT components project website.

Announcements

To have access to all the available versions, please follow this link.

The Hlt components project is a CMT project built on top of the Gaudi and LHCb projects, which groups together components related to High Level Trigger. Packages belonging to Hlt must follow certain rules for their external dependencies.

Normally, end users should not need to worry about selecting a version of Hlt, as this is selected automatically when selecting an application version. When working outside an application, the environment can be set using the lb-dev script (see the SoftwareEnvTools TWiki)

Reference documentation

Documentation for available releases can be found by following the links on this page. The complete set of release notes for all releases is avaliable here

Reporting bugs

Please report bugs by E-mail to the package authors, as defined in the individual package release notes.

Supported platforms and compilers

Source code and binaries for supported platforms are available on disk (in AFS directory /afs/cern.ch/lhcb/software/releases - $LHCBRELEASES), and in the form of tar file distribution kits. The current list of supported platforms and compilers can be found in the LHCb TWiki pages

Project History

The history of dependencies and included packages can be viewed for any tagged version (including the ones that have been removed) from the SVN web interface. Check for the versions with the relevant SVN tags. For project dependencies see the HLT_vXrY/cmt/project.cmt file. For the versions of the packages included in the HLT project see the HltSys/vXrY/cmt/requirements file.