Abstract :
The CMS trigger system consists of a two stage system: a first level trigger system and a large farm of processors performing the online event filtering. The presented paper gives an overview of the current status of development of the filter farm software. We present an architectural model for efficient filter farm software and show a multi-threaded event filter prototype.
Keywords :
Data acquisition , Event filter , Workstation , Half-sync/half-async pattern , Object Oriented , Active object , ACE , Booch , Objectivity , ODBMS , CMS , Multiple threads