Speaker
Description
I will be presenting the history of the design, implementation, testing, and release of the production version of a C++-based software for the Gas Gain Stabilization System (GGSS) used in the TRT detector at the ATLAS experiment. This system operates 24/7 in the CERN Point1 environment under the control of the Detector Control System (DCS) and plays a crucial role in delivering reliable data during the LHC’s stable beams.
The uniqueness of this software lies in its initial release around 2004, followed by subsequent refactoring, improvements, and implementation for the Run1 period of the LHC in 2008. Another significant change occurred during Long Shutdown 1 when the operating system transitioned from Windows to Linux for Run2 in 2015. More recently, there have been frequent updates and upgrades to the operating system and external libraries.
My aim is to present the evolution of the software, highlighting changes introduced from an external perspective due to shifts in the environment or requirements. Additionally, I’ll discuss the evolution of the C++ standard, compiler changes, security considerations, and modifications to the build and test environment. During the conference, I will focus on the most compelling and significant milestones, as well as key aspects relevant to the lifecycle of this software.
