Abstract
This paper focuses on the analysis, design and development of software for the new data acquisition system of the COMPASS experiment at CERN. In this system, the data flow is controlled by custom hardware; the software will therefore be used only for run control and for monitoring. The requirements on the software have been analyzed, and the functionality of the system has been defined. The system consists of several distributed nodes; communication between the nodes is based on a custom protocol and a DIM library. A minimal version of the system has already been implemented. Preliminary results of performance and stability tests have shown that the system fulfills the defined requirements, and is stable. In the next phase of development, the system will be tested on the real hardware. It is expected that the system will be ready for deployment in 2014.
Highlights
Modern high energy physics experiments depend strongly on the computer systems that are used for the simulations, data acquisition, data storage, and data analysis
This paper focuses on the analysis, design and development of software for the new data acquisition system of the COMPASS experiment at CERN
This paper focuses on the software development for a new data acquisition system for the COMPASS experiment
Summary
Modern high energy physics experiments depend strongly on the computer systems that are used for the simulations, data acquisition, data storage, and data analysis. This paper focuses on the software development for a new data acquisition system for the COMPASS experiment. The existing DAQ system, based on the ALICE DATE package, is explained, and the problems with it that triggered the development of the new systems are analyzed. A new system featuring the hardware controlled data flow is presented and the results of a requirements analysis are summarized. A proposal for a minimal version of the software that fulfills these requirements is presented. The first results of performance and scalability tests are summarized. The plans for future development are presented
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