The LBT-AdOpt arbitrator: coordinating many loosely coupled processes

Abstract

The LBT-AdOpt Supervisor is a collection of software processes which control the operations on the set of devices which make up the Adaptive Optics subsystem. The Arbitrator is the software component which coordinates the operations of the Supervisor in order to support operations at the telescope in reply to requests issued by the Instrument Control Software.In this paper we describe the architecture of the Arbitrator, based on an extremely modular, extensible and maintainable approach, designed using object-oriented techniques, that include intensive use of classes, exception handling and design patterns, as well as a clear division of tasks.

MagAO: Status and on-sky performance of the Magellan adaptive optics system

“…Details of the generation and calibration of the mirror commands are described in Quirós-Pacheco et al (2010). 20 The top-level AO software is also an LBT clone, and consists of a supervisor process that monitors the other AO processes as state variables, as described in Fini et al (2008). 21 The ASM and PWFS are subsystems that are controlled by their own processes and communication protocols between them are rendered with the "Message Daemon" diagnostics and telemetry streams between the various hardware, firmware, and software components.…”