Monitoring and controlling the SKA telescope manager: a peculiar LMC system in the framework of the SKA LMCs

Carlo, Matteo Di; Dolci, M.; Smareglia, R.; Canzari, Matteo; Riggi, S.

doi:10.1117/12.2231614

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…SKA consists of 1.3 million low-frequency arrays, 250 intermediate-frequency arrays, 2500 high-frequency arrays, with the longest baseline of 3000 kilometres [79]. Notwithstanding, SKA monitoring and control system is constructed with Tango, hierarchical design mode [80]. In addition to being used in radio telescope, Tango is also used in the development of control system for synchrotrons, lasers, and other scientific devices [81,82].…”

Section: High-and Low-level Management Middlewarementioning

confidence: 99%

Trends in Architecture and Middleware of Radio Telescope Control System

Wang

Liu

et al. 2021

Advances in Astronomy

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The control system is the central control unit of the radio telescope. It is used to monitor, control, coordinate, and manage software and hardware systems so as to satisfy the requirements of high-precision control in astronomical observation of radio telescope. The control system architecture is the foundation for the implementation of the control system, which determines the stability, scalability, and maintainability of the control system. Furthermore, the architecture design of the control system is closely geared towards the technological development of radio telescope and computer software architecture. In this article, we analyze the characteristic of the control system of a radio telescope in various steps and discuss the development of their architecture and middleware framework. System architecture and middleware framework of control system also serve as a useful reference for the design of other radio telescope control systems.

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Section: High-and Low-level Management Middlewarementioning

confidence: 99%

Trends in Architecture and Middleware of Radio Telescope Control System

Wang

Liu

et al. 2021

Advances in Astronomy

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“…Domain/Business Layer: functional monitoring and controlling of business logic performed by each application [1,2]; Services Layer: Monitors and controls processes on a generic level (not functionality) like web services, database servers, custom applications [3]; Infrastructure Layer: Monitors and controls virtualisation, servers, OS, network, storage.…”

Section: Contextmentioning

confidence: 99%

“…The LM Service retrieves from the LM Core the specific lifecycle script assigned to the particular TM application and applies it locally so that the action requested is performed. It is also possible to have an agentless lifecycle manager like for instance Ansible (see [3]). The LM repository contains all the versioned lifecycle scripts developed and it only interact with the LM Core.…”

Section: Runtime Viewmentioning

confidence: 99%

TM Services: an architecture for monitoring and controlling the Square Kilometre Array (SKA) Telescope Manager (TM)

Carlo

Canzari

Dolci

et al. 2018

Software and Cyberinfrastructure for Astronomy V

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The SKA project is an international effort (10 member and 10 associated countries with the involvement of 100 companies and research institutions) to build the world's largest radio telescope. The SKA Telescope Manager (TM) is the core package of the SKA Telescope aimed at scheduling observations, controlling their execution, monitoring the telescope and so on. To do that, TM directly interfaces with the Local Monitoring and Control systems (LMCs) of the other SKA Elements (e.g. Dishes), exchanging commands and data with them by using the TANGO controls framework. TM in turn needs to be monitored and controlled, in order its continuous and proper operation is ensured. This higher responsibility together with others like collecting and displaying logging data to operators, performing lifecycle management of TM applications, directly dealwhen possible-with management of TM faults (which also includes a direct handling of TM status and performance data) and interfacing with the virtualization platform compose the TM Services (SER) package that is discussed and presented in the present paper.

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“…In astronomy, a few tools with the features of monitoring and scheduling have been used to automate the workflow of telescope observations. For example, the SKA 3 Telescope Manager aims at scheduling observations, control-ling their execution, monitoring the telescope health status, diagnosing and fixing its faults and so on (Di Carlo et al 2016), and the JCMT 4 Observations Management Project (Economou et al 2002;Delorey et al 2004) provides an integrated software architecture and applications to automate all routine tasks associated with flexible scheduling. However, literature search gave very few results about relevant tools available for computational astrophysics.…”

Section: Introductionmentioning

confidence: 99%

SiMon: Simulation Monitor for Computational Astrophysics

Qian

Cai

Zwart

et al. 2017

PASP

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Scientific discovery via numerical simulations is important in modern astrophysics. This relatively new branch of astrophysics has become possible due to the development of reliable numerical algorithms and the high performance of modern computing technologies. These enable the analysis of large collections of observational data and the acquisition of new data via simulations at unprecedented accuracy and resolution. Ideally, simulations run until they reach some pre-determined termination condition, but often other factors cause extensive numerical approaches to break down at an earlier stage. In those cases, processes tend to be interrupted due to unexpected events in the software or the hardware. In those cases, the scientist handles the interrupt manually, which is time-consuming and prone to errors. We present the Simulation Monitor (SiMon) to automatize the farming of large and extensive simulation processes. Our method is light-weight, it fully automates the entire workflow management, operates concurrently across multiple platforms and can be installed in user space. Inspired by the process of crop farming, we perceive each simulation as a crop in the field and running simulation becomes analogous to growing crops. With the development of SiMon we relax the technical aspects of simulation management. The initial package was developed for extensive parameter searchers in numerical simulations, but it turns out to work equally well for automating the computational processing and reduction of observational data reduction.

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Monitoring and controlling the SKA telescope manager: a peculiar LMC system in the framework of the SKA LMCs

Cited by 5 publications

References 3 publications

Trends in Architecture and Middleware of Radio Telescope Control System

Trends in Architecture and Middleware of Radio Telescope Control System

TM Services: an architecture for monitoring and controlling the Square Kilometre Array (SKA) Telescope Manager (TM)

SiMon: Simulation Monitor for Computational Astrophysics

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