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2023 Journal article Open Access OPEN
SmartORC smart orchestration of resources in the compute continuum
Carlini E., Coppola M., Dazzi P., Ferrucci L., Kavalionak H., Korontanis I., Mordacchini M., Tserpes K.
The promise of the compute continuum is to present applications with a flexible and transparent view of the resources in the Internet of Things-Edge-Cloud ecosystem. However, such a promise requires tackling complex challenges to maximize the benefits of both the cloud and the edge. Challenges include managing a highly distributed platform, matching services and resources, harnessing resource heterogeneity, and adapting the deployment of services to the changes in resources and applications. In this study, we present SmartORC, a comprehensive set of components designed to provide a complete framework for managing resources and applications in the Compute Continuum. Along with the description of all the SmartORC subcomponents, we have also provided the results of an evaluation aimed at showcasing the framework's capability.Source: Frontiers in high performance computing 1 (2023). doi:10.3389/fhpcp.2023.1164915
DOI: 10.3389/fhpcp.2023.1164915
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See at: doi.org Open Access | ISTI Repository Open Access | www.frontiersin.org Open Access | CNR ExploRA


2022 Conference article Open Access OPEN
Network measurements with function-as-a-service for distributed low-latency edge applications
Carlini E., Kavalionak H., Dazzi P., Ferrucci L., Coppola M., Mordacchini M.
Edge computing promises to bring computation and storage close to end-users, opening exciting new areas of improvement for applications with a high level of interactivity and requiring low latency. However, these improvements require careful scheduling of applications in the correct Edge resource. This decision is generally taken by considering multiple parameters, including the network capabilities. In this paper, we discuss an approach that measures latency and bandwidth between multiple clients and Edge servers. The approach is based on recent Serverless computing technologies, and it is meant as a support to take timely and correct scheduling decisions in the Edge. We also provide the description of a proof of concept implementation of the said approach.Source: FRAME 2022 - 2nd Workshop on Flexible Resource and Application Management on the Edge (colocated with HPDC 2022), pp. 25–28, Minneapolis, Minnestota, USA, 01/07/2022
DOI: 10.1145/3526059.3533622
Project(s): ACCORDION via OpenAIRE
Metrics:


See at: ISTI Repository Open Access | dl.acm.org Restricted | doi.org Restricted | CNR ExploRA


2022 Conference article Open Access OPEN
Energy and QoE aware placement of applications and data at the edge
Mordacchini M., Ferrucci L., Carlini E., Kavalionak H., Coppola M., Dazzi P.
Recent years are witnessing extensions of cyber-infrastructures towards distributed environments. The Edge of the network is gaining a central role in the agenda of both infrastructure and application providers. Following the actual distributed structure of such a computational environment, nowadays, many solutions face resource and application management needs in Cloud/Edge continua. One of the most challenging aspects is ensuring highly available computing and data infrastructures while optimizing the system's energy consumption. In this paper, we describe a decentralized solution that limits the energy consumption by the system without failing to match the users' expectations, defined as the services' Quality of Experience (QoE) when accessing data and leveraging applications at the Edge. Experimental evaluations through simulation conducted with PureEdgeSim demonstrate the effectiveness of the approach.Source: SEBD 2022 - 30th Italian Symposium on Advanced Database Systems, pp. 109–116, Tirrenia, Pisa, Italy, 19-22/06/2022

See at: ISTI Repository Open Access | ceur-ws.org Restricted | CNR ExploRA


2022 Conference article Open Access OPEN
Decentralized federated learning and network topologies: an empirical study on convergence
Kavalionak H., Carlini E., Dazzi P., Ferrucci L., Mordacchini M., Coppola M.
Federated Learning is a well-known learning paradigm that allows the distributed training of machine learning models. Federated Learning keeps data in the source devices and communicates only the model's coefficients to a centralized server. This paper studies the decentralized flavor of Federated Learning. A peer-to-peer network replaces the centralized server, and nodes exchange model's coefficients directly. In particular, we look for empirical evidence on the effect of different network topologies and communication parameters on the convergence in the training of distributed models. Our observations suggest that small-world networks converge faster for small amounts of nodes, while xx are more suitable for larger setups.Source: SEBD 2022 - 30th Italian Symposium on Advanced Database Systems, pp. 317–324, Tirrenia, Pisa, Italy, 19-22/06/2022
Project(s): TEACHING via OpenAIRE

See at: ceur-ws.org Open Access | ISTI Repository Open Access | CNR ExploRA


2021 Conference article Open Access OPEN
Latency preserving self-optimizing placement at the edge
Ferrucci L., Mordacchini M., Coppola M., Carlini E., Kavalionak H., Dazzi P.
The Internet is experiencing a fast expansion at its edges. The wide availability of heterogeneous resources at the Edge is pivotal in the definition and extension of traditional Cloud solutions toward supporting the development of new applications. However, the dynamic and distributed nature of these resources poses new challenges for the optimization of the behaviour of the system. New decentralized and self-organizing methods are needed to face the needs of the Edge/Cloud scenario and to optimize the exploitation of Edge resources. In this paper we propose a distributed and adaptive solution that reduces the number of replicas of application services that are executed throughout the system, all the while ensuring that the latency constraints of applications are met, thus allowing to also meet the end users' QoS requirements. Experimental evaluations through simulation show the effectiveness of the proposed approach.Source: FRAME'21 - 1st Workshop on Flexible Resource and Application Management on the Edge, pp. 3–8, Virtual Event, Sweden, 25/06/2021
DOI: 10.1145/3452369.3463815
Project(s): ACCORDION via OpenAIRE, ACCORDION via OpenAIRE
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See at: ISTI Repository Open Access | ZENODO Open Access | dl.acm.org Restricted | CNR ExploRA


2021 Report Open Access OPEN
ACCORDION D4.1 - Edge/Cloud continuum management framework report (I)
Taleb T., Violos J., Tsanakas S., Pagoulatou T., Theodoropoulos T., Coppola M., Dazzi P., Ferrucci L., Diego F., Marin E., Kourtelis N.
This deliverable provides the first report summarizing the scientific advancements, during the first year of the project, achieved by WP4 Tasks. Work Package (WP) 4, dubbed Edge/Cloud continuum management framework, is organized around 6 Tasks is to develop a framework that efficiently manages the deployment and runtime of ACCORDION applications on the continuum.Source: ISTI Project report, ACCORDION, D4.1, 2021
Project(s): ACCORDION via OpenAIRE

See at: ISTI Repository Open Access | CNR ExploRA


2021 Conference article Open Access OPEN
Impact of network topology on the convergence of decentralized federated learning systems
Kavalionak H., Carlini E., Dazzi P., Ferrucci L., Mordacchini M., Coppola M.
Federated learning is a popular framework that enables harvesting edge resources' computational power to train a machine learning model distributively. However, it is not always feasible or profitable to have a centralized server that controls and synchronizes the training process. In this paper, we consider the problem of training a machine learning model over a network of nodes in a fully decentralized fashion. In particular, we look for empirical evidence on how sensitive is the training process for various network characteristics and communication parameters. We present the outcome of several simulations conducted with different network topologies, datasets, and machine learning models.Source: ISCC 2021 - 26th IEEE Symposium on Computers and Communications, Athens, Greece, 05-08/09/2021
DOI: 10.1109/iscc53001.2021.9631460
Project(s): TEACHING via OpenAIRE
Metrics:


See at: ISTI Repository Open Access | ieeexplore.ieee.org Restricted | CNR ExploRA


2021 Conference article Open Access OPEN
Self- organizing energy-minimization placement of QoE-constrained services at the edge
Mordacchini M., Ferrucci L., Carlini E., Kavalionak H., Coppola M., Dazzi P.
The wide availability of heterogeneous resources at the Edgeof the network is gaining a central role in defining and developing newcomputing paradigms for both the infrastructures and the applications.However, it becomes challenging to optimize the system's behaviour, dueto the Edge's highly distributed and dynamic nature. Recent solutionspropose new decentralized, self-adaptive approaches to face the needs ofthis scenario. One of the most challenging aspect is related to the opti-mization of the system's energy consumption. In this paper, we proposea fully decentralized solution that limits the energy consumed by thesystem, without failing to match the users expectations, defined as theservices' Quality of Experience (QoE.). Specifically, we propose a schemewhere the autonomous coordination of entities at Edge is able to reducethe energy consumption by reducing the number of instances of the ap-plications executed in system. This result is achieve without violatingthe services' QoE, expressed in terms of latency. Experimental evalua-tions through simulation conducted with PureEdgeSim demonstrate theeffectiveness of the approachSource: GECON 2021: 18th International Conference on Economics of Grids, Clouds, Systems and Services, pp. 133–142, Virtual Event, Rome, 21-23/09/2021
DOI: 10.1007/978-3-030-92916-9_11
Project(s): ACCORDION via OpenAIRE
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See at: ISTI Repository Open Access | link.springer.com Restricted | CNR ExploRA


2021 Report Open Access OPEN
D6.3 ACCORDION system implementation (I)
Carlini E., Vailati A., Rola J., Ferrucci L., Kavalionak H., Tserpes K., Ferrann D.
This document covers the implementation activities put in place in the ACCORDION consortium to enable a smooth integration of the distributed ACCORDION platform. The first part of the document describes the three core components of the platform, while the second part describes the first integration testing performed on such components.Source: ISTI Project report, ACCORDION, D6.3, 2021
Project(s): ACCORDION via OpenAIRE

See at: ISTI Repository Open Access | CNR ExploRA


2020 Report Open Access OPEN
Studio e analisi di strumenti per le reti sensoriali per il comfort nella casa da parte dell'utente
Miori V., Russo D., Ferrucci L.
Il documento analizza le reti di sensori che fungono da infrastruttura per la rilevazione e la raccolta delle informazioni utili al miglioramento del comfort nelle abitazioni, ipotizzando le possibili soluzioni adottabili. Vengono altresì discusse le problematiche che dovranno essere affrontate nei laboratori di sperimentazione sul tema, oltre alla presentazione e all'analisi di alcuni strumenti hardware e software, consoni alla valutazione delle reti sensoriali stesse.Source: ISTI Technical Reports, 2020/021, 2020, 2020
DOI: 10.32079/isti-tr-2020/021
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See at: ISTI Repository Open Access | CNR ExploRA


2020 Report Open Access OPEN
Validazione dei criteri per la misurabilità delle performance richieste al manager dell'efficienza energetica
Miori V., Russo D., Ferrucci L.
In questo documento vengono analizzate le metodologie adottate per la validazione dei criteri per la misurabilità delle performance richieste al manager dell'efficienza energetica del progetto SHELL. Nella prima parte del documento viene introdotta l'architettura del manager dell'energia e successivamente vengono esaminati i parametri di riferimento per le performance che il manager deve soddisfare A tal proposito viene preso in considerazione lo standard internazionale LEED, atto a certificare l'efficienza raggiunta dal manager. Ai fini della validazione di tali criteri, nella seconda parte del documento, vengono descritti quatto casi di studio sviluppati durante le attività progettuali.Source: ISTI Technical Reports, 2020/022, 2020, 2020
DOI: 10.32079/isti-tr-2020/022
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See at: ISTI Repository Open Access | CNR ExploRA


2020 Report Unknown
A fundamental challenge for IoT development
Miori V., Russo D., Ferrucci L.
The Internet of Things (IoT) paradigm aims to build a global network infrastructure for discovering and interconnecting billions of smart devices. One of the most critical application domains for IoT is Domotics: thanks to the entry of big new players, such as Google and Amazon, Domotics has received new impetus. However, Domotics and IoT still suffer from the existence of disparate non-interoperable systems and devices that are unable to communicate with each other. In this survey, we analyze the different approaches to achieving interoperability between domotic platforms existing today in the scientific and commercial worlds.Source: pp.1–34, 2020

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2020 Report Open Access OPEN
ACCORDION D2.3 - Architecture design (I)
Tserpes K., Kousiouris G., Xydis S., Korodanis I., Kafatari T., Dazzi P., Carlini E., Kavalionak H., Ferrucci L., Huici F., Fabregas E. M., Kourtellis N., Diego A. F., Violos I., Psomakelis E., Kami?ski M., Lipa B., Loven T., Gonzalez Rozad Y., Toro A., Russo M., Blasi L., Vailati A., Di Girolamo M., Zinelaabidine N., Ledwo? Z., Zadtootaghaj S., Pateraki M., Fotis S., Kallipolitis L., Vantolas S.
This deliverable provides an account of the work done for the specification of the ACCORDION ecosystem architecture, which is mainly comprised of two artefacts: the infrastructure to support the cloud-edge continuum and the platform to manage the resources and the applications hosted in that infrastructure. The main outcomes of the work described in this deliverable are: a) the definition of components that comprise the architecture as well as their interactions, and; b) the assignment of the implementation of those components to specific project Tasks and partners. The deliverable describes the process for reaching to those outcomes, starting with the delineation of the scope of the described artefacts and working down to their specifics. The main approach used is the analysis of the platform use case scenarios. In practice, we analyze the scenarios and extract the required functionality. Then we cluster and map this functionality to components. Finally, we schematically present the interactions of those components using block and sequence diagrams. These outcomes are then validated against the use case requirements, especially those linked to the applications operation itself. This is meant to provide a proof-of-concept that the ACCORDION architecture is able to support the ACCORDION applications.Source: ISTI Project report, ACCORDION, D2.3, 2020
Project(s): ACCORDION via OpenAIRE

See at: ISTI Repository Open Access | CNR ExploRA


2019 Conference article Open Access OPEN
Interoperability of home automation systems as a critical challenge for IoT
Miori V., Russo D., Ferrucci L.
The spread of enabling technologies for the Internet of Things allows the creation of new scenarios in which home automation plays a significant role. Platforms for smart cities and communities, which must include applications for energy efficiency, health, mobility, security, etc., cannot ignore the use of data gathered directly from homes. In order to implement such scenarios, all the related technological infrastructure and home systems must be able to understand each other and exchange information. In this work, we present a new platform that achieves interoperability between heterogeneous home automation systems. It allows different, incompatible technologies to cooperate inside and outside the home, thus creating a single ecosystem. In order to achieve tins goal, specific problems need to be solved to be able to construct 'bridges' between the various home automation networks currently in use. In this regard, some specific solutions adopted for integrating two different technologies (KNX and MyHome) within a home automation platform are illustrated.Source: 2019 4th International Conference on Computing, Communications and Security (ICCCS), Rome, Italy, 10-11 October, 2019
DOI: 10.1109/cccs.2019.8888125
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See at: ISTI Repository Open Access | doi.org Restricted | ieeexplore.ieee.org Restricted | CNR ExploRA


2019 Report Open Access OPEN
Analisi dello stato dell'arte e individuazione dei criteri per la misurabilità delle performance della piattaforma per l'interoperabilità dei sistemi domotici
Miori V., Russo D., Ferrucci L.
Il documento descrive e analizza i criteri per la misurabilità delle performance, allo stato dell'arte. Per perseguire questo obiettivo vengono, in prima istanza, presi in considerazione gli elementi di interesse che sono oggetto di tale misurabilità. Successivamente, vengono definite le metodologie di applicazione dei criteri che sono alla base degli strumenti identificati come idonei allo scopo. Per completezza, vengono poi presentate anche le modalità di svolgimento dei test di valutazione nei quali vengono applicati di tali criteri, nei diversi contesti previsti dalla letteratura scientifica in argomento.Source: ISTI Technical reports, 2019

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2019 Report Open Access OPEN
Definizione dell'architettura del framework di interoperabilità domotica con analisi di vincoli ed interazioni con le LAN
Miori V., Russo D., Ferrucci L.
In questo documento viene effettuata l'analisi delle interazioni tra il framework SHELL e le altre LAN, viste come le altre possibili installazioni domotiche di natura più o meno proprietaria (ad esempio, KNX, MyHome, Zwave, ZigBEE, ecc.). Dopo un breve escursus sulle caratteristiche di funzionamento dei framework di interoperabilità già esistenti in letteratura, ne vengono analizzate le problematiche generali in termini di limiti e vincoli possibili alla interoperabilità tra il framework SHELL e le LAN e tra le LAN connesse al framework stesso.Source: ISTI Technical reports, 2019

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2019 Report Open Access OPEN
L'adattamento dei gateway al framework di interoperabilità domotica
Miori V., Russo D., Ferrucci L., Pillitteri L.
Lo scopo del documento è quello di descrivere il ruolo che avranno i gateway all'interno della piattaforma SHELL. In particolare sono descritte le caratteristiche e funzionalità che essi dovranno offrire, con soluzioni pratiche e generali per la loro implementazione.Source: ISTI Technical reports, 2019

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2019 Report Open Access OPEN
Stato dell'arte e criteri per la misurabilità delle performance richieste al manager dell'efficienza energetica
Miori V., Russo D., Ferrucci L. Pillitteri L.
In questo documento vengono introdotti e analizzati i criteri di misurabilità delle performance richieste a rEMpy, il manager dell'efficienza energetica. Nella prima parte del documento viene introdotta l'architettura del manager dell'energia, i suoi componenti e i requisiti funzionali; nella seconda parte, vengono definiti i parametri di performance che il manager deve soddisfare ed i metodi algoritmici e di gestione dei profili energetici, con analisi delle metodologie associate. Infine, nella terza parte, viene introdotto e descritto uno standard internazionale, LEED, atto a certificare l'efficienza raggiunta dal manager e quindi utilizzato come criterio per la misurabilità delle performance richieste.Source: ISTI Technical reports, 2019

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2019 Report Open Access OPEN
Caratterizzazione dei test funzionali per la valutazione delle performance dell'energy manager
Miori V., Russo D., Ferrucci L., Pillitteri L.
In questo documento verranno illustrate le attività e i risultati che hanno portato alla definizione dei test funzionali per la valutazione delle performance, sia a livello di simulazione al calcolatore sia a livello di dimostratore. In particolare, protocolli di test proposti verteranno sui determinati macro-criteri di valutazione che riportiamo di seguito: oInteroperabilità dei dispositivi coinvolti per l'energy management oPrestazioni funzionali ed integrazione dei diversi moduli dell'energy manager e degli algoritmi sviluppati oRisparmio energetico e livello di comfort globale per l'utente oUtilizzabilità e fruibilità del manager oRispetto delle certificazioni LEEDv4, da applicare all'edificio di cui fanno parte i dispositivi (sorgenti energetiche costituite dalle reti di fornitura di operatori nazionali di gas e energia elettrica eventuali fonti rinnovabili come pannelli solari o micro CHP, sistemi di storage e tutti i tipi di carichi) e l'energy manager Inoltre, per ogni criterio verranno identificati dei criteri più specifici e verranno stabiliti degli adeguati livelli di soddisfacimento, sulla base dei quali verranno indicati i test funzionali da eseguire secondo una determinata sequenza operativa.Source: ISTI Technical reports, 2019

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2019 Report Open Access OPEN
Analisi dello stato dell'arte e individuazione dei criteri per la misurabilità delle performance richieste al manager del comfort termoigrometrico
Miori V., Russo D., Ferrucci L., Pillitteri L.
Lo scopo del documento è l'individuazione dei criteri per misurare le performance del manager del comfort termoigrometrico. A tal fine viene passato in rassegna Io stato dell'arte dei parametri da valutare, i relativi indici di comfort termoigrometrico e la normativa di riferimento. Vengono altresì evidenziate e spiegate le principali grandezze da misurare. Infine vengono fatti alcuni cenni su alcuni strumenti per la misura di tali grandezze microclimatiche.Source: ISTI Technical reports, 2019

See at: ISTI Repository Open Access | CNR ExploRA