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Grenoble Workshop on Autonomic Computing and Control

Adaptive and reconfigurable computing systems are becoming widespread, in different areas such as Cloud computing, High-Performance Computing, or Smart Environments in the Internet of Things. Their particularity is to be able to change their computing structure dynamically, in response to changes in their environment or execution platform. Motivations for the adaptivity are found in resource management, energy efficiency, or functionality. Autonomic Computing in an approach to automate the management of adaptation with feedback loops, with a better handling of complexity and responsiveness. The design of the reconfiguration controllers requires methods, models and tools, in order to have safe and predictable behaviors of the automated systems, for which Control Theory provides an effective background.

This series of workshops provides opportunities for specialists of different aspects of the problem to meet and exchange approaches and experience, with presentations from different points of view on the topic, from software infrastructures to Control Theory.
This workshop follows three previous editions on october 7, 2015, may 27, 2014 and november 4, 2014, with copies of the slides, here https://persyval-lab.org/en/exploratory-project/staars



  • 4th Grenoble Workshop on Autonomic Computing and Control

    date: tuesday 17 and monday 23 october 2017

    place : in Grenoble, on the campus (see below)

    supported by the HPES (High-Performance Embedded Systems) https://persyval-lab.org/en/sites/hpes équipe action of the LabEx PERSYVAL-Lab https://persyval-lab.org/

    Register here! (*free* but required) :

    https://doodle.com/poll/55kgvfysrdz2nu97

    Program :

    • First day (see below for the second day, 23 oct. 2017)

      Tuesday 17 october 2017

      Gipsa-lab, salle Mont-Blanc

      http://www.gipsa-lab.grenoble-inp.fr/plan-d-acces.php

      • 11h00 –
        introduction
        slides

        Bogdan Robu & Eric Rutten

      • 11h30 –
        Lydia Chen (IBM, Zurich, Suisse)

        Fast and Accurate Big Data Discovery by Approximation

        Fast values discovery embedded in big data emerges as the central operation for today’s information technology. Examples includes anomaly detection in large scale distributed systems, such as data center, mobile network, and power grid. Even with the powerful data processing engines, e.g., Spark and Storm, it is still no mean feat to ensure strong latency guarantee for real time big data discovery, yet in a resource efficient manner. To solve such a conundrum, approximate big data computing advocates to explicitly tradeoffs the analysis accuracy by reducing or altering data input via techniques like subsampling or lowering data precisions. In this talk, I will first introduce AccStream, a latency-aware approximate framework based on Spark Streaming. AccStream dynamically learns the latency model of analysis jobs via on-line probing technique and employs sampling theory to fulfill given accuracy targets. AccStream features on the design of hybrid windowing that trades off data freshness via a combination of tumbling and rolling windows, when encountering conflicts of latency and accuracy targets. In the second part of talk, I will present DApprox, a Differential Approximate framework that expands beyond AccStream and supports multi-priority workloads by using differentiated approximation ratios. Different from typical priority scheduling that evicts low-priority jobs, DApprox deflates their workload, abiding by the minimum accuracy requirement, thereby making resources available for high-priority jobs. I will preset both theoretical results and empirical validations on real systems.

      • 12h30 –
        lunch break

      • 14h00 –
        Romain Rouvoy (Cristal, Inria Spirals, Lille)

        Feedbacks Control Loops as 1st Class Entities

        slides

        This talk shortly reports on the results of the SALTY R&D project (https://salty.unice.fr) funded by the French funding agency (ANR). The key outcome of this project is a software framework that covers both design-time and runtime support for integrating self-adaptive behaviours into potentially complex legacy systems. SALTY therefore provides a reflective domain-specific model to externalise and make explicit the control layer of legacy systems. While the adoption of a domain-specific model leverages the mapping on different middleware stacks (FraSCAti or Akka in our case studies), it also acts as a pivot, within a modular toolchain, to implement design-time verifications and to inject runtime guards. Future case studies of this approach will cover green computing, crowd- sensing, and big data systems.

      • 15h00 –
        Sophie Cerf (UGA, Gipsa-lab)

        PULP: Achieving Privacy and Utility in Mobility Databases.

        slides

        The widespread use of mobile devices and location-based services has generated massive amounts of mobility databases. While processing these data is highly valuable (improvement of public transportation facilities, collaborative mapping, etc.), privacy issues can occur if personal information are released (frequently visited places, social relationships, etc.). Dedicated literature has investigated ways to protect mobility data by providing a large range of Location Privacy Protection Mechanisms. However, the privacy level of the protected data significantly varies depending on the protection mechanism used, its configuration and on the characteristics of the mobility data. Meanwhile, the protected data still needs to enable some useful post-processing. In order to tackle these issues, we present PULP, a framework that finds the suitable protection mechanism and configure it for each mobility database user in order to achieve user-defined objectives in terms of both privacy and utility.

      • 16h00 –
        Soguy Gueye (Inria Ctrl-A, Grenoble)

        Autonomic Management of Missions and Reconfigurations in FPGA-based Embedded System

        slides

        Implementing self-adaptive embedded systems, such as UV, involves an offline provisioning of the several implementations of the embedded functionalities with different characteristics in resource usage and performance in order for the system to dynamically adapt itself under uncertainties. FPGA-based architectures offer for support for high flexibility with dynamic reconfiguration features. We propose an autonomic control architecture for self-adaptive and self-reconfigurable FPGA-based embedded systems. The control architecture is structured in three layers: a mission manager, a reconfiguration manager and a scheduling manager. In this paper we focus on the design of the reconfiguration manager. We propose a design approach using automata-based discrete control. It involves reactive programming that provides formal semantics, and discrete controller synthesis from declarative objectives.

      • 17h00 –
        discussion
        all



    • Second day

      Monday 23 october 2017

      Imag, salle de séminaires 2

      https://batiment.imag.fr/en/contact-addresses-access

    • 11h00 –
      welcome and introduction

      Bogdan Robu & Eric Rutten

    • 11h30 –
      Thomas Ledoux (IMT Atlantique, Inria Ascola, Nantes)

      CoMe4ACloud: An End-to-end Framework for Autonomic Cloud Systems

      Autonomic Computing has recently contributed to the development of self-manageable Cloud services. It provides means to free Cloud administrators of the burden of manually managing varying-demand services while enforcing Service-Level Agreements (SLAs). All Cloud artifacts, regardless of the layer carrying them, share many common characteristics (e.g., resources, service-based model with consumers/providers). Thus, it should be possible to specify, (re)configure and monitor any XaaS (Anything-as-a-Service) layer in an homogeneous way.
      To this end, the CoMe4ACloud approach proposes a generic model-based architecture for autonomic management of Cloud systems. We derive an unique and generic Autonomic Manager (AM) capable of managing any Cloud service, regardless of the layer. The generic AM is based on a generic constraint solver which tries to find the optimal configuration for the modeled XaaS and the best balance between costs and revenues while meeting constraints regarding the established SLA.

    • 12h30 –
      lunch break

    • 14h00 –
      Sabbir Hasan (Orange labs, Meylan)

      GPaaScaler: Green Energy Aware Platform Scaler for Interactive Cloud Application

      Recently, smart usage of renewable energy has been a hot topic in the Cloud community. Traditionally, data centers host heterogeneous applications, such as interactive and batch applications/jobs. Batch jobs arrives with deadline, hence can scheduled depending on the energy profile. On the contrary, interactive applications possess lesser flexibility, i.e., it should react with little to no latency, otherwise Quality of Service (QoS) can be seriously impacted. To cope up with these limitations, we have proposed a green energy adaptive solution to create green energy awareness inside the application that inherits the capability to smartly use the available green energy having static amount of underlying resources. This work adds to previous ones as it considers elastic underlying infrastructure, that is, we propose a PaaS solution which efficiently utilize the elasticity nature at both infrastructure and application levels, by leveraging adaptation in facing to changing condition i.e., workload burst, performance degradation, quality of energy, etc. While applications are adapted by dynamically re-configuring their service level based on performance and/or green energy availability, the infrastructure takes care of addition/removal of resources based on application’s resource demand. Both adaptive behaviors are implemented in separated modules and are coordinated in a sequential manner. We validate our approach by extensive experiments and results obtained over Grid’5000 test bed. Results show that, application can reduce significant amount of brown energy consumption by 35% and daily instance hour cost by 37% compared to a baseline approach when green energy aware adaptation is considered.

    • 15h00 –
      Issam Raïs (LIP/ENS, Inria Avalon, Lyon)

      Shutdown policies with power capping for large scale computing systems

      Large scale distributed systems are expected to consume huge
      amounts of energy. To solve this issue, shutdown policies constitute an
      appealing approach able to dynamically adapt the resource set to the
      actual workload. However, multiple constraints have to be taken into
      account for such policies to be applied on real infrastructures, in partic-
      ular the time and energy cost of shutting down and waking up nodes,
      and power capping to avoid disruption of the system. In this talk, I’ll present
      models translating these various constraints into different shut-
      down policies that can be combined. Our models are validated through
      simulations on real workload traces and power measurements on real
      testbeds.

    • 16h00 –
      Adja Ndeye Sylla (CEA LIALP, Grenoble)

      Design Framework for Reliable Multiple Autonomic Loops in Smart Environments

      Today’s control systems such as smart environments have the ability to adapt to their environment in order to achieve a set of objectives (e.g., comfort, security and energy savings). This is done by changing their behaviour upon the occurrence of specific events. Building such a system requires to design and implement autonomic loops that collect events and measurements, make decisions and execute the corresponding actions. The design and the implementation of such loops are made difficult by several factors: the complexity of systems with multiple objectives, the risk of conflicting decisions between multiple loops, the inconsistencies that can result from communication errors and hardware failures and the heterogeneity of the devices. In this paper, we propose a design framework for reliable and self-adaptive systems, where multiple autonomic loops can be composed into complex managers, and we consider its application to smart environments. We build upon the proposed framework a generic autonomic loop which combines an automata-based controller that makes correct and coherent decisions, a transactional execution mechanism that avoids inconsistencies, and an abstraction layer that hides the heterogeneity of the devices. We propose patterns for composition of such loops, in parallel, coordinated, and hierarchically, with benefits from the leveraging of automata-based modular constructs, that provides for guarantees on the correct behaviour of the controlled system. We implement our framework with the transactional middleware LINC, the reactive language Heptagon/BZR and the abstraction framework PUTUTU. A case study in the field of building automation is presented to illustrate the proposed framework.

    • 17h00 –
      discussion
      all

organisation :
Bogdan Robu, Gipsa-lab
Eric Rutten, INRIA /Lig



  • 3rd Grenoble Workshop on Autonomic Computing and Control

    date: wednesday 7 october 2015

    place : in Grenoble, on the campus, GIPSA-lab, Seminary room
    (2nd floor B208 – Grenoble campus : http://www.gipsa-lab.grenoble-inp.fr/plan-d-acces.php)

    Register here! : http://www.gipsa-lab.grenoble-inp.fr/projet2/staars/

    Free attendance but necessary inscription BEFORE 1 OCT 2015 for lunch

    supported by the HPES (High-Performance Embedded Systems) https://persyval-lab.org/en/sites/hpeséquipe action of the LabEx PERSYVAL-Lab https://persyval-lab.org/

    on the day right after the Journées de l’Automatique GdR MACS 2015 organised in Grenoble

    Preliminary program : from 9.30 to 17.30 :

    • 9.45 –
      Olesia Mokrenko (CEA LETI) : “Energy management of a Wireless Sensor Network at application level”

      slides

    • 10.30 –
      Paolo Romano (INESC, Portugal) : “Self-tuning Transactional Memory via Machine Learning and Analytical Modeling”

      slides

    • 11.15 – Break
    • 11.30 –
      Jacques Malenfant (LIP6, Paris) : “A Token-Based Scheme for Coordinating Controllers in Large-Scale Autonomic Systems”
    • 12.15 –
      Bogdan Robu (UJF Gipsa-lab) : “A control approach for guaranteeing performance and dependability in Big Data Cloud Systems”
    • 13.00 – Lunch
    • 14.00 –
      Martina Maggio (Lund University, Sweden) : “Discrete Time Adaptive Linear Control for Cloud Applications”

      slides

    • 14.45 –
      Christian Perez (LIP/Inria, Lyon) : “On Software Component Model Adaptation and Reconfiguration in High Performance Computing”
    • 15.30 – Break
    • 16.00 –
      Naweiluo Zhou (UJF LIG/Inria) : ” Autonomic Parallelism Adaptation on Software Transactional Memory”

      slides

    organisation :

    Eric Rutten, INRIA
    Stéphane Mocanu, Gipsa-lab



  • 2nd Grenoble Workshop on Autonomic Computing and Control

    date: tuesday 04 november 2014

    place : in Grenoble, on the campus, at Gipsa-lab

    supported by the STAARS (Supervisory Techniques for Autonomic, Adaptive and Reconfigurable Systems) projet exploratoire (march 2013 – sept. 2014) of the LabEx Persyval-lab

    public: anyone interested in the control of computing systems from the control theory community and informatics,

    Free attendance but compulsory inscription here : http://www.gipsa-lab.grenoble-inp.fr/projet2/staars/

    program:

    • Danny Weyns (Linnaeus University, Sweden) : “Self-Adaptation: MAPE-K and Control Theory” – slides
    • Antonio Filieri (Stuttgart U., Germany) : “Automated Control for Self-Adaptive Software Design”
    • Daniel Simon (LIRMM, Montpellier) : “Mating control and computing”
    • Ludovic Henrio (I3S/Inria, Sophia-Antipolis) : “Programming and Verifying Distributed and Adaptable Autonomous Components with GCM/ProActive”
    • Maxime Louvel & François Pacull (CEA LETI) : “Resource based coordination middleware, in the context of autonomic computing”
    • Fabienne Boyer & Olivier Gruber (LIG Grenoble) : “Robust Reconfiguration Protocol for Component Assemblies”
    • Frederico Alvares & Eric Rutten (INRIA Grenoble) & Lionel Seinturier (LIFL / INRIA Lille) : “High-level language support for the control of reconfigurations in component-based architectures”

    organisation :

    Eric Rutten, INRIA
    Stéphane Mocanu, Gipsa-lab
    Bogdan Robu, Gipsa-lab



  • 1st Grenoble Workshop on Autonomic Computing and Control

    date: tuesday 27 may 2014

    place : in Grenoble, on the campus, MJK (Maison Jean Kuntzmann)

    supported by the STAARS (Supervisory Techniques for Autonomic, Adaptive and Reconfigurable Systems)
    projet exploratoire (march 2013 – sept. 2014) of the LabEx Persyval-lab

    public: anyone interested in the topic, from the Labex Persyval-lab, and from Grenoble, and beyond

    program:

    confirmed speakers :

    • Karl-Erik Arzen (Lund, Sweden)
      “Service-Level Awareness in Cloud Applications”
    • Alberto Leva (Milano, Italy)
      “Feedback control loops as a means to improve/achieve adaptiveness”
    • Ada Diaconescu ( Telecom Paris-Tech, France)
      “Towards a Generic Architecture for Open, Scalable and Multi-Objective Autonomic Systems”
    • Filip Křikava (Inria Lille)
      “Integrating Adaptation Mechanisms Using Control Theory Centric Architecture Models”

    • Suzanne Lesecq (CEA LETI) (& D. Puschini & E. Beigné)
      “Application of control theory to ManyProcessor System-on-Chip (MPSoC)”

    • Bogdan Robu (GIPSA) (& Mihaly Berekmeri & Damián Serrano & Sara Bouchenak & Nicolas Marchand)
      “A Control Approach for Performance of Big Data Systems”
    • Eric Rutten (& Soguy Gueye & Noël de Palma & Gwenaël Delaval)
      “Modular coordination of multiple autonomic managers”

    organisation :
    Eric Rutten, INRIA
    Stéphane Mocanu, Gipsa-lab

  • 1 comment

    2 pings

    1. Excellent opportunity for exchanging scientific ideas in details.

      Thanks for the organization team and all the representers.

    1. […] organize the Grenoble Workshop on Autonomic Computing and Control, 27 may 2014, […]

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