07/07/2020
The Human Resources Strategy for Researchers
Marie Skłodowska-Curie Actions

PhD Student Position in the H2020 MCSA ITN “APROPOS” (ERS 6) - Topic: Design Space Exploration for Accuracy-aware Computing

This job offer has expired


  • ORGANISATION/COMPANY
    Ecole Centrale de Lyon
  • RESEARCH FIELD
    Computer science
    Engineering
    Technology
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    28/02/2021 17:00 - Europe/Brussels
  • LOCATION
    France › Ecully
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    01/05/2021
  • EU RESEARCH FRAMEWORK PROGRAMME
    H2020 / Marie Skłodowska-Curie Actions
  • MARIE CURIE GRANT AGREEMENT NUMBER
    956090

OFFER DESCRIPTION

 APROPOS will train 15 Early Stage  researchers to tackle the challenges of future embedded and high-performance computing by using disruptive methodologies. Following the current trend, by 2040 computers will need more electricity than the world energy resources can generate. On the communications side, energy consumption in mobile broadband networks is comparable to datacentres. To make things worse, Internet-of-Things will soon connect 20 to 50 billion devices through wireless networks to the cloud. 

APROPOS aims at decreasing energy consumption in both distributed computing and communications for cloud-based cyber-physical systems. We propose adaptive Approximate Computing to optimize energy-accuracy trade-offs. Luckily, in many parts of the global data acquisition, transfer, computation, and storage systems there exists the possibility to trade off accuracy to either less power or less time consumed – or both. As examples, numerous sensors are measuring noisy or inexact inputs; the algorithms processing the acquired signals can be stochastic; the applications using the data may be satisfied with an “acceptable” accuracy instead of exact and absolutely correct results; the system may be resilient against occasional errors; and a coarse classification or finding the most probable matches may be enough for a data mining system. By introducing a new dimension, accuracy, to the design optimization, the energy efficiency can even be improved by a factor of 10x-50x.  

APROPOS will train the spearheads of the future generation to cope with the technologies, methodologies, and tools for successfully applying Approximate Computing to power and energy saving. The training, in this first ever ITN addressing approximate computing, is to a large extent done by researching energy-accuracy trade-offs on circuit, architecture, software, and system-level solutions, bringing together world leading experts from European organizations. In addition, we will provide network-wide and local trainings on the substance and on the complementary skills needed in both industrial and academic work life.

ESR Host Unit: Ecole Centrale de Lyon – Institute of Nanotechnology of Lyon  (ECL-INL), France

ESR 6 Description:

Existing Approximate Computing techniques can be applied either at component (e.g., functional approximation) or application level (e.g., loop perforation, precision reduction). When a component is approximate, the impact of the approximation, i.e., accuracy loss, is only considered at local level and it is not trivial how to determine its effect at application-level. On the other hand, the approximation implemented at application-level does not consider the knowledge about the HW architecture. This may lead to sub- optimal solutions. 

The goal of this PhD thesis is to design and implement a design space exploration framework able to automatically explore the impact of different approximate operators on a given application described in C/C++ and to select the best one accordingly to the required level of accuracy and the available HW architecture. The work is divided in three main tasks: 

1) AxC operators modelling. 

This task has to model the Approximate Operators (existing ones from the literature and/or developing new ones). The operators models will compose a library. A source-to-source compiler will be implemented in order to generate a mutated version of the source code by adding the available approximate operators. 

2) Search Engine.

This task aims at identifying the “best” configuration of the approximate operators added in the mutated source code (e.g., for the loop perforation it has to identify the maximum number of skipped iterations). Clearly the search space will be very huge, thus it will be not possible to use an exact algorithm to identify the best solution. We thus propose to use heuristics, and we forecast to investigate the use of evolutionary algorithms. 

3) Workload Independency.

Each time that a configuration for an AxC operator is identified, the impact on the application precision has to be checked (i.e., avoid to degrade too much the application precision). The problem is which workload should be used for the evaluation. The critical point will be how to identify a meaningful workload (i.e., that correctly mimic the real workloads) and how to characterize it.

ESR 6 Objectives:

  • Define and Implement a Design Space Exploration (DES) framework for accuracy-aware computing 
  • Support the benchmarking activities

ESR Expected Results:   

Proof-of-concept implementation of DSE framework, completion of the PhD at the hosting unit withing 36 months.

Planned secondment(s):

CERICT, supervisor Prof. Antonino Mazzeo, M24, 6 months to work on the optimizer for the DSE with the industrial partner, and for  industrial practice.

Supervisory team: 

  • Prof. Alberto Bosio (ECL-INL), main supervisor
  • Prof. Ian O’Connor (ECL-INL), academic co- supervisor
  • Prof. Stefano Di Carlo (POLITO), academic co- supervisor
  • Prof. Antonino Mazzeo (CERICT), industrial co- supervisor

Enrolment in Doctoral degree: Ecole Centrale de Lyon, France

Target degree: PhD in Doctoral Programme of Electronics, Electrical Engineering, Automatics and Signal Processing  (DP EEEA)

Degree details: https://edeea.universite-lyon.fr/ed-160-eea/version-anglaise/

 

More Information

Benefits

About 3170 EUR/month for researchers without family, the gross amount includes living and mobility allowances. For reseachers with family responsibilities, the salary would be approximately 3500 EUR/month.

Note: for different positions within the same APROPOS network, the salary is country- and unit-dependent.

Eligibility criteria

Eligibility criteria: please check carefully that you are eligible; all conditions below are compulsory

Transnational mobility: The researcher must not have resided or carried out their main activity (work, studies, etc.) in the country of the host organization for more than 12 months in the 3 years immediately prior to the start date. Note: the mobility rule applies to the (main) beneficiary where the researcher is recruited, and not to partners to which the researcher is sent or seconded. It is also only determined at one point in time: at the time when the ESR starts working for APROPOS.

Early-Stage Researchers (ESRs)/fresh MSc graduates: All researchers recruited in APROPOS must have less than 4 years since the completion of their first MSc degree and have not been awarded any doctoral degree at the date of the employment.

Background requirements: The applicant must be in possession of Master of Science (MSc) diploma in a relevant field, such as: electrical engineering, communications engineering, computer engineering, software engineering/computer science, signal processing, radio communications, mathematics, physics, aerospace engineering, mechanical engineering, biomedical engineering, etc.

English language requirements: The candidate must be in possession of an English certificate with good level according to the regulations of the university to which the student will be enrolled for the PhD degree – check the degree requirements of the corresponding doctoral program for details.

Selection process

Please submit your application through our online recruitment system. The closing date for applications is 31 January 2021 (23:59 EET / UTC+2). Please write your application and all the accompanying documentation in English and attach them in PDF format.

Required attachments (preferably to be provided there as original versions or certified copies as described below. In case the applicant is invited for the interview – the certified copies should be provided before it takes place) 

Replace XX in file names with the position you apply and update your Name and Surname for, e.g., ESR01_ Sauli_Niinisto_Dissertation_Proposal.pdf

  1. Short ESR position-specific dissertation proposal of up to 2 pages, extratext will not be considered (original). FILE NAMED:ESRXX_Name_Surname_Dissertation_Proposal.pdf
  2. A European format CV (see template: https://europa.eu/europass/en/create-europass-cv), including social and multi-cultural competencies (original). FILE NAMED: ESRXX_Name_Surname_CV.pdf
  3. Bachelor diploma and transcript (original and certified copy in English). FILE NAMED: ESRXX_Name_Surname_BSc.pdf
  4. First Master diploma and transcript (original and certified copy in English). FILE NAMED: ESRXX_Name_Surname_MSc.pdf
  5. Certificateof English language proficiency (may be optional depending on the ESRposition – in case it is not required, a statement that it is notnecessary for the position in free form). FILE NAMED:ESRXX_Name_Surname_English.pdf
  6. Optional Publications (where applicable, regular copies). FILE NAMED: ESRXX_Name_Surname_Publications.pdf
  7. First reference letter as PDF with contact information of the referee. FILE NAMED:  ESRXX_Name_Surname_Reference_Letter.pdf
  8. Optionalsecond reference letter as PDF with contact information of the referee. FILE NAMED: ESRXX_Name_Surname_Second_Reference_Letter.pdf
  9. Statement (use template available at: https://projects.tuni.fi/uploads/2020/12/46c1ef2a-residence_5years_statement.docx) and certificates/documents demonstrating your residence(s) in the last 3 years. FILE NAMED: ESRXX_Name_Surname_Statement.pdf

For more information contact (check the ESR position description before): APROPOS Info info.apropos@tuni.fi

Additional comments

Working and living conditions in the country:

By choosing to work in France, you will have the chance to discover a society that is multicultural and open, proud of its history and looking forward to the future. http://ee.france.fr, https://www.lyoncampus.com/en/welcome/5-good-reasons-to-study-in-lyon

Unit details:

The Lyon Institute of Nanotechnology (Institut des Nanotechnologies de Lyon, INL) is a Joint Research Unit (Unité Mixte de Recherche, UMR 5270) involving the CNRS, ECL, INSA, Université Lyon 1 and CPE Lyon. The goal of INL is to encourage world-leading multidisciplinary research in the areas of micro and nanotechnologies and their applications. The pioneering research undertaken at the Institute ranges from materials and technology to devices and systems, thus enabling the emergence of dedicated technologies. The Institute is supported in its work by the Nanolyon Technology Platform. The application areas cover major economic sectors: semiconductor industry, information technologies, healthcare and wellbeing, energy and the environment. The laboratory is located on two leading research campuses at Lyon Ouest-Ecully and LyonTech-La Doua. It has personnel of 200 people including 121 permanent staff. INL is one of the key laboratories of the “Université de Lyon” research and higher education centre. https://www.ec-lyon.fr/en, https://inl.cnrs.fr

Seconding Unit description:

The Centro Regionale Information Communication Technology scrl (CeRICT) is a consortium of ten universities and public research centres in the Campania Region, Italy, set up as an outcome of the CRdC ICT project in 2002 by the Campania Region. The CeRICT main mission is to increase the economical and social value of affiliated research institutions matching the medium/long-term research needs of Industry and Public Administrations. CeRICT also provides a lightweight administrative infrastructure simplifying the management of complex research projects, including European projects. More than 200 professors, researchers, and technicians form the virtual staff of CeRICT through its affiliated organizations. www.cerict.it

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Computer science: Master Degree or equivalent
    Engineering: Master Degree or equivalent
  • REQUIRED LANGUAGES
    ENGLISH: Good

Skills/Qualifications

Eligibility criteria: please check carefully that you are eligible; all conditions below are compulsory

Transnational mobility:

The researcher must not have resided or carried out their main activity (work, studies, etc.) in the country of the host organization for more than 12 months in the 3 years immediately prior to the start date. Note: the mobility rule applies to the (main) beneficiary where the researcher is recruited, and not to partners to which the researcher is sent or seconded. It is also only determined at one point in time: at the time when the ESR starts working for APROPOS.

Early-Stage Researchers (ESRs)/fresh MSc graduates:

All researchers recruited in APROPOS must have less than 4 years since the completion of their first MSc degree and have not been awarded any doctoral degree at the date of the employment.

Background requirements:

The applicant must be in possession of Master of Science (MSc) diploma  in a relevant field, such as: electrical engineering, communications engineering, computer engineering, software engineering/computer science, signal processing, radio communications, mathematics, physics, aerospace engineering, mechanical engineering, biomedical engineering, etc.

English language requirements:

The candidate must be in possession of an English certificate with good level according to the regulations of the university to which the student will be enrolled for the PhD degree – check the degree requirements of the corresponding doctoral program for details.

 

Work location(s)
1 position(s) available at
Ecole Centrale de Lyon
France
France
Ecully
69130
36, av Guy de Collongue

EURAXESS offer ID: 539729

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