Program

OPERA will be held during the Hot Topics Day (HTD) of RTSS 2023. More info on venue and accomodation can be found here.

Accepted Papers and Schedule

08:30 – 10:00: Registration. You are welcome at the registration desk.
10:00 – 10:30: Coffee Break.
10:30 – 12:00: Welcome and Session 1. Session chair: Enrico Bini.
- “Welcome to OPERA 2023”, by Enrico Bini.
- Title: “Deadline-Aware and Fault-Tolerant Distributed Data Storage at the Edge”.
  Authors: Sathish Gopalakrishnan (The University of British Columbia).
  Speaker: Sathish Gopalakrishnan.
  Discussant: Jan Reineke.
- Title: “Subtask-Level Elasticity for Federated Scheduling of Parallel Tasks”.
  Authors: Marion Sudvarg (Washington University in St. Louis), Chris Gill (Washington University in St. Louis), Jeremy Buhler (Washington University in St. Louis).
  Speaker: Marion Sudvarg.
  Discussant: Tanya Amert.
- Title: “Fallen Leafs: Towards WCET and ACET Performance Surrogate Models for Decision Trees”.
  Authors: Christian Hakert (TU Dortmund), Nils Hölscher (TU Dortmund), Kuan-Hsun Chen (University of Twente), Jan Reineke (Saarland University), Jian-Jia Chen (TU Dortmund).
  Speaker: Christian Hakert.
  Discussant: Alessandro Druetto.
12:00 – 13:30: Lunch Break.
13:30 – 15:00: Session 2. Session chair: Björn Brandenburg.
- Title: “Feasibility analysis of real-time periodic multi-phase tasks on unrelated multiprocessor platforms”.
  [link to the presentation]
  Authors: Thomas Gaspard (LIAS, ISAE-ENSMA, Université de Poitiers), Antoine Bertout (LIAS, ISAE-ENSMA, Université de Poitiers), Joël Goossens (Université libre de Bruxelles), Emmanuel Grolleau (LIAS, ISAE-ENSMA, Université de Poitiers), Pascal Richard (LIAS, ISAE-ENSMA, Université de Poitiers).
  Speaker: Thomas Gaspard.
  Discussant: Marion Sudvarg.
- Title: “Modeling Techniques for Fixed Priority Scheduling”.
  [link to the presentation]
  Authors: Alessandro Druetto (University of Turin), Andrea Cesare Grosso (University of Turin).
  Speaker: Alessandro Druetto.
  Discussant: Sathish Gopalakrishnan.
- Title: “Priority Point Exploration in EDF-Like Scheduling for Self-Suspending Tasks”.
  [link to the presentation]
  Authors: Mario Günzel (TU Dortmund), Kuan-Hsun Chen (University of Twente), Jian-Jia Chen (TU Dortmund), Ching-Chi Lin (TU Dortmund).
  Speaker: Mario Günzel.
  Discussant: Thomas Gaspard.
- Title: “Real-Time Systems Optimization with Black-box Constraints and Hybrid Variables”.
  [link to the presentation]
  Authors: Sen Wang (Virginia Tech), Dong Li (Virginia Tech), Shao-Yu Huang (Purdue University), Xuanliang Deng (Virginia Tech), Ashrarul Haq Sifat (Virginia Tech), Changhee Jung (Purdue University), Ryan Williams (Virginia Tech), Haibo Zeng (Virginia Tech).
  Speaker: Sen Wang.
  Discussant: Mario Günzel.
15:00 – 15:30: Coffee Break.
15:30 – 16:30: Keynote Talk. Session chair: Enrico Bini.
- Title:“Why is optimization challenging for real-time scheduling?”.
  Speaker: Pontus Ekberg.
  [link to the presentation]
16:30 – 16:45: Closing Remarks.

Session	Title	Authors	Speaker	Discussant
1	Deadline-Aware and Fault-Tolerant Distributed Data Storage at the Edge	Sathish Gopalakrishnan (The University of British Columbia)	Sathish Gopalakrishnan	Jan Reineke
1	Subtask-Level Elasticity for Federated Scheduling of Parallel Tasks	Marion Sudvarg (Washington University in St. Louis), Chris Gill (Washington University in St. Louis), Jeremy Buhler (Washington University in St. Louis)	Marion Sudvarg	Tanya Amert
1	Fallen Leafs: Towards WCET and ACET Performance Surrogate Models for Decision Trees	Christian Hakert (TU Dortmund), Nils Hölscher (TU Dortmund), Kuan-Hsun Chen (University of Twente), Jan Reineke (Saarland University), Jian-Jia Chen (TU Dortmund)	Christian Hakert	Alessandro Druetto
2	Feasibility analysis of real-time periodic multi-phase tasks on unrelated multiprocessor platforms	Thomas Gaspard (LIAS, ISAE-ENSMA, Université de Poitiers), Antoine Bertout (LIAS, ISAE-ENSMA, Université de Poitiers), Joël Goossens (Université libre de Bruxelles), Emmanuel Grolleau (LIAS, ISAE-ENSMA, Université de Poitiers), Pascal Richard (LIAS, ISAE-ENSMA, Université de Poitiers)	Thomas Gaspard	Marion Sudvarg
2	Modeling Techniques for Fixed Priority Scheduling	Alessandro Druetto (University of Turin), Andrea Cesare Grosso (University of Turin)	Alessandro Druetto	Sathish Gopalakrishnan
2	Priority Point Exploration in EDF-Like Scheduling for Self-Suspending Tasks	Mario Günzel (TU Dortmund), Kuan-Hsun Chen (University of Twente), Jian-Jia Chen (TU Dortmund), Ching-Chi Lin (TU Dortmund)	Mario Günzel	Thomas Gaspard
2	Real-Time Systems Optimization with Black-box Constraints and Hybrid Variables	Sen Wang (Virginia Tech), Dong Li (Virginia Tech), Shao-Yu Huang (Purdue University), Xuanliang Deng (Virginia Tech), Ashrarul Haq Sifat (Virginia Tech), Changhee Jung (Purdue University), Ryan Williams (Virginia Tech), Haibo Zeng (Virginia Tech)	Sen Wang	Mario Günzel

Event Format

OPERA aims at collecting relevant past results or preliminary ideas on the topics of interest, creating a constructive environment for discussion, scientific advancement, and sharing ideas. To achieve such a goal the program is divided in presentations by contributors (of around 15-20 minutes), and open discussion within the audience. To stimulate the discussion, each accepted presentation is assigned a discussant.

The discussant:

has normally worked in the area of the presented work or has interest in doing so;
has read the accepted paper and possibly the necessary related works;
is expected to stimulate the discussion after the presentation;
is appointed by the workshop organizer and may be a TPC member.

At the conclusion of the workshop a kahoot quiz will be organized among the participants.