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About me

I work as a Principal Scientist at the TTTech Labs. Besides supporting our various business units with their projects and products, my current tasks include researching advanced scheduling methods for TTEthernet- and TSN-based distributed systems and real-time allocation and scheduling solutions for ADAS platforms. Most of my research work is currently centered around designing and evaluating new methods and algorithms to solve complex large-scale scheduling problems in multi-core multi-SoC platforms, spanning both the application and network domains.

I find my work within TTTech Labs extremely fascinating since most of the research is driven by the practical challenges faced in our customer projects and our product innovation goals. Hence, more often than not, we have the privilege of seeing the results of our research in real-life action relatively promptly. Moreover, while the focus is on applied research, our collaborations with academia and participation in funded projects give us the freedom to pursue more risky research topics as well.

 

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Dr. Silviu S. Craciunas

Principal Scientist @ TTTech Labs

E-mail: silviu.craciunas@tttech.com

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  1. A. Finzi, S.S. Craciunas, and M. Boyer - Integrating Sporadic Events in Time-triggered Systems via Affine Envelope Approximations. In Proc. 30th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), pp. 13-24, IEEE, 2024. (outstanding paper award) [pdf] 
  2. S. Walser, J. Ruh, and S.S. Craciunas - Real-time Container Orchestration Based on Time-utility Functions. In Proc. 20th IEEE International Conference on Factory Communication Systems (WFCS), IEEE, 2024. [pdf]
  3. V. Struhár, S.S. Craciunas, M. Ashjaei, M. Behnam, and A. Papadopoulos - Hierarchical Resource Orchestration Framework for Real-Time Containers. In ACM Transactions on Embedded Computer Systems (TECS), Volume 23, Issue 1, Article No.: 4, pp 1–24, 2024. [pdf]
  4. N. Reusch, M. Barzegaran, L. Zhao, S.S. Craciunas, and P. Pop - Configuration Optimization for Heterogeneous Time-Sensitive Networks. In Journal of Real-Time Systems, Volume 59, Issue 4, pp. 705–747, Springer, 2023. [link]
  5. C. Meroni, S.S. Craciunas, A. Finzi, and P. Pop - Mapping and Integration of Event- and Time-triggered Real-time Tasks on Partitioned Multi-core Systems. In Proc. 28th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2023. [pdf] 
  6. V. Struhár, M. Ashjaei, M. Behnam, A. Papadopoulos, and S.S. Craciunas - Resource Adaptation for Real-Time Containers Considering Quality of Control. In Proc. 28th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2023. [pdf] 
  7. P. Karachatzis, J. Ruh, and S.S. Craciunas - An Evaluation of Time-triggered Scheduling in the Linux Kernel. In Proc. 31st International Conference on Real-Time Networks and Systems (RTNS), ACM, 2023. [pdf] 
  8. M. Barzegaran, N. Reusch, L. Zhao, S.S. Craciunas, and P. Pop - Real-Time Traffic Guarantees in Heterogeneous Time-sensitive Networks. In Proc. 30th International Conference on Real-Time Networks and Systems (RTNS), ACM, 2022. (outstanding paper award) [link] [pdf]   
  9. A. Berisa, L. Zhao, S.S. Craciunas, M. Ashjaei, S. Mubeen, M. Daneshtalab, and M. Sjödin - AVB-aware Routing and Scheduling for Critical Traffic in Time-sensitive Networks with Preemption. In Proc. 30th International Conference on Real-Time Networks and Systems (RTNS), ACM, 2022. [link] [pdf]
  10. V. Struhár, S.S. Craciunas, M. Ashjaei, M. Behnam, and A. Papadopoulos - RT-SCALER: Adaptive Resource Allocation Framework for Real-Time Containers. In Proc. Real-time And intelliGent Edge computing workshop (RAGE), 2022. [pdf]
  11. N. Reusch, S.S. Craciunas, and P. Pop - Dependability-Aware Routing and Scheduling for Time-Sensitive Networking. In IET Cyber-Physical Systems: Theory & Applications, Wiley, 2022. [link] [pdf]
  12. S.D. McLean, E.A. Juul Hansen, P. Pop, and S.S. Craciunas - Configuring ADAS Platforms for Automotive Applications Using Metaheuristics. In Frontiers in Robotics and AI, Volume 8, 2022. [link] [pdf]
  13. V. Struhár, S.S. Craciunas, M. Ashjaei, M. Behnam, and A.V. Papadopoulos - REACT: Enabling Real-Time Container Orchestration. In Proc. 26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2021. [link] [pdf]
  14. S.S. Craciunas and R. Serna Oliver - Out-of-sync Schedule Robustness for Time-sensitive Networks. In Proc. 17th IEEE International Conference on Factory Communication Systems (WFCS), IEEE, 2021. [link] [pdf] [slides]
  15. S.D. McLean, S.S. Craciunas, E.A. Juul Hansen, and P. Pop - Mapping and Scheduling Automotive Applications on ADAS Platforms using Metaheuristics. In Proc. 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2020. (best paper award) [link] [pdf] [slides]
  16. N. Reusch, P. Pop, and S.S. Craciunas - Work-In-Progress: Safe and Secure Configuration Synthesis for TSN using Constraint Programming. In Proc. 41st IEEE Real-Time Systems Symposium (RTSS), Brief Presentations (BP) session, IEEE, 2020. [link] [pdf] [poster]
  17. N. Reusch, L. Zhao, S.S. Craciunas, and P. Pop - Window-Based Schedule Synthesis for Industrial IEEE 802.1Qbv TSN Networks. In Proc. 16th IEEE International Conference on Factory Communication Systems (WFCS), IEEE, 2020. [link] [pdf]
  18. A. Finzi and S.S. Craciunas - Breaking vs. Solving: Analysis and Routing of Real-time Networks with Cyclic Dependencies using Network Calculus. In Proc. 27th International Conference on Real-Time Networks and Systems (RTNS), ACM, 2019. [link] [pdf]
  19. V. Struhár, M. Ashjaei, M. Behnam, S.S. Craciunas, and A.V. Papadopoulos - DART: Dynamic Bandwidth Distribution Framework for Virtualized Software Defined Networks. In Proc. 45th Annual Conference of the IEEE Industrial Electronics Society (IECON), IEEE, 2019. [link] [pdf]
  20. A. Finzi and S.S. Craciunas - Integration of SMT-based Scheduling with RC Network Calculus Analysis in TTEthernet Networks. In Proc. 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2019. [link] [pdf]
  21. L. Zhao, P. Pop, and S.S. Craciunas - Worst-case Latency Analysis for IEEE 802.1Qbv Time Sensitive Networks using Network Calculus. In IEEE Access, Volume 6, pp. 41803-41815, 10.1109/ACCESS.2018.2858767, IEEE, 2018. [link] [pdf]
  22. R. Serna Oliver, S.S. Craciunas, and W. Steiner - IEEE 802.1Qbv Gate Control List Synthesis using Array Theory Encoding. In Proc. 24th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), pp. 13-24, IEEE, 2018. [link] [pdf]
  23. S.S. Craciunas, R. Serna Oliver, and W. Steiner - Demo Abstract: Slate XNS – An Online Management Tool for Deterministic TSN Networks. In Proc. 24th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), Demo Session, pp. 103-104, IEEE, 2018. [link] [pdf]
  24. W. Steiner, S.S. Craciunas, and R. Serna Oliver - Traffic Planning for Time-Sensitive Communication. In IEEE Communications Standards Magazine, Volume 2, Issue 3, pp. 42-47, IEEE, 2018. [link]
  25. P. Pop, M.L. Raagaard, S.S. Craciunas, and W. Steiner - Design Optimization of Cyber-Physical Distributed Systems using IEEE Time-sensitive Networks (TSN). In IET Cyber-Physical Systems: Theory & Applications, Volume 1, Issue 1, pp. 86-94, IET, 2016. [link] [pdf]
  26. S.S. Craciunas, R. Serna Oliver, M. Chmelik, and W. Steiner - Scheduling Real-Time Communication in IEEE 802.1Qbv Time Sensitive Networks. In Proc. 24th International Conference on Real-Time Networks and Systems (RTNS), pp. 183-192, ACM, 2016. [link] [pdf] [slides]
  27. R. Serna Oliver and S.S. Craciunas - Hierarchical Scheduling over Off- and On-chip Deterministic Networks. In ACM SIGBED Review, Volume 13, Number 4, Special Issue on 14th International Workshop on Real-Time Networks (RTN), ACM, 2016. [link] [pdf]
  28. S.S. Craciunas and R. Serna Oliver - Combined Task- and Network-level Scheduling for Distributed Time-triggered Networked Systems. In Journal of Real-Time Systems, Volume 52, Issue 2, pp. 161-200, Springer, 2016. [link] [pdf]
  29. S.S. Craciunas and R. Serna Oliver - SMT-based Task- and Network-level Static Schedule Generation for Time-triggered Networked Systems. In Proc. 22nd International Conference on Real-Time Networks and Systems (RTNS), pp. 45-54, ACM, 2014. (best paper award) [link] [pdf] [slides]
  30. R. Serna Oliver, S.S. Craciunas, and G. Stoeger - Analysis of Deterministic Ethernet Scheduling for the Industrial Internet of Things. In Proc. 19th International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks (CAMAD), IEEE, 2014. [link] [pdf]
  31. S.S. Craciunas, R. Serna Oliver, and V. Ecker - Optimal Static Scheduling of Real-time Tasks on Distributed Time-triggered Networked Systems. In Proc. 19th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2014. [link] [pdf]
  32. S.S. Craciunas, C.M. Kirsch, H. Payer, H. Roeck, and A. Sokolova - Temporal Isolation in Real-Time Systems: The VBS Approach. In International Journal on Software Tools for Technology Transfer (STTT), Volume 15, Issue 3, pp. 189-209, Springer, 2013. [link] [pdf]
  33. S.S. Craciunas and C.M. Kirsch - The Power of Isolation. In Proc. 10th IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (CSE/EUC), pp. 375-382, IEEE, 2012. [link] [pdf] [slides]
  34. S.S. Craciunas, C.M. Kirsch, and A. Sokolova - Response Time versus Utilization in Scheduler Overhead Accounting. In Proc. 16th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), pp. 291-300, IEEE, 2010. [link] [pdf] 
  35. S.S. Craciunas, A. Haas, C.M.Kirsch, H.Payer, H.Roeck, A.Rottmann, A.Sokolova, R.Trummer, J.Love, R.Sengupta - Information-Acquisition-as-a-Service for Cyber-Physical Cloud Computing. In Proc. Workshop on Hot Topics in Cloud Computing (HotCloud), USENIX, 2010. [link] [pdf]
  36. S.S. Craciunas, C.M. Kirsch, and A. Sokolova - Power-Aware Temporal Isolation with Variable-Bandwidth Servers. In Proc. International Conference on Embedded Software (EMSOFT), pp. 259-268, ACM, 2010. [link] [pdf] [slides] [poster]
  37. S.S. Craciunas, C.M. Kirsch, A. Sokolova - A Workload-oriented Programming Model for Temporal Isolation with VBS. In Online Proc. Workshop on Reconciling Performance with Predictability (RePP), 6pp, 2009. [pdf]
  38. S.S. Craciunas, C.M. Kirsch, H. Payer, H. Roeck, and A. Sokolova - Programmable Temporal Isolation through Variable-Bandwidth Servers. In Proc. IEEE Symposium on Industrial Embedded Systems (SIES), pp. 171-180, IEEE, 2009. [link] [pdf] [slides]
  39. S.S. Craciunas, C.M. Kirsch, H. Payer, H. Roeck, and A. Sokolova - Everyone Virtualizes Everything But Time. Poster at 15th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), 2009. [abstract] [poster]
  40. S.S. Craciunas, C.M. Kirsch, H. Payer, H. Roeck, and A. Sokolova - Programmable Temporal Isolation in Real-Time and Embedded Execution Environments. In Proc. Workshop on Isolation and Integration in Embedded Systems (IIES), pp. 19-24, ACM, 2009. [link] [pdf]
  41. S.S. Craciunas, C.M. Kirsch, H. Payer, A. Sokolova, H. Stadler, and R. Staudinger - A Compacting Real-Time Memory Management System. In Proc. USENIX Annual Technical Conference, pp. 349-362, USENIX, 2008. [link] [pdf]
  42. S.S. Craciunas, C.M. Kirsch, and H. Roeck - I/O Resource Management through System Call Scheduling. In ACM Operating Systems Review (OSR), Special Issue on Research and Developments in the Linux Kernel, Volume 42, Number 5, pp. 44-54, July, ACM, 2008. [link] [pdf]
  43. S.S. Craciunas, C.M. Kirsch, H. Roeck, and R. Trummer - The JAviator: A High-Payload Quadrotor UAV with High-Level Programming Capabilities. In Proc. AIAA Guidance, Navigation and Control Conference and Exhibit (GNC), AIAA, 2008. [link] [pdf]

  1. Ahmadian, H. (Ed.), Obermaisser, R. (Ed.), Perez, J. (Ed.). - Distributed Real-Time Architecture for Mixed-Criticality Systems. ISBN 9781351117814, CRC Press, 2018. Chapter 5, Section "Off-chip Network Scheduling", pp. 277 - 303. [link]

  1. R. Serna Oliver, P. Karachatzis, and S.S. Craciunas - Method to execute a mode-transition in a multi-mode computer system. Current status: US 2023089528 (A1) published 2023, EP 4148573 (A1) published 2023. [link]
  2. A. Finzi, S.S. Craciunas, and R. Serna Oliver - Method for Generating a Schedule for Mixed Critical Computer Networks. Current status: US 2021073689 (A1) granted 2022, EP 3790232 (A1) published 2021, CN 112468412 (A) granted 2024. [link]
  3. S.S. Craciunas and R. Serna Oliver - Method and Device to Configure Real-Time Networks. Current status: US 10958563 (B2) granted 2021, EP 3468118 (A1) published 2019, CN 109617705 (A) published 2019. [link]
  4. S.S. Craciunas and R. Serna Oliver - An Online Incremental Scheduling Method for Deterministic Networks. Current status: US 10205607 (B2) granted 2019, EP 3139547 (B1) granted 2018. [link]
  5. S.S. Craciunas and R. Serna Oliver - Method for Executing Tasks in a Computer Network. Current status: US 20160246646 (A1), abandoned 2017, EP 3055771 (A1) abandoned 2017. [link]

  1. S.S. Craciunas and S. Poledna - Time-triggered Approach for Software-defined Vehicles, In ATZelectronics worldwide, Volume 19, Issue 3-4, April 5, 2024. [link (en)] [link (de)]
  2. S. Poledna and S.S. Craciunas - Taming the Increasing Complexity of the Software-Defined Vehicle, Tech Paper, EETimes Europe, December 6, 2023. [link]
  3. A. Finzi, S.S. Craciunas, and M. Boyer - A Real-time Calculus Approach for Integrating Sporadic Events in Time-triggered Systems, CoRR, arXiv:2204.10264, Apr 2022. [pdf]
  4. L. Zhao, A. Berisa, S.S. Craciunas, M. Ashjaei, S. Mubeen, M. Daneshtalab, and M. Sjödin - AVB-aware Routing and Scheduling for Critical Traffic in Time-sensitive Networks with Preemption - Supplementary Material, Technical Report, Zenodo, 10.5281/zenodo.6190143, Feb 2022. [link] [pdf]
  5. M. Barzegaran, N. Reusch, L. Zhao, S. S. Craciunas, and P. Pop - Real-Time Guarantees for Critical Traffic in IEEE 802.1Qbv TSN Networks with Unscheduled and Unsynchronized End-Systems, Technical Report, CoRR, arXiv:2105.01641, May 2021. [link] [pdf] 
  6. S.S. Craciunas, R. Serna Oliver, and W. Steiner - Formal Scheduling Constraints for Time-Sensitive Networks, Technical Report, CoRR, arXiv:1712.02246, December 2017. [link] [pdf]
  7. S.S. Craciunas and R. Serna Oliver - An Overview of Scheduling Mechanisms for Time-sensitive Networks, Technical Report, Real-time summer school L’École d’Été Temps Réel (ETR), Paris, France, 2017. [pdf] [slides] 
  8. S.S. Craciunas, C.M. Kirsch, H. Payer, H. Roeck, and A. Sokolova - Concurrency and Scalability versus Fragmentation and Compaction with Compact-fit, University of Salzburg, Department of Computer Sciences, Technical Report 2009-02, CoRR, arXiv:1404.1830, 2014. [link] [pdf] 
  9. S.S. Craciunas, C.M. Kirsch, and A. Sokolova - The Power of Isolation, Technical Report, 2011-02, Department of Computer Sciences, University of Salzburg, Austria, July 2011. [pdf] 
  10. S.S. Craciunas, C.M. Kirsch, H. Roeck, and A. Sokolova - Real-Time Scheduling for Workload-oriented Programming, Technical Report, 2008-02, Department of Computer Sciences, University of Salzburg, Austria, September 2008. [pdf]
  11. S.S. Craciunas, C.M. Kirsch, and H. Roeck - Shaping Process Semantics, Technical Report, 2007-01, Dep. of Computer Sciences, University of Salzburg, Austria, April 2007. [pdf]

  1. Distributed REal-time Architecture for Mixed Criticality Systems (DREAMS), EU FP7 ICT, ICT-2013.3.4, October 1, 2013 – September 30, 2017. [link]

  • Outstanding paper award for the paper “Integrating Sporadic Events in Time-triggered Systems via Affine Envelope Approximations” at the 30th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), Hong Kong, China, 2024.
  • Outstanding paper award for the paper “Real-Time Traffic Guarantees in Heterogeneous Time-sensitive Networks” at the 30th International Conference on Real-Time Networks and Systems (RTNS), Paris, France, 2022.
  • Best paper award for the paper “Mapping and Scheduling Automotive Applications on ADAS Platforms using Metaheuristics” at the 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), Vienna, Austria, 2020.
  • Best paper award for the paper “SMT-based task- and network-level static schedule generation for time- triggered networked systems” at the 22nd International Conference on Real-Time Networks and Systems (RTNS), Versailles, France, 2016.


2024    Industrial session co-chair, 45th IEEE Real-Time Systems Symposium (RTSS 2024)

2024    Co-organizer, Workshop Time-Sensitive Networks from academia to industry: trends and challenges beyond the hype, Emerging Technologies and Factory Automation (ETFA 2024)

2024    Program committee member, 36th Euromicro Conference on Real-Time Systems (ECRTS 2024)

2024    Program committee member, 23rd International Federation for Information Processing (IFIP) Networking Conference (NETWORKING 2024)

2024    Program committee member, 30th IEEE International Conference on Embedded and Real-Time Computing Systems and Application (RTCSA 2024)

2024    Program committee member, 30th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2024)

2024    Industry co-chair, International Conference on Factory Communication Systems (WFCS 2024)

2023    Program committee member, 35th Euromicro Conference on Real-Time Systems (ECRTS 2023)

2023    Program committee member, 12th International Real-Time Scheduling Open Problems Seminar (RTSOPS 2023)

2023    Program committee member, 29th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2023)

2023    Program committee member, Brief Presentation (BP) session, 29th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2023)

2023    Program committee member, Advances in Security and Safety of Industrial Networked Infrastructures, International Conference on Factory Communication Systems (WFCS 2023)

2022    Judge, ACM SIGBED student research competition (ESWEEK SRC 2022)

2022    Program committee member, 28th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2022)

2022    Program committee member, Brief Presentation (BP) session, 28th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2022)

2021    Co-organizer, Special Session Fog Computing and IoT, International Conference on Emerging Technologies and Factory Automation (ETFA 2021)

2021    Program committee member, International Workshop on Time-Sensitive and Deterministic Networking (TENSOR 2021)

2020    Program committee member, Workshop on Fog Computing and the Internet of Things. (Fog-IoT 2020)

2019    Lecturer, IoT Hub Distinguished Lecturer Program (DLP), talk: Optimization challenge – The TSN scheduling problem

2019    Program committee member, 2nd Workshop on Benchmarking Cyber-Physical Systems and Internet of Things (CPS-IoTBench 2019)

2019    Program committee member, Workshop on Fog Computing and the Internet of Things. (Fog-IoT 2019)

2018    Program committee member, 16th ACM-IEEE International Conference on Formal Methods and Models for System Design (MEMOCODE 2018)

2018    Program committee member, 9th International Workshop on Analysis Tools and Methodologies for Embedded and Real-time Systems (WATERS 2018)

2018    Program committee member, 9th International Real-Time Scheduling Open Problems Seminar (RTSOPS 2018)

2018    Program committee member, Brief Presentation (BP) session, 24th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2018)

2017    Speaker, real-time summer school L’École d’Été Temps Réel 2017 (ETR 2017)

2017    Program committee member, 15th ACM-IEEE International Conference on Formal Methods and Models for System Design (MEMOCODE 2017)

2017    Program committee member, Work-in-Progress (WiP) session, 23th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2017)

2011    Web co-chair for the European Conference on Computer Systems (Eurosys 2011)

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