C1: Invasive Run-Time Support System (iRTSS)
Principal Investigators:
Prof. Schröder-Preikschat, Dr. Lohmann, Prof. Henkel, Dr. Bauer
Scientific Researchers:
Sebastian Kobbe, Benjamin Oechslein, Jens Schedel, Christoph Erhardt, Gabor Drescher
Abstract
Subproject C1 investigates operating system support for invasive applications. We provide methods, principles, and abstractions for the application-aware extension, configuration, and adaptation of the invasive platform by a novel and flexible operating system infrastructure that will be integrated into standard Unix-like operating systems. We investigate (1) new design and implementation approaches for parallelism-aware operating systems, (2) novel AOP-based methods for their static and dynamic (re-)configuration, and (3) agent-based strategies for the highly scalable management of their resources.
Synopsis
Subproject C1 investigates basic system-software support for application-aware static/dynamic configuration and on-demand adaptation of the invasive computing platform - bridging the gap from invasive hardware (project area B) to invasive applications (project area D). Scientific objective is a flexible run-time system coping with massively parallel, heterogeneous, and dynamic workloads and requirements of the envisioned invasive applications. Challenge is to map (static/dynamic) application properties to iRTSS configuration variants and to efficient instantiation schemes for i-let entities considering cross-cutting, non-functional properties (e.g., energy, timeliness).
Central design goal is prevention/avoidance of contention, exploitation of locality, and provision of latency hiding. This shall be accomplished by a strict separation between mechanisms (subproject C1) and strategies (in cooperation with subproject A3), on the one hand, and a consequent postponement of design decisions, on the other hand, in the overall iRTSS design process. The methods and concepts studied track configuration and adaptation in three dimensions, spanning the three major iRTSS research topics:
- horizontal adaptation using agent-based self-adapting resource allocation,
- vertical configuration using an infrastructure for static/dynamic provision of application-specific operating system extensions, and
- interior customisation using variants of selected system functions to manifest application-oriented iRTSS architectures.
Agents acting on behalf of applications observe the system and negotiate resource allocation with respect to current system load and characteristic features of their applications. They interact and bargain across applications at the same level of abstraction (horizontal adaptation). Also, they establish resource bindings by triggering on-demand vertical configuration of the underlying computing platform, leading to static/dynamic weaving of extension aspects.
Extension aspects "materialise" application-specific configurations of iRTSS and the invasive hardware. Mechanisms are provided to partition, virtualise, and control the invasive hardware as well as measures for contention prevention/avoidance, locality maintenance, and latency hiding by interior customisation. For a subset of abstractions, different implementations of the same functional interface will exist that vary in their non-functional properties (with respect to contention or latency) and serve a fine-grain exposure to trade-offs arising from multiplexing hardware amongst competing applications.
Detailed Description: OctoPOS
The system software OctoPOS acts as a broker between the X10 runtime system
with its applications and the underlying hardware.
Interaction with the X10 runtime system
The OctoPOS provides an interface for mapping the different activities inside an X10 programm onto the different flavours of invasive hardware. Depending on the actual hardware configuration, this process can be partially supported dedicated hardware, for instance by the Dynamic Many-Core i-let Controller (CiC). Moreover the OctoPOS implements facilities for intra-tile, cross-tile and cross-application communication using shared memory, where available, or the invasive NoC (iNoC).
Interaction with the underlying hardware
Among the supported hardware platforms are SPARC Leon, iCore and Intel x86. In addition, it is possible to run OctoPOS as a user process within a Linux system, enabling developers to test applications with the entire invasive software stack.
Publications
| [1] | Lars Bauer, Jörg Henkel, Timo Hönig, Wolfgang Schröder-Preikschat, Christian Eichler, Jeferson Gonzalez, Benedict Herzog, Tobias Langer, Sebastian Maier, Jonas Rabenstein, Phillip Raffeck, and Florian Schmaus. Invasive run-time support system (irtss). In Jürgen Teich, Jörg Henkel, and Andreas Herkersdorf, editors, Invasive Computing, pages 285–308. FAU University Press, August 16, 2022. [ DOI ] |
| [2] | Nidhi Anantharajaiah, Tamim Asfour, Michael Bader, Lars Bauer, Jürgen Becker, Simon Bischof, Marcel Brand, Hans-Joachim Bungartz, Christian Eichler, Khalil Esper, Joachim Falk, Nael Fasfous, Felix Freiling, Andreas Fried, Michael Gerndt, Michael Glaß, Jeferson Gonzalez, Frank Hannig, Christian Heidorn, Jörg Henkel, Andreas Herkersdorf, Benedict Herzog, Jophin John, Timo Hönig, Felix Hundhausen, Heba Khdr, Tobias Langer, Oliver Lenke, Fabian Lesniak, Alexander Lindermayr, Alexandra Listl, Sebastian Maier, Nicole Megow, Marcel Mettler, Daniel Müller-Gritschneder, Hassan Nassar, Fabian Paus, Alexander Pöppl, Behnaz Pourmohseni, Jonas Rabenstein, Phillip Raffeck, Martin Rapp, Santiago Narváez Rivas, Mark Sagi, Franziska Schirrmacher, Ulf Schlichtmann, Florian Schmaus, Wolfgang Schröder-Preikschat, Tobias Schwarzer, Mohammed Bakr Sikal, Bertrand Simon, Gregor Snelting, Jan Spieck, Akshay Srivatsa, Walter Stechele, Jürgen Teich, Furkan Turan, Isaías A. Comprés Ureña, Ingrid Verbauwhede, Dominik Walter, Thomas Wild, Stefan Wildermann, Mario Wille, Michael Witterauf, and Li Zhang. Invasive Computing. FAU University Press, August 16, 2022. [ DOI ] |
| [3] | Volker Wenzel, Lars Bauer, Wolfgang Schröder-Preikschat, and Jörg Henkel. Agent-based constraint solving for resource allocation in manycore systems, April 2022. [ DOI | http ] |
| [4] | Tobias Langer. Memory Management in Massive Parallel Non-Coherent Systems. Upcoming dissertation, Lehrstuhl für Verteilte Systeme und Betriebssysteme, Department Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2022. |
| [5] | Florian Schmaus, Florian Fischer, Timo Hönig, and Wolfgang Schröder-Preikschat. Modern concurrency platforms require modern system-call techniques. Technical Report CS-2021-02, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department Informatik, November 2021. [ DOI | http ] |
| [6] | Tobias Langer, Jonas Rabenstein, Timo Hönig, and Wolfgang Schröder-Preikschat. No coherence? no problem! virtual shared memory for MPSoCs. In 2021 IEEE/ACM International Workshop on Runtime and Operating Systems for Supercomputers (ROSS), 2021 SC Workshops Supplementary Proceedings (SCWS), pages 1–9, 2021. [ http ] |
| [7] |
Benedict Herzog, Stefan Reif, Fabian Hügel, Timo Hönig, and Wolfgang
Schröder-Preikschat.
Towards automated system-level energy-efficiency optimisation using
machine learning: Poster.
In Proceedings of the Twelfth ACM International Conference on
Future Energy Systems, e-Energy '21, pages 274–275, New York, NY, USA,
2021. Association for Computing Machinery.
[ DOI ]
Keywords: Machine Learning, Energy Efficiency, System Configuration |
| [8] |
Stefan Reif, Benedict Herzog, Judith Hemp, Wolfgang Schröder-Preikschat,
and Timo Hönig.
Ai waste prevention: Time and power estimation for edge tensor
processing units: Poster.
In Proceedings of the Twelfth ACM International Conference on
Future Energy Systems, e-Energy '21, pages 300–301, New York, NY, USA,
2021. Association for Computing Machinery.
[ DOI ]
Keywords: Resource Awareness, Neural Network Accelerators, Green AI |
| [9] | Christian Eichler, Henriette Hofmeier, Stefan Reif, Timo Hönig, Jörg Nolte, and Wolfgang Schröder-Preikschat. Neverlast: Towards the design and implementation of the NVM-based everlasting operating system. In Proceedings of the 54th Hawaii International Conference on System Sciences (HICSS-54), pages 7227–7236, Honolulu, HI, USA, 2021. ScholarSpace. [ DOI ] |
| [10] | Christian Eichler, Henriette Hofmeier, Stefan Reif, Timo Hönig, Jörg Nolte, and Wolfgang Schröder-Preikschat. Neverlast: An NVM-centric operating system for persistent edge systems. In Proceedings of the 12th ACM SIGOPS Asia-Pacific Workshop on Systems, pages 146–153, New York, NY, USA, 2021. Association for Computing Machinery. [ DOI ] |
| [11] | Tobias Klaus, Matthias Becker, Wolfgang Schröder-Preikschat, and Peter Ulbrich. Constrained data-age with job-level dependencies: How to reconcile tight bounds and overheads. In 2021 IEEE 27th Real-Time and Embedded Technology and Applications Symposium (RTAS), pages 66–79, 2021. [ DOI ] |
| [12] | Steffen Vaas, Peter Ulbrich, Christian Eichler, Peter Wägemann, Marc Reichenbach, and Dietmar Fey. Taming non-deterministic low-level i/o: Predictable multi-core real-time systems by soc co-design. In 2021 IEEE 24th International Symposium on Real-Time Distributed Computing (ISORC 2021), pages 43–52, 2021. [ DOI ] |
| [13] | Simon Schuster, Peter Wägemann, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Annotate once – analyze anywhere: Context-aware wcet analysis by user-defined abstractions. In Proceedings of the 22nd ACM SIGPLAN/SIGBED International Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES '21, pages 54–66, New York, NY, USA, 2021. Association for Computing Machinery. [ DOI ] |
| [14] | Gabor Drescher. Adaptive Address-Space Management for Resource-Aware Applications. Dissertation, Lehrstuhl für Verteilte Systeme und Betriebssysteme, Department Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2021. [ http ] |
| [15] | Benedict Herzog, Stefan Reif, Julian Preis, Timo Hönig, and Wolfgang Schröder-Preikschat. The price of meltdown and spectre: Energy overhead of mitigations at operating system level. In Proceedings of the 14th European Workshop on Systems Security (EuroSec'21), 2021. [ DOI ] |
| [16] | Benedict Herzog, Fabian Hügel, Stefan Reif, Timo Hönig, and Wolfgang Schröder-Preikschat. Automated selection of energy-efficient operating system configurations. In Proceedings of the 2nd International Workshop on Energy-Efficient Learning at the Edge (WEEE'21), 2021. |
| [17] | Luis Gerhorst, Stefan Reif, Benedict Herzog, and Timo Hönig. Energybudgets: Integrating physical energy measurement devices into systems software. In 2020 Brazilian Symposium on Computing Systems Engineering (SBESC), pages 1–8, 2020. [ DOI ] |
| [18] | Stefan Reif, Phillip Raffeck, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Control-flow migration for data-locality optimisation in multi-core real-time systems. In 2020 IEEE Real-Time Systems Symposium (RTSS), Work in Progress, pages 371–374, 2020. [ DOI ] |
| [19] | Sven Köhler, Benedict Herzog, Timo Hönig, Lukas Wenzel, Max Plauth, Jörg Nolte, Andreas Polze, and Wolfgang Schröder-Preikschat. Pinpoint the joules: Unifying runtime-support for energy measurements on heterogeneous systems. In 2020 IEEE/ACM International Workshop on Runtime and Operating Systems for Supercomputers (ROSS), pages 31–40, 2020. [ DOI ] |
| [20] | Christoph Erhardt. Operating-System Support for Efficient Fine-Grained Concurrency in Applications. Dissertation, Lehrstuhl für Verteilte Systeme und Betriebssysteme, Department Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2020. [ http ] |
| [21] | Tirthak Patel, Christopher Eibel, Thomas Zeiser, Devesh Tiwari, Adam Wagenhäuser, and Timo Hönig. What does power consumption behavior of hpc jobs reveal? In Proceedings of the 34th IEEE International Parallel and Distributed Processing Symposium (IPDPS'20), 2020. [ DOI ] |
| [22] | Stefan Reif, Benedict Herzog, Judith Hemp, Timo Hönig, and Wolfgang Schröder-Preikschat. Precious: Resource-demand estimation for embedded neural network accelerators. In Proceedings of the 1st International Workshop on Benchmarking Machine Learning Workloads on Emerging Hardware (CHALLENGE'20), 2020. [ .pdf ] |
| [23] | Jürgen Teich, Pouya Mahmoody, Behnaz Pourmohseni, Sascha Roloff, Wolfgang Schröder-Preikschat, and Stefan Wildermann. Run-Time Enforcement of Non-functional Program Properties on MPSoCs. In Jian-Jia Chen, editor, A Journey of Embedded and Cyber-Physical Systems, pages 125–149. Springer, 2020. [ DOI ] |
| [24] | Florian Schmaus, Sebastian Maier, Tobias Langer, Jonas Rabenstein, Timo Hönig, Lars Bauer, Jörg Henkel, and Wolfgang Schröder-Preikschat. System software for resource arbitration on future many-* architectures. In 2020 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW), pages 967–975. IEEE, 2020. [ DOI ] |
| [25] | Sven Rheindt, Sebastian Maier, Nora Pohle, Lars Nolte, Oliver Lenke, Florian Schmaus, Thomas Wild, Wolfgang Schröder-Preikschat, and Andreas Herkersdorf. DySHARQ: Dynamic software-defined hardware-managed queues for tile-based architectures. International Journal of Parallel Programming, 2020. [ DOI ] |
| [26] | Stefan Reif, Benedict Herzog, Fabian Hügel, Timo Hönig, and Wolfgang Schröder-Preikschat. Nearly symmetric multi-core processors. In 11th ACM SIGOPS Asia-Pacific Workshop on Systems (APSys'20), 2020. |
| [27] | Wolfgang Schröder-Preikschat and Timo Hönig. Adaptive memory protection for many-core systems. Invited Talk University of Otago, New Zealand, October 4, 2019. |
| [28] | Wolfgang Schröder-Preikschat and Timo Hönig. Predictability issues in operating systems: Time, space, energy. Invited Talk University of Wellington, New Zealand, September 23, 2019. |
| [29] | Wolfgang Schröder-Preikschat. Time predictability, energy awareness and security in embedded and real-time systems. Invited Talk University of Auckland, New Zealand, September 16, 2019. |
| [30] | Volkmar Sieh, Robert Burlacu, Timo Hönig, Heiko Janker, Phillip Raffeck, Peter Wägemann, and Wolfgang Schröder-Preikschat. Combining automated measurement-based cost modeling with static worst-case execution-time and energy-consumption analyses. IEEE Embedded Systems Letters, 11(2):38–41, June 2019. [ DOI ] |
| [31] | Wolfgang Schröder-Preikschat. Predictability issues in operating systems. Keynote, International Conference on Architecture of Computing Systems (ARCS), Copenhagen, Denmark, May 2019. |
| [32] | Phillip Raffeck, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Migration hints in real-time operating systems. In 2019 IEEE Real-Time Systems Symposium (RTSS), Work in Progress, pages 528–531, 2019. [ DOI ] |
| [33] | Alexander Würstlein and Wolfgang Schröder-Preikschat. T-IBE-T: Identity-based encryption for inter-tile communication. In Proceedings of the 12th European Workshop on Systems Security (EuroSec 2019), pages 1–6. ACM Digital Library, 2019. [ DOI ] |
| [34] | Simon Schuster, Peter Wägemann, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Proving real-time capability of generic operating systems by system-aware timing analysis. In Proceedings of the 25th Real-Time and Embedded Technology and Applications Symposium (RTAS 2019), pages 313–330. IEEE Computer Society, 2019. [ DOI ] |
| [35] | Timo Hönig, Benedict Herzog, and Wolfgang Schröder-Preikschat. Energy-demand estimation of embedded devices using deep artificial neural networks. In Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing (SAC 2019), pages 617–624. ACM Digital Library, 2019. [ DOI ] |
| [36] | Stefan Reif, Phillip Raffeck, Heiko Janker, Luis Gerhorst, Timo Hönig, and Wolfgang Schröder-Preikschat. Earl: Energy-aware reconfigurable locks. In Proceedings of the 9th Embedded Operating Systems Workshop (EWiLi 2019), New York, NY, USA, 2019. ACM, ACM SIGBED Review. [ DOI ] |
| [37] | Bernhard Heinloth, Marco Ammon, Dustin Nguyen, Timo Hönig, Volkmar Sieh, and Wolfgang Schröder-Preikschat. Cocoon: Custom-fitted kernel compiled on demand. In Proceedings of the 10th Workshop on Programming Languages and Operating Systems (PLOS '19), pages 1–7, New York, NY, USA, 2019. ACM, ACM Digital Library. [ DOI ] |
| [38] | Tobias Klaus, Peter Ulbrich, Phillip Raffeck, Benjamin Frank, Lisa Wernet, Maxim Ritter von Onciul, and Wolfgang Schröder-Preikschat. Boosting job-level migration by static analysis. In Proceedings of the 15th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications (OSPERT 2019), pages 17–22. Euromicro, Sankt Augustin, TU Dresden & Leibniz Universität Hannover, 2019. [ .pdf ] |
| [39] | Wolfgang Schröder-Preikschat. Adaptive memory protection for many-core systems. Invited talk, ASECOLab Seminar, University of Hawaii at Manoa, January 4, 2019. |
| [40] | Sebastian Maier, Timo Hönig, Peter Wägemann, and Wolfgang Schröder-Preikschat. Asynchronous Abstract Machines: Anti-noise system software for many-core processors. In Proceedings of the 9th International Workshop on Runtime and Operating Systems for Supercomputers (ROSS 2019), pages 19–26. ACM, 2019. [ DOI | .pdf ] |
| [41] | Sven Rheindt, Sebastian Maier, Florian Schmaus, Thomas Wild, Wolfgang Schröder-Preikschat, and Andreas Herkersdorf. SHARQ: Software-defined hardware-managed queues for tile-based manycore architectures. In Proceedings of the 19th International Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation (SAMOS), pages 212–225. Springer, 2019. [ DOI ] |
| [42] | Benedic Herzog, Luis Gerhorst, Bernhard Heinloth, Stefan Reif, Timo Hönig, and Wolfgang Schröder-Preikschat. INTSPECT: Interrupt latencies in the linux kernel. In Proceedings of the 2018 Brazilian Symposium on Computing Systems Engineering (SBESC '18), pages 1–8, November 2018. |
| [43] | Timo Hönig. Exploiting dynamic electricity prices with an energy-aware runtime system for heterogeneous hpc clusters. Invited talk, Department of Computer Science, Reykjavík University (RU), Reykjavík, Iceland, October 2, 2018. |
| [44] | Wolfgang Schröder-Preikschat. Predictability issues in operating systems. Invited talk, Federal University of Technology - Parana (UTFPR), Department of Computer Science, Curitiba, Brazil, August 7, 2018. |
| [45] | Christian Eichler, Tobias Distler, Peter Ulbrich, Peter Wägemann, and Wolfgang Schröder-Preikschat. TASKers: A whole-system generator for benchmarking real-time-system analyses. In Proceedings of the 18th International Workshop on Worst-Case Execution Time Analysis (WCET 2018), pages 6:1–6:12, July 3, 2018. [ DOI ] |
| [46] | Peter Wägemann, Christian Dietrich, Tobias Distler, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Whole-system worst-case energy-consumption analysis for energy-constrained real-time systems. In Proceedings of the 30th Euromicro Conference on Real-Time Systems (ECRTS '18), pages 24:1–24:25, July 2018. [ DOI ] |
| [47] | Wolfgang Schröder-Preikschat. Predictability issues in operating systems. Invited talk, Computer Science Colloquium, Leibniz Universität Hannover, June 29, 2018. |
| [48] | Timo Hönig, Christopher Eibel, Adam Wagenhäuser, Maximilian Wagner, and Wolfgang Schröder-Preikschat. Making profit with albatross: A runtime system for heterogeneous high-performance-computing clusters. In Proceedings of the 27th International Symposium on High-Performance Parallel and Distributed Computing (HPDC'18), pages 11–12. ACM, June 13, 2018. Poster session. [ DOI ] |
| [49] | Timo Hönig, Christopher Eibel, Adam Wagenhäuser, Maximilian Wagner, and Wolfgang Schröder-Preikschat. How to make profit: Exploiting fluctuating electricity prices with albatross, a runtime system for heterogeneous hpc clusters. In Proceedings of the 8th International Workshop on Runtime and Operating Systems for Supercomputers (ROSS 2018), page Article No. 4. ACM, June 12, 2018. [ DOI ] |
| [50] | Timo Hönig. Energy-aware system software for operating heterogeneous hpc systems in the age of dynamic electricity pricing. Invited talk, Flux Research Group, School of Computing, University of Utah, Salt Lake City, UT, USA, June 5, 2018. [ http ] |
| [51] | Timo Hönig. Linking energy awareness with cost effectiveness: Considering fluctuating electricity prices for operating heterogeneous hpc systems. Invited talk, Department of Computer Science, University of Texas at Austin (UT), Austin, TX, USA, June 1, 2018. |
| [52] | Christopher Eibel, Christian Gulden, Wolfgang Schröder-Preikschat, and Tobias Distler. Strome: Energy-aware data-stream processing. In Proceedings of the 18th International Conference on Distributed Applications and Interoperable Systems (DAIS '18), Lecture Notes in Computer Science (LNCS), pages 40–57. Springer, June 2018. |
| [53] | Timo Hönig. Building a runtime system for heterogeneous hpc clusters to exploit dynamic electricity pricing. Invited talk, Laboratory for Advanced System Software (LASS), College of Information and Computer Sciences, University of Massachusetts Amherst (UMass), Amherst, MA, USA, May 30, 2018. [ http ] |
| [54] | Wolfgang Schröder-Preikschat. Adaptive memory protection for many-core systems. Invited talk, Future Trends in SOC, Hasso-Plattner-Institut (HPI), Universität Potsdam, April 20, 2018. |
| [55] | Wolfgang Schröder-Preikschat. Predictability issues in operating systems. Invited talk, NII Shonan Meeting on Resilient Machine-to-Machine Communication, Shonan Village, Japan, March 27, 2018. |
| [56] | Jens Schedel. Funktional dedizierte Nutzung von Prozessorknoten zur Interferenzreduktion von Betriebssystemoperationen. Dissertation, Lehrstuhl für Verteilte Systeme und Betriebssysteme, Department Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, March 2018. [ http ] |
| [57] | Stefan Reif and Wolfgang Schröder-Preikschat. Predictable synchronisation algorithms for asynchronous critical sections. techreport CS-2018-03, Friedrich-Alexander-Universität Erlangen-Nürnberg, Department Informatik, Erlangen, Germany, March 2018. [ DOI ] |
| [58] | Wolfgang Schröder-Preikschat. Predictability issues in operating systems. Invited talk, Federal University of Santa Catarina (UFSC), Software/Hardware Integration Lab (LISHA), Florianopolis, Brazil, February 28, 2018. |
| [59] | Stefan Reif and Wolfgang Schröder-Preikschat. A predictable synchronisation algorithm. In Proceedings of the 23rd Annual Symposium on Principles and Practice of Parallel Programming (PPoPP '18), pages 415–416. ACM, February 2018. Poster session. [ DOI ] |
| [60] | Benjamin Oechslein. Leichtgewichtige Betriebssystemdienste für ressourcengewahre Anwendungen gekachelter Vielkernrechner. Dissertation, Lehrstuhl für Verteilte Systeme und Betriebssysteme, Department Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2018. [ http ] |
| [61] | Peter Wägemann, Tobias Distler, Heiko Janker, Phillip Raffeck, Volkmar Sieh, and Wolfgang Schröder-Preikschat. Operating energy-neutral real-time systems. ACM Transactions on Embedded Computing Systems, 17(1):Article No. 11, January 2018. [ DOI ] |
| [62] | Simon Schuster, Peter Wägemann, Peter Ulbrich, and Wolfgang Schröder-Preikschat. Towards system-wide timing analysis of real-time–capable operating systems. In Proceedings of the 30th Euromicro Conference on Real-Time Systems (ECRTS '18), Work in Progress, pages 10–12, 2018. [ .pdf ] |
| [63] | Alexander Pöppl, Marvin Damschen, Florian Schmaus, Andreas Fried, Manuel Mohr, Matthias Blankertz, Lars Bauer, Jörg Henkel, Wolfgang Schröder-Preikschat, and Michael Bader. Shallow water waves on a deep technology stack: Accelerating a finite volume tsunami model using reconfigurable hardware in invasive computing. In Dora B. Heras, Luc Bougé, Gabriele Mencagli, Emmanuel Jeannot, Rizos Sakellariou, Rosa M. Badia, Jorge G. Barbosa, Laura Ricci, Stephen L. Scott, Stefan Lankes, and Josef Weidendorfer, editors, Euro-Par 2017: Proceedings of the 10th Workshop on UnConventional High Performance Computing (UCHPC 2017), Lecture Notes in Computer Science (LNCS), pages 676–687, Cham, 2018. Springer International Publishing. |
| [64] | Anuj Pathania. Scalable Task Schedulers for Many-Core Architectures. Dissertation, Chair of Embedded Systems, Department of Informatics, Karlsruhe Institute of Technology, Germany, 2018. |
| [65] | Christian Eichler. Ein benchmarkgenerator von WCET-analysatoren. In Logik und Echtzeit, Echtzeit 2017, pages 59–68. Springer, Informatik aktuell, November 2017. [ DOI ] |
| [66] | Simon Schuster, Peter Ulbrich, Isabella Stilkerich, Christian Dietrich, and Wolfgang Schröder-Preikschat. Demystifying soft-error mitigation by control-flow checking—a new perspective on its effectiveness. ACM Transactions on Embedded Computing Systems, 16(5s):Article No. 180, October 2017. Special Issue ESWEEK 2017, CASES 2017, CODES + ISSS 2017 and EMSOFT 2017. [ DOI ] |
| [67] | Simon Schuster, Peter Ulbrich, Isabella Stilkerich, Christian Dietrich, and Wolfgang Schröder-Preikschat. Demystifying soft-error mitigation by control-flow checking—a new perspective on its effectiveness. In Proceedings of the 2017 International Conference on Embedded Software (EMSOFT 2017). ACM, October 2017. Poster session. |
| [68] | Jörg Henkel. The triangle of power density, circuit degradation and reliability. Invited Keynote Speech, 30th IEEE International System-On-Chip Conference (SoCC 2017), Munich, Germany, September 7, 2017. |
| [69] | A. Pathania, V. Venkataramani, M. Shafique, T. Mitra, and J. Henkel. Defragmentation of tasks in many-core architectures. ACM Transactions on Architecture and Code Optimization (TACO), 14(1):2:1–2:21, March 2017. [ DOI ] |
| [70] | Timo Hönig. Proactive Energy-Aware Computing. Dissertation, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2017. [ http ] |
| [71] | Christian Eichler, Peter Wägemann, Tobias Distler, and Wolfgang Schröder-Preikschat. Tooling support for benchmarking timing analysis. In Proceedings of the 23rd IEEE International Symposium on Real-Time and Embedded Technology and Applications (RTAS Demo '17), pages 159–160. IEEE Computer Society Press, 2017. Demo Abstract. |
| [72] | Peter Wägemann, Tobias Distler, Christian Eichler, and Wolfgang Schröder-Preikschat. Benchmark generation for timing analysis. In Proceedings of the 23rd IEEE International Symposium on Real-Time and Embedded Technology and Applications (RTAS '17), pages 319–330. IEEE Computer Society Press, 2017. [ DOI ] |
| [73] | Volkmar Sieh, Robert Burlacu, Timo Hönig, Heiko Janker, Phillip Raffeck, Peter Wägemann, and Wolfgang Schröder-Preikschat. An end-to-end toolchain: From automated cost modeling to static WCET and WCEC analysis. In Proceedings of the 20th IEEE Symposium on Real-Time Computing (ISORC 2017), pages 158–167, Washington, DC, USA, 2017. IEEE Computer Society Press. [ DOI ] |
| [74] | Stefan Reif, Timo Hönig, and Wolfgang Schröder-Preikschat. In the heat of conflict: On the synchronisation of critical sections. In Proceedings of the 20th IEEE Symposium on Real-Time Computing (ISORC 2017), pages 42–51, Washington, DC, USA, 2017. IEEE Computer Society Press. [ DOI ] |
| [75] |
Christian Dietrich, Valentin Rothberg, Ludwig Füracker, Andreas Ziegler,
and Daniel Lohmann.
chash: Detection of redundant compilations via AST hashing.
In USENIX Association, editor, Proceedings of the 2017 USENIX
Annual Technical Conference (ATC '17), pages 527–538, 2017.
Best Paper Award.
[ .pdf ]
Keywords: Compiler, Optimization |
| [76] |
Christian Dietrich, Peter Wägemann, Peter Ulbrich, and Daniel Lohmann.
SysWCET: whole-system response-time analysis for fixed-priority
real-time systems.
In Rob Davis and Gabriel Parmer, editors, Proceedings of the
23rd Real-Time and Embedded Technology and Applications Symposium (RTAS
'17), 2017.
Outstanding Paper Award.
[ DOI |
.pdf ]
Keywords: worst-case response time, WCRT, worst-case execution time, WCET, OSEK, AutoSAR, IPET, ILP, whole-system analysis, system-state enumeration |
| [77] |
Christian Dietrich and Daniel Lohmann.
OSEK-V: Application-specific rtos instantiation in hardware.
In Zili Shao and Vijay Nagarajan, editors, Proceedings of LCTES
'17, New York, 2017.
[ DOI |
.pdf ]
Keywords: Computer systems organization; Embedded systems; Real-time operating systems; Special purpose systems; |
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| [83] | Anuj Pathania, Vanchinathan Venkataramani, Muhammad Shafique, Tulika Mitra, and Jörg Henkel. Distributed fair scheduling for many-cores. In Design Automation and Test in Europe (DATE), pages 379–384, March 2016. |
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| [88] | Alexander Würstlein, Michael Gernoth, Johannes Götzfried, and Tilo Müller. Exzess: Hardware-based RAM Encryption against Physical Memory Disclosure. In Architecture of Computing Systems (ARCS'16). Springer, 2016. [ DOI | http ] |
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| [90] | Johannes Götzfried, Tilo Müller, Gabor Drescher, Stefan Nürnberger, and Michael Backes. RamCrypt: Kernel-based Address Space Encryption for User-mode Processes. In 11th ACM Asia Conference on Computer and Communications Security (ASAICCS), Special Interest Group on Security, Audit and Control (SIGSAC). ACM, 2016. [ DOI | http ] |
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| [95] | Wolfgang Schröder-Preikschat. Predicatbility in operating systems. Lecture, Sarntal Akademie, Italy, September 22, 2015. |
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| [97] | Daniel Lohmann. Adaptable system software. Invited Talk, Leibnitz-University Hanover, September 9, 2015. |
| [98] | Peter Wägemann, Tobias Distler, Timo Hönig, Volkmar Sieh, and Wolfgang Schröder-Preikschat. GenE: A benchmark generator for WCET analysis. In Proceedings of the 15th International Workshop on Worst-Case Execution Time Analysis (WCET 2015), pages 33–43, Lund, Sweden, July 2015. |
| [99] | Peter Wägemann, Tobias Distler, Timo Hönig, Heiko Janker, Rüdiger Kapitza, and Wolfgang Schröder-Preikschat. Worst-case energy consumption analyis for energy-constrained embedded systems. In Proceedings of the 27th EUROMICRO Conference on Real-Time Systems (ECRTS 2015), pages 105–114, Lund, Sweden, July 9, 2015. [ DOI ] |
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| [104] | Sebastian Kobbe. Scalable and Distributed Resource Management for Many-Core Systems. Dissertation, Chair for Embedded Systems (CES), Department of Computer Science, Karlsruhe Institute of Technology (KIT), Germany, May 11, 2015. |
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| [107] | Gabor Drescher and Wolfgang Schröder-Preikschat. Guarded sections: Structuring aid for wait-free synchronisation. Poster at the 18th IEEE Symposium on Real-Time Computing (ISORC 2015)., April 2015. |
| [108] | Sebastian Kobbe, Lars Bauer, and Jörg Henkel. Adaptive on-the-fly application performance modeling for many cores. In Proceedings of Design, Automation and Test in Europe Conference (DATE), pages 730–735, March 2015. |
| [109] | Daniel Lohmann. Two-dimensional tailoring of rtos kernels: Rethinking the hardware–application bridge. Invited Talk, INRIA/LIP6 Paris, January 15, 2015. |
| [110] | Gabor Drescher and Wolfgang Schröder-Preikschat. Guarded sections: Structuring aid for wait-free synchronisation. In Proceedings of the 18th IEEE Symposium on Real-Time Computing (ISORC 2015), pages 280–283, Washington, DC, USA, 2015. IEEE Computer Society Press. [ DOI ] |
| [111] | Gabor Drescher and Wolfgang Schröder-Preikschat. Wartefreie Synchronisation von Echtzeitprozessen mittels abgeschirmter Abschnitte. In Echtzeit 2015 — Betriebssysteme und Echtzeit, pages 59–68, Heidelberg, 2015. Springer. |
| [112] | Gabor Drescher and Wolfgang Schröder-Preikschat. An experiment in wait-free synchronisation of priority-controlled simultaneous processes: Guarded sections. Technical Reports CS-2015-01, Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Computer Science, Erlangen, Germany, January 2015. |
| [113] | Wolfgang Schröder-Preikschat. Invasive computing: A systems-programming perspective. Invited talk, TU Dresden, Institute of Systems Architecture, November 7, 2014. |
| [114] | Peter Wägemann, Timo Hönig, Rüdiger Kapitza, and Wolfgang Schröder-Preikschat. Worst-case energy consumption analysis for soft and hard energy systems. 11th USENIX Symposium on Operating System Design and Implementation (OSDI '14), October 2014. Poster. |
| [115] | Isabella Stilkerich, Philip Taffner, Christoph Erhardt, Christian Dietrich, Christian Wawersich, and Michael Stilkerich. Team Up: Cooperative Memory Management in Embedded Systems. In Proceedings of the 2014 Conference on Compilers, Architectures and Synthesis for Embedded Systems (CASES'14), page Art. No. 10, New York, NY, USA, October 2014. ACM. [ DOI ] |
| [116] | Isabella Stilkerich, Michael Strotz, Christoph Erhardt, and Michael Stilkerich. RT-LAGC: Fragmentation-Tolerant Real-Time Memory Management Revisited. In Proceedings of the 12th International Workshop on Java Technologies for Real-time and Embedded Systems (JTRES '14), pages 87–96, New York, NY, USA, October 2014. ACM. [ DOI ] |
| [117] | Timo Hönig, Heiko Janker, Oliver Mihelic, Christopher Eibel, Rüdiger Kapitza, and Wolfgang Schröder-Preikschat. Proactive energy-aware programming with PEEK. In 2014 Conference on Timely Results in Operating Systems (TRIOS '14), Broomfield, CO, October 2014. USENIX Association. [ http ] |
| [118] | Stefan Nürnberger, Gabor Drescher, Randolf Rotta, Jörg Nolte, and Wolfgang Schröder-Preikschat. Shared memory in the many-core age. In Proceedings of the International Workshop on Runtime and Operating Systems for the Many-core Era (ROME 2014), Lecture Notes in Computer Science (LNCS). Springer, August 26, 2014. |
| [119] | Daniel Lohmann. Automatic tailoring of system software: Rethinking the application-hardware bridge. Invited talk, June 23, 2014. D. E. Shaw Research, New York City, USA. |
| [120] | Benjamin Oechslein, Christoph Erhardt, Jens Schedel, Daniel Lohmann, and Wolfgang Schröder-Preikschat. OctoPOS: A hardware-assisted OS for many-cores. Poster presentation at the 9th European Conference on Computer Systems (EuroSys 2014), April 15, 2014. |
| [121] | Wolfgang Schröder-Preikschat. Embedded computing systems in the multi-core era. Invited talk, University of Canterbury, Christchurch, New Zealand, March 7, 2014. |
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| [124] | Janmartin Jahn. Resource Allocation for Software Pipelines in Many-core Systems. Dissertation, Chair for Embedded Systems (CES), Department of Computer Science, Karlsruhe Institute of Technology (KIT), Germany, February 13, 2014. |
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| [130] | Wolfgang Schröder-Preikschat. Embedded computing systems in the multi-core era. Invited keynote, 3rd Brazilian Symposium on Computing Systems Engineering (SBESC 2013), Niterói, Brazil, November 5, 2013. |
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| [132] | Wolfgang Schröder-Preikschat. Virtuelle maschinen. Eingeladener Vortrag, INFORMATIK 2013, Workshop "`Virtualisierung: gestern, heute und morgen"', Koblenz, September 19, 2013. |
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| [139] | Reinhard Tartler. Mastering Variability Challenges in Linux and related Highly-Configurable System Software. Dissertation, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2013. |
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| [141] | Wolfgang Schröder-Preikschat. Invasive computing: A systems-programming perspective. Invited talk, Université Pierre et Marie Curie (UPMC), Laboratoire d'Informatique de Paris (LIP6), Paris, September 28, 2012. |
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| [147] | Julio Sincero. Variability Bugs in System Software. Dissertation, Friedrich-Alexander-Universität Erlangen-Nürnberg, 2012. |
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| [151] | Wolfgang Schröder-Preikschat. System software in the many-core era. Invited talk, Future Trends in SOC, Hasso-Plattner-Institut (HPI), Universität Potsdam, June 16, 2011. |
| [152] | Reinhard Tartler, Daniel Lohmann, Julio Cezar Rodrigues Sincero, and Wolfgang Schröder-Preikschat. Feature consistency in compile-time configurable system software. In Christoph Kirsch and Gernot Heiser, editors, Proceedings of the Sixth International ACM/EuroSys European Conference on Computer Systems (EuroSys), pages 47–60. ACM Press, April 2011. [ DOI ] |
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| [156] | Wolfgang Schröder-Preikschat. Systemsoftware im zeitalter mehrkerniger prozessoren. Vortrag, October 15, 2010. GI-Fachgruppe Betriebssysteme, IBM, Böblingen. |
| [157] | Wolfgang Schröder-Preikschat. Systemsoftware im zeitalter mehrkerniger prozessoren. Vortrag, April 23, 2010. Innovation Forum Embedded Systems, BICC-NET, München. |
| [158] | Wolfgang Schröder-Preikschat. Laufzeitsysteme mehrkerniger Prozessoren - Aspekte der Synchronisation in Betriebssystemen. Eingeladener Vortrag, April 13, 2010. Workshop zu Multicore Architecture and Programming Model Co-Optimization (MAPCO), TU München, Kloster Seeon. |
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| [160] | Wolfgang Schröder-Preikschat. Invasive Computing - Paralleles Betriebssystem einer SFB/TRR-Projektinitiative. Vortrag, November 12, 2009. GI-Fachgruppe Betriebssysteme, TU Dortmund, Universitätskolleg Bommerholz. |
| [161] | Wolfgang Schröder-Preikschat. Systemsoftware im zeitalter mehrkerniger prozessoren. Eingeladener Vortrag, November 3, 2009. Vom Single-Core zum Multi-Core-Processing: Chancen und Herausforderungen für Eingebettete Systeme, Fraunhofer FIRST, Berlin. |
| [162] | Jürgen Teich. Invasive algorithms and architectures. it - Information Technology, 50(5):300–310, 2008. |
| [163] | Philippe Stellwag and Wolfgang Schröder-Preikschat. Challenges in real-time synchronization. In Michael McCool and Mendel Rosenblum, editors, Proceedings of the 3rd USENIX Workshop on Hot Topics in Parallelism (HotPar). USENIX Association. |
| [164] | Tiago Rogério Mück, Antônio Augusto Medeiros Fröhlich, Michael Gernoth, and Wolfgang Schröder-Preikschat. Implementing OS components in hardware using AOP. ACM SIGOPS Operating Systems Review, 46(1):64–72. Best Papers from 2011 Brazilian Symposium on Computing Systems Engineering (SBESC). |
| [165] | Timo Hönig, Christopher Eibel, Rüdiger Kapitza, and Wolfgang Schröder-Preikschat. Seep: exploiting symbolic execution for energy-aware programming. ACM SIGOPS Operating Systems Review, 45(3):58–62. [ DOI ] |