---
_id: '63758'
abstract:
- lang: eng
text: Resilient systems require monitoring and prediction of environmental and intrinsic
conditions and the ability to adapt to changing circumstances to optimize the
trade-off between performance, power consumption, and fault tolerance. TETRISC
was introduced as a resilient multicore RISC-V processor system based on the PULPissimo
platform. This paper presents the migration of TETRISC to the Rocket Chip SoC,
which is freely scalable to the number of processors through parametrizable Chisel
models. As such, we discuss and evaluate the main advantages and obstacles that
come with the Chipyard framework for RTL simulation and FPGA synthesis for the
rapid prototyping of resilient, scalable architectures that are online configurable
through software for different multicore and lock-step modes.
author:
- first_name: Kai Arne
full_name: Hannemann, Kai Arne
id: '63972'
last_name: Hannemann
- first_name: Lars
full_name: Luchterhandt, Lars
last_name: Luchterhandt
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: Markus
full_name: Ulbricht, Markus
last_name: Ulbricht
- first_name: Li
full_name: Lu, Li
last_name: Lu
citation:
ama: 'Hannemann KA, Luchterhandt L, Müller W, Ulbricht M, Lu L. Redesigning the
TETRISC Architecture for Scalable Rocket Chip Implementations. In: 38. ITG
/ GMM / GI - Workshop Testmethoden Und Zuverlässigkeit von Schaltungen Und Systemen.
; 2026.'
apa: Hannemann, K. A., Luchterhandt, L., Müller, W., Ulbricht, M., & Lu, L.
(2026). Redesigning the TETRISC Architecture for Scalable Rocket Chip Implementations.
38. ITG / GMM / GI - Workshop Testmethoden Und Zuverlässigkeit von Schaltungen
Und Systemen. 38. ITG / GMM / GI - Workshop Testmethoden und Zuverlässigkeit
von Schaltungen und Systemen, Potsdam.
bibtex: '@inproceedings{Hannemann_Luchterhandt_Müller_Ulbricht_Lu_2026, place={Potsdam},
title={Redesigning the TETRISC Architecture for Scalable Rocket Chip Implementations},
booktitle={38. ITG / GMM / GI - Workshop Testmethoden und Zuverlässigkeit von
Schaltungen und Systemen}, author={Hannemann, Kai Arne and Luchterhandt, Lars
and Müller, Wolfgang and Ulbricht, Markus and Lu, Li}, year={2026} }'
chicago: Hannemann, Kai Arne, Lars Luchterhandt, Wolfgang Müller, Markus Ulbricht,
and Li Lu. “Redesigning the TETRISC Architecture for Scalable Rocket Chip Implementations.”
In 38. ITG / GMM / GI - Workshop Testmethoden Und Zuverlässigkeit von Schaltungen
Und Systemen. Potsdam, 2026.
ieee: K. A. Hannemann, L. Luchterhandt, W. Müller, M. Ulbricht, and L. Lu, “Redesigning
the TETRISC Architecture for Scalable Rocket Chip Implementations,” presented
at the 38. ITG / GMM / GI - Workshop Testmethoden und Zuverlässigkeit von Schaltungen
und Systemen, Potsdam, 2026.
mla: Hannemann, Kai Arne, et al. “Redesigning the TETRISC Architecture for Scalable
Rocket Chip Implementations.” 38. ITG / GMM / GI - Workshop Testmethoden Und
Zuverlässigkeit von Schaltungen Und Systemen, 2026.
short: 'K.A. Hannemann, L. Luchterhandt, W. Müller, M. Ulbricht, L. Lu, in: 38.
ITG / GMM / GI - Workshop Testmethoden Und Zuverlässigkeit von Schaltungen Und
Systemen, Potsdam, 2026.'
conference:
end_date: 2026-02-24
location: Potsdam
name: 38. ITG / GMM / GI - Workshop Testmethoden und Zuverlässigkeit von Schaltungen
und Systemen
start_date: 2026-02-22
date_created: 2026-01-27T13:14:51Z
date_updated: 2026-05-08T09:08:14Z
department:
- _id: '58'
has_accepted_license: '1'
keyword:
- RISC-V
- Multicore
- Fault Tolerant
- TETRISC
- Chisel
- Chipyard
language:
- iso: eng
place: Potsdam
publication: 38. ITG / GMM / GI - Workshop Testmethoden und Zuverlässigkeit von Schaltungen
und Systemen
status: public
title: Redesigning the TETRISC Architecture for Scalable Rocket Chip Implementations
type: conference
user_id: '63972'
year: '2026'
...
---
_id: '36918'
abstract:
- lang: eng
text: This paper presents an advanced eight levels spanning SystemC based virtual
platform methodology and framework - referred to as HeroeS 3 - providing smooth
application to platform mapping and continuous co-refinement of a virtual prototype
with its physical environment model. For heterogeneity support, various SystemC
extensions are combined covering continuous/discrete models of computation and
different communication abstractions, such as analog mixed-signal models, abstract
RTOS/HAL/middleware models, TLM bus models, and QEMU wrappers. We enable dependability
assessment by Fault Effect Modeling (FEM) at the virtual prototype in order to
avoid risking physical injury or damage. Also, simulation results are deterministic
and can be evaluated interactively or offline. We apply FEM to both the physical
environment model and the different abstractions of the virtual prototype. Currently,
we focus on sensor failures and application control flow errors.
author:
- first_name: Markus
full_name: Becker, Markus
last_name: Becker
- first_name: Christoph
full_name: Kuznik, Christoph
last_name: Kuznik
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
citation:
ama: 'Becker M, Kuznik C, Müller W. Fault Effect Modeling in a Heterogeneous SystemC
Based Virtual Platform Framework for Cyber Physical Systems. In: IEEE; 2014. doi:10.1109/ICCPS.2014.6843726'
apa: Becker, M., Kuznik, C., & Müller, W. (2014). Fault Effect Modeling in
a Heterogeneous SystemC Based Virtual Platform Framework for Cyber Physical Systems.
ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), Berlin. https://doi.org/10.1109/ICCPS.2014.6843726
bibtex: '@inproceedings{Becker_Kuznik_Müller_2014, place={Berlin}, title={Fault
Effect Modeling in a Heterogeneous SystemC Based Virtual Platform Framework for
Cyber Physical Systems}, DOI={10.1109/ICCPS.2014.6843726},
publisher={IEEE}, author={Becker, Markus and Kuznik, Christoph and Müller, Wolfgang},
year={2014} }'
chicago: 'Becker, Markus, Christoph Kuznik, and Wolfgang Müller. “Fault Effect Modeling
in a Heterogeneous SystemC Based Virtual Platform Framework for Cyber Physical
Systems.” Berlin: IEEE, 2014. https://doi.org/10.1109/ICCPS.2014.6843726.'
ieee: 'M. Becker, C. Kuznik, and W. Müller, “Fault Effect Modeling in a Heterogeneous
SystemC Based Virtual Platform Framework for Cyber Physical Systems,” presented
at the ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), Berlin,
2014, doi: 10.1109/ICCPS.2014.6843726.'
mla: Becker, Markus, et al. Fault Effect Modeling in a Heterogeneous SystemC
Based Virtual Platform Framework for Cyber Physical Systems. IEEE, 2014, doi:10.1109/ICCPS.2014.6843726.
short: 'M. Becker, C. Kuznik, W. Müller, in: IEEE, Berlin, 2014.'
conference:
location: Berlin
name: ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS)
date_created: 2023-01-16T11:57:08Z
date_updated: 2023-01-16T11:57:22Z
department:
- _id: '58'
doi: 10.1109/ICCPS.2014.6843726
keyword:
- Computational modeling
- Finite element analysis
- Prototypes
- Abstracts
- Software
- Fault tolerance
- Fault tolerant systems
language:
- iso: eng
place: Berlin
publisher: IEEE
status: public
title: Fault Effect Modeling in a Heterogeneous SystemC Based Virtual Platform Framework
for Cyber Physical Systems
type: conference
user_id: '5786'
year: '2014'
...
---
_id: '10620'
author:
- first_name: Jahanzeb
full_name: Anwer, Jahanzeb
last_name: Anwer
- first_name: Sebastian
full_name: Meisner, Sebastian
last_name: Meisner
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
citation:
ama: 'Anwer J, Meisner S, Platzner M. Dynamic reliability management: Reconfiguring
reliability-levels of hardware designs at runtime. In: Reconfigurable Computing
and FPGAs (ReConFig), 2013 International Conference On. ; 2013:1-6. doi:10.1109/ReConFig.2013.6732280'
apa: 'Anwer, J., Meisner, S., & Platzner, M. (2013). Dynamic reliability management:
Reconfiguring reliability-levels of hardware designs at runtime. In Reconfigurable
Computing and FPGAs (ReConFig), 2013 International Conference on (pp. 1–6).
https://doi.org/10.1109/ReConFig.2013.6732280'
bibtex: '@inproceedings{Anwer_Meisner_Platzner_2013, title={Dynamic reliability
management: Reconfiguring reliability-levels of hardware designs at runtime},
DOI={10.1109/ReConFig.2013.6732280},
booktitle={Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference
on}, author={Anwer, Jahanzeb and Meisner, Sebastian and Platzner, Marco}, year={2013},
pages={1–6} }'
chicago: 'Anwer, Jahanzeb, Sebastian Meisner, and Marco Platzner. “Dynamic Reliability
Management: Reconfiguring Reliability-Levels of Hardware Designs at Runtime.”
In Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference
On, 1–6, 2013. https://doi.org/10.1109/ReConFig.2013.6732280.'
ieee: 'J. Anwer, S. Meisner, and M. Platzner, “Dynamic reliability management: Reconfiguring
reliability-levels of hardware designs at runtime,” in Reconfigurable Computing
and FPGAs (ReConFig), 2013 International Conference on, 2013, pp. 1–6.'
mla: 'Anwer, Jahanzeb, et al. “Dynamic Reliability Management: Reconfiguring Reliability-Levels
of Hardware Designs at Runtime.” Reconfigurable Computing and FPGAs (ReConFig),
2013 International Conference On, 2013, pp. 1–6, doi:10.1109/ReConFig.2013.6732280.'
short: 'J. Anwer, S. Meisner, M. Platzner, in: Reconfigurable Computing and FPGAs
(ReConFig), 2013 International Conference On, 2013, pp. 1–6.'
date_created: 2019-07-10T09:32:57Z
date_updated: 2022-01-06T06:50:48Z
department:
- _id: '78'
doi: 10.1109/ReConFig.2013.6732280
keyword:
- fault tolerant computing
- field programmable gate arrays
- logic design
- reliability
- BYU-LANL tool
- DRM tool flow
- FPGA based hardware designs
- avionic application
- device technologies
- dynamic reliability management
- fault-tolerant operation
- hardware designs
- reconfiguring reliability levels
- space applications
- Field programmable gate arrays
- Hardware
- Redundancy
- Reliability engineering
- Runtime
- Tunneling magnetoresistance
language:
- iso: eng
page: 1-6
publication: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference
on
status: public
title: 'Dynamic reliability management: Reconfiguring reliability-levels of hardware
designs at runtime'
type: conference
user_id: '3118'
year: '2013'
...
---
_id: '36922'
abstract:
- lang: eng
text: In this paper we present an approach for the self reconfiguration of distributed
micro-controllers for increased fault tolerance. Based on a modified distributed
system topology utilizing a time division multiple access (TDMA) protocol, i.e.,
Flex Ray, we present a self-organized distributed coordinator concept which performs
the self-reconfiguration in the case of node failures. We introduce a distributed
coordinator, which utilizes redundant slots in the Flex Ray communication schedule
and combines messages in configured protocol frames and slots to avoid a complete
bus restart. As such, the self-reconfiguration is realized by means of predetermined
information about resulting changes in the communication dependencies and (re-)assignments
determined in the design phase. To retrieve the necessary information, we present
an analytical approach, which determines a combined solution for the initial configuration
and all possible reconfigurations for the remaining nodes of the Flex Ray network
in case of node failures. Hence, through this method we can design self-reconfiguring
network-based systems enabling the handling of node failures for an increased
fault tolerance.
author:
- first_name: Kay
full_name: Klobedanz, Kay
last_name: Klobedanz
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: Achim
full_name: Rettberg, Achim
last_name: Rettberg
citation:
ama: 'Klobedanz K, Müller W, Rettberg A. An Approach for Self-Reconfiguring and
Fault-Tolerant Distributed Real-Time Systems. In: IEEE; 2012. doi:10.1109/ISORCW.2012.41'
apa: Klobedanz, K., Müller, W., & Rettberg, A. (2012). An Approach for Self-Reconfiguring
and Fault-Tolerant Distributed Real-Time Systems. IEEE 15th International
Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing
Workshops. https://doi.org/10.1109/ISORCW.2012.41
bibtex: '@inproceedings{Klobedanz_Müller_Rettberg_2012, place={Shenzhen, China },
title={An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time
Systems}, DOI={10.1109/ISORCW.2012.41},
publisher={IEEE}, author={Klobedanz, Kay and Müller, Wolfgang and Rettberg, Achim},
year={2012} }'
chicago: 'Klobedanz, Kay, Wolfgang Müller, and Achim Rettberg. “An Approach for
Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems.” Shenzhen,
China : IEEE, 2012. https://doi.org/10.1109/ISORCW.2012.41.'
ieee: 'K. Klobedanz, W. Müller, and A. Rettberg, “An Approach for Self-Reconfiguring
and Fault-Tolerant Distributed Real-Time Systems,” presented at the IEEE 15th
International Symposium on Object/Component/Service-Oriented Real-Time Distributed
Computing Workshops, 2012, doi: 10.1109/ISORCW.2012.41.'
mla: Klobedanz, Kay, et al. An Approach for Self-Reconfiguring and Fault-Tolerant
Distributed Real-Time Systems. IEEE, 2012, doi:10.1109/ISORCW.2012.41.
short: 'K. Klobedanz, W. Müller, A. Rettberg, in: IEEE, Shenzhen, China , 2012.'
conference:
name: IEEE 15th International Symposium on Object/Component/Service-Oriented Real-Time
Distributed Computing Workshops
date_created: 2023-01-16T12:23:50Z
date_updated: 2023-01-16T12:25:33Z
department:
- _id: '672'
doi: 10.1109/ISORCW.2012.41
keyword:
- Real time systems
- Fault tolerant systems
- Schedules
- Protocols
- Redundancy
- Delay
language:
- iso: eng
place: 'Shenzhen, China '
publication_identifier:
eisbn:
- 978-0-7695-4669-8
publisher: IEEE
status: public
title: An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time
Systems
type: conference
user_id: '5786'
year: '2012'
...
---
_id: '37006'
abstract:
- lang: eng
text: In this paper we present an approach for the configuration and reconfiguration
of FlexRay networks to increase their fault tolerance. To guarantee a correct
and deterministic system behavior, the FlexRay specification does not allow a
reconfiguration of the schedapproachule during run time. To avoid the necessity
of a complete bus restart in case of a node failure, we propose a reconfiguration
using redundant slots in the schedule and/or combine messages in existing frames
and slots, to compensate node failures and increase robustness. Our approach supports
the developer to increase the fault tolerance of the system during the design
phase. It is a heuristic, which, additionally to a determined initial configuration,
calculates possible reconfigurations for the remaining nodes of the FlexRay network
in case of a node failure, to keep the system working properly. An evaluation
by means of realistic safety-critical automotive real-time systems revealed that
it determines valid reconfigurations for up to 80% of possible individual node
failures. In summary, our approach offers major support for the developer of FlexRay
networks since the results provide helpful feedback about reconfiguration capabilities.
In an iterative design process these information can be used to determine and
optimize valid reconfigurations.
author:
- first_name: Kay
full_name: Klobedanz, Kay
last_name: Klobedanz
- first_name: Andreas
full_name: König, Andreas
last_name: König
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
citation:
ama: 'Klobedanz K, König A, Müller W. A Reconfiguration Approach for Faul-Tolerant
FlexRay Networks. In: Proceedings of DATE’11. IEEE; 2011. doi:10.1109/DATE.2011.5763022'
apa: Klobedanz, K., König, A., & Müller, W. (2011). A Reconfiguration Approach
for Faul-Tolerant FlexRay Networks. Proceedings of DATE’11. 2011 Design,
Automation & Test in Europe, Grenoble, France. https://doi.org/10.1109/DATE.2011.5763022
bibtex: '@inproceedings{Klobedanz_König_Müller_2011, place={Grenoble, France}, title={A
Reconfiguration Approach for Faul-Tolerant FlexRay Networks}, DOI={10.1109/DATE.2011.5763022},
booktitle={Proceedings of DATE’11}, publisher={IEEE}, author={Klobedanz, Kay and
König, Andreas and Müller, Wolfgang}, year={2011} }'
chicago: 'Klobedanz, Kay, Andreas König, and Wolfgang Müller. “A Reconfiguration
Approach for Faul-Tolerant FlexRay Networks.” In Proceedings of DATE’11.
Grenoble, France: IEEE, 2011. https://doi.org/10.1109/DATE.2011.5763022.'
ieee: 'K. Klobedanz, A. König, and W. Müller, “A Reconfiguration Approach for Faul-Tolerant
FlexRay Networks,” presented at the 2011 Design, Automation & Test in Europe,
Grenoble, France, 2011, doi: 10.1109/DATE.2011.5763022.'
mla: Klobedanz, Kay, et al. “A Reconfiguration Approach for Faul-Tolerant FlexRay
Networks.” Proceedings of DATE’11, IEEE, 2011, doi:10.1109/DATE.2011.5763022.
short: 'K. Klobedanz, A. König, W. Müller, in: Proceedings of DATE’11, IEEE, Grenoble,
France, 2011.'
conference:
location: Grenoble, France
name: 2011 Design, Automation & Test in Europe
date_created: 2023-01-17T09:09:25Z
date_updated: 2023-01-17T09:09:33Z
department:
- _id: '672'
doi: 10.1109/DATE.2011.5763022
keyword:
- Schedules
- Fault tolerant systems
- Redundancy
- Protocols
- Automotive engineering
- Genetic algorithms
language:
- iso: eng
place: Grenoble, France
publication: Proceedings of DATE'11
publisher: IEEE
status: public
title: A Reconfiguration Approach for Faul-Tolerant FlexRay Networks
type: conference
user_id: '5786'
year: '2011'
...
---
_id: '37056'
abstract:
- lang: eng
text: In this paper we present an approach to increase the fault tolerance in FlexRay
networks by introducing backup nodes to replace defect ECUs (Electronic Control
Units). In order to reduce the memory requirements of such backup nodes, we distribute
redundant tasks over different nodes and propose the distributed coordinated migration
of tasks of the defect ECU to the backup node at runtime. This approach enhances
our former work in, where we extended the FlexRay bus schedule by redundant slots
to consider changes in the communication/slot assignment and investigated and
evaluated different solutions to migrate the redundant tasks to the backup node
using the static and/or dynamic segment of the communication cycle for transmissions.
We present the approach of distributed coordination for migration and communication
instead of additional dedicated coordinator nodes to further increase the fault
tolerance. With this approach we improve the safety of FlexRay networks by avoiding
a possible single point of failure due to a dedicated coordinator node also minimizing
the necessary time needed for a reconfiguration after an ECU failure. Furthermore,
we reduce the overhead within the communication and the demand for additional
hardware components.
author:
- first_name: Kay
full_name: Klobedanz, Kay
last_name: Klobedanz
- first_name: Gilles B.
full_name: Defo, Gilles B.
last_name: Defo
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: Timo
full_name: Kerstan, Timo
last_name: Kerstan
citation:
ama: 'Klobedanz K, Defo GB, Müller W, Kerstan T. Distributed Coordination of Task
Migration for Fault-Tolerant FlexRay Networks. In: Proceedings of SIES 2010.
; 2010. doi:10.1109/SIES.2010.5551384'
apa: Klobedanz, K., Defo, G. B., Müller, W., & Kerstan, T. (2010). Distributed
Coordination of Task Migration for Fault-Tolerant FlexRay Networks. Proceedings
of SIES 2010. International Symposium on Industrial Embedded System (SIES).
https://doi.org/10.1109/SIES.2010.5551384
bibtex: '@inproceedings{Klobedanz_Defo_Müller_Kerstan_2010, place={Trento, Italien},
title={Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks},
DOI={10.1109/SIES.2010.5551384},
booktitle={Proceedings of SIES 2010}, author={Klobedanz, Kay and Defo, Gilles
B. and Müller, Wolfgang and Kerstan, Timo}, year={2010} }'
chicago: Klobedanz, Kay, Gilles B. Defo, Wolfgang Müller, and Timo Kerstan. “Distributed
Coordination of Task Migration for Fault-Tolerant FlexRay Networks.” In Proceedings
of SIES 2010. Trento, Italien, 2010. https://doi.org/10.1109/SIES.2010.5551384.
ieee: 'K. Klobedanz, G. B. Defo, W. Müller, and T. Kerstan, “Distributed Coordination
of Task Migration for Fault-Tolerant FlexRay Networks,” presented at the International
Symposium on Industrial Embedded System (SIES), 2010, doi: 10.1109/SIES.2010.5551384.'
mla: Klobedanz, Kay, et al. “Distributed Coordination of Task Migration for Fault-Tolerant
FlexRay Networks.” Proceedings of SIES 2010, 2010, doi:10.1109/SIES.2010.5551384.
short: 'K. Klobedanz, G.B. Defo, W. Müller, T. Kerstan, in: Proceedings of SIES
2010, Trento, Italien, 2010.'
conference:
name: International Symposium on Industrial Embedded System (SIES)
date_created: 2023-01-17T11:31:38Z
date_updated: 2023-01-17T11:31:47Z
department:
- _id: '672'
doi: 10.1109/SIES.2010.5551384
keyword:
- Fault tolerant systems
- Protocols
- Redundancy
- Runtime
- Payloads
- Schedules
language:
- iso: eng
place: Trento, Italien
publication: Proceedings of SIES 2010
publication_identifier:
eisbn:
- 978-1-4244-5841-7
status: public
title: Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks
type: conference
user_id: '5786'
year: '2010'
...