Deterministic Mechanism for Run-time Reconfiguration Activities in an RTOS

Götz, Marcelo; Dittmann, Florian; Pereira, Carlos Eduardo

doi:10.1109/indin.2006.275645

Cited by 13 publications

(11 citation statements)

References 7 publications

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“…Gï> 1 2 tz, Dittmann, and Pereira proposed a deterministic mechanism for reconfiguration in [8]. They use a hybrid architecture in which services of the RTOS are implemented both in software and in hardware.…”

Section: Related Workmentioning

confidence: 99%

Schedulability Criteria and Analysis for Dynamic and Flexible Resource Management

Lichte

Oberthür

2008

Electronic Notes in Theoretical Computer Science

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The Flexible Resource Manager (FRM) is a dynamic resource management approach that allows a better utilization of the available resources. However, it necessitates an atomic reconfiguration process that must not violate hard timing constraints. This paper exploits the deadline assignment rule of the Total Bandwidth Server (TBS) to schedule reconfiguration, and it formally shows that there exists a minimum task period for which atomicity and schedulability can be guaranteed. With this solution, real-time system engineers have the tools at hand to design their tasks to exploit the benefits of the FRM with hard real-time constraints. 3

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Section: Related Workmentioning

confidence: 99%

Schedulability Criteria and Analysis for Dynamic and Flexible Resource Management

Lichte

Oberthür

2008

Electronic Notes in Theoretical Computer Science

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“…In particular, in [10] a new scheduling algorithm for periodic realtime HW tasks is described, which assumes a system architecture based on the 1D model similar to the one we described and takes reconfiguration overhead into account. However, to the best of our knowledge, the only work on combined scheduling of SW/HW tasks that has been published outside of [25,26] is [11]. In [11], the design of a reconfigurable OS is described where OS services can migrate between SW and HW.…”

Section: Related Workmentioning

confidence: 99%

“…However, to the best of our knowledge, the only work on combined scheduling of SW/HW tasks that has been published outside of [25,26] is [11]. In [11], the design of a reconfigurable OS is described where OS services can migrate between SW and HW. Both FPGA reconfiguration time and the time required to migrate the state data are accounted for in the analysis.…”

Section: Related Workmentioning

confidence: 99%

“…Such hybrid platforms are especially suitable for the development of real-time embedded systems because they combine the flexibility of software execution on a CPU with timing predictability and high performance of hardware execution on a Partially Reconfigurable Device (PRD). Even if the theory of realtime reconfigurable computing is still at an early stage [9,10,12,11,26], progresses have been made recently in the development of operating systems for reconfigurable devices (OSRD) [22,30,31]. OSRDs will enable a highly dynamic use of partially reconfigurable FPGAs, running mul- * This material is based upon work supported by NSF under Awards…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Hardware-Software Architecture for Reconfigurable Real-Time Systems

Pellizzoni

Caccamo

2008

2008 IEEE Real-Time and Embedded Technology and Applications Symposium

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“…The task scheduling problem is considered NP-complete [4] and several heuristics were developed to better meet a good scheduling with little overhead, like the distinct approaches used by [5], [6] for heterogeneous PUs. However, just very recently, some techniques are starting to be directly applied to a CPU-Co-processors execution platform.…”

Section: Introductionmentioning

confidence: 99%

An Effective Dynamic Scheduling Runtime and Tuning System for Heterogeneous Multi and Many-Core Desktop Platforms

Binotto

Pereira

Kuijper

et al. 2011

2011 IEEE International Conference on High Performance Computing and Communications

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A personal computer can be considered as a one-node heterogeneous cluster that simultaneously processes several application tasks. It can be composed by, for example, asymmetric CPU and GPUs. This way, a high-performance heterogeneous platform is built on a desktop for data intensive engineering calculations. In our perspective, a workload distribution over the Processing Units (PUs) plays a key role in such systems. This issue presents challenges since the cost of a task at a PU is non-deterministic and can be affected by parameters not known a priori. This paper presents a context-aware runtime and tuning system based on a compromise between reducing the execution time of engineering applications -due to appropriate dynamic scheduling -and the cost of computing such scheduling applied on a platform composed of CPU and GPUs. Results obtained in experimental case studies are encouraging and a performance gain of 21.77% was achieved in comparison to the static assignment of all tasks to the GPU.

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Deterministic Mechanism for Run-time Reconfiguration Activities in an RTOS

Cited by 13 publications

References 7 publications

Schedulability Criteria and Analysis for Dynamic and Flexible Resource Management

Schedulability Criteria and Analysis for Dynamic and Flexible Resource Management

Hybrid Hardware-Software Architecture for Reconfigurable Real-Time Systems

An Effective Dynamic Scheduling Runtime and Tuning System for Heterogeneous Multi and Many-Core Desktop Platforms

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