Infrastructure for design and management of relocatable tasks in a heterogeneous reconfigurable system-on-chip

Mignolet, J.-Y.; Nollet, V.; Coene, Paul; Verkest, D.; Vernalde, Serge; Lauwereins, Rudy

doi:10.1109/date.2003.1253733

Cited by 69 publications

(48 citation statements)

References 3 publications

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“…The idea of improving an RTOS has already appeared to be able to manage both HW and SW tasks. First proofs of concepts have been exhibited in [6] and [5]. In [5], the RTOS is dedicated to the management of HW tasks.…”

Section: Related Workmentioning

confidence: 99%

Specification and OS-based implementation of self-adaptive, hardware/software embedded systems

Eustache

Diguet

2008

Proceedings of the 6th IEEE/ACM/IFIP International Conference on Hardware/Software Codesign and System Synthesis

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This paper presents our solution for specifying and implementing self-adaptivness within an OS-based and reconfigurable embedded system according to objectives such as quality of service (QoS), performance or power consumption. More precisely, we detail our approach to separate, at runtime, application-specific decisions and hardware/software implementation decisions at system level. The first ones are related to the control of the efficiency of applications, they are specified in Local Configuration Managers (LCM) based on the knowledge of application engineers. The second ones are generic and address the choice between various hardware and software implementations according to observations of the gap between online measurements and objectives set by the user, these decisions are implemented in the Global Configuration Manager (GCM) as an adaptive close-loop model. We have designed a video tracking application on an FPGA to demonstrate the effectiveness of our solution, results are given for a system built around a NIOS soft-core with µCOS II RTOS and new services for managing hardware and software tasks transparently.

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Section: Related Workmentioning

confidence: 99%

Specification and OS-based implementation of self-adaptive, hardware/software embedded systems

Eustache

Diguet

2008

Proceedings of the 6th IEEE/ACM/IFIP International Conference on Hardware/Software Codesign and System Synthesis

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“…However, the system does not employ bitstream relocation because of the irregular location of combined BlockRAM (BRAM) and multiplier columns in the reconfigurable regions. Other work considers a reconfigurable system-onchip for a portable media platform that can move tasks from software into reconfigurable hardware [9]. This system cannot relocate tasks on the FPGA and requires a bitstream for every possible task location.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Relocatability of Partial Bitstreams for Run-Time Reconfiguration

Becker

Luk

Cheung

2007

15th Annual IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM 2007)

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This paper introduces a method that enhances the relocatability of partial bitstreams for FPGA run-time reconfiguration. Reconfigurable applications usually employ partial bitstreams which are specific to one target region on the FPGA. Previously, techniques have been proposed that allow relocation between identical regions on the FPGA. However, as FPGAs are becoming increasingly heterogeneous, this approach is often too restrictive. We introduce a method that circumvents the problem of having to find fully identical regions based on compatible subsets of resources, enabling flexible placement of relocatable modules. In a software defined radio prototype with two reconfigurable regions, the number of partial bitstreams is reduced by 50% and the compile time is shortened by 43%.

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“…In order to overcome the architectural differences between heterogeneous PEs, tasks can only migrate at pre-defined execution points in the code (further denoted as migration points) [10]. How to handle task state when migrating between a regular PE and a RH tile is detailed in [14]. Another major issue in run-time task migration is assuring communication consistency during the migration process.…”

Section: Run-time Task Migrationmentioning

confidence: 99%

Centralized Run-Time Resource Management in a Network-on-Chip Containing Reconfigurable Hardware Tiles

Nollet

Marescaux

Avasare

et al.

Design, Automation and Test in Europe

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Infrastructure for design and management of relocatable tasks in a heterogeneous reconfigurable system-on-chip

Cited by 69 publications

References 3 publications

Specification and OS-based implementation of self-adaptive, hardware/software embedded systems

Specification and OS-based implementation of self-adaptive, hardware/software embedded systems

Enhancing Relocatability of Partial Bitstreams for Run-Time Reconfiguration

Centralized Run-Time Resource Management in a Network-on-Chip Containing Reconfigurable Hardware Tiles

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