Customizing Reconfigurable On-Chip Crossbar Scheduler

Hur, Jae Young; Stefanov, Todor; Wong, Stephan; Vassiliadis, S.

doi:10.1109/asap.2007.4429982

Cited by 6 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CPS performs better and provides lower cost for an on-demand topology, compared to reference schedulers [21]. In the CPS scheme, an arbitration is performed in a simple round-robin fashion and the differently utilized traffic bandwidth is not considered.…”

Section: Weighted Round Robin Schedulermentioning

confidence: 99%

“…The round-robin custom parallel scheduler (CPS) scheme is presented in [21]. The CPS is similar to the FPS in that the scheduler consists of arbiter arrays.…”

Section: Round Robin Custom Schedulermentioning

confidence: 99%

“…The task graph of the six-node MPEG4 specification was taken from [23]. The task graphs of the MJPEG and Wavelet applications were taken from [21]. When the token size is 1-word, our WCPS provides better service rate by factor of 3 compared to SQS and 2 compared to FPS.…”

Section: Mjpeg Examplementioning

confidence: 99%

“…In addition, our weighted round-robin scheduler can be adapted to the traffic requirements known at design time. Logical topologies with different traffic load distribution in practical applications [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…• Communication patterns of different applications represent different logical topologies. Figure 2 depicts task graphs of realistic applications taken from [21][22][23][24], where numbers on links represent the traffic loads (or required bandwidth). The numbers between braces in the depicted topologies indicate the number of nodes and the number of required links.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Design Trade-offs in Customized On-chip Crossbar Schedulers

Hur

Wong

Stefanov

2008

J Sign Process Syst Sign Image Video Technol

Self Cite

View full text Add to dashboard Cite

In this paper, we present a design and an analysis of customized crossbar schedulers for reconfigurable on-chip crossbar networks. In order to alleviate the scalability problem in a conventional crossbar network, we propose adaptive schedulers on customized crossbar ports. Specifically, we present a scheduler with a weighted round robin arbitration scheme that takes into account the bandwidth requirements of specific applications. In addition, we propose the sharing of schedulers among multiple ports in order to reduce the implementation cost. The proposed schedulers arbitrate on-demand (at design time) interconnects and adhere to the link bandwidth requirements, where physical topologies are identical to logical topologies for given applications. Considering conventional crossbar schedulers as reference designs, a comparative performance analysis is conducted. The hardware scheduler modules are parameterized. Experiments with practical applications show that our custom schedulers occupy up to 83% less area, and maintain better performance compared to the reference schedulers.

show abstract

Section: Weighted Round Robin Schedulermentioning

confidence: 99%

“…The round-robin custom parallel scheduler (CPS) scheme is presented in [21]. The CPS is similar to the FPS in that the scheduler consists of arbiter arrays.…”

Section: Round Robin Custom Schedulermentioning

confidence: 99%

Section: Mjpeg Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design Trade-offs in Customized On-chip Crossbar Schedulers

Hur

Wong

Stefanov

2008

J Sign Process Syst Sign Image Video Technol

Self Cite

View full text Add to dashboard Cite

show abstract

A unified execution model for multiple computation models of streaming applications on a composable MPSoC

Nejad

Molnos

Goossens

2013

Journal of Systems Architecture

View full text Add to dashboard Cite

Customisation of on-chip network interconnects and experiments in field-programmable gate arrays

Hur

Stefanov

Wong

et al. 2012

IET Comput. Digit. Tech.

View full text Add to dashboard Cite

Conventional rigid and generalpurpose on-chip networks occupy significant logic and wire resources in fieldprogrammable gate arrays (FPGAs). To reduce the area cost, the authors present a topology customisation technique, using which on-demand network interconnects are systematically established in reconfigurable hardware. First, the authors present a design of a customised crossbar switch, where physical topologies are identical to logical topologies for a given application. A multiprocessor system combined with the presented custom crossbar has been designed with the ESPAM design environment and prototyped in the FPGA device. Experiments with practical applications show that the custom crossbar occupies significantly less area, maintains higher performance and reduces the power consumption, when compared with the general-purpose crossbars. In addition, the authors present that configuration performance and cost can be improved by reducing the functional area cost in FPGAs. Second, a customisation technique for the circuit-switched network-on-chip (NoC) is presented, where only necessary half-duplex interconnects are established for a given application mapping. The presented customised NoC is implemented in FPGA and results indicate that the area is reduced by 66%, when compared with the general-purpose networks.

show abstract

Customizing Reconfigurable On-Chip Crossbar Scheduler

Abstract: We present a design of a customized crossbar scheduler

Cited by 6 publications

References 24 publications

Design Trade-offs in Customized On-chip Crossbar Schedulers

Design Trade-offs in Customized On-chip Crossbar Schedulers

A unified execution model for multiple computation models of streaming applications on a composable MPSoC

Customisation of on-chip network interconnects and experiments in field-programmable gate arrays

Contact Info

Product

Resources

About