3rd 3DDRESD: OSyRIS

Operating System Support for Core Management in a Dynamic Reconfigurable Environment D ynamic R econfigurability in E mbedded S ystems D esign Ivan Beretta: ivan.beretta@dresd.org

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reconfigurable devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Some Definitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Classification of reconfigurable architectures (1 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Classification of reconfigurable architectures (2 of 2) ,[object Object],[object Object],[object Object],[object Object]

Reconfiguration challenges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why do applications ask for IP-Cores? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Software applications and reconfiguration management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aims ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Related works ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Specific OSs for dynamic reconfiguration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[1] Wigley and Kearney: The management of applications for reconfigurable computing using an operating system . In Seventh Asia-Pacific Computer Systems Architectures Conference (ACSAC2002), eds. F. Lai and J. Morris, Melbourne, Australia, 2002. ACS. [2] Wigley et al.: ReConfigME: a detailed implementation of an operating system for reconfigurable computing . Parallel and Distributed Processing Symposium, 2006. IPDPS 2006. 20th International, April 2006. [3] Steiger et al.: Operating systems for reconfigurable embedded platforms: online scheduling of real-time tasks . Transactions on Computers, 53(11):1393–1407, November 2004.

Operating systems based on Linux ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[4] Donato et al.: Operating system support for dynamically reconfigurable SoC architectures . SOC Conference, 2005. Proceedings. IEEE International, pages 233–238, September 2005. [5] Williams and Bergmann: Embedded linux as a platform for dynamically self-reconfiguring systems-on-chip . In Proceedings of the International Conference on Engineering of Reconfigurable Systems and Algorithms, ed. T. P. Plaks, pages 163–169. CSREA Press, June 2004. [6] So and Brodersen: Improving usability of FPGA-based reconfigurable computers through operating system support . Field Programmable Logic and Applications, 2006. FPL ’06. International Conference on, pages 1–6, 2006. [7] Donato, A., Ferrandi, F., Redaelli, M., Santambrogio, M. D., and Sciuto, D.: Exploiting partial dynamic reconfiguration for SOC design of complex application on FPGA platform . Ricardo Augusto da Luz Reis, Adam Osseiran, Hans-Jorg Pfleiderer (Eds.): VLSI-SoC: From System To Sylicon, Springer 2007, pp.:87-109

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Caronte flow HW: Hardware RHW: Reconfigurable HW SW: Software

The software side of the Caronte flow ,[object Object],[object Object],[object Object],[object Object]

The software side of the Caronte flow ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reconfiguration Support ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

IP-Core devices access ,[object Object],[object Object]

Implementation of reconfiguration support ,[object Object],[object Object],[object Object],[object Object],[object Object]

Reconfigurable Process ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Centralized Manager ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A further level of abstraction

Selection of hardware/software implementations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Module caching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Preemptive module allocation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Static Part IP-Core 1 IP-Core 2 IP-Core 3 IP-Core 4 Static Part IP-Core 2 IP-Core 3 IP-Core 1 Static Part IP-Core 2 IP-Core 3 IP-Core 1 IP-Core 4

Preemptive allocation rules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Static Part IP-Core 1 IP-Core 2 IP-Core 3 IP-Core 4 Static Part IP-Core 1 IP-Core 2 IP-Core 3

Validation Results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic reconfiguration support (1 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic reconfiguration support (2 of 2) Throughput enhancement of ~ 2x compared to [7] [7] Donato, A., Ferrandi, F., Redaelli, M., Santambrogio, M. D., and Sciuto, D.: Exploiting partial dynamic reconfiguration for SOC design of complex application on FPGA platform . Ricardo Augusto da Luz Reis, Adam Osseiran, Hans-Jorg Pfleiderer (Eds.): VLSI-SoC: From System To Sylicon, Springer 2007, pp.:87-109

First case study: simple logic application (1 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

First case study: simple logic application (2 of 2)

Second case study: cryptography application (1 of 2) ,[object Object],[object Object],[object Object],[object Object]

Second case study: cryptography application (2 of 2) ,[object Object],[object Object],AES IP-Core  DES IP-Core  Static part  Throughput w/ caching = 246 kB/s Throughput w/ caching = 436 kB/s

Evaluation of IP-Core preemption (1 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Evaluation of IP-Core preemption (2 of 2) [3] Steiger et al.: Operating systems for reconfigurable embedded platforms: online scheduling of real-time tasks . Transactions on Computers, 53(11):1393–1407, November 2004.

Concluding Remarks (1 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Concluding Remarks (2 of 2) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Future works ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

General Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

¿ Questions ? ,[object Object]

3rd 3DDRESD: OSyRIS

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