Energy-Efficient Fault Tolerance in Chip Multiprocessors Using Critical Value Forwarding
(2010) The 40th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN'10)Chicago, Illinois, USA, June 28-July 1, 2010. p.121-130- Abstract
- Relentless CMOS scaling coupled with lower design tolerances is making ICs increasingly susceptible to wear-out related permanent faults and transient faults, necessitating on-chip fault tolerance in future chip microprocessors (CMPs). In this paper we introduce a new energy-efficient fault-tolerant CMP architecture known as Redundant Execution using Critical Value Forwarding (RECVF). RECVF is based on two observations: (i) forwarding critical instruction results from the leading to the trailing core enables the latter to execute faster, and (ii) this speedup can be exploited to reduce energy consumption by operating the trailing core at a lower voltage-frequency level. Our evaluation shows that RECVF consumes 37% less energy than... (More)
- Relentless CMOS scaling coupled with lower design tolerances is making ICs increasingly susceptible to wear-out related permanent faults and transient faults, necessitating on-chip fault tolerance in future chip microprocessors (CMPs). In this paper we introduce a new energy-efficient fault-tolerant CMP architecture known as Redundant Execution using Critical Value Forwarding (RECVF). RECVF is based on two observations: (i) forwarding critical instruction results from the leading to the trailing core enables the latter to execute faster, and (ii) this speedup can be exploited to reduce energy consumption by operating the trailing core at a lower voltage-frequency level. Our evaluation shows that RECVF consumes 37% less energy than conventional dual modular redundant (DMR) execution of a program. It consumes only 1.26 times the energy of a nonfault- tolerant baseline and has a performance overhead of just 1.2%. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2340849
- author
- Subramanyan, Pramod ; Singh, Virendra ; Saluja, Kewal K. and Larsson, Erik LU
- publishing date
- 2010
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 2010 IEEE/IFIP International Conference on Dependable Systems & Networks (DSN)
- pages
- 121 - 130
- conference name
- The 40th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN'10)Chicago, Illinois, USA, June 28-July 1, 2010.
- conference dates
- 0001-01-02
- external identifiers
-
- scopus:77956573875
- ISBN
- 978-1-4244-7500-1
- DOI
- 10.1109/DSN.2010.5544918
- language
- English
- LU publication?
- no
- id
- 20be3233-b30c-4c37-b258-57618f4e3d5c (old id 2340849)
- date added to LUP
- 2016-04-04 13:19:33
- date last changed
- 2022-01-30 02:38:59
@inproceedings{20be3233-b30c-4c37-b258-57618f4e3d5c, abstract = {{Relentless CMOS scaling coupled with lower design tolerances is making ICs increasingly susceptible to wear-out related permanent faults and transient faults, necessitating on-chip fault tolerance in future chip microprocessors (CMPs). In this paper we introduce a new energy-efficient fault-tolerant CMP architecture known as Redundant Execution using Critical Value Forwarding (RECVF). RECVF is based on two observations: (i) forwarding critical instruction results from the leading to the trailing core enables the latter to execute faster, and (ii) this speedup can be exploited to reduce energy consumption by operating the trailing core at a lower voltage-frequency level. Our evaluation shows that RECVF consumes 37% less energy than conventional dual modular redundant (DMR) execution of a program. It consumes only 1.26 times the energy of a nonfault- tolerant baseline and has a performance overhead of just 1.2%.}}, author = {{Subramanyan, Pramod and Singh, Virendra and Saluja, Kewal K. and Larsson, Erik}}, booktitle = {{2010 IEEE/IFIP International Conference on Dependable Systems & Networks (DSN)}}, isbn = {{978-1-4244-7500-1}}, language = {{eng}}, pages = {{121--130}}, title = {{Energy-Efficient Fault Tolerance in Chip Multiprocessors Using Critical Value Forwarding}}, url = {{http://dx.doi.org/10.1109/DSN.2010.5544918}}, doi = {{10.1109/DSN.2010.5544918}}, year = {{2010}}, }