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Energy-efficient architecture for advanced video memory | IEEE Conference Publication | IEEE Xplore

Energy-efficient architecture for advanced video memory


Abstract:

An energy-efficient hybrid on-chip video memory architecture (enHyV) is presented that combines private and shared memories using a hybrid design (i.e., SRAM and emerging...Show More

Abstract:

An energy-efficient hybrid on-chip video memory architecture (enHyV) is presented that combines private and shared memories using a hybrid design (i.e., SRAM and emerging STT-RAM). The key is to leverage the application-specific properties to efficiently design and manage the enHyV. To increase STT-RAM lifetime, we propose a data management technique that alleviates the bit-toggling write occurrences. An adaptive power management is also proposed for static-energy savings. Experimental results illustrate that enHyV reduces on-chip static memory energy compared to SRAM-only version of enHyV and to state-of-art AMBER hybrid video memory [9] by 66%-75% and 55%-76%, respectively. Furthermore, negligible external memory energy consumption is required for reference frames communication (98% lower than state-of-the-art Level C+ technique [18]). Our data management significantly improves the enHyV STT-RAM lifetime, achieving 0.83 of normalized lifetime (near to the optimal case). Our hybrid memory design and management incur low overhead in terms of latency and dynamic energy.
Date of Conference: 02-06 November 2014
Date Added to IEEE Xplore: 08 January 2015
Electronic ISBN:978-1-4799-6278-5

ISSN Information:

Conference Location: San Jose, CA, USA

References

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