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Nonvolatile Processor Architectures: Efficient, Reliable Progress with Unstable Power
- Source :
- IEEE Micro. 36:72-83
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- Nonvolatile processors (NVPs) have integrated nonvolatile memory to preserve task-intermediate on-chip state during power emergencies. NVPs hide data backup and restoration from the executing software to provide an execution mode that will always eventually complete the current task. NVPs are emerging as a promising solution for energy-harvesting scenarios, in which the available power supply is unstable and intermittent, because of their ability to ensure that even short periods of sufficient power, on the order of tens of instructions, will result in net forward progress. This article explores the design space for an NVP across different architectures, input power sources, and policies for maximizing forward progress in a framework calibrated using measured results from a fabricated NVP. The authors propose a heterogeneous microarchitecture solution that more efficiently capitalizes on ephemeral power surpluses.
- Subjects :
- 010302 applied physics
Computer science
business.industry
02 engineering and technology
01 natural sciences
020202 computer hardware & architecture
Microarchitecture
Power (physics)
Non-volatile memory
Task (computing)
Hardware and Architecture
Backup
Embedded system
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
State (computer science)
Electrical and Electronic Engineering
business
Energy harvesting
Software
Subjects
Details
- ISSN :
- 19374143 and 02721732
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- IEEE Micro
- Accession number :
- edsair.doi...........fdb8c05ffaa4181e76475d65018ff241