ELASTIN: Achieving Stagnation-Free Intermittent Computation with Boundary-Free Adaptive Execution
| dc.contributor.author | Choi, Jongouk | en |
| dc.contributor.author | Joe, Hyunwoo | en |
| dc.contributor.author | Kim, Yongjoo | en |
| dc.contributor.author | Jung, Changhee | en |
| dc.contributor.department | Computer Science | en |
| dc.date.accessioned | 2019-07-15T16:16:28Z | en |
| dc.date.available | 2019-07-15T16:16:28Z | en |
| dc.date.issued | 2019-07-15 | en |
| dc.description.abstract | This paper presents ELASTIN, a stagnation-free intermittent computing system for energy-harvesting devices that ensures forward progress in the presence of frequent power outages without partitioning program into recoverable regions or tasks. ELASTIN leverages both timer-based checkpointing of volatile registers and copy-on-write mappings of nonvolatile memory pages to restore them in the wake of power failure. During each checkpoint interval, ELASTIN tracks memory writes on a per-page basis and backs up the original page using custom software-controlled memory protection without MMU or TLB. When a new interval starts at each timer expiration, ELASTIN clears the write permission of all the pages written during the previous interval and checkpoints all registers including a program counter as a recovery point. In particular, ELASTIN dynamically reconfigures both the checkpoint interval and the page size to achieve stagnation-free intermittent computation and maximize forward progress across power outages. The experiments on TI’s MSP430 board with energy harvesting traces show that ELASTIN outperforms the state-of-the-art scheme by 3.5X on average (up to orders of magnitude speedup) and guarantees forward progress. | en |
| dc.description.sponsorship | At Virginia Tech, this work was supported by NSF grants 1750503 (CAREER Award) and 1814430, and by Google/AMD Faculty Research Awards. At ETRI, this work was supported by the ICT R&D program MSIT/IITP 2017-0-00051. | en |
| dc.identifier.trnumber | TR-19-01 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/91451 | en |
| dc.language.iso | en | en |
| dc.publisher | Department of Computer Science, Virginia Polytechnic Institute & State University | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject | Computer Systems | en |
| dc.subject | Modeling and Simulation | en |
| dc.title | ELASTIN: Achieving Stagnation-Free Intermittent Computation with Boundary-Free Adaptive Execution | en |
| dc.type | Technical report | en |
| dc.type.dcmitype | Text | en |