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Contemporary multi-core architectures deployed inembedded systems are expected to function near the operational limits of temperature, voltage, and device wear-out. To date, most on-chip sensing systems have been designed to collect and use sensor information for these parameters locally. In this paper, a new sensing system to enhance multi-core dependability which supports both the local and global...
On-chip monitoring of environmental information, such as temperature, voltage, and error data, is becoming increasingly important. To address this need, a low-overhead architectural approach to monitor data collection and use in multicore systems is described. A key aspect of our standalone monitoring subsystem is a low-complexity, on-chip network designed to transport monitor data with multiple priority...
The use of dynamic voltage and frequency scaling (DVFS) in contemporary multicores provides significant protection from unpredictable thermal events. A side effect of DVFS can be an increased processor exposure to soft errors. To address this issue, a flexible fault prevention mechanism has been developed to selectively enable a small amount of per-core dual modular redundancy (DMR) in response to...
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