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The negative impact of the popular energy management technique Dynamic Voltage and Frequency Scaling (DVFS) on the reliability of real-time embedded systems, in terms of increased transient fault rates, has been recently identified. As a result, recent research literature includes a number of solutions within the so-called Reliability-Aware Power Management (RA-PM) framework, where the aim is to preserve...
In this paper, we present an energy-aware standby-sparing technique for periodic real-time applications. A standby-sparing system consists of a primary processor where the application tasks are executed using Dynamic Voltage Scaling (DVS) to save energy, and a spare processor where the backup tasks are executed at maximum voltage/frequency, should there be a need. In our framework, we employ Earliest-Deadline-First...
DVFS remains an important energy management technique for embedded systems. However, its negative impact on transient fault rates has been recently shown. In this paper, we propose the Generalized Shared Recovery (GSHR) technique to optimally use the DVFS technique in order to achieve a given reliability goal for real-time embedded applications. Our technique determines the optimal number of recoveries...
Recently, the negative effect of the popular power management technique Dynamic Voltage and Frequency Scaling (DVFS) on the system reliability has been identified. As a result, various reliability-aware power management (RAPM) schemes have been studied for uniprocessor real-time systems. In this paper, we investigate global scheduling-based RAPM (G-RAPM) schemes for a set of frame-based real-time...
While Dynamic Voltage Scaling (DVS) remains as a popular energy management technique for real-time embedded applications, recent research has identified significant and negative impact of voltage scaling on system reliability. For this reason, a number of reliability-aware power management (RA-PM) schemes were recently proposed to preserve the system reliability when DVS is used. In this paper, we...
Reliability-aware power management (RAPM) schemes have been recently studied to save energy while preserving system reliability. The existing RAPM schemes, however, provision for worst-case execution scenarios and are rather conservative. In this paper, by exploiting the probabilistic execution time information of real-time tasks, we develop an optimistic RAPM scheme. Instead of scheduling a full...
Power management has become a very important research area and various approaches have been proposed. As an energy-efficient architecture, chip multiprocessor (CMP) has been widely adopted by chip manufacturers. In this paper, we study power management schemes for real-time systems on block-partitioned multicore platforms, where the processing cores are grouped into different blocks and cores on one...
Considering the impact of the popular energy management technique Dynamic Voltage and Frequency Scaling (DVFS) on system reliability, the Reliability-Aware Power Management (RA-PM) problem has been recently explored to save energy while maintaining system reliability. In this work, focusing on Rate Monotonic Scheduling (RMS) policy, we study static RA-PM schemes for periodic realtime tasks. After...
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