Alexandre Laurent

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Dynamic Voltage and Frequency Scaling (DVFS) has appeared as one of the most important techniques to reduce energy consumption in computing systems. The main idea exploited by DVFS controllers is to reduce the CPU frequency in memory-bound phases, usually significantly reducing the energy consumption. However, depending on the CPU model, transitions between(More)
Several solutions are considered to reduce energy consumption of computers. Among them, Dynamic Voltage and Frequency Scaling (DVFS) emerged as an effective way to enhance energy efficiency by adapting processor frequency to workloads. We propose Forest, a new DVFS controller designed to efficiently exploit the recent technologies introduced in processors.(More)
Engineers obsessed in the past with augmenting application performance. Nowadays, as the energy price tag and ecological concerns rise, administrators and engineers are considering the energy consumption metric as new optimization criteria. In order to decrease energy consumption, one known solution is Dynamic Voltage Frequency Scaling (DVFS). DVFS allows(More)
BACKGROUND Cancer relapses may be useful to predict the risk of death. To take into account relapse information, the Landmark approach is popular. As an alternative, we propose the joint frailty model for a recurrent event and a terminal event to derive dynamic predictions of the risk of death. METHODS The proposed prediction settings can account for(More)
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