Self-Adaptation for Availability in CPU-FPGA Systems Under Soft Errors
Self-Adaptation for Availability in CPU-FPGA Systems Under Soft Errors
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DOI：
10.1109/ahs.2019.000-6
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发表时间：
2019-07
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影响因子：
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通讯作者：
Mischa Möstl;A. Dörflinger;Mark Albers;H. Michalik;R. Ernst
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作者：
Mischa Möstl;A. Dörflinger;Mark Albers;H. Michalik;R. Ernst
我们引入了基于模型的可靠性估计，以在不同环境条件下暴露于软错误的 CPU-FPGA 系统中保持应用程序可用性。该估计被用作系统内方法来为不断变化的辐射条件选择合适的配置。这使得系统能够自主调整其配置，以在可靠性和性能之间取得平衡。这种自适应超出了最先进的水平，其中适应依赖于预先计划的反应模式变化。通过自主评估新配置，我们的自适应过程能够通过选择具有当前环境条件所需应用可靠性的配置来提高可用性。
We introduce a model-based reliability estimation to preserve application availability in CPU-FPGA systems exposed to soft errors under varying environment conditions. The estimation is used as an in-system method to select a suitable configuration for changing radiation conditions. This allows systems to autonomously adapt their configuration in order to balance between reliability and performance. Such a self-adaptation goes beyond the state-of-the-art, where adaptation relies on preplanned reactive mode changes. By autonomously evaluating new configurations, our self-adaptation process is capable of increasing the availability by selecting the configuration with the desired application reliabilities for the current environment conditions.