Cooperative Application/OS DRAM Fault Recovery
Cooperative Application/OS DRAM Fault Recovery
复制标题
协作应用程序/操作系统 DRAM 故障恢复
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
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通讯作者：
R. Brightwell
中科院分区：
文献类型：
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作者：
P. Bridges;M. Hoemmen;Kurt B. Ferreira;M. Heroux;Philip Soltero;R. Brightwell
Exascale系统将对应用程序和系统软件提出相当大的容错挑战。预计这些系统每天会遭受几次硬错误和软错误。不幸的是，许多使用中的容错方法，如回滚恢复，是不适合许多预期的错误，例如DRAM故障。因此，应用程序将需要解决这些弹性挑战，以更有效地利用未来的系统。在本文中，我们描述了一个跨层的应用程序/操作系统框架来处理未纠正的内存错误的工作。我们说明了使用这个框架，通过其集成与一个新的容错迭代求解器内的Trilinos库，并提出了初步的收敛结果。
Exascale systems will present considerable fault-tolerance challenges to applications and system software. These systems are expected to suffer several hard and soft errors per day. Unfortunately, many fault-tolerance methods in use, such as rollback recovery, are unsuitable for many expected errors, for example DRAM failures. As a result, applications will need to address these resilience challenges to more effectively utilize future systems. In this paper, we describe work on a cross-layer application / OS framework to handle uncorrected memory errors. We illustrate the use of this framework through its integration with a new fault-tolerant iterative solver within the Trilinos library, and present initial convergence results.