Process fault tolerance: Semantics, design and applications for high performance computing

doi:10.1177/1094342005056137

2005-11-01

PRE

Jelena Pješivac–Grbović

Dongarra, JJ

DOI：10.1177/1094342005056137

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摘要

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With increasing numbers of processors on current machines, the probability for node or link failures is also increasing. Therefore, application-level fault tolerance is becoming more of an important issue for both end-users and the institutions running the machines. In this paper we present the semantics of a fault-tolerant version of the message passing interface (MPI), the de-facto standard for communication in scientific applications, which gives applications the possibility to recover from a node or link error and continue execution in a well-defined way. We present the architecture of fault-tolerant MPI, an implementation of MPI using the semantics presented above as well as benchmark results with various applications. An example of a fault-tolerant parallel equation solver, performance results as well as the time for recovering from a process failure are furthermore detailed.

Keyword:

parallel computing

fault tolerance

MPI and message passing