HADAB: enabling fault tolerance in parallel applications running in distributed environments

Authors:
Vania Boccia;Luisa Carracciuolo;Giuliano Laccetti;Marco Lapegna;Valeria Mele
Affiliations:
Dept. of Applied Mathematics, University of Naples Federico II, Naples, Italy;Italian National Research Council, Italy;Dept. of Applied Mathematics, University of Naples Federico II, Naples, Italy;Dept. of Applied Mathematics, University of Naples Federico II, Naples, Italy;Dept. of Applied Mathematics, University of Naples Federico II, Naples, Italy
Venue:
PPAM'11 Proceedings of the 9th international conference on Parallel Processing and Applied Mathematics - Volume Part I
Year:
2011

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Abstract

The development of scientific software, reliable and efficient, in distributed computing environments, requires the identification and the analysis of issues related to the design and the deployment of algorithms for high-performance computing architectures and their integration in distributed contexts. In these environments, indeed, resources efficiency and availability can change unexpectedly because of overloading or failure i.e. of both computing nodes and interconnection network. The scenario described above, requires the design of mechanisms enabling the software to "survive" to such unexpected events by ensuring, at the same time, an effective use of the computing resources. Although many researchers are working on these problems for years, fault tolerance, for some classes of applications is an open matter still today. Here we focus on the design and the deployment of a checkpointing/migration system to enable fault tolerance in parallel applications running in distributed environments. In particular we describe details about HADAB, a new hybrid checkpointing strategy, and its deployment in a meaningful case study: the PETSc Conjugate Gradient algortithm implementation. The related testing phase has been performed on the University of Naples distributed infrastructure (S.Co.P.E. infrastructure).