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International Journal of High Performance Computing Applications
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The Lam/Mpi Checkpoint/Restart Framework: System-Initiated Checkpointing

Sriram Sankaran

Jeffrey M. Squyres

Brian Barrett

Vishal Sahay

Andrew Lumsdaine

OPEN SYSTEMS LABORATORY, INDIANA UNIVERSITY BLOOMINGTON, IN 47404, USA JSQUYRES{at}OPEN-MPI.ORG

Jason Duell

Paul Hargrove

Eric Roman

LAWRENCE BERKELEY NATIONAL LABORATORY BERKELEY, CA 94720, USA

As high performance clusters continue to grow in size and popularity, issues of fault tolerance and reliability are becoming limiting factors on application scalability. To address these issues, we present the design and implementation of a system for providing coordinated checkpointing and rollback recovery for MPI-based parallel applications. Our approach integrates the Berkeley Lab BLCR kernel-level process checkpoint system with the LAM implementation of MPI through a defined checkpoint/restart interface. Checkpointing is transparent to the application, allowing the system to be used for cluster maintenance and scheduling reasons as well as for fault tolerance. Experimental results show negligible communication performance impact due to the incorporation of the checkpoint support capabilities into LAM/MPI.

Key Words: Parallel computing • MPI • LAM/MPI • Checkpoint / restart • Fault tolerance

International Journal of High Performance Computing Applications, Vol. 19, No. 4, 479-493 (2005)
DOI: 10.1177/1094342005056139
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