Characterizing parallel file-access patterns on a large-scale multiprocessor
- Best, Michael L.
- Jan 1, 1995.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Kotz, David, Nieuwejaar, Nils, Ellis, Carla, and Purakayastha, A.
- hdl.handle.net , Connect to this object online.
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- Unclassified, Unlimited, Publicly available.
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- High-performance parallel file systems are needed to satisfy tremendous I/O requirements of parallel scientific applications. The design of such high-performance parallel file systems depends on a comprehensive understanding of the expected workload, but so far there have been very few usage studies of multiprocessor file systems. This paper is part of the CHARISMA project, which intends to fill this void by measuring real file-system workloads on various production parallel machines. In particular, we present results from the CM-5 at the National Center for Supercomputing Applications. Our results are unique because we collect information about nearly every individual I/O request from the mix of jobs running on the machine. Analysis of the traces leads to various recommendations for parallel file-system design.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19960003358.
Accession ID: 96N13367.
IPPS 1995; United States.
- No Copyright.
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