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Parallel IO on ARCHER2

descriptionPublicationkeyboard_double_arrow_right Report 15 Feb 2023 English Publisher:ZenodoFunded by:EC | EUROCC
Authors: Farr, Stephen; Henty, David;

doi: 10.5281/zenodo.7643563 , 10.5281/zenodo.7643562

Parallel IO on ARCHER2

Abstract

File input and output can become bottlenecks for parallel programs running on large numbers of processors. In this work we investigate how to increase the MPI-IO performance on ARCHER2, the UK National HPC service, using the Cray Lustre lockahead options which have not been previously investigated on this system. We then investigate the performance of ADIOS2, a more modern parallel IO library, and look at the performance of IO from a real HPC application rather than a synthetic benchmark.

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Keywords

ARCHER2, ADIOS2, Lustre, MPI, Parallel IO

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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