Benchmarking multi-cluster I/O systems
by Dorian Krause
Dear list,
I have raised the following question during yesterday's workshop at ISC:
We do operate a facility-wide centralized storage infrastructure to
which a number of different client systems (clusters) are connected.
None of the client system alone is capable of saturating the bandwidth
of the system and hence any IO500 submission using a single system will
not be representative for the performance/capabilities of the overall
I/O subsystem.
We are interested in a benchmark execution mode that would allow to
assess the center-wide performance level. One possible option would be
to allow summing up concurrently executed IOR runs that have a
sufficiently large overlap. At least for the IOR easy/hard cases that
would be a sensible number.
Thank you for your consideration.
Best regards,
Dorian Krause
--
Dorian Krause
Juelich Supercomputing Centre (JSC)
Institute for Advanced Simulation (IAS)
Phone: +49 2461 61-3631
Fax: +49 2461 61-6656
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Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt
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4 years, 9 months
Clock is ticking
by John Bent
Hello IO500 friends,
We are at a critical junction for IO500. Hopefully most of you joined this
list because you agree with the motivation behind IO500 and only a few of
you joined to laugh at its painful demise.
To the former, the committee wants to remind you all that we will unveil
the second list at ISC18. As of now, we do have a few submissions but we
fear they may be too few to be sufficiently impressive to ensure our
continued relevance. We are clearly still too new to have achieved
critical mass.
We remain committed to the community's need for an IO500. Reporting only
hero numbers as was the pre-IO500 status quo hurts us all. Collecting a
large historical data set of IO performance benefits us all.
Please help ensure the success of our effort by submitting results
yourselves and by encouraging and soliciting others to do so. The
community stands ready to provide assistance as is necessary although
please remember that the benchmark is very easy to run.
Thanks!
John (on behalf of the committee)
4 years, 9 months