[ET Trac] [Einstein Toolkit] #1850: Severe performance problem on Stampede
Einstein Toolkit
trac-noreply at einsteintoolkit.org
Tue Dec 15 11:41:24 CST 2015
#1850: Severe performance problem on Stampede
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Reporter: hinder | Owner:
Type: defect | Status: confirmed
Priority: major | Milestone:
Component: SimFactory | Version: development version
Resolution: | Keywords:
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Comment (by hinder):
The problem is that all existing parameter files would need to be modified
to include activation of SystemTopology, otherwise they will run very
slowly. There is no warning about this; using the same parameter file
that worked before, you just get really bad performance. People probably
also have their own thornlists which don't activate SystemTopology. I
think the best option would be to correct the affinity settings on
stampede, so that they don't cause the code to be slow. Is it clear that
they are wrong?
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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1850#comment:9>
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