#1850: Severe performance problem on Stampede -------------------------+-------------------------------------------------- Reporter: hinder | Owner: Type: defect | Status: confirmed Priority: major | Milestone: Component: SimFactory | Version: development version Resolution: | Keywords: -------------------------+--------------------------------------------------
Comment (by eschnett):
Affinity isn't "set" or "unset"; it's always set to a particular setting. We can introduce an environment variable to tell SystemTopology to do nothing; one then has to set it in the run script.
Is there a reason you want to run without SystemTopology, or you think this should be the default? The thorn is there for a reason -- not to be fancy, but because it's basically the only way to ensure things run efficiently on most systems. Everything else requires very system-specific settings that are very fragile.