#1850: Severe performance problem on Stampede -------------------------+-------------------------------------------------- Reporter: hinder | Owner: Type: defect | Status: review Priority: major | Milestone: Component: SimFactory | Version: development version Resolution: | Keywords: -------------------------+--------------------------------------------------
Comment (by knarf):
Replying to [comment:24 dradice@…]:
It seems to me that activating SystemTopology should be the default
behavior, because running on a workstation is not a common use case.
I would disagree with that. Running on a workstation is probably one of the the first things new users do, and this has to work out of the box at reasonable speed. For production, of course, that is not that common.
Is there a reason why activating SystemTopology couldn't also work correctly on a workstation? Or why not using it would be that bad on a supercomputer (assuming KMP_AFFINITY isn't set)?
I am not against using SystemTopology, or using it as default, but Cactus/simfactory should also make reasonable choices without it, on both regular workstations and supercomputers.