See SelectTypeParameters=LLN (Least Loaded Node) On May 8, 2014 11:25:36 AM PDT, Atom Powers <[email protected]> wrote: >Not necessarily. On any recent CPU with "turbo" or any CPU with >Hyperthreading you can experience a performance impact when more than >about >half the cores are in use. More use also means more heat which, on some >system, will cause the CPU to clock down. > > >On Thu, May 8, 2014 at 11:18 AM, Lloyd Brown <[email protected]> >wrote: > >> >> Doesn't this imply that somebody is using more resources than they're >> supposed to? Essentially this shouldn't occur unless there is >resource >> contention on the node. Am I missing something? >> >> Lloyd Brown >> Systems Administrator >> Fulton Supercomputing Lab >> Brigham Young University >> http://marylou.byu.edu >> >> On 05/08/2014 12:14 PM, Atom Powers wrote: >> > The specific issue that I want to address is: >> > "My job runs slower when there are other jobs on the same node and >some >> > of the nodes are unused, why doesn't my job run on the unused >nodes?" >> > > > >-- >Perfection is just a word I use occasionally with mustard. >--Atom Powers--
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