Brice Goglin, le Sun 27 Sep 2009 14:18:54 +0200, a écrit : > Samuel Thibault wrote: > >> but shouldn't it return the restricted topology (or have a method that > >> returns the restricted topology). > >> > > > > It should already be the default. To get the whole system, see lstopo > > --help: --whole-system > > Maybe he's referring to when the process launcher does a > sched_setaffinity/numatcl to restrict this process, as opposed to > administrator-wide restriction with linux cpusets or so. We could add > another topology flag for such restrictions.
Ah, right. > > I've wondered how to implement topology changes indeed. AIX does have a > > SIGRECONFIG signal for this, I don't know any support from other OSes. > > Maybe there's a inotify way to get such changes in Linux. There is usually no inotify support for virtual files. I've just tested that it doesn't work for /sys/bus/usb/devices for instance. We'll have to ask kernel developers for it. Samuel
