On 05/03/2013 04:13 PM, Brice Goglin wrote: > If I remember correctly, NVIDIA or AMD proprietary drivers cannot use > the kernel sysfs API because it's GPL-only. They can't create devices in > sysfs, that's why hwloc doesn't get any GPU OS device with NVIDIA. >
That sounds right and makes sense. > card* and controlD64 is what we get with opensource DRM drivers that use > the sysfs/drm kernel API. But I don't expect people to do much with them > as long as there's no way for an application to know if it's using card0 > or card1. That's why there's a NVIDIA specific plugin using NVCtrl: you > give a display such as :0.0, it returns the locality of the PCI device > running it. > > Brice Can you give me an example of something that should show the display device when the Nvidia driver is loaded? I think I properly configured hwloc: ----------------------------------------------------------------------------- Hwloc optional build support status (more details can be found above): Probe / display I/O devices: PCI GL Graphical output (Cairo): yes XML input / output: full libnuma memory support: yes Plugin support: no ----------------------------------------------------------------------------- thanks, --Guy
