DragonFly On-Line Manual Pages

hwlocality_gl(3)           Hardware Locality (hwloc)          hwlocality_gl(3)

NAME
       hwlocality_gl - Interoperability with OpenGL displays

   Functions
       static hwloc_obj_t hwloc_gl_get_display_osdev_by_port_device
           (hwloc_topology_t topology, unsigned port, unsigned device)
       static hwloc_obj_t hwloc_gl_get_display_osdev_by_name (hwloc_topology_t
           topology, const char *name)
       static int hwloc_gl_get_display_by_osdev (hwloc_topology_t topology,
           hwloc_obj_t osdev, unsigned *port, unsigned *device)

Detailed Description
       This interface offers ways to retrieve topology information about
       OpenGL displays.

       Only the NVIDIA display locality information is currently available,
       using the NV-CONTROL X11 extension and the NVCtrl library.

Function Documentation
   static int hwloc_gl_get_display_by_osdev (hwloc_topology_t topology,
       hwloc_obj_t osdev, unsigned * port, unsigned * device) [inline],
       [static]
       Get the OpenGL display port and device corresponding to the given hwloc
       OS object. Return the OpenGL display port (server) in port and device
       (screen) in screen that correspond to the given hwloc OS device object.
       Return -1 if there is none.

       The topology topology does not necessarily have to match the current
       machine. For instance the topology may be an XML import of a remote
       host. I/O devices detection and the GL component must be enabled in the
       topology.

   static hwloc_obj_t hwloc_gl_get_display_osdev_by_name (hwloc_topology_t
       topology, const char * name) [inline],  [static]
       Get the hwloc OS device object corresponding to the OpenGL display
       given by name. Return the OS device object describing the OpenGL
       display whose name is name, built as ':port.device' such as ':0.0' .
       Return NULL if there is none.

       The topology topology does not necessarily have to match the current
       machine. For instance the topology may be an XML import of a remote
       host. I/O devices detection and the GL component must be enabled in the
       topology.

       Note:
           The corresponding PCI device object can be obtained by looking at
           the OS device parent object.

   static hwloc_obj_t hwloc_gl_get_display_osdev_by_port_device
       (hwloc_topology_t topology, unsigned port, unsigned device) [inline],
       [static]
       Get the hwloc OS device object corresponding to the OpenGL display
       given by port and device index. Return the OS device object describing
       the OpenGL display whose port (server) is port and device (screen) is
       device. Return NULL if there is none.

       The topology topology does not necessarily have to match the current
       machine. For instance the topology may be an XML import of a remote
       host. I/O devices detection and the GL component must be enabled in the
       topology.

       Note:
           The corresponding PCI device object can be obtained by looking at
           the OS device parent object.

Author
       Generated automatically by Doxygen for Hardware Locality (hwloc) from
       the source code.

Version 1.11.1                  Thu Oct 15 2015               hwlocality_gl(3)