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hwlocality_openfabrics(3)  Hardware Locality (hwloc) hwlocality_openfabrics(3)

NAME
       hwlocality_openfabrics -	Interoperability with OpenFabrics

   Functions
       static int hwloc_ibv_get_device_cpuset (hwloc_topology_t	topology,
	   struct ibv_device *ibdev, hwloc_cpuset_t set)
       static hwloc_obj_t hwloc_ibv_get_device_osdev_by_name (hwloc_topology_t
	   topology, const char	*ibname)
       static hwloc_obj_t hwloc_ibv_get_device_osdev (hwloc_topology_t
	   topology, struct ibv_device *ibdev)

Detailed Description
       This interface offers ways to retrieve topology information about
       OpenFabrics devices (InfiniBand,	Omni-Path, usNIC, etc).

Function Documentation
   static int hwloc_ibv_get_device_cpuset (hwloc_topology_t topology, struct
       ibv_device * ibdev, hwloc_cpuset_t set) [inline],  [static]
       Get the CPU set of logical processors that are physically close to
       device ibdev. Return the	CPU set	describing the locality	of the
       OpenFabrics device ibdev	(InfiniBand, etc).

       Topology	topology and device ibdev must match the local machine.	I/O
       devices detection is not	needed in the topology.

       The function only returns the locality of the device. If	more
       information about the device is needed, OS objects should be used
       instead,	see hwloc_ibv_get_device_osdev() and
       hwloc_ibv_get_device_osdev_by_name().

       This function is	currently only implemented in a	meaningful way for
       Linux; other systems will simply	get a full cpuset.

   static hwloc_obj_t hwloc_ibv_get_device_osdev (hwloc_topology_t topology,
       struct ibv_device * ibdev) [inline],  [static]
       Get the hwloc OS	device object corresponding to the OpenFabrics device
       ibdev. Return the OS device object describing the OpenFabrics device
       ibdev (InfiniBand, etc).	Returns	NULL if	there is none.

       Topology	topology and device ibdev must match the local machine.	I/O
       devices detection must be enabled in the	topology. If not, the locality
       of the object may still be found	using hwloc_ibv_get_device_cpuset().

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

   static hwloc_obj_t hwloc_ibv_get_device_osdev_by_name (hwloc_topology_t
       topology, const char * ibname) [inline],	 [static]
       Get the hwloc OS	device object corresponding to the OpenFabrics device
       named ibname. Return the	OS device object describing the	OpenFabrics
       device (InfiniBand, Omni-Path, usNIC, etc) whose	name is	ibname
       (mlx5_0,	hfi1_0,	usnic_0, qib0, etc). Returns NULL if there is none.
       The name	ibname is usually obtained from	ibv_get_device_name().

       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 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	1.11.7			Thu Apr	27 2017	     hwlocality_openfabrics(3)

NAME | Detailed Description | Function Documentation | Author

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