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hwlocality_custom(3) Hardware Locality (hwloc) hwlocality_custom(3)
NAME
hwlocality_custom - Building Custom Topologies
Functions
int hwloc_custom_insert_topology (hwloc_topology_t newtopology,
hwloc_obj_t newparent, hwloc_topology_t oldtopology, hwloc_obj_t
oldroot)
hwloc_obj_t hwloc_custom_insert_group_object_by_parent
(hwloc_topology_t topology, hwloc_obj_t parent, int groupdepth)
Detailed Description
A custom topology may be initialized by calling
hwloc_topology_set_custom() after hwloc_topology_init(). It may then be
modified by inserting objects or entire topologies. Once done
assembling, hwloc_topology_load() should be invoked as usual to
finalize the topology.
Function Documentation
hwloc_obj_t hwloc_custom_insert_group_object_by_parent (hwloc_topology_t
topology, hwloc_obj_t parent, int groupdepth)
Insert a new group object inside a custom topology. An object with type
HWLOC_OBJ_GROUP is inserted as a new child of object parent.
groupdepth is the depth attribute to be given to the new object. It may
for instance be 0 for top-level groups, 1 for their children, and so
on.
The custom topology newtopology must have been prepared with
hwloc_topology_set_custom() and not loaded with hwloc_topology_load()
yet.
parent may be either the root of topology or an object that was added
earlier through hwloc_custom_insert_group_object_by_parent().
Note:
The cpuset and nodeset of the new group object are NULL because
these sets are meaningless when assembling multiple topologies.
The cpuset and nodeset of the parent object are not modified.
int hwloc_custom_insert_topology (hwloc_topology_t newtopology, hwloc_obj_t
newparent, hwloc_topology_t oldtopology, hwloc_obj_t oldroot)
Insert an existing topology inside a custom topology. Duplicate the
existing topology oldtopology inside a new custom topology newtopology
as a leaf of object newparent.
If oldroot is not NULL, duplicate oldroot and all its children instead
of the entire oldtopology. Passing the root object of oldtopology in
oldroot is equivalent to passing NULL.
The custom topology newtopology must have been prepared with
hwloc_topology_set_custom() and not loaded with hwloc_topology_load()
yet.
newparent may be either the root of newtopology or an object that was
added through hwloc_custom_insert_group_object_by_parent().
Note:
The cpuset and nodeset of the newparent object are not modified
based on the contents of oldtopology.
Author
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the source code.
Version 1.11.1 Thu Oct 15 2015 hwlocality_custom(3)