helper.h File Reference

High-level hwloc traversal helpers. More...

#include <stdlib.h>
#include <errno.h>

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Functions
static __hwloc_inline int __hwloc_attribute_pure	hwloc_get_type_or_below_depth (hwloc_topology_t topology, hwloc_obj_type_t type)
	Returns the depth of objects of type type or below.
static __hwloc_inline int __hwloc_attribute_pure	hwloc_get_type_or_above_depth (hwloc_topology_t topology, hwloc_obj_type_t type)
	Returns the depth of objects of type type or above.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_root_obj (hwloc_topology_t topology)
	Returns the top-object of the topology-tree.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_ancestor_obj_by_depth (hwloc_topology_t topology __hwloc_attribute_unused, unsigned depth, hwloc_obj_t obj)
	Returns the ancestor object of obj at depth depth.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_ancestor_obj_by_type (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_type_t type, hwloc_obj_t obj)
	Returns the ancestor object of obj with type type.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_by_depth (hwloc_topology_t topology, unsigned depth, hwloc_obj_t prev)
	Returns the next object at depth depth.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_by_type (hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t prev)
	Returns the next object of type type.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_pu_obj_by_os_index (hwloc_topology_t topology, unsigned os_index)
	Returns the object of type HWLOC_OBJ_PU with os_index.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_child (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t parent, hwloc_obj_t prev)
	Return the next child.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_common_ancestor_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj1, hwloc_obj_t obj2)
	Returns the common parent object to objects lvl1 and lvl2.
static __hwloc_inline int __hwloc_attribute_pure	hwloc_obj_is_in_subtree (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj, hwloc_obj_t subtree_root)
	Returns true if _obj_ is inside the subtree beginning with subtree_root.
static __hwloc_inline hwloc_obj_t	hwloc_get_first_largest_obj_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
	Get the first largest object included in the given cpuset set.
HWLOC_DECLSPEC int	hwloc_get_largest_objs_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t *__hwloc_restrict objs, int max)
	Get the set of largest objects covering exactly a given cpuset set.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, unsigned depth, hwloc_obj_t prev)
	Return the next object at depth depth included in CPU set set.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, hwloc_obj_t prev)
	Return the next object of type type included in CPU set set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, unsigned depth, unsigned idx)
	Return the index -th object at depth depth included in CPU set set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, unsigned idx)
	Return the idx -th object of type type included in CPU set set.
static __hwloc_inline unsigned __hwloc_attribute_pure	hwloc_get_nbobjs_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, unsigned depth)
	Return the number of objects at depth depth included in CPU set set.
static __hwloc_inline int __hwloc_attribute_pure	hwloc_get_nbobjs_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type)
	Return the number of objects of type type included in CPU set set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_child_covering_cpuset (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_const_cpuset_t set, hwloc_obj_t parent)
	Get the child covering at least CPU set set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_obj_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
	Get the lowest object covering at least CPU set set.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_covering_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, unsigned depth, hwloc_obj_t prev)
	Iterate through same-depth objects covering at least CPU set set.
static __hwloc_inline hwloc_obj_t	hwloc_get_next_obj_covering_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, hwloc_obj_t prev)
	Iterate through same-type objects covering at least CPU set set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_cache_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
	Get the first cache covering a cpuset set.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_shared_cache_covering_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj)
	Get the first cache shared between an object and somebody else.
HWLOC_DECLSPEC unsigned	hwloc_get_closest_objs (hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_t *__hwloc_restrict objs, unsigned max)
	Do a depth-first traversal of the topology to find and sort.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_obj_below_by_type (hwloc_topology_t topology, hwloc_obj_type_t type1, unsigned idx1, hwloc_obj_type_t type2, unsigned idx2)
	Find an object below another object, both specified by types and indexes.
static __hwloc_inline hwloc_obj_t __hwloc_attribute_pure	hwloc_get_obj_below_array_by_type (hwloc_topology_t topology, int nr, hwloc_obj_type_t *typev, unsigned *idxv)
	Find an object below a chain of objects specified by types and indexes.
static __hwloc_inline void	hwloc_distribute (hwloc_topology_t topology, hwloc_obj_t root, hwloc_cpuset_t *cpuset, unsigned n)
	Distribute n items over the topology under root.
static __hwloc_inline hwloc_const_cpuset_t __hwloc_attribute_pure	hwloc_topology_get_complete_cpuset (hwloc_topology_t topology)
static __hwloc_inline hwloc_const_cpuset_t __hwloc_attribute_pure	hwloc_topology_get_topology_cpuset (hwloc_topology_t topology)
static __hwloc_inline hwloc_const_cpuset_t __hwloc_attribute_pure	hwloc_topology_get_online_cpuset (hwloc_topology_t topology)
	Get online CPU set.
static __hwloc_inline hwloc_const_cpuset_t __hwloc_attribute_pure	hwloc_topology_get_allowed_cpuset (hwloc_topology_t topology)
	Get allowed CPU set.

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Detailed Description

High-level hwloc traversal helpers.