NAME

       hwlocality_helper_find_misc

SYNOPSIS

   Functions
       static hwloc_obj_t hwloc_get_pu_obj_by_os_index (hwloc_topology_t topology, unsigned
           os_index)
       static hwloc_obj_t hwloc_get_numanode_obj_by_os_index (hwloc_topology_t topology, unsigned
           os_index)
       unsigned hwloc_get_closest_objs (hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_t
           *restrict objs, unsigned max)
       static hwloc_obj_t hwloc_get_obj_below_by_type (hwloc_topology_t topology,
           hwloc_obj_type_t type1, unsigned idx1, hwloc_obj_type_t type2, unsigned idx2)
       static hwloc_obj_t hwloc_get_obj_below_array_by_type (hwloc_topology_t topology, int nr,
           hwloc_obj_type_t *typev, unsigned *idxv)

Detailed Description

       Be sure to see the figure in Terms and Definitions that shows a complete topology tree,
       including depths, child/sibling/cousin relationships, and an example of an asymmetric
       topology where one package has fewer caches than its peers.

Function Documentation

   unsigned hwloc_get_closest_objs (hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_t
       *restrict objs, unsigned max)
       Do a depth-first traversal of the topology to find and sort. all objects that are at the
       same depth than src. Report in objs up to max physically closest ones to src.

       Returns:
           the number of objects returned in objs.

           0 if src is an I/O object.

       Note:
           This function requires the src object to have a CPU set.

   static hwloc_obj_t hwloc_get_numanode_obj_by_os_index (hwloc_topology_t topology, unsigned
       os_index) [inline],  [static]
       Returns the object of type HWLOC_OBJ_NUMANODE with os_index. This function is useful for
       converting a nodeset into the NUMA node objects it contains. When retrieving the current
       binding (e.g. with hwloc_get_membind_nodeset()), one may iterate over the bits of the
       resulting nodeset with hwloc_bitmap_foreach_begin(), and find the corresponding NUMA nodes
       with this function.

   static hwloc_obj_t hwloc_get_obj_below_array_by_type (hwloc_topology_t topology, int nr,
       hwloc_obj_type_t * typev, unsigned * idxv) [inline],  [static]
       Find an object below a chain of objects specified by types and indexes. This is a
       generalized version of hwloc_get_obj_below_by_type().

       Arrays typev and idxv must contain nr types and indexes.

       Start from the top system object and walk the arrays typev and idxv. For each type and
       logical index couple in the arrays, look under the previously found object to find the
       index-th object of the given type. Indexes are specified within the parent, not withing
       the entire system.

       For instance, if nr is 3, typev contains NODE, PACKAGE and CORE, and idxv contains 0, 1
       and 2, return the third core object below the second package below the first NUMA node.

       Note:
           This function requires all these objects and the root object to have a CPU set.

   static hwloc_obj_t hwloc_get_obj_below_by_type (hwloc_topology_t topology, hwloc_obj_type_t
       type1, unsigned idx1, hwloc_obj_type_t type2, unsigned idx2) [inline],  [static]
       Find an object below another object, both specified by types and indexes. Start from the
       top system object and find object of type type1 and logical index idx1. Then look below
       this object and find another object of type type2 and logical index idx2. Indexes are
       specified within the parent, not withing the entire system.

       For instance, if type1 is PACKAGE, idx1 is 2, type2 is CORE and idx2 is 3, return the
       fourth core object below the third package.

       Note:
           This function requires these objects to have a CPU set.

   static hwloc_obj_t hwloc_get_pu_obj_by_os_index (hwloc_topology_t topology, unsigned os_index)
       [inline],  [static]
       Returns the object of type HWLOC_OBJ_PU with os_index. This function is useful for
       converting a CPU set into the PU objects it contains. When retrieving the current binding
       (e.g. with hwloc_get_cpubind()), one may iterate over the bits of the resulting CPU set
       with hwloc_bitmap_foreach_begin(), and find the corresponding PUs with this function.

Author

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