Hardware Locality (hwloc) 2.4.1

Functions
Finding Objects inside a CPU set

## Functions
static hwloc_obj_t | hwloc_get_first_largest_obj_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
int | hwloc_get_largest_objs_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t *restrict objs, int max)
static hwloc_obj_t | hwloc_get_next_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth, hwloc_obj_t prev)
static 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)
static hwloc_obj_t | hwloc_get_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth, unsigned idx)
static hwloc_obj_t | hwloc_get_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, unsigned idx)
static unsigned | hwloc_get_nbobjs_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth)
static int | hwloc_get_nbobjs_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type)
static int | hwloc_get_obj_index_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t obj)

## Detailed Description

## Function Documentation

## ◆ hwloc_get_first_largest_obj_inside_cpuset()

static hwloc_obj_t hwloc_get_first_largest_obj_inside_cpuset | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set
| ) |  |
| inline static

Get the first largest object included in the given cpuset `set`.

Returns
  the first object that is included in `set` and whose parent is not.

This is convenient for iterating over all largest objects within a CPU set by doing a loop getting the first largest object and clearing its CPU set from the remaining CPU set.

## ◆ hwloc_get_largest_objs_inside_cpuset()

int hwloc_get_largest_objs_inside_cpuset | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | hwloc_obj_t *restrict | objs,
|  | int | max
| ) |  |

Get the set of largest objects covering exactly a given cpuset `set`.

Returns
  the number of objects returned in `objs`.

## ◆ hwloc_get_nbobjs_inside_cpuset_by_depth()

static unsigned hwloc_get_nbobjs_inside_cpuset_by_depth | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | int | depth
| ) |  |
| inline static

Return the number of objects at depth `depth` included in CPU set `set`.

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects at the given depth do not have CPU sets (I/O or Misc objects).

## ◆ hwloc_get_nbobjs_inside_cpuset_by_type()

static int hwloc_get_nbobjs_inside_cpuset_by_type | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | hwloc_obj_type_t | type
| ) |  |
| inline static

Return the number of objects of type `type` included in CPU set `set`.

If no object for that type exists inside CPU set `set`, 0 is returned. If there are several levels with objects of that type inside CPU set `set`, -1 is returned.

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects of the given type do not have CPU sets (I/O objects).

## ◆ hwloc_get_next_obj_inside_cpuset_by_depth()

static hwloc_obj_t hwloc_get_next_obj_inside_cpuset_by_depth | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | int | depth,
|  | hwloc_obj_t | prev
| ) |  |
| inline static

Return the next object at depth `depth` included in CPU set `set`.

If `prev` is `NULL`, return the first object at depth `depth` included in `set`. The next invokation should pass the previous return value in `prev` so as to obtain the next object in `set`.

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects at the given depth do not have CPU sets (I/O or Misc objects).

## ◆ hwloc_get_next_obj_inside_cpuset_by_type()

static 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
| ) |  |
| inline static

Return the next object of type `type` included in CPU set `set`.

If there are multiple or no depth for given type, return `NULL` and let the caller fallback to hwloc_get_next_obj_inside_cpuset_by_depth().

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects of the given type do not have CPU sets (I/O or Misc objects).

## ◆ hwloc_get_obj_index_inside_cpuset()

static int hwloc_get_obj_index_inside_cpuset | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | hwloc_obj_t | obj
| ) |  |
| inline static

Return the logical index among the objects included in CPU set `set`.

Consult all objects in the same level as `obj` and inside CPU set `set` in the logical order, and return the index of `obj` within them. If `set` covers the entire topology, this is the logical index of `obj`. Otherwise, this is similar to a logical index within the part of the topology defined by CPU set `set`.

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if obj does not have CPU sets (I/O objects).

## ◆ hwloc_get_obj_inside_cpuset_by_depth()

static hwloc_obj_t hwloc_get_obj_inside_cpuset_by_depth | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | int | depth,
|  | unsigned | idx
| ) |  |
| inline static

Return the (logically) `idx` -th object at depth `depth` included in CPU set `set`.

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects at the given depth do not have CPU sets (I/O or Misc objects).

## ◆ hwloc_get_obj_inside_cpuset_by_type()

static hwloc_obj_t hwloc_get_obj_inside_cpuset_by_type | ( | hwloc_topology_t | topology,
|  | hwloc_const_cpuset_t | set,
|  | hwloc_obj_type_t | type,
|  | unsigned | idx
| ) |  |
| inline static

Return the `idx` -th object of type `type` included in CPU set `set`.

If there are multiple or no depth for given type, return `NULL` and let the caller fallback to hwloc_get_obj_inside_cpuset_by_depth().

Note
  Objects with empty CPU sets are ignored (otherwise they would be considered included in any given set).
  This function cannot work if objects of the given type do not have CPU sets (I/O or Misc objects).