OpenMPI
0.1.1
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Be sure to see the figure in termsanddefs that shows a complete topology tree, including depths, child/sibling/cousin relationships, and an example of an asymmetric topology where one socket has fewer caches than its peers. More...
Functions | |
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. More... | |
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 . More... | |
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 . More... | |
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 . More... | |
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 . More... | |
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 . More... | |
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. More... | |
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 . More... | |
Be sure to see the figure in termsanddefs that shows a complete topology tree, including depths, child/sibling/cousin relationships, and an example of an asymmetric topology where one socket has fewer caches than its peers.
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Returns the ancestor object of obj
at depth depth
.
References hwloc_obj::depth, and hwloc_obj::parent.
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Returns the ancestor object of obj
with type type
.
References hwloc_obj::parent, and hwloc_obj::type.
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Return the next child.
If prev
is NULL
, return the first child.
References hwloc_obj::first_child, hwloc_obj::next_sibling, and hwloc_obj::parent.
Referenced by hwloc_get_first_largest_obj_inside_cpuset().
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Returns the next object at depth depth
.
If prev
is NULL
, return the first object at depth depth
.
References hwloc_obj::depth, hwloc_get_obj_by_depth(), and hwloc_obj::next_cousin.
Referenced by hwloc_cpuset_from_nodeset(), hwloc_cpuset_from_nodeset_strict(), hwloc_get_next_obj_by_type(), hwloc_get_next_obj_covering_cpuset_by_depth(), and hwloc_get_next_obj_inside_cpuset_by_depth().
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Returns the next object of type type
.
If prev
is NULL
, return the first object at type type
. If there are multiple or no depth for given type, return NULL
and let the caller fallback to hwloc_get_next_obj_by_depth().
References hwloc_get_next_obj_by_depth(), hwloc_get_type_depth(), HWLOC_TYPE_DEPTH_MULTIPLE, and HWLOC_TYPE_DEPTH_UNKNOWN.
Referenced by hwloc_get_next_bridge(), hwloc_get_next_osdev(), hwloc_get_next_pcidev(), hwloc_get_pu_obj_by_os_index(), hwloc_mx_board_get_device_cpuset(), hwloc_nodeset_to_linux_libnuma_bitmask(), and hwloc_nodeset_to_linux_libnuma_ulongs().
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Returns the object of type HWLOC_OBJ_PU with os_index
.
os_index
field of object should most of the times only be used for pretty-printing purpose. Type HWLOC_OBJ_PU is the only case where os_index
could actually be useful, when manually binding to processors. However, using CPU sets to hide this complexity should often be preferred. References hwloc_get_next_obj_by_type(), HWLOC_OBJ_PU, and hwloc_obj::os_index.
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Returns the top-object of the topology-tree.
Its type is typically HWLOC_OBJ_MACHINE but it could be different for complex topologies. This function replaces the old deprecated hwloc_get_system_obj().
References hwloc_get_obj_by_depth().
Referenced by hwloc_get_first_largest_obj_inside_cpuset(), hwloc_get_obj_below_array_by_type(), hwloc_get_obj_covering_cpuset(), hwloc_get_whole_distance_matrix_by_depth(), hwloc_topology_get_allowed_cpuset(), hwloc_topology_get_allowed_nodeset(), hwloc_topology_get_complete_cpuset(), hwloc_topology_get_complete_nodeset(), hwloc_topology_get_online_cpuset(), hwloc_topology_get_topology_cpuset(), hwloc_topology_get_topology_nodeset(), ompi_mpi_init(), and orte_ess_base_orted_setup().
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Returns true if obj
is inside the subtree beginning with subtree_root
.
obj
and subtree_root
have a cpuset
. References hwloc_obj::cpuset, and hwloc_bitmap_isincluded().