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hwlocality_helper_types(3) Hardware Locality (hwloc) hwlocality_helper_types(3)

NAME

hwlocality_helper_types - Kinds of object Type

SYNOPSIS

Functions


int hwloc_obj_type_is_normal (hwloc_obj_type_t type)
int hwloc_obj_type_is_io (hwloc_obj_type_t type)
int hwloc_obj_type_is_memory (hwloc_obj_type_t type)
int hwloc_obj_type_is_cache (hwloc_obj_type_t type)
int hwloc_obj_type_is_dcache (hwloc_obj_type_t type)
int hwloc_obj_type_is_icache (hwloc_obj_type_t type)

Detailed Description

Each object type is either Normal (i.e. hwloc_obj_type_is_normal() returns 1), or Memory (i.e. hwloc_obj_type_is_memory() returns 1) or I/O (i.e. hwloc_obj_type_is_io() returns 1) or Misc (i.e. equal to HWLOC_OBJ_MISC). It cannot be of more than one of these kinds.

Function Documentation

int hwloc_obj_type_is_cache (hwloc_obj_type_t type)

Check whether an object type is a CPU Cache (Data, Unified or Instruction). Memory-side caches are not CPU caches.

Returns

1 if an object of type type is a Cache, 0 otherwise.

int hwloc_obj_type_is_dcache (hwloc_obj_type_t type)

Check whether an object type is a CPU Data or Unified Cache. Memory-side caches are not CPU caches.

Returns

1 if an object of type type is a CPU Data or Unified Cache, 0 otherwise.

int hwloc_obj_type_is_icache (hwloc_obj_type_t type)

Check whether an object type is a CPU Instruction Cache,. Memory-side caches are not CPU caches.

Returns

1 if an object of type type is a CPU Instruction Cache, 0 otherwise.

int hwloc_obj_type_is_io (hwloc_obj_type_t type)

Check whether an object type is I/O. I/O objects are objects attached to their parents in the I/O children list. This current includes Bridges, PCI and OS devices.

Returns

1 if an object of type type is a I/O object, 0 otherwise.

int hwloc_obj_type_is_memory (hwloc_obj_type_t type)

Check whether an object type is Memory. Memory objects are objects attached to their parents in the Memory children list. This current includes NUMA nodes and Memory-side caches.

Returns

1 if an object of type type is a Memory object, 0 otherwise.

int hwloc_obj_type_is_normal (hwloc_obj_type_t type)

Check whether an object type is Normal. Normal objects are objects of the main CPU hierarchy (Machine, Package, Core, PU, CPU caches, etc.), but they are not NUMA nodes, I/O devices or Misc objects.

They are attached to parent as Normal children, not as Memory, I/O or Misc children.

Returns

1 if an object of type type is a Normal object, 0 otherwise.

Author

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Thu Feb 11 2021 Version 2.4.1