hwlocality_creation (3) - Linux Manuals

hwlocality_creation: Topology Creation and Destruction

NAME

hwlocality_creation - Topology Creation and Destruction

Typedefs

typedef struct hwloc_topology * hwloc_topology_t

Functions

int hwloc_topology_init (hwloc_topology_t *topologyp)

int hwloc_topology_load (hwloc_topology_t topology)

void hwloc_topology_destroy (hwloc_topology_t topology)

int hwloc_topology_dup (hwloc_topology_t *newtopology, hwloc_topology_t oldtopology)

void hwloc_topology_check (hwloc_topology_t topology)

Detailed Description

Typedef Documentation

typedef struct hwloc_topology* hwloc_topology_t

Topology context. To be initialized with hwloc_topology_init() and built with hwloc_topology_load().

Function Documentation

void hwloc_topology_check (hwloc_topology_t topology)

Run internal checks on a topology structure. The program aborts if an inconsistency is detected in the given topology.

Parameters:

topology is the topology to be checked

Note:

This routine is only useful to developers.

The input topology should have been previously loaded with hwloc_topology_load().

void hwloc_topology_destroy (hwloc_topology_t topology)

Terminate and free a topology context.

Parameters:

topology is the topology to be freed

int hwloc_topology_dup (hwloc_topology_t * newtopology, hwloc_topology_t oldtopology)

Duplicate a topology. The entire topology structure as well as its objects are duplicated into a new one.

This is useful for keeping a backup while modifying a topology.

int hwloc_topology_init (hwloc_topology_t * topologyp)

Allocate a topology context.

Parameters:

topologyp is assigned a pointer to the new allocated context.

Returns:

0 on success, -1 on error.

int hwloc_topology_load (hwloc_topology_t topology)

Build the actual topology. Build the actual topology once initialized with hwloc_topology_init() and tuned with Topology Detection Configuration and Query routines. No other routine may be called earlier using this topology context.

Parameters:

topology is the topology to be loaded with objects.

Returns:

0 on success, -1 on error.

Note:

On failure, the topology is reinitialized. It should be either destroyed with hwloc_topology_destroy() or configured and loaded again.

This function may be called only once per topology.

See also:

Topology Detection Configuration and Query

Author

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