NAME

       hwloc_distances_s

SYNOPSIS

       #include <distances.h>

   Data Fields
       unsigned nbobjs
       hwloc_obj_t * objs
       unsigned long kind
       hwloc_uint64_t * values

Detailed Description

       Matrix of distances between a set of objects.

       This matrix often contains latencies between NUMA nodes (as reported in the System
       Locality Distance Information Table (SLIT) in the ACPI specification), which may or may
       not be physically accurate. It corresponds to the latency for accessing the memory of one
       node from a core in another node. The corresponding kind is HWLOC_DISTANCES_KIND_FROM_OS |
       HWLOC_DISTANCES_KIND_FROM_USER.

       The matrix may also contain bandwidths between random sets of objects, possibly provided
       by the user, as specified in the kind attribute.

Field Documentation

   unsigned long hwloc_distances_s::kind
       OR'ed set of hwloc_distances_kind_e.

   unsigned hwloc_distances_s::nbobjs
       Number of objects described by the distance matrix.

   hwloc_obj_t* hwloc_distances_s::objs
       Array of objects described by the distance matrix. These objects are not in any particular
       order, see hwloc_distances_obj_index() and hwloc_distances_obj_pair_values() for easy ways
       to find objects in this array and their corresponding values.

   hwloc_uint64_t* hwloc_distances_s::values
       Matrix of distances between objects, stored as a one-dimension array. Distance from i-th
       to j-th object is stored in slot i*nbobjs+j. The meaning of the value depends on the kind
       attribute.

Author

       Generated automatically by Doxygen for Hardware Locality (hwloc) from the source code.