CentOS 7.0 - man page for hwloc_distances_s (centos section 3)
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hwloc_distances_s(3) Hardware Locality (hwloc) hwloc_distances_s(3)
float * latency
Distances between objects.
One object may contain a distance structure describing distances between all its
descendants at a given relative depth. If the containing object is the root object of the
topology, then the distances are available for all objects in the machine.
If the latency pointer is not NULL, the pointed array contains memory latencies (non-zero
values), as defined by the ACPI SLIT specification.
In the future, some other types of distances may be considered. In these cases, latency
may be NULL.
Matrix of latencies between objects, stored as a one-dimension array. May be NULL if the
distances considered here are not latencies. Values are normalized to get 1.0 as the
minimal value in the matrix. Latency from i-th to j-th object is stored in slot
The multiplier that should be applied to latency matrix to retrieve the original OS-
provided latencies. Usually 10 on Linux since ACPI SLIT uses 10 for local latency.
The maximal value in the latency matrix.
Number of objects considered in the matrix. It is the number of descendant objects at
relative_depth below the containing object. It corresponds to the result of
Relative depth of the considered objects below the object containing this distance
Generated automatically by Doxygen for Hardware Locality (hwloc) from the source code.
Version 1.7 Sun Apr 7 2013 hwloc_distances_s(3)
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