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CentOS 7.0 - man page for hwloc_distances_s (centos section 3)

hwloc_distances_s(3)			      Hardware Locality (hwloc) 			 hwloc_distances_s(3)

hwloc_distances_s -
#include <hwloc.h> Data Fields unsigned relative_depth unsigned nbobjs float * latency float latency_max float latency_base Detailed Description 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. Field Documentation float* hwloc_distances_s::latency 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 i*nbobjs+j. float hwloc_distances_s::latency_base 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. float hwloc_distances_s::latency_max The maximal value in the latency matrix. unsigned hwloc_distances_s::nbobjs 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 hwloc_get_nbobjs_inside_cpuset_by_depth. unsigned hwloc_distances_s::relative_depth Relative depth of the considered objects below the object containing this distance information. Author 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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