AffinityDomains Struct Reference

The AffinityDomains data structure holds different count variables describing the various system layers. More...

#include <likwid.h>

Inheritance diagram for AffinityDomains:

Collaboration diagram for AffinityDomains:

Public Attributes
AffinityDomain *	domains
	List of all domains in the system.
uint32_t	numberOfAffinityDomains
	Number of affinity domains in the current system and length of domains array.
uint32_t	numberOfCacheDomains
	Number of LLC caches in the system.
uint32_t	numberOfCoresPerCache
	Number of HW threads per LLC cache in the system.
uint32_t	numberOfNumaDomains
	Number of NUMA nodes in the system.
uint32_t	numberOfProcessorsPerCache
	Number of CPU cores per LLC cache in the system.
uint32_t	numberOfProcessorsPerSocket
	Number of HW threads per socket/package in the system.
uint32_t	numberOfSocketDomains
	Number of CPU sockets/packages in the system.

Detailed Description

The AffinityDomains data structure holds different count variables describing the various system layers.

Affinity domains are for example the amount of NUMA domains, CPU sockets/packages or LLC (Last Level Cache) cache domains of the current machine. Moreover a list of domains holds the processor lists for each domain that are used for scheduling processes to domain specific HW threads. Some amounts are duplicates or derivation of values in CpuInfo, CpuTopology and NumaTopology.

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The documentation for this struct was generated from the following file:

• src/includes/likwid.h