NUMA memory topology module

Data type definition for Lua NUMA topology module in the Lua API

NUMA Info

This structure is returned by getNumaInfo function
It is similar to the C struct NumaTopology

Membername	Comment
numberOfNodes	Amount of NUMA nodes in the system
nodes	Membername Comment id ID of NUMA node totalMemory Total amount of memory in the NUMA domain freeMemory Free amount of memory in the NUMA domain numberOfProcessors Amount of CPUs in the NUMA domain numberOfDistances Amount of distances to local and remote NUMA nodes processors List of CPU IDs in the NUMA domain distances Two dimensional list of distances to NUMA nodes in the system

Function definitions for Lua NUMA topology module in the Lua API

getNumaInfo()

Get information about the NUMA domains in the system

Direction	Data type(s)
Input Parameter	None
Returns	NUMA Info lua_numainfo

putNumaInfo()

Frees C struct NumaTopology. You can still use the lua_numainfo data structure
If you call getNumaInfo function again after calling this function, the NUMA topology information will be read again.

Direction	Data type(s)
Input Parameter	None
Return	None

setMemInterleaved(nrThreads, threads2Cpus)

Set the 'Interleaved' memory policy to allocate data only on given CPUs

Direction	Data type(s)
Input Parameter	nrThreads Amount of threads in the threads2Cpus list threads2Cpus List of thread to CPU relations
Return	None

nodestr_to_nodelist(nodeexpression)

Resolve the given node expression in NUMA affinity domain

Direction	Data type(s)
Input Parameter	nodeexpression List of CPUs in NUMA node
Return	nrThreads Amount of threads in the threads2Cpus list threads2Cpus List of thread to CPU relations

sockstr_to_socklist(socketexpression)

Resolve the given socket expression in socket affinity domain

Direction	Data type(s)
Input Parameter	socketexpression List of CPUs in socket affinity domain
Return	nrThreads Amount of threads in the threads2Cpus list threads2Cpus List of thread to CPU relations

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