wiki:numactl
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numactl
numactl - Control NUMA policy for processes or shared memory.
Non-uniform memory access (NUMA) is a computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to the processor. Under NUMA, a processor can access its own local memory faster than non-local memory (memory local to another processor or memory shared between processors). The benefits of NUMA are limited to particular workloads, notably on servers where the data are often associated strongly with certain tasks or users
From the command line, use the following:
numactl --hardware
This will give an output similar to the following:
available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 24 25 26 27 28 29 30 31 32 33 34 35 node 0 size: 32671 MB node 0 free: 29022 MB node 1 cpus: 12 13 14 15 16 17 18 19 20 21 22 23 36 37 38 39 40 41 42 43 44 45 46 47 node 1 size: 32768 MB node 1 free: 30264 MB node distances: node 0 1 0: 10 21 1: 21 10
wiki/numactl.1478523407.txt.gz · Last modified: 2023/03/09 22:35 (external edit)