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numactl — Control NUMA policy for processes or shared memory. More information: <https://manned.org/numactl>.

Submitted by: @import:tldr-pages··
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commandnumaclicontrolpolicynumactlforprocesses
linux

Problem

How to use the numactl command: Control NUMA policy for processes or shared memory. More information: <https://manned.org/numactl>.

Solution

numactl — Control NUMA policy for processes or shared memory. More information: <https://manned.org/numactl>.

Run a command on node 0 with memory allocated on node 0 and 1:
numactl --cpunodebind={{0}} --membind={{0,1}} -- {{command}} {{command_arguments}}


Run a command on CPUs (cores) 0-4 and 8-12 of the current cpuset:
numactl --physcpubind={{+0-4,8-12}} -- {{command}} {{command_arguments}}


Run a command with its memory interleaved on all CPUs:
numactl --interleave={{all}} -- {{command}} {{command_arguments}}

Code Snippets

Run a command on node 0 with memory allocated on node 0 and 1

numactl --cpunodebind={{0}} --membind={{0,1}} -- {{command}} {{command_arguments}}

Run a command on CPUs (cores) 0-4 and 8-12 of the current cpuset

numactl --physcpubind={{+0-4,8-12}} -- {{command}} {{command_arguments}}

Run a command with its memory interleaved on all CPUs

numactl --interleave={{all}} -- {{command}} {{command_arguments}}

Context

tldr-pages: linux/numactl

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