Linux utility for identifying CPU cores and respective NUMA nodes.
This utility will scan all CPU cores, determine the NUMA node associated to the core (if any) and output the core and node ids.
For example
$ ./cpu-nodes
Current process affinity list: 0 1 2 3 4 5 6 7
Finding NUMA nodes for a maximum of 8192 cores
Core 0 on node 0
Core 1 on node 0
Core 2 on node 0
Core 3 on node 0
Core 4 on node 0
Core 5 on node 0
Core 6 on node 0
Core 7 on node 0
Found 8 cores
To build the cpu-node tool, you'll need:
- A relatively recent C compiler
- CMake
- Linux kernel headers
From the source directory, execute
mkdir -p build && cmake -B build -DCMAKE_BUILD_TYPE=Release
make -C build
This will create the binary in build/cpu-nodes. There are no external library dependencies and cpu-nodes can be copied to your preferred target location.
Open a Github issue for reporting problems and providing feedback. Thanks for contributing!