hwloc is a command-line suite that gathers various attributes of the underlying processor architecture, such as NUMA memory nodes, multi-level caches, processor sockets, processor cores, PCI devices/bridges, etc.
To install hwloc run the following command in Terminal.
sudo apt-get install hwloc
Now that you have installed hwloc you can run the following commands.
The lstopo command visualizes the topology of the system which is composed of CPUs, cache, memory and I/O devices. This command is useful to identify the processor architecture and NUMA topology of the system.
$ lstopo --no-io