about the meaning of numactl -i

Hi all,
I have a simple question regarding the functioning of the numactl
command with the -i flag.

Does it mean that, if I have, e.g., multiple allocations in my
executable then these allocations are interleaved on the numa nodes in
a round-robin fashion?

or does it mean that if I have, e.g., a single big allocation in my
executable the corresponding memory area will be split into multiple,
non-contiguous regions which are then interleaved on the numa nodes in
rr fashion?

or both of the above?


Best regards

Alfredo Buttari