Inter process communication(shared memory) between pods

How to implement Inter process communication(shared memory) between pods in same node or different nodes.?

is there any way to access shared memory from multiple pods.?

The only guaranteed way to have 2 containers running on the same node is when you run then as sidecar. Means 1 pod 2 containers.
But i’ve not tried sharing memory between them.
My hunch is, it may not be possible because of cgroups.

is it possible to share data with in 2 applications in 2 different pods using [Inter process communication(shared memory)?

This Fast IPC between multiple pods on same node looks related.