What I'm quite sure of is about how they used this set (because the two rooms is only one set).

Imagine that the BTS photo is correct for the hologram room: we have the tubes in the walls, the pylons, the black circle on the floor, the kneeling pad...

OK, now to convert it in the meditation room: move the meditation chamber in the center of the room, cover pairs of pylons with a false wall (only letting the tubes to be visible), add a false off-line screen and voilà! There's your meditation room ready to be shot (for the other shots of the meditation room in which the officers come and go they used a different set).

So, using the same circular room twice for two different contiguous "rooms" that would make an 8-shaped room in "real life", wouldn't it? :)