Clarification on "up to 1 TB per processor" on M5-32

So, in spite of the "up to 1 TB per processor" what's the practical maximum physical memory accessible by a user process?
For instance, on a full-blown configuration, can a user process allocate 24 TB of memory in a single shot?
Or yet, is a zone amount of memory limited by the quantity of processors involved in its specific configuration?

Perhaps I also need clarification on the aforementioned word "processor" and the memory limit relationship.

Thanks in advance.