Controlling access to shared memory
a universal pool of non-volatile memory is accessed by large numbers of specialised cores ... in which data can stay still while different processors are brought to bear on either all of it or subsets of it.
It's a long time - over 35 years - since I worked on a multiprocessor shared-memory architecture. Presumably HPE reckon that they can implement monitors or semaphores - to control access to shared memory - in such a way as not to adversely affect the Machine's performance.