Origin Address Space
- Physically the memory is distributed and is not contiguous.
- Node id is assigned at boot time
- Logically memory is a shared single contiguous address space, the virtual address space is 44 bits (16 TB)
- The program (compiler) uses the virtual address space.
- Translation from the virtual to the physical address space is by the CPU.
TLB = Translation Look-aside Buffer
Page size is configurable as 16 KB (default),
64 KB, 256 KB, 1 MB, 4 MB, 16 MB