N U M A

N U M A

1. Is the phenomenon that memory at various points in the address space of a processor

2. NUMA support that explicitly understood the topological properties of the system’s memory

3. These products had to modify the Linux KERNEL; processors have miltiple chassis with NUMAlink interconnection

4. Accesses from a single processor to local memory

   • Nodes have an affinity to processors and to devices

5. Memory is called node local if it was allocated from the NUMA node that is best for the processor.

6. The system is functional, but performance varies depending on how memory happens to be allocated.

7. The system default policy is changed to NODE LOCAL when the first userspace process (init daemon) is started.