A method, apparatus and program for booting a non-uniform-memory-access
(NUMA) machine are provided. The invention comprises configuring a
plurality of standalone, symmetrical multiprocessing (SMP) systems to
operate within a NUMA system. A master processor is selected within each
SMP; the other processors in the SMP are designated as NUMA slave
processors. A NUMA master processor is then chosen from the SMP master
processors; the other SMP master processors are designated as NUMA slave
processors. A unique NUMA ID is assigned to each SMP that will be part of
the NUMA system. The SMPs are then booted in NUMA mode in one-pass with
memory coherency established right at the beginning of the execution of
the system firmware.