The stated rationale was to permit an orderly transition on the part of the nuclear arsenal and its supporting industrial establishment to a permanent no-testing environment.
North Korea was in mid-bluster over its nuclear ambitions and going through its first and only transition of power since its Stalin-engendered creation in 1948.
In short order, the Sequoia supercomputer and its 1.57 million processing cores will transition to a life of top-secret analysis at the National Nuclear Security Administration, but until that day comes, researchers are currently working to ensure its seamless operation.