Abstract: Provided is a technology of preventing an increase in size of a treatment plant, which may be caused when a safety clearance for the prevention of spread of a fire is set, and restraining an increase in designed fire-extinguishing water usage. A treatment plant for handling a flammable liquid includes: an equipment placement region in which a plurality of equipments configured to handle the flammable fluid are placed, the equipment placement region being divided into four or more firewater supply sections. A plurality of fire-extinguishing water supply facilities are provided to the firewater supply sections, respectively, the fire-extinguishing water supply facilities each being capable of, when a fire occurs in the firewater supply sections, simultaneously supplying fire-extinguishing water to a fire-occurrence section and an adjacent section.

Abstract: A virtual storage management method in a multi-processor system in which individual processors share an external storage is shown. Data of the virtual storage is stored in the shared external storage, and a page table for managing the virtual storage of each processor is also stored in the shared external storage. By exclusively controlling an access to that page table, the virtual storage can be managed.