FIELD: physics, computer engineering.
SUBSTANCE: group of inventions relates to computer engineering and can be used for setting storage keys used in a computing environment. Disclosed is a means of setting a key without switching to passive state, which enables to manipulate storage keys without switching to passive state operations of other processors of a multiprocessor system. Using said means, a storage key available for a plurality of processors of a multiprocessor system is updated without switching to passive state operations of the plurality of processors. Since the storage key is updated without switching to passive state the rest of the operations, the processor can recognise the storage key as having one value at the beginning of the operation and a second value at the end of the operation. A mechanism is provided, which enables to continue an operation to avoid a fatal condition.
EFFECT: high efficiency.
8 cl, 22 dwg
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