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US 7,461,241 B2Granted
Concurrent physical processor reassignment method
AssigneeInternational Business Machines Corporation
InventorsChristopher R. Conklin, Randall W. Philley
Life of this patent
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Abstract
Reassignment of a physical processor backing a logical processor is performed concurrently to the operation of the processor. The operating state of one physical processor is loaded on another physical processor, such that the logical processor is backed by a different physical processor. This reassignment is performed concurrent to processor operation and transparent to the operating system.
Claims9
A method of reassigning physical processors of a processing environment, said method comprising:
- determining that a physical processor backing a logical processor is to be changed;
- and
- reassigning to the logical processor another physical processor, wherein the reassigning is concurrent to operation of the physical processor, and wherein the reassigning comprises:
- determining a new configuration for the processing environment;
- employing the new configuration by the physical processor currently assigned to the logical processor to determine that it is to be replaced;
- storing by the physical processor operating state of the physical processor;
- checking the new configuration by the another physical processor to determine that the another physical processor is to be assigned to the logical processor;
- and
- loading on the another physical processor stored operating state of the physical processor.
6 more elements
Dependencies are inferred from the claim text.