Method and apparatus for controlling access to shared resources in an environment with multiple logical processors
December 5, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesFixed resource allocation method and apparatus for multiprocessor systems having complementarily phased cycles Method for switching between redundant buses in a distributed processing system Distributed processing object shared resource control apparatus and method Method of executing perform locked operation instructions for supporting recovery of data consistency if lost due to processor failure, and a method of recovering the data consistency after processor failure Shared memory interface with conventional access and synchronization support Shared resource manager for multiprocessor computer system Patent #: 6823472 InventorsAssigneeApplicationNo. 10001961 filed on 12/05/2001US Classes:718/104, Resource allocation710/200ACCESS LOCKINGExaminersPrimary: An, Meng-Ai T.Assistant: Truong, Cam-Y Attorney, Agent or FirmInternational ClassesG06F 9/46G06F 12/00 AbstractThe disclosure relates to a control mechanism for controlling access by multiple logical processors to shared resources on a common microchip. The processors attempt to reserve exclusive use of needed resources by updating a resource descriptor. The resource descriptor describes which logical processors have exclusive use of which resources. In order to update the resource descriptor, a logical processor must first obtain exclusive access to the resource descriptor by updating a semaphore. | |
