Enhanced mechanisms for granting access to shared resources

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United States of America Patent

PATENT NO 9742686
APP PUB NO 20150089060A1
SERIAL NO

14083622

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Mechanisms are provided, in a data processing system comprising a plurality of nodes, each node being a computing device, for controlling access to a critical section of code. These mechanisms send, by a sender node of the data processing system, an access request for requesting access to the critical section of code. The critical section of code is a portion of code that accesses a shared resource. The mechanisms receive, in the sender node, from a plurality of receiver nodes in the data processing system, responses to the access request. Each response in the responses includes a number of active nodes perceived by a corresponding receiver node that transmitted the response. The mechanisms control, by the sender node, access to the critical section of code based on the number of active nodes identified in each of the responses received from the receiver nodes.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cruz-Aguilar, Esdras E Austin, US 12 103
Ganesh, Perinkulam I Round Rock, US 43 534
Kandasamy, Madhusudanan Gobichettipalayam, IN 28 439
Meyer, Charles E Austin, US 4 29
Tovcimak, Stephen J Red Hook, US 4 29

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