US Patent 7870545 Protecting shared variables in a software transactional memory system

Patent 7870545 was granted and assigned to Intel on January, 2011 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Intel

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78705450

Patent Inventor Names

Bratin Saha0

Ali-Reza Adl-Tabatabai0

Date of Patent

January 11, 2011

Patent Application Number

113056340

Date Filed

December 16, 2005

Patent Primary Examiner

‌

Tuan Q. Dam

Patent abstract

For a variable accessed at least once in a software-based transactional memory system (STM) defined (STM-defined) critical region of a program, modifying an access to the variable that occurs outside any STM-defined critical region system by starting a hardware based transactional memory based transaction, within the hardware based transactional memory based transaction, checking if the variable is currently owned by a STM transaction, checking if the variable is currently owned by a STM transaction; if the variable is not currently owned by a STM transaction, performing the access and then committing the hardware based transactional memory transaction; and if the variable is currently owned by a STM transaction, performing a responsive action.

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