The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2012
Filed:
Feb. 01, 2008
Lakshminarayana B. Armilli, Austin, TX (US);
Robert S. Blackmore, Poughkeepsie, NY (US);
Chulho Kim, Poughkeepsie, NY (US);
Ramakrishnan Rajamony, Austin, TX (US);
Hanhong Xue, Poughkeepsie, NY (US);
Lakshminarayana B. Armilli, Austin, TX (US);
Robert S. Blackmore, Poughkeepsie, NY (US);
Chulho Kim, Poughkeepsie, NY (US);
Ramakrishnan Rajamony, Austin, TX (US);
Hanhong Xue, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and data processing system for performing fence operations within a global shared memory (GSM) environment having a local task executing on a processor and providing GSM commands for processing by a host fabric interface (HFI) window that is allocated to the task. The HFI window has one or more registers for use during local fence operations. A first register tracks a first count of task-issued GSM commands, and a second register tracks a second count of GSM operations being processed by the HFI. The processing logic detects a locally-issued fence operation, and responds by performing a series of operations, including: automatically stopping the task from issuing additional GSM commands; monitoring for completion of all the task-issued GSM commands at the HFI; and triggering a resumption of issuance of GSM commands by the task when the completion of all previous task-issued GSM commands is registered by the HFI.