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:
Mar. 24, 2015
Filed:
May. 14, 2012
Michael A. Blocksome, Rochester, MN (US);
Todd A. Inglett, Rochester, MN (US);
Patrick J. Mccarthy, Rochester, MN (US);
Joseph D. Ratterman, Seattle, WA (US);
Brian E. Smith, Rochester, MN (US);
Michael A. Blocksome, Rochester, MN (US);
Todd A. Inglett, Rochester, MN (US);
Patrick J. McCarthy, Rochester, MN (US);
Joseph D. Ratterman, Seattle, WA (US);
Brian E. Smith, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Managing a direct memory access ('DMA') injection first-in-first-out ('FIFO') messaging queue in a parallel computer, including: inserting, by a messaging unit management module, a DMA message descriptor into the injection FIFO messaging queue; determining, by the messaging unit management module, the number of extra slots in an immediate messaging queue required to store DMA message data associated with the DMA message descriptor; and responsive to determining that the number of extra slots in the immediate message queue required to store the DMA message data is greater than one, inserting, by the messaging unit management module, a number of DMA dummy message descriptors into the injection FIFO messaging queue, wherein the number of DMA dummy message descriptors is at least as many as the number of extra slots in the immediate messaging queue that are required to store the DMA message data.