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. 05, 2013
Filed:
Dec. 12, 2008
Samuel H. Duncan, Arlington, MA (US);
David B. Glasco, Austin, TX (US);
Wei-je Huang, Fremont, CA (US);
Atul Kalambur, Bangalore, IN;
Patrick R. Marchand, Apex, NC (US);
Dennis K. MA, Austin, TX (US);
Samuel H. Duncan, Arlington, MA (US);
David B. Glasco, Austin, TX (US);
Wei-Je Huang, Fremont, CA (US);
Atul Kalambur, Bangalore, IN;
Patrick R. Marchand, Apex, NC (US);
Dennis K. Ma, Austin, TX (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
Deadlocks are avoided by marking read requests issued by a parallel processor to system memory as 'special.' Read completions associated with read requests marked as special are routed on virtual channel 1 of the PCIe bus. Data returning on virtual channel 1 cannot become stalled by write requests in virtual channel 0, thus avoiding a potential deadlock.