Invention Grant
- Patent Title: Deadlock avoidance by marking CPU traffic as special
- Patent Title (中): 通过将CPU流量标记为特殊来防止死锁
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Application No.: US12334394Application Date: 2008-12-12
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Publication No.: US08392667B2Publication Date: 2013-03-05
- Inventor: Samuel H. Duncan , David B. Glasco , Wei-Je Huang , Atul Kalambur , Patrick R. Marchand , Dennis K. Ma
- Applicant: Samuel H. Duncan , David B. Glasco , Wei-Je Huang , Atul Kalambur , Patrick R. Marchand , Dennis K. Ma
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson & Sheridan, LLP
- Main IPC: G06F12/00
- IPC: G06F12/00
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.
Public/Granted literature
- US20100153658A1 Deadlock Avoidance By Marking CPU Traffic As Special Public/Granted day:2010-06-17
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