Hardware data race detection in HPCS codes

Details Hardware data race detection in HPCS codes Hardware data race detection in HPCS codes

2007-03-13

2010-10-26

Guyton, Philip (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S012000, C711S144000, C711S147000, C711S150000

Reexamination Certificate

active

07823013

ABSTRACT:
A method and system for detecting race conditions computing systems. A parallel computing system includes multiple processor cores is coupled to memory. An application with a code sequence in which parallelism to be exploited is executed on this system. Different processor cores may operate on a given memory line concurrently. Extra bits are associated with the memory data line and are used to indicate changes to corresponding subsections of data in the memory line. A memory controller may perform a comparison between check bits of a memory line to determine if more than one processor core modified the same section of data in a cache line and a race condition has occurred.

REFERENCES:
patent: 4426681 (1984-01-01), Bacot et al.
patent: 5029070 (1991-07-01), McCarthy et al.
patent: 5175837 (1992-12-01), Arnold et al.
patent: 5428766 (1995-06-01), Seaman
patent: 5551005 (1996-08-01), Sarangdhar et al.
patent: 5710881 (1998-01-01), Gupta et al.
patent: 6026504 (2000-02-01), Hagiwara
patent: 6536000 (2003-03-01), Jackson et al.
patent: 6763434 (2004-07-01), Arimilli et al.
patent: 6928520 (2005-08-01), McAllister et al.
patent: 7174406 (2007-02-01), Abdallah et al.
patent: 7254687 (2007-08-01), Jeter et al.
patent: 2002/0087807 (2002-07-01), Gharachorloo et al.
patent: 2006/0075057 (2006-04-01), Gildea et al.
patent: 2006/0212754 (2006-09-01), Yamaguchi et al.
patent: 2007/0214333 (2007-09-01), Nijhawan et al.
patent: 2009/0198916 (2009-08-01), Arimilli et al.

Affiliated with

Also associated with

Rating

Hardware data race detection in HPCS codes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hardware data race detection in HPCS codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardware data race detection in HPCS codes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4165374