Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2007-10-30
2007-10-30
Nguyen, Van (Department: 2194)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
C712S229000
Reexamination Certificate
active
10422651
ABSTRACT:
A circuit and method provide rename register reallocation for simultaneous multi-threaded (SMT) processors that redistributes rename (mapped) resources between one thread during single-threaded (ST) execution and multiple threads during multi-threaded execution. The processor receives an instruction specifying a transition from a single-threaded to a multi-threaded mode or vice-versa and halts execution of all threads executing on the processor. The internal control logic then signals the resources to reallocate the resources. Rename resources are reallocated by directing an action at the rename mapper. When switching from SMT to ST mode, the mapper is directed to drop entries for the dying thread, but on a switch from ST to SMT mode, “dummy” instruction group dispatch indications are sent to the mapper that indicate use of all architected registers for each thread.
REFERENCES:
patent: 5630149 (1997-05-01), Bluhm
patent: 5822602 (1998-10-01), Thusoo
patent: 5996068 (1999-11-01), Dwyer et al.
patent: 6073231 (2000-06-01), Bluhm et al.
patent: 6092175 (2000-07-01), Levy et al.
patent: 6138230 (2000-10-01), Hervin et al.
patent: 6170051 (2001-01-01), Dowling
patent: 6212544 (2001-04-01), Borkenhagen et al.
patent: 6286027 (2001-09-01), Dwyer et al.
patent: 6356918 (2002-03-01), Chuang et al.
patent: 6381676 (2002-04-01), Aglietti et al.
patent: 6549930 (2003-04-01), Chrysos et al.
patent: 6847576 (2005-01-01), Ranganathan
patent: 6883107 (2005-04-01), Rodgers et al.
patent: 2001/0054057 (2001-12-01), Long et al.
patent: 2002/0163520 (2002-11-01), Hardin et al.
patent: 2002/0194251 (2002-12-01), Richter et al.
patent: 2003/0033509 (2003-02-01), Leibholz et al.
patent: 2004/0054876 (2004-03-01), Grisenthwaite et al.
patent: 2006/0037025 (2006-02-01), Janssen et al.
Burky William Elton
Christensen Bjorn Peter
Nguyen Dung Quoc
Schroter David A.
Williams Albert Thomas
Harris Andrew M.
Mitch Harris Atty at Law, LLC
Nguyen Van
Salys Casimer K.
LandOfFree
Method and logical apparatus for rename register... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and logical apparatus for rename register..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and logical apparatus for rename register... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3879667