Electrical computers and digital processing systems: memory – Storage accessing and control – Shared memory area
Reexamination Certificate
2005-06-28
2005-06-28
Anderson, Matthew D. (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Shared memory area
C711S173000
Reexamination Certificate
active
06912625
ABSTRACT:
A method, system, and product are described for creating and managing affinity between memory and processors in logical partitions in a data processing system. The data processing system includes multiple processors. A memory affinity data structure is established. The memory affinity data structure identifies ones of the processors that have a close affinity with each one of multiple regions of the system memory. A memory affinity parameter is established and is utilized to determine whether memory affinity is required for each one of the logical partitions. In response to a determination that memory affinity is required for one of the logical partitions, the memory affinity data structure is utilized by a partition manager for the logical partition to allocate an optimal amount of memory that has a close affinity to ones of the processors that are assigned to the logical partition.
REFERENCES:
patent: 5155803 (1992-10-01), Barabash et al.
patent: 6625638 (2003-09-01), Kubala et al.
patent: 2002/0129127 (2002-09-01), Romero et al.
Foster Robert Kimberlin
Lee Van Hoa
McCreary Casey Lee
Paul Priya
Post Natalie Marie
Anderson Matthew D.
International Business Machines - Corporation
McBurney Mark E.
Tkacs Stephen R.
Yee Duke W.
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