Electrical computers and digital processing systems: memory – Storage accessing and control – Shared memory area
Reexamination Certificate
2006-09-12
2006-09-12
Choi, Woo H. (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Shared memory area
C714S005110
Reexamination Certificate
active
07107411
ABSTRACT:
A fault tolerant synchronized virtual memory manager for use in a load sharing environment manages memory allocation, memory mapping, and memory sharing in a first processor, while maintaining synchronization of the memory space of the first processor with the memory space of at least one partner processor. In one embodiment, synchronization is maintained via paging synchronization messages such as a space request message, an allocate memory message, a release memory message, a lock request message, a read header message, a write page message, a sense request message, an allocate read message, an allocate write message, and/or a release pointer message. Paging synchronization facilitates recovery operations without the cost and overhead of prior art fault tolerant systems.
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Burton David Alan
Otterness Noel Simen
Choi Woo H.
International Business Machines - Corporation
Kunzler & Associates
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