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Title: Generation-based memory synchronization in a multiprocessor system with weakly consistent memory accesses

In a multiprocessor system, a central memory synchronization module coordinates memory synchronization requests responsive to memory access requests in flight, a generation counter, and a reclaim pointer. The central module communicates via point-to-point communication. The module includes a global OR reduce tree for each memory access requesting device, for detecting memory access requests in flight. An interface unit is implemented associated with each processor requesting synchronization. The interface unit includes multiple generation completion detectors. The generation count and reclaim pointer do not pass one another.
Authors:
Publication Date:
OSTI Identifier:
1156947
Report Number(s):
8,832,403
12/796,411
DOE Contract Number:
B554331
Resource Type:
Patent
Research Org:
International Business Machines Corporation, Armonk, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING