Hierarchical Backoff Locks for Nonuniform Communication Architectures

@inproceedings{Radovic2003HierarchicalBL,
  title={Hierarchical Backoff Locks for Nonuniform Communication Architectures},
  author={Zoran Radovic and Erik Hagersten},
  booktitle={HPCA},
  year={2003}
}
This paper identifies node affinity as an important property for scalable general-purpose locks. Nonuniform communication architectures (NUCAs), for example CCNUMAs built from a few large nodes or from chip multiprocessors (CMPs), have a lower penalty for reading data from a neighbor’s cache than from a remote cache. Lock implementations that encourages handing over locks to neighbors will improve the lock handover time, as well as the access to the critical data guarded by the lock, but will… CONTINUE READING
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