File replication methods and apparatus for reducing port pressure in a clustered processor
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United States of America Patent
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May 8, 2001
Grant Date -
N/A
app pub date -
Mar 22, 1999
filing date -
Mar 22, 1999
priority date (Note) -
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Abstract
The invention provides techniques for reducing the port pressure of a clustered processor. In an illustrative embodiment, the processor includes multiple clusters of execution units, with each of the clusters having a portion of a register file and a portion of a predicate file associated therewith, such that a given cluster is permitted to write to and read from its associated portions of the register and predicate files. A replication technique in accordance with the invention reduces port pressure by replicating, e.g., a register lock file and a predicate lock file of the processor for each of the clusters. The replicated files vary depending upon whether the technique is implemented with a write-only interconnection or a read-only interconnection.
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