Performing collective operations using software setup and partial software execution at leaf nodes in a multi-tiered full-graph interconnect architecture
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United States of America Patent
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Jun 7, 2011
Grant Date -
Mar 5, 2009
app pub date -
Aug 27, 2007
filing date -
Aug 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mechanism for performing collective operations. In software executing on a parent processor in a first processor book, a number of other processors are determined in a same or different processor book of the data processing system that is needed to execute the collective operation, thereby establishing a plurality of processors comprising the parent processor and the other processors. In software executing on the parent processor, the plurality of processors are logically arranged as a plurality of nodes in a hierarchical structure. The collective operation is transmitted to the plurality of processors based on the hierarchical structure. In hardware of the parent processor, results are received from the execution of the collective operation from the other processors, a final result is generated of the collective operation based on the received results, and the final result is output.
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