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Title: Identifying a largest logical plane from a plurality of logical planes formed of compute nodes of a subcommunicator in a parallel computer

In a parallel computer, a largest logical plane from a plurality of logical planes formed of compute nodes of a subcommunicator may be identified by: identifying, by each compute node of the subcommunicator, all logical planes that include the compute node; calculating, by each compute node for each identified logical plane that includes the compute node, an area of the identified logical plane; initiating, by a root node of the subcommunicator, a gather operation; receiving, by the root node from each compute node of the subcommunicator, each node's calculated areas as contribution data to the gather operation; and identifying, by the root node in dependence upon the received calculated areas, a logical plane of the subcommunicator having the greatest area.
Authors:
;
Publication Date:
OSTI Identifier:
1261604
Report Number(s):
9,390,054
14/053,171
DOE Contract Number:
B554331
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 14
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