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Constructing a logical, regular axis topology from an irregular topology

Patent ·
OSTI ID:1136402

Constructing a logical regular topology from an irregular topology including, for each axial dimension and recursively, for each compute node in a subcommunicator until returning to a first node: adding to a logical line of the axial dimension a neighbor specified in a nearest neighbor list; calling the added compute node; determining, by the called node, whether any neighbor in the node's nearest neighbor list is available to add to the logical line; if a neighbor in the called compute node's nearest neighbor list is available to add to the logical line, adding, by the called compute node to the logical line, any neighbor in the called compute node's nearest neighbor list for the axial dimension not already added to the logical line; and, if no neighbor in the called compute node's nearest neighbor list is available to add to the logical line, returning to the calling compute node.

Research Organization:
International Business Machines Corporation, Armonk, NY (USA).
Sponsoring Organization:
USDOE
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
8,769,074
Application Number:
13/309,022
OSTI ID:
1136402
Country of Publication:
United States
Language:
English

References (2)

Implementing the MPI Process Topology Mechanism conference January 2002
Topology Mapping for Blue Gene/L Supercomputer conference November 2006