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Title: Configuring compute nodes of a parallel computer in an operational group into a plurality of independent non-overlapping collective networks

Patent ·
OSTI ID:1015492

Methods, apparatus, and products are disclosed for configuring compute nodes of a parallel computer in an operational group into a plurality of independent non-overlapping collective networks, the compute nodes in the operational group connected together for data communications through a global combining network, that include: partitioning the compute nodes in the operational group into a plurality of non-overlapping subgroups; designating one compute node from each of the non-overlapping subgroups as a master node; and assigning, to the compute nodes in each of the non-overlapping subgroups, class routing instructions that organize the compute nodes in that non-overlapping subgroup as a collective network such that the master node is a physical root.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
B554331
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
7,673,011
Application Number:
11/837,015
OSTI ID:
1015492
Country of Publication:
United States
Language:
English

References (2)

Collective communication on architectures that support simultaneous communication over multiple links
  • Chan, Ernie; van de Geijn, Robert; Gropp, William
  • Proceedings of the eleventh ACM SIGPLAN symposium on Principles and practice of parallel programming - PPoPP '06 https://doi.org/10.1145/1122971.1122975
conference January 2006
Optimization of MPI collective communication on BlueGene/L systems conference January 2005