Executing scatter operation to parallel computer nodes by...

Details Executing scatter operation to parallel computer nodes by... Executing scatter operation to parallel computer nodes by...

2007-04-19

2009-10-06

Kim, Kenneth S (Department: 2111)

Electrical computers and digital processing systems: processing

Processing architecture

Distributed processing system

C712S030000

Reexamination Certificate

active

07600095

ABSTRACT:
Executing a scatter operation on a parallel computer includes: configuring a send buffer on a logical root, the send buffer having positions, each position corresponding to a ranked node in an operational group of compute nodes and for storing contents scattered to that ranked node; and repeatedly for each position in the send buffer: broadcasting, by the logical root to each of the other compute nodes on a global combining network, the contents of the current position of the send buffer using a bitwise OR operation, determining, by each compute node, whether the current position in the send buffer corresponds with the rank of that compute node, if the current position corresponds with the rank, receiving the contents and storing the contents in a reception buffer of that compute node, and if the current position does not correspond with the rank, discarding the contents.

REFERENCES:
patent: 5832215 (1998-11-01), Kato et al.
patent: 2002/0144027 (2002-10-01), Schmisseur

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