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Endpoint-based parallel data processing with non-blocking collective instructions in a parallel active messaging interface of a parallel computer

United States Patent

8,886,916
November 11, 2014
View the Complete Patent at the US Patent & Trademark Office
Endpoint-based parallel data processing with non-blocking collective instructions in a PAMI of a parallel computer is disclosed. The PAMI is composed of data communications endpoints, each including a specification of data communications parameters for a thread of execution on a compute node, including specifications of a client, a context, and a task. The compute nodes are coupled for data communications through the PAMI. The parallel application establishes a data communications geometry specifying a set of endpoints that are used in collective operations of the PAMI by associating with the geometry a list of collective algorithms valid for use with the endpoints of the geometry; registering in each endpoint in the geometry a dispatch callback function for a collective operation; and executing without blocking, through a single one of the endpoints in the geometry, an instruction for the collective operation.
Archer; Charles J. (Rochester, MN), Blocksome; Michael A. (Rochester, MN), Cernohous; Bob R. (Rochester, MN), Ratterman; Joseph D. (Seattle, WA), Smith; Brian E. (Knoxville, TN)
International Business Machines Corporation (Armonk, NY)
13/ 671,762
20130074097
November 8, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No. B554331 awarded by the Department of Energy. The Government has certain rights in this invention.