Performing a local reduction operation on a parallel computer

Patent · Tue Dec 11 04:00:00 EST 2012

OSTI ID:1082353

Blocksome, Michael A.; Faraj, Daniel A.

A parallel computer including compute nodes, each including two reduction processing cores, a network write processing core, and a network read processing core, each processing core assigned an input buffer. Copying, in interleaved chunks by the reduction processing cores, contents of the reduction processing cores' input buffers to an interleaved buffer in shared memory; copying, by one of the reduction processing cores, contents of the network write processing core's input buffer to shared memory; copying, by another of the reduction processing cores, contents of the network read processing core's input buffer to shared memory; and locally reducing in parallel by the reduction processing cores: the contents of the reduction processing core's input buffer; every other interleaved chunk of the interleaved buffer; the copied contents of the network write processing core's input buffer; and the copied contents of the network read processing core's input buffer.

• Research Organization: International Business Machines Corporation, Armonk, NY (United States)
• Sponsoring Organization: USDOE
• Assignee: International Business Machines Corporation (Armonk, NY)
• Patent Number(s): 8,332,460
• Application Number: 12/760,020
• OSTI ID: 1082353
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING