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Title: Optimized collectives using a DMA on a parallel computer

Abstract

Optimizing collective operations using direct memory access controller on a parallel computer, in one aspect, may comprise establishing a byte counter associated with a direct memory access controller for each submessage in a message. The byte counter includes at least a base address of memory and a byte count associated with a submessage. A byte counter associated with a submessage is monitored to determine whether at least a block of data of the submessage has been received. The block of data has a predetermined size, for example, a number of bytes. The block is processed when the block has been fully received, for example, when the byte count indicates all bytes of the block have been received. The monitoring and processing may continue for all blocks in all submessages in the message.

Inventors:
 [1];  [2];  [3];  [4]
  1. Croton On Hudson, NY
  2. Ardsley, NY
  3. Irvington, NY
  4. Cortlandt Manor, NY
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1018039
Patent Number(s):
7886084
Application Number:
11/768,645
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
B554331
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Jun 26
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Chen, Dong, Gabor, Dozsa, Giampapa, Mark E., and Heidelberger, Phillip. Optimized collectives using a DMA on a parallel computer. United States: N. p., 2011. Web.
Chen, Dong, Gabor, Dozsa, Giampapa, Mark E., & Heidelberger, Phillip. Optimized collectives using a DMA on a parallel computer. United States.
Chen, Dong, Gabor, Dozsa, Giampapa, Mark E., and Heidelberger, Phillip. Tue . "Optimized collectives using a DMA on a parallel computer". United States. https://www.osti.gov/servlets/purl/1018039.
@article{osti_1018039,
title = {Optimized collectives using a DMA on a parallel computer},
author = {Chen, Dong and Gabor, Dozsa and Giampapa, Mark E. and Heidelberger, Phillip},
abstractNote = {Optimizing collective operations using direct memory access controller on a parallel computer, in one aspect, may comprise establishing a byte counter associated with a direct memory access controller for each submessage in a message. The byte counter includes at least a base address of memory and a byte count associated with a submessage. A byte counter associated with a submessage is monitored to determine whether at least a block of data of the submessage has been received. The block of data has a predetermined size, for example, a number of bytes. The block is processed when the block has been fully received, for example, when the byte count indicates all bytes of the block have been received. The monitoring and processing may continue for all blocks in all submessages in the message.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {2}
}

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