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Title: Fencing network direct memory access data transfers in a parallel active messaging interface of a parallel computer

Abstract

Fencing direct memory access (`DMA`) data transfers in a parallel active messaging interface (`PAMI`) of a parallel computer, the PAMI including data communications endpoints, each endpoint including specifications of a client, a context, and a task, the endpoints coupled for data communications through the PAMI and through DMA controllers operatively coupled to a deterministic data communications network through which the DMA controllers deliver data communications deterministically, including initiating execution through the PAMI of an ordered sequence of active DMA instructions for DMA data transfers between two endpoints, effecting deterministic DMA data transfers through a DMA controller and the deterministic data communications network; and executing through the PAMI, with no FENCE accounting for DMA data transfers, an active FENCE instruction, the FENCE instruction completing execution only after completion of all DMA instructions initiated prior to execution of the FENCE instruction for DMA data transfers between the two endpoints.

Inventors:
;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1190912
Patent Number(s):
9075759
Application Number:
12/940,282
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
B554331
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Nov 05
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Blocksome, Michael A., and Mamidala, Amith R. Fencing network direct memory access data transfers in a parallel active messaging interface of a parallel computer. United States: N. p., 2015. Web.
Blocksome, Michael A., & Mamidala, Amith R. Fencing network direct memory access data transfers in a parallel active messaging interface of a parallel computer. United States.
Blocksome, Michael A., and Mamidala, Amith R. Tue . "Fencing network direct memory access data transfers in a parallel active messaging interface of a parallel computer". United States. https://www.osti.gov/servlets/purl/1190912.
@article{osti_1190912,
title = {Fencing network direct memory access data transfers in a parallel active messaging interface of a parallel computer},
author = {Blocksome, Michael A. and Mamidala, Amith R.},
abstractNote = {Fencing direct memory access (`DMA`) data transfers in a parallel active messaging interface (`PAMI`) of a parallel computer, the PAMI including data communications endpoints, each endpoint including specifications of a client, a context, and a task, the endpoints coupled for data communications through the PAMI and through DMA controllers operatively coupled to a deterministic data communications network through which the DMA controllers deliver data communications deterministically, including initiating execution through the PAMI of an ordered sequence of active DMA instructions for DMA data transfers between two endpoints, effecting deterministic DMA data transfers through a DMA controller and the deterministic data communications network; and executing through the PAMI, with no FENCE accounting for DMA data transfers, an active FENCE instruction, the FENCE instruction completing execution only after completion of all DMA instructions initiated prior to execution of the FENCE instruction for DMA data transfers between the two endpoints.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {7}
}

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Works referenced in this record:

Managing Multiple Communication Methods in High-Performance Networked Computing Systems
journal, January 1997


The deep computing messaging framework: generalized scalable message passing on the blue gene/P supercomputer
conference, January 2008


MPI-LAPI: an efficient implementation of MPI for IBM RS/6000 SP systems
journal, January 2001


Hybrid parallel programming with MPI and unified parallel C
conference, January 2010


Managing Multiple Communication Methods in High-Performance Networked Computing Systems
journal, January 1997


A task migration implementation of the Message-Passing Interface
conference, January 1996