Chaining direct memory access data transfer operations for compute nodes in a parallel computer
Abstract
Methods, systems, and products are disclosed for chaining DMA data transfer operations for compute nodes in a parallel computer that include: receiving, by an origin DMA engine on an origin node in an origin injection FIFO buffer for the origin DMA engine, a RGET data descriptor specifying a DMA transfer operation data descriptor on the origin node and a second RGET data descriptor on the origin node, the second RGET data descriptor specifying a target RGET data descriptor on the target node, the target RGET data descriptor specifying an additional DMA transfer operation data descriptor on the origin node; creating, by the origin DMA engine, an RGET packet in dependence upon the RGET data descriptor, the RGET packet containing the DMA transfer operation data descriptor and the second RGET data descriptor; and transferring, by the origin DMA engine to a target DMA engine on the target node, the RGET packet.
- Inventors:
-
- Rochester, MN
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1015777
- Patent Number(s):
- 7805546
- Application Number:
- 11/829,325
- 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
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Archer, Charles J, and Blocksome, Michael A. Chaining direct memory access data transfer operations for compute nodes in a parallel computer. United States: N. p., 2010.
Web.
Archer, Charles J, & Blocksome, Michael A. Chaining direct memory access data transfer operations for compute nodes in a parallel computer. United States.
Archer, Charles J, and Blocksome, Michael A. Tue .
"Chaining direct memory access data transfer operations for compute nodes in a parallel computer". United States. https://www.osti.gov/servlets/purl/1015777.
@article{osti_1015777,
title = {Chaining direct memory access data transfer operations for compute nodes in a parallel computer},
author = {Archer, Charles J and Blocksome, Michael A},
abstractNote = {Methods, systems, and products are disclosed for chaining DMA data transfer operations for compute nodes in a parallel computer that include: receiving, by an origin DMA engine on an origin node in an origin injection FIFO buffer for the origin DMA engine, a RGET data descriptor specifying a DMA transfer operation data descriptor on the origin node and a second RGET data descriptor on the origin node, the second RGET data descriptor specifying a target RGET data descriptor on the target node, the target RGET data descriptor specifying an additional DMA transfer operation data descriptor on the origin node; creating, by the origin DMA engine, an RGET packet in dependence upon the RGET data descriptor, the RGET packet containing the DMA transfer operation data descriptor and the second RGET data descriptor; and transferring, by the origin DMA engine to a target DMA engine on the target node, the RGET packet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 28 00:00:00 EDT 2010},
month = {Tue Sep 28 00:00:00 EDT 2010}
}