Signaling completion of a message transfer from an origin compute node to a target compute node
- Rochester, MN
Signaling completion of a message transfer from an origin node to a target node includes: sending, by an origin DMA engine, an RTS message, the RTS message specifying an application message for transfer to the target node from the origin node; receiving, by the origin DMA engine, a remote get message containing a data descriptor for the message and a completion notification descriptor, the completion notification descriptor specifying a local direct put transfer operation for transferring data locally on the origin node; inserting, by the origin DMA engine in an injection FIFO buffer, the data descriptor followed by the completion notification descriptor; transferring, by the origin DMA engine to the target node, the message in dependence upon the data descriptor; and notifying, by the origin DMA engine, the application that transfer of the message is complete in dependence upon the completion notification descriptor.
- Research Organization:
- International Business Machines Corporation, Armonk, NY (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Number(s):
- 7,948,999
- Application Number:
- 11/744,319
- OSTI ID:
- 1019534
- Country of Publication:
- United States
- Language:
- English
The Blue Gene/L Supercomputer: A Hardware and Software Story
|
journal | May 2007 |
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