DMA engine for repeating communication patterns

Patent · Tue Sep 21 00:00:00 EDT 2010

OSTI ID:1017165

Chen, Dong ^[1]; Gara, Alan G ^[2]; Giampapa, Mark E ^[3]; Heidelberger, Philip ^[4]; Steinmacher-Burow, Burkhard ^[5]; Vranas, Pavlos ^[6]

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1. Croton on Hudson, NY
2. Mount Kisco, NY
3. Irvington, NY
4. Cortlandt Manor, NY
5. Esslingen, DE
6. Danville, CA

A parallel computer system is constructed as a network of interconnected compute nodes to operate a global message-passing application for performing communications across the network. Each of the compute nodes includes one or more individual processors with memories which run local instances of the global message-passing application operating at each compute node to carry out local processing operations independent of processing operations carried out at other compute nodes. Each compute node also includes a DMA engine constructed to interact with the application via Injection FIFO Metadata describing multiple Injection FIFOs where each Injection FIFO may containing an arbitrary number of message descriptors in order to process messages with a fixed processing overhead irrespective of the number of message descriptors included in the Injection FIFO.

• Research Organization: International Business Machines Corp., Armonk, NY (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: B554331
• Assignee: International Business Machines Corporation (Armonk, NY)
• Patent Number(s): 7,802,025
• Application Number: 11/768,795
• OSTI ID: 1017165
• Country of Publication: United States
• Language: English