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Title: Message passing with queues and channels

Patent ·
OSTI ID:1096003

In an embodiment, a send thread receives an identifier that identifies a destination node and a pointer to data. The send thread creates a first send request in response to the receipt of the identifier and the data pointer. The send thread selects a selected channel from among a plurality of channels. The selected channel comprises a selected hand-off queue and an identification of a selected message unit. Each of the channels identifies a different message unit. The selected hand-off queue is randomly accessible. If the selected hand-off queue contains an available entry, the send thread adds the first send request to the selected hand-off queue. If the selected hand-off queue does not contain an available entry, the send thread removes a second send request from the selected hand-off queue and sends the second send request to the selected message unit.

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):
8,543,722
Application Number:
12/750,363
OSTI ID:
1096003
Country of Publication:
United States
Language:
English

References (4)

Investigation of crosstalk performance of eight-channel p-i-n/HBT OEIC photoreceiver array modules journal May 1996
Reassembly of data fragments in fixed size buffers patent May 2008
IP address resolution methods and apparatus patent February 2006
A Multithreaded Message Passing Interface (MPI) Architecture: Performance and Program Issues journal April 2001

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