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Title: Message passing with queues and channels

Patent ·
OSTI ID:1082868

In an embodiment, a reception thread receives a source node identifier, a type, and a data pointer from an application and, in response, creates a receive request. If the source node identifier specifies a source node, the reception thread adds the receive request to a fast-post queue. If a message received from a network does not match a receive request on a posted queue, a polling thread adds a receive request that represents the message to an unexpected queue. If the fast-post queue contains the receive request, the polling thread removes the receive request from the fast-post queue. If the receive request that was removed from the fast-post queue does not match the receive request on the unexpected queue, the polling thread adds the receive request that was removed from the fast-post queue to the posted queue. The reception thread and the polling thread execute asynchronously from each other.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
B554331
Assignee:
International Business Machines Corporation
Patent Number(s):
8,381,230
Application Number:
12/764,315
OSTI ID:
1082868
Country of Publication:
United States
Language:
English

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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