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Multiple node remote messaging

United States Patent

August 31, 2010
View the Complete Patent at the US Patent & Trademark Office
A method for passing remote messages in a parallel computer system formed as a network of interconnected compute nodes includes that a first compute node (A) sends a single remote message to a remote second compute node (B) in order to control the remote second compute node (B) to send at least one remote message. The method includes various steps including controlling a DMA engine at first compute node (A) to prepare the single remote message to include a first message descriptor and at least one remote message descriptor for controlling the remote second compute node (B) to send at least one remote message, including putting the first message descriptor into an injection FIFO at the first compute node (A) and sending the single remote message and the at least one remote message descriptor to the second compute node (B).
Blumrich; Matthias A. (Ridgefield, CT), Chen; Dong (Croton on Hudson, NY), Gara; Alan G. (Mount Kisco, NY), Giampapa; Mark E. (Irvington, NY), Heidelberger; Philip (Cortlandt Manor, NY), Ohmacht; Martin (Yorktown Heights, NY), Salapura; Valentina (Chappaqua, NY), Steinmacher-Burow; Burkhard (Esslingen, DE), Vranas; Pavlos (Danville, CA)
International Business Machines Corporation (Armonk, NY)
11/ 768,784
June 26, 2007
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract. No. B554331 awarded by the Department of Energy.