The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2008
Filed:
Jun. 23, 2003
Rajesh Kota, Austin, TX (US);
Shashank Nemawarkar, Austin, TX (US);
Guru Prasadh, Austin, TX (US);
Carl Zeitler, Tomball, TX (US);
David B. Glasco, Austin, TX (US);
Rajesh Kota, Austin, TX (US);
Shashank Nemawarkar, Austin, TX (US);
Guru Prasadh, Austin, TX (US);
Carl Zeitler, Tomball, TX (US);
David B. Glasco, Austin, TX (US);
Newisys, Inc., Austin, TX (US);
Abstract
Improved techniques are provided for reducing latency in inter-cluster communications within computer systems having a plurality of multi-processor clusters. The local nodes of each cluster include a plurality of processors and an interconnection controller. Intra-cluster links are formed between the local nodes, including the interconnection controller, within a cluster. Inter-cluster links are formed between interconnection controllers of different clusters. Intra-cluster packets may be encapsulated as inter-cluster packets and stored in a transmission buffer pending transmission on an inter-cluster link. When the transmission buffer is empty, a control character is transmitted on an inter-cluster link. The control character is not stored in the transmission buffer or in a reception buffer, but instead is dropped. Clock data may be embedded in symbols sent on each bit lane of the inter-cluster links, including the symbol(s) of the control character.