Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ce source can select up to XLIDs to route I-message back to the sink based on QoS requirement The max value of x is the number of neighbor nodes Each DLID value corresponds to a DSP indicator In the T-tree, the leaf nodes has no ULID and NS indicator since sources are destination of S-message A source can receive xS-message since it has x neighbors Route associated with the first received S-message is considered shortest route Sources selects neighbor node to send I-message back to sink based on the QoS requirement of INS SER 2. Route Selection Once the sources receive the S-message, they determine the QoS requirement of task in the S-message There are four types of streams for communication between sources and sinks and each stream can either be level-1 or level-2: Type 1: Time Critical But Not Data Critical Type 2: Data Critical But Not Time Critical Type 3: Not Time and Data Critical Type 1: Data and Time Critical After the sources select the neighbor nodes, the sources broadcast an N-message to their neighbors indicating the level and size of the stream N-message contains the following fields: TID NAP LID SLID MES SLID: Selected ID MES: Message SER 2. Route Selection If stream is level-1, = 0 (width of the stream) At level-1, messages are routed back to the sink via hop-by-hop communication. Message are sent to only one node Level-2 stream cont...
View Full Document

This note was uploaded on 08/25/2011 for the course EEL 5937 taught by Professor Staff during the Spring '08 term at University of Central Florida.

Ask a homework question - tutors are online