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InfiniBand Network Architecture by MindShare, Inc., Tom Shanley

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The Scheduler

First, an Example Scenario to Define the Task

Refer to Figure 19-2 on page 477 and consider the following scenario. It is assumed that all of the QPs pictured in both CAs are RD QPs.

Figure 19-2. RD Scenario

On CA A, assume that three RD QPs (QP10, QP3, and QP6) each have WQEs at the head of their respective SQs. These three WQEs have the following characteristics:

  • The WQE currently at the head of QP10's SQ is a Send operation to send a message to QP5 in CA B using the RDC associated with local EEC1 in CA A.

  • The WQE currently at the head of QP3's SQ is an RDMA Write operation to write a message to QP10 in CA B using the RDC associated ...

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