Thanks Hongxia for the reply.
I looked into the code and figured out that definitely there are virtual
networks present. What I gathered is:
- At the Coherence protocol level, different Message Buffers are
assigned different virtual network numbers. Thus the messages which get
into these buffers, will pass through only those particular virtual
network.
- At the network level, each switch picks from a particular Message
buffer (and hence knows the vnet) and outputs the message into the same
vnet of an outlink. Thus, as you had pointed out, a particular message
does not change it's virtual network during its whole life.
Please could you confirm that I am understanding it correctly.
I have one issue though. Suppose, a particular memory request is made by
a processor and its a cache miss and simics is stalled now. The request
messages flow around into the network and when they are served, simics
should be woken up. Where is this being done ?
Thanks for the help.
Niket.
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