Re: [Gems-users] Network Topology

[Bradford Beckmann <beckmann@xxxxxxxxxxx>]

Sean,

Unfortunately there isn't a clean way to do this because the network
creation code abstracts all node, switches, and destinations to numbers.
However, one ugly way to determine how the network is connected and relate
it to the network utilization numbers is to print the consumer
descriptions of each link.  Unfortunately you'll have to add some code to
do this.  Basically you'll have to modify Switch.C to print the Consumer
description of the Throttle's output buffers.  If you're not comfortable
modifying the code, you can wait for us to add this feature to the next
release of GEMS.  Hopefully that will be soon.

Brad



On Thu, 6 Oct 2005, Sean Ryan Leventhal wrote:

> I have a heirarchical network, and I am trying to determine what is
> connected to what.  I have a set of switches in my output that look like
> this:
>
> switch_0_inlinks: 1
> switch_0_outlinks: 1
> links_utilized_percent_switch_0: 0.244679
>    links_utilized_percent_switch_0_link_0: 0.244679 bw: 10000 base_latency:
> 40
>
>    outgoing_messages_switch_0_link_0_Request_Control: 136800 1094400 [ 0
> 136800 0 0 ] base_latency: 40
>    outgoing_messages_switch_0_link_0_Response_Data: 79907 5753304 [ 79907 0
> 0 0 ] base_latency: 40
>    outgoing_messages_switch_0_link_0_Response_Control: 10864 86912 [ 10864
> 0 0 0 ] base_latency: 40
>    outgoing_messages_switch_0_link_0_Writeback_Data: 38 2736 [ 38 0 0 0 ]
> base_latency: 40
>    outgoing_messages_switch_0_link_0_Writeback_Control: 9183 73464 [ 9183 0
> 0 0 ] base_latency: 40
>    outgoing_messages_switch_0_link_0_Persistent_Control: 3150 25200 [ 0 0
> 3150 0 ] base_latency: 40
>
>
> However I don't know how to tell which machine is connected to which link,
> and which switch is connected to which switch.  Is there any way to tell?
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