Re: [Gems-users] Network Destination generation problem in Garnet NI

[Niket Agarwal <niketa@xxxxxxxxxxxxx>]

There is nothing in Garnet that restricts the no. of cores/nodes. If  
you are having more than 32 cores/L2 caches/memories, the duplication  
of packets happen due to a optimization in Set.h in ruby. You can  
correct that. Take a look at https://lists.cs.wisc.edu/archive/gems-users/2008-May/msg00013.shtml
Cheers,
Niket

On Nov 18, 2009, at 9:56 AM, Jianchen Hu wrote:

> Hi,
>
> I use Garnet network tester to run with random traffic. And when I  
> try a large network (128-node), the network interface will generate  
> multiple transaction for the same message. I use MOESI_SMP_directory  
> protocol and I think all the messages should be unicast, like the  
> case of 32-node or 64-node network.
> But in a 128-node network with CROSSBAR topology, the NI will  
> generate 2 transactions for the same message to the same  
> destination. (dest_nodes.size() == 2) So I got double flit count.
> Is it a bug in Garnet or I miss something ?
>
> Thanks.
> Jianchen Hu
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