Thanks a lot for reply. This is little bit terrible news for me.
However, as far I know garnet1.0 don't have the deadlock issue with Torus. Please let me know how can I implement a VC partitioning scheme. Is it possible? I can configure the routing algorithm with particular channel selection, but I have no idea of VC partitioning in gem5. Please help me. Thanks again. Faisal On Mon, Jul 24, 2017 at 10:33 PM, Krishna, Tushar <tus...@ece.gatech.edu> wrote: > Hi Faisal, > The Torus topology deadlocks as it has rings in each dimension unless one > implements a VC partitioning scheme or bubble flow control. That's why I > removed torus from the default topologies provided by garnet2.0. If you > implement torus, you will have to implement deadlock freedom. > > Cheers, > Tushar > > > On Jul , 2017, at 5:56 PM, F. A. Faisal <dipu.7...@gmail.com> wrote: > > Dear All, > > I like to simulate the synthetic traffic analysis for Torus for 256 nodes > with uniform traffic. > However, the network is showing latency degradation after 0.14 injection > rate (flit latency = 33.044985 for 0.14 and flit latency = 38.244770 for > 0.13 ), which could be the possible case of network deadlocked. > I configured the garnet 2.0 with all the default settings (4 vc + 16 > bandwith factor) and Mesh network is also performing properly. As the > number of VC is 4, Torus should not be in a deadlock. > > I also like to share the network file as attachment. > And please consider the simulation condition as below- > > ./build/Garnet_standalone/gem5.debug configs.py/example/garnet_ > synth_traffic --num-cpus=256 --num-dirs=256 --network=garnet2.0 > --topology=Torus_XY --mesh-rows=16 --sim-cycles=20000 > --synthetic=uniform_random --injectionrate=0.14 --routing-algorithm=0 -- > vcs-per-vnet=4 > > > Please let me know how to resolve this issue for Garnet 2.0. > > > Thanks and best regards, > > > F.A. Faisal > > <Torus_XY.py> > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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