Thanks a lot Tushar for your explanation. Pavan
On Mon, Jan 30, 2012 at 3:06 PM, Tushar Krishna <tus...@csail.mit.edu>wrote: > ** > Hi Pavan, > > Virtual networks carry different coherence message types to avoid protocol > level deadlocks in gem5. > As a simplest example, vnet 0 might carry requests and vnet 1 might carry > responses. > Thus each vnet has its own set of buffers to avoid deadlocks. > > Each vnet itself can have one or more virtual channels (VCs) for > performance reasons (to avoid head of line blocking etc). > VCs within vnets that carry control messages (typically 1-flit wide) are 1 > buffer deep. > VCs within vnets that carry data messages (typically 5-flit wide) are > typically more than 1 buffer deep. > > - Tushar > > > > On 01/30/2012 01:48 PM, Pavan Poluri wrote: > > Hi Tushar, > > Thanks for the tip!! Now, I am able to run the code without it being > aborted. I am also able to see some network related statistics in the > ruby.stats file. > > I am trying to understand how the router architecture has been modeled > within garnet. There are two fields which I am not able to understand as to > what do they mean. > > 1. m_virtual_networks -> number of virtual networks > 2. m_vc_per_vnet -> number of vcs per virtual network > > What does number of virtual networks mean? > > Thanks, > Pavan > > On Jan 28, 2012, at 12:55 PM, Tushar Krishna wrote: > > Hi Pavan, > I don't think its been pushed yet as I didnt see any email either. > This is the thread I am talking about: > http://www.mail-archive.com/gem5-dev@gem5.org/msg02546.html > > If you are in a hurry, perhaps you can just add the change yourself in > ruby_network_test.py into your local repo: > > ruby_port.access_phys_mem = False > i += 1 > # ADD THE FOLLOWING LINE: > > system.system_port = system.ruby._sys_port_proxy.port > > > But remember to remove it when you do a hg pull -u later when the patch > gets pushed in. > > cheers, > Tushar > > > On 1/28/12 2:19 PM, Pavan Poluri wrote: > > Hi Tushar, > > I did not receive any emails regarding the patch for the issue with > GARNET. I was just wondering may be I subscribed to a different list and > the patch is already out. Has the patch been approved and already out in > the latest version of gems code? > > Thanks a lot!! > > Thanks, > Pavan > > On Jan 27, 2012, at 12:39 PM, Tushar Krishna wrote: > > No emails related to code reviews and changes only come on the dev list. > > > On 1/27/12 2:18 PM, Pavan Poluri wrote: > > Hi Tushar, > > I am currently building gem5 binary with MOESI_hammer. I will try to > invoke garnet with that binary as you suggested after it is done. As per > the patch, can I subscribe to the gem5-dev list to receive the emails > regarding it or do those emails appear on gem5-users list too? > > Thanks, > Pavan > > On Fri, Jan 27, 2012 at 11:57 AM, Tushar Krishna <tus...@csail.mit.edu>wrote: > >> Hi Pavan, >> I saw Nilay approve the patch on the gem5-dev mailing list today so just >> wait for the author of the patch (Andreas) to push it in. You will see an >> email on the gem5-dev list when he does that. >> >> The Network_test protocol is tied to the ruby_network_test.py script. >> It basically allows you to perform network-only simulations. >> By running a different protocol, I meant building MOESI_hammer or >> MOESI_CMP_directory for instance, and running it with ruby_random_test.py, >> ruby_se.py and so on. >> Basically garnet itself can be plugged in when running any protocol. >> If you do want to run garnet-only simulations, I would say wait for the >> patch to be pushed in and then perform a hg pull -u and run the same >> command you ran earlier. >> >> ruby_network_test.py seems to have broken recently due to some other >> changes. >> >> cheers, >> Tushar >> >> >> >> On 1/27/12 1:51 PM, Pavan Poluri wrote: >> >> Hi Tushar, >> >> Thank you for your quick reply. Can you please tell me how can I get >> access to this patch you are suggesting? And also you said that with any >> other protocol garnet would work fine. I did not really understand the >> statement. Does changing the protocol mean running a different python >> script instead of ruby_network_test.py or changing the topology? >> >> Thanks, >> Pavan >> >> On Jan 27, 2012, at 11:28 AM, Tushar Krishna wrote: >> >> Yeah the warnings are always there but they are not a problem. The >> specific error with regard to the system port are specific to the ruby >> network tester which the patch fixes. >> If you run garnet with any other protocol, it should work fine. >> >> - Tushar >> >> >> On 1/27/12 1:26 PM, Malogro wrote: >> >> I've been running Garnet Networks for a while in GEM5 and I've always had >> those warnings. They do not seem to interfere with the overall results (not >> the ones I'm using anyway) >> >> Also, the warnings don't appear in flexible pipeline Garnets. Have you >> tried that to see what happens? >> >> Your command line ran just fine over here both in the debug and opt >> versions (provided the missing space after --fixed-pkts was a typo) >> >> If you still have no success, I'd do what Tushar said and wait for the >> patch to be pushed. >> >> Regards, >> >> Alexandre Yasuo Yamamoto >> >> >> On Fri, Jan 27, 2012 at 11:17 AM, Tushar Krishna <tus...@csail.mit.edu>wrote: >> >>> Hi Pavan, >>> As you probably noticed, a patch has just been approved on the gem5-dev >>> list to fix this issue... >>> Keep a look out on that list for the patch to be pushed, and then try it >>> .. >>> >>> cheers, >>> Tushar >>> >>> >>> >>> On 1/27/12 1:11 AM, Pavan Poluri wrote: >>> >>> Hello, >>> >>> I am trying to invoke garnet module in gem5. >>> >>> As given in the documentation I built gem5 binary using >>> *scons build/ALPHA_SE_Network_Test/gem5.debug* >>> >>> After that, I executed the following command >>> *./build/ALPHA_SE_Network_test/gem5.debug >>> configs/example/ruby_network_test.py --num-cpus=16 --num-dirs=16 >>> --topology=Mesh --mesh-rows=4 --sim-cycles=1000 --injectionrate=0.01 >>> --synthetic=0 --fixed-pkts--maxpackets=1 --garnet-network=fixed* >>> >>> I get a lot of warning messages that say >>> *warning: add_child('cls') : child 'credit_links0 credit_links1' already >>> has parent* >>> >>> and then a panic message like the following is displayed >>> *panic: System port on system is not connected.* (I checked out this >>> message is printed from system.cc file in sim directory which is under src >>> directory)*Program aborted at cycle 0. >>> Aborted.* >>> >>> I have tried reading through the documentation as well as the Frequently >>> Asked Questions to find out a solution for it. I was not able to. >>> >>> Any help/advice on solving this issue is greatly appreciated. >>> >>> Thanks for your time. >>> >>> Thanks, >>> Pavan >>> >>> >>> >>> _______________________________________________ >>> gem5-users mailing >>> listgem5-users@gem5.orghttp://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 >>> >> >> >> >> _______________________________________________ >> gem5-users mailing >> listgem5-users@gem5.orghttp://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 >> >> >> >> >> _______________________________________________ >> gem5-users mailing >> listgem5-users@gem5.orghttp://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 >> > > > > _______________________________________________ > gem5-users mailing > listgem5-users@gem5.orghttp://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 > > > > > _______________________________________________ > gem5-users mailing > listgem5-users@gem5.orghttp://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 > > > > _______________________________________________ > gem5-users mailing > listgem5-users@gem5.orghttp://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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