Garnet doesn’t let more than one packet per VC .. so with single flit packets and a single VC the credit turnaround time will limit throughput ..
My guess is the paper you mentioned allows multiple packets per VC.. bcoz that’s what strictly wormhole is .. Cheers, Tushar On Oct 11, 2024, at 4:35 PM, akavaler--- via gem5-users <gem5-users@gem5.org> wrote: Hello Krishna, Thank you for the fast respond! The paper that i was studying was talking about 1 filt packets with 1 vc-per-vnet (wormhole) and as the metrics that i collected are telling me (i dont know why the photos i provided are not visible) i already have 1 flit packets ( FlitsIjected == PacketsInjected , so the link-width-bits = 1024 is more than enough). Form the paper the congestion should start happening above 0.075 packets/node/cycle and not at 0.065 as garnet is showning me here. Thats the problem…. uniform_randomwith1vcand1flit: InjectionRate AverageFlitQueueingLatency AverageFlitNetworkLatency AverageFlitLatency AveragePacketQueueingLatency AveragePacketNetworkLatency AveragePacketLatency FlitsInjected FlitsReceived PacketsInjected PacketsReceived AverageHops 0.01 2110.250345 13836.06185 15946.3122 2110.250345 13836.06185 15946.3122 127677 127664 127677 127664 5.249366 0.015 2176.55784 14051.43619 16227.99403 2176.55784 14051.43619 16227.99403 192156 192141 192156 192141 5.255026 0.02 2251.20415 14289.92414 16541.12829 2251.20415 14289.92414 16541.12829 256420 256405 256420 256405 5.255424 0.025 2327.898415 14549.2637 16877.16211 2327.898415 14549.2637 16877.16211 320543 320520 320543 320520 5.251703 0.03 2427.341709 14874.98048 17302.32219 2427.341709 14874.98048 17302.32219 384328 384292 384328 384292 5.249984 0.035 2545.057922 15269.61109 17814.66901 2545.057922 15269.61109 17814.66901 448141 448101 448141 448101 5.249924 0.04 2707.391898 15755.96321 18463.35511 2707.391898 15755.96321 18463.35511 511800 511763 511800 511763 5.247974 0.045 2938.631156 16421.48544 19360.11659 2938.631156 16421.48544 19360.11659 575744 575683 575744 575683 5.25208 0.05 3354.394007 17314.71256 20669.10657 3354.394007 17314.71256 20669.10657 639705 639644 639705 639644 5.250088 0.055 4301.373952 18705.94991 23007.32386 4301.373952 18705.94991 23007.32386 703661 703591 703661 703591 5.25145 0.06 7323.253138 20918.07593 28241.32906 7323.253138 20918.07593 28241.32906 767327 767247 767327 767247 5.247669 0.065 33369.62551 25298.39128 58668.01679 33369.62551 25298.39128 58668.01679 831131 831033 831131 831033 5.251095 0.07 2658109.712 29815.79864 2687925.51 2658109.712 29815.79864 2687925.51 869634 869505 869634 869505 5.223994 thank you! _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org
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