Hello. I want to estimate the power and area of some Network-on-Chip topologies using DSENT. I have followed the instructions in gem5-users given by Dr. Krishna (https://www.mail-archive.com/gem5-users@gem5.org/msg15749.html) for this purpose. First, I simulated a Mesh_XY topology with synthetic traffic using this command: build/NULL/gem5.opt configs/example/garnet_synth_traffic.py --network=garnet --num-cpus=64 --num-dirs=64 --topology=Mesh_XY --mesh-rows=8 --sim-cycles=10000000 --synthetic=uniform_random --precision=3 --injectionrate=0.02 --router-latency=1 --link-latency=1 --link-width-bits=16 --routing-algorithm=0 Then, I built dsent using this command: python ./util/on-chip-network-power-area.py . m5out ext/dsent/configs/router.cfg ext/dsent/configs/electrical-link.cfg After that, it compiles dsent, but it gives this error: ("ERROR: Garnet network not used in '", './m5out/config.ini') To get past this error, I changed line 70 in on-chip-network-power-area.py from [image: before.png] to [image: after.png] But now I get the following error: Traceback (most recent call last): File "./util/on-chip-network-power-area.py", line 219, in <module> main() File "./util/on-chip-network-power-area.py", line 216, in main buffers_per_control_vc, ni_flit_size_bits) File "./util/on-chip-network-power-area.py", line 161, in parseStats ["grep", pattern, stats_file]), '\n', -1) File "/usr/lib/python2.7/subprocess.py", line 223, in check_output raise CalledProcessError(retcode, cmd, output=output) subprocess.CalledProcessError: Command '['grep', 'sim_seconds', './m5out/stats.txt']' returned non-zero exit status 1 It seems that on-chip-network-power-area.py cannot parse the stats. What causes this error to happen and how can I fix it?
Warm regards, Ali
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