Hello, L3 cache is not implemented in gem5 but you can manually implement it (and add a command line option such as --l3caches), unless you are using ruby (as far as I know due to not having a 3-level coherence protocol).
You may want to check this tutorial for more information about adding caches: http://pages.cs.wisc.edu/~david/courses/cs752/Spring2015/gem5-tutorial/part1/cache_config.html Hope this helps Cheers Serhat ________________________________________ From: gem5-users [gem5-users-boun...@gem5.org] on behalf of Moussa, Ayman [ayman.mouss...@imperial.ac.uk] Sent: 27 February 2017 11:43 To: gem5 users mailing list Subject: [gem5-users] l3 cache Does the standard system call script (se.py) model an L3 cache or is it only L1 and L2? When I ran it with the -h option, I saw an option for L3 caches so I used that: build/ARM/gem5.opt configs/example/se.py --caches --l2cache --num-dirs=1 --num-l2caches=1 --num-l2caches=1 --l1d_size=16kB --l1i_size=16kB --l2_size=64kB --l3_size=128kB --l1d_assoc=4 --l1i_assoc=4 --l2_assoc=8 --l3_assoc=16 --cpu-type=DerivO3CPU --mem-type=DDR3_2133_x64 -c tests/test-progs/hello/bin/arm/linux/hello but when I check the output of stats.txt and config.ini, there is no data about L3 caches which was driving me crazy as it was in the options. I checked the se.py too and didn't see anything specifying L3 caches (maybe I'm looking in the wrong place?) If I want to model an L3 cache, do I need to manually add it? Thanks Ayman _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
