Hi Reyad, Sharing the disk image and kernel should not be a problem. I will suggest you to make sure that the OOM (out of memory) killer is not getting activated on the system (usually logged in /var/log/messages).
Regards, Ayaz On Fri, Feb 7, 2020 at 4:53 PM Hafizul Islam Reyad <reyad...@gmail.com> wrote: > > > Hi, > > > > I am new to gem5 and I was trying to run multiple benchmarks on gem5 to > get some results for my research. I face a issue that whenever I run > multiple gem5 simulations on one disk image, some of the gem5 process exits > without giving any results or errors. > > > > For example, I have about 20 microbenchmarks and 3 gem5 configurations > (e.g. different cachesize/ memory size etc.). So when I start a benchmark > run, I use one disk image and one kernel to run all these simulations (20 > microbenchmarks * 3 gem configs = 60 simulations). Out of these 60 > simulations, some of gem process (about 10) stops without giving any error > or exit message. When I run the incomplete benchmarks again (using the same > command), they finish successfully. > > > > My question is that if I share the same disk image and kernel across a lot > of simultaneous gem5 simulation, does this cause any issue? If not, what > might be the possible reason for this? > > > > I ran my simulations in a bare-metal AWS server that had 72 threads and > 512 GB memory, so I don't think resource was an issue. > > > > Example gem5 script: > > > > build/X86_MESI_Two_Level/gem5.opt --outdir=x configs/example/fs.py > --kernel=binaries/x86_64-vmlinux-3.4.112.smp > --disk-image=disks/x86_benchmark.img --script=test.rcS > --cpu-type=AtomicSimpleCPU --num-cpus=4 --caches --l1d_size=64kB > --l1i_size=64kB --l1d_assoc=2 --l1i_assoc=2 --l2cache --l2_size=16MB > --num-l2caches=4 --l2_assoc=8 --mem-channels=2 --mem-ranks=2 --mem-size=2GB > --ruby --num-dirs=2 --smt --network=garnet2.0 --topology=Mesh_XY > --mesh-rows=2 > > > > > > Thank you > > With regards, > > Reyad > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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