If you apply the relation chain on gerrit, it might work. See https://gem5-review.googlesource.com/c/public/gem5/+/35836/
That relation chain has not been merged, unfortunately. Cheers, Jason On Thu, Sep 8, 2022 at 1:02 PM Abdelrahman S. Hussein < abdelrahman.sob...@gmail.com> wrote: > Hi Prof, > > Thanks a lot for your response. Is there any update regarding this ticket? > https://gem5.atlassian.net/browse/GEM5-332 > > Correct me if I'm wrong, but I think your response implies that the > hyperthreading is implemented by maybe not tested. If so, this is confusing > me a bit, given the link I included above. > > I forgot to mention that I am using x86. > > Thanks. > > -- > > *Best,Abdelrahman Hussein* > MSc. Student -- Graduate RA/TA > School of Computing Sciences > Simon Fraser University, Canada > > > On Thu, Sep 8, 2022 at 7:51 AM Jason Lowe-Power <ja...@lowepower.com> > wrote: > >> Hello, >> >> In this case "Thread" means hardware context in the CPU (e.g., Intel >> hyperthreads), not *core*. >> >> Have you configured your O3CPU to have 8 hardware contexts? >> >> I'll give a few short pointers: >> 1. SPEC is single threaded (unless running SPEC rate), so there may not >> be other software threads executing on the system >> 2. Multithreaded cores are not tested at all in gem5. They may work, or >> they may not. >> 3. I have never seen anyone try to use more than two hardware contexts in >> a core in gem5. I wouldn't be surprised if 8 hardware contexts have never >> been tested. >> >> To debug this, I would probably start by having multiple CPU cores and >> making sure things work as expected. If so, then I would try 2 threads per >> core to see if it works, then go to 4 or 8. >> >> Cheers, >> Jason >> >> On Thu, Sep 8, 2022 at 2:55 AM Abdelrahman S. Hussein < >> abdelrahman.sob...@gmail.com> wrote: >> >>> Hello, >>> >>> I am running a multithreaded workload on the O3 CPU in Full System Mode. >>> The workload is SPEC OMP. I am running from a checkpoint that was taken in >>> the middle of running the benchmark. I am using the following debugging >>> flags to monitor the system >>> Thread,Faults,Fetch,O3CPU >>> >>> However, looking at the debugging file, I always see that the fetcher >>> only fetches from tid: 0, which means the CPU does not switch to any other >>> Thread at all. I am sure that my workload runs on 8 threads (cooperating >>> threads). >>> >>> So, does this mean that gem5 does not support running multithreaded >>> workloads? Or, am I missing something or watching the wrong debug prints? >>> >>> Thanks. >>> >>> -- >>> >>> *Best,Abdelrahman Hussein* >>> MSc. Student -- Graduate RA/TA >>> School of Computing Sciences >>> Simon Fraser University, Canada >>> _______________________________________________ >>> gem5-users mailing list -- gem5-users@gem5.org >>> To unsubscribe send an email to gem5-users-le...@gem5.org >>> >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-le...@gem5.org >> > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org >
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