Hi, Did anyone know how to add branch prediction in TimingSimpleCPU. The branch prediction is defined in the base.cc but I don't know how to connect it with the TimingSimpleCPU. Please help me with this. Thank you Jeena Samuel

Hi Jeena, If you look at the src/cpu/simple/BaseSimpleCPU.py file, you will see that the branchpred is initialized as NULL: "branchPred = Param.BranchPredictor(NULL, "Branch Predictor")" So, you need to initialize the branchPred parameter to some real branchPred object in the python script you are using to run a gem5 simulation. For an example, you can look at how the branchPred is initialized in src/cpu/o3/BaseO3CPU.py. -Ayaz On Thu, Jun 23, 2022 at 9:41 PM Jeena Samuel <jeenasamuel30@gmail.com> wrote: > Hi, > Did anyone know how to add branch prediction in TimingSimpleCPU. The > branch prediction is defined in the base.cc but I don't know how to connect > it with the TimingSimpleCPU. Please help me with this. > > Thank you > Jeena Samuel > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org >

Ok Thank You Ayaz. Let me check and get back to you. On Thu, Jul 14, 2022 at 11:07 AM Ayaz Akram <yazakram@ucdavis.edu> wrote: > Hi Jeena, > > If you look at the src/cpu/simple/BaseSimpleCPU.py file, you will see that > the branchpred is initialized as NULL: > > "branchPred = Param.BranchPredictor(NULL, "Branch Predictor")" > > So, you need to initialize the branchPred parameter to some real > branchPred object in the python script you are using to run a gem5 > simulation. For an example, you can look at how the branchPred is > initialized in src/cpu/o3/BaseO3CPU.py. > > -Ayaz > > On Thu, Jun 23, 2022 at 9:41 PM Jeena Samuel <jeenasamuel30@gmail.com> > wrote: > >> Hi, >> Did anyone know how to add branch prediction in TimingSimpleCPU. The >> branch prediction is defined in the base.cc but I don't know how to connect >> it with the TimingSimpleCPU. Please help me with this. >> >> Thank you >> Jeena Samuel >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-leave@gem5.org >> > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org >