For which workload combinations are you having the aforementioned problems? Can you give me some specific test cases for the problems you're encountering?
I think Rick Strong may have posted some patches related to SMT, but I'm not sure about that... On Fri, Feb 22, 2008 at 8:05 PM, Nam Duong <[EMAIL PROTECTED]> wrote: > > > > > Hi all, > > > > I am running SMT programs for the first time, and I encountered the > following issues: > > > > 1. In function removeThread() in cpu.cc, when a thread is removed, some > physical registers allocated for this thread are freed from the rename map. > However, a subset of these registers have actually been freed previously > from the history buffer in rename stage. This make them to be freed twice, > causing threads that are still executing to crash. I tried to fix this by > not allowing registers to be added into the freelist more than one time. The > simulator works for some workload combinations after this. > > > > 2. For some other combinations, the simulator crashed at line 701 in cpu.cc: > > assert(iew.ldstQueue.getCount(tid) == 0); > > This means that there are still outstanding memory instructions in the LSQ. > I added the following code just before the above line: > > iew.ldstQueue.squash(squash_seq_num, tid); > > And the simulator is working for those workloads. > > > > 3. In se.py, when checking for SMT workload, the way smt_process.cmd is set > seemed not working, since it was a string. I changed them similarly to line > 39 in that file, and it is working now. > > > > Currently I the simulator is working for my SMT programs. However, I am > wondering whether what I have done are correct, and there are things that > may affect the simulator but I did not see now. Is anyone there working with > SMT programs? Any ideas are appreciated. > > > > I am running O3CPU in SE mode using M5 2.0b4. > > > > Thanks, > > --Nam > _______________________________________________ > m5-users mailing list > m5-users@m5sim.org > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > -- ---------- Korey L Sewell Graduate Student - PhD Candidate Computer Science & Engineering University of Michigan _______________________________________________ m5-users mailing list m5-users@m5sim.org http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
