The benchmark output of is more than likely running at a coarser granularity then your actual simulation's CPUs.
For instance, the actual code may be calling some "gettime"-like functions that ask for time in seconds but your CPUs are running say 2GHz and zooming through the parallel sections in less then a second of "simulated time". Thus you would get zeros in the benchmark output but the benchmark still did finish correctly. And yes, you should use gem5-dev in my opinion. On Fri, Jan 27, 2012 at 9:34 AM, Sangamesh K <[email protected]> wrote: > Hi All, > > I am gem5 beginner and I am trying to run splash benchmarks in ALPHA_SE > for an in-order CPU. The results obtained were all zeros. > > I am using gem-stable and command is as follows- > build/ALPHA_SE/gem5.opt configs/example/se.py --inorder --caches -c > ./../splash2/codes/kernels/fft/FFT -o "-t -p1" > > ----------------------------------------------------------------------------------------------------------------------------- > > FFT with Blocking Transpose > 1024 Complex Doubles > 1 Processors > 65536 Cache lines > 16 Byte line size > 4096 Bytes per page > > > PROCESS STATISTICS > Computation Transpose Transpose > Proc Time Time Fraction > 0 0 0 NaNQ > > TIMING INFORMATION > Start time : 0 > Initialization finish time : 0 > Overall finish time : 0 > Total time with initialization : 0 > Total time without initialization : 0 > Overall transpose time : 0 > Overall transpose fraction : NaNQ > > INVERSE FFT TEST RESULTS > Checksum difference is 0.000 (1033.228, 1033.228) > TEST PASSED > warn: ignoring syscall sigprocmask(18446744073709547831, 1, ...) > Exiting @ tick 2181887000 because target called exit() > > ----------------------------------------------------------------------------------------------------------------------------- > > I am able to successfully run the splash benchmarks in SE mode using > splash2/run.py. Editing the run.py script to use InOrderCPU() did not do > any good and results were same as above (zeros). Has anyone tried running > the splash2 benchmarks using inorder CPU? > > Thanks, > Sangam > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > -- - Korey
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