Running different applications on different cores in SE mode I In Currently FS mode is limited to the Alpha ISA.
On Jan 23, 2008 9:16 AM, Tony Frank <[EMAIL PROTECTED]> wrote: > > Does your "m5" support cycle-accurate simulation for 64 or 128 cores ? If you're using syscall emulation (SE) mode, you can use as many cores as you want. However, since M5 itself is currently single threaded, your simulations will run slower as you add more cores. Also, our only interconnect right now is a bus, so that will become a bottleneck if you don't replace it with something more scalable (or just crank it up to an unrealistic frequency to keep it from being a bottleneck). In full system (FS) mode, you're practically limited to 64 cores because of OS/BIOS limitations (and you have to apply some patches just to get to that level). > Does "m5 " support parallelized SPEC CPU2000 benchmark program so that > one program can generate different threads to run in different cores > in "m5" simulator ? > > Or, I can only run different benchmark program on different cores ? In SE mode, you can run different programs on different cores easily. Running multithreaded programs is possible but trickier, and has only been done for Alpha Tru64 SPLASH benchmarks; see http://m5sim.org/wiki/index.php/Splash_benchmarks. You could extend this technique to run other multithreaded binaries if you wanted though. In FS mode, you can run any set of applications that would run on a real Linux system. > > Does "m5" support PowerPC or Intel x86 ? We don't support PowerPC at all. We have x86 mode in development, but it's not released yet. FS mode supports Alpha and SPARC (though I think the SPARC support is somewhat limited). > > Would you please help me with it ? > > Or could you please recommmand other simulators for paralle multi-core > architecture ? M5 doesn't do everything out of the box, but I don't know of another simulator that does... each has its own set of limitations, generally. Steve _______________________________________________ m5-users mailing list m5-users@m5sim.org http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
