> I found the message below on the user mailing list, and I was wondering > if people familiar with this issue can elaborate on the questions I have: > > 1) what kind of run-times are people seeing when running up to 64 cpus? > what is the instruction committed/sec ratio? I don't know that many people (if anybody) is running that number of CPUs. In general, I think we say you can get about 2-3 mips with the simple model and 50-100 kips with the detailed model. That is of course divided by the number of cpus you have to figure out what your overall rate is. The simple cpu has some ability to not use simulation time if it is not doing anything, so idle cpus don't cost much.
> 2) Is alpha linux able to spawn threads and utilize all these virtual > cpus? spawn threads, yes. How effective they are is another question. If they are mostly user level, probably not too bad. If they use the kernel a lot, probably not so good since the linux mp support isn't all that great. Nathan _______________________________________________ m5sim-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/m5sim-users
