Maybe I explain my simulation, It isn't larger(8K transistor). I found that it only use about 80M memory in the simulation, and inter cpu is only 2.0G,so I think the type of the memory no effect the result largely.
Kwkam: I contral the simulation result output, so It only generate very small data.
I don't think sun workstation is more reliable than Intel. Of course we usually meet the pc crash, but do you think the pc work condition is very complex than sun's. We let pc run many type application. EDA software, games and so. I let a pc only use on purity system, only 1~2 applation software. It runs very well. I run a simulation over 2 months.