Just to make sure that everyone knows what Tom Beckley was talking about (Frank Eory obviously does, but I am not quite sure about Peter Clarke): Tom Beckley was talking about a new FastSpice simulator (like UltraSim, see also http://www.semiwiki.com/forum/f141/spice-fast-spice-analog-fast-spice-318.html ) and not about a faster SPICE simulator (like Spectre or APS).
simulate a 29-Gbyte memory in "a matter of hours."I think Spice shines in analog simulation rather than logic. What does it really mean by "speed" if we just use the spice to simulate the logic. BTW, is there any benchmark we can trust? Some said the best spice indeed is the free LTspice easily be downloaded from www.linear.com