> On Apr 6, 2015, at 2:48 PM, Tristan Gingold <[email protected]> wrote:
>
> On 05/04/15 18:03, Adam Jensen wrote:
> ...
>> With the time-resolution fixed to femto seconds, the total simulation time
>> is limited to about 2.6 hours.
>>
>> 2^63 * 1e-15 sec ~= 153.723 min
>>
>> If events in a model occur on the scale of minutes, the simulations are very
>> limited.
>
> Yes, but is there a real case for that ? In microelectronics,
> propagation time is not in minutes!
True, but elapsed time between external inputs might be. Suppose you’re
modeling a data capture system, with a clock on the order of milliseconds, and
external events minutes or hours apart. The propagation delays in that case
are essentially zero, but the behavior has time units matching the clock
period, and for a slow clock situation, femtoseconds are not really useful.
paul
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