On Saturday 03 December 2005 12:04 pm, Dan McMahill wrote: > Has anyone looked at using hdf5 as a file format for storing > simulation data? I'm thinking that this might be a good way > to go for spice/gnucap/etc results. One thing on all of > these tools which I think is most useful is the ability to > run a simulation where you basiclly save all node voltages > and optionally all currents. Then you can pick out what to > plot later.
It looks interesting, but someone needs to be first, and I have other priorities. One problem with saving "all node voltages" is that usually I want something else. Even "optionally all currents" is not enough. People got accustomed to getting only that from Spice, but I found that a big choice of internal parameters is far more useful. With that, there are too many to save them all. Gnucap has about 70 parameters you can directly probe on a MOSFET, about 60 on a BJT. There are lots more that you can probe indirectly. Another factor is that a group of tools all need to support the format at the same time, otherwise it has no value. I will consider incorporating it in gnucap provided that someone else does the work and there are companion tools that support it.
