Hi everyone,
Tristan asked in https://github.com/tgingold/ghdl/issues/162 for a good
ODE/DAE solver suitable for AMS simulations.

Totally unrelated to VHDL(-AMS) I have recently been looking into Modelica,
and in my case specifically OpenModelica.
For those who don't know Modelica is a modeling language for physical
models, so it is also all based on solving ODE/DAE.
AFAIK It is more popular in mechanical simulations for the car industry.
But there are also extensive libraries for electrical systems and many
other fields of interest.

I am absolutely no expert in ODE/DAE solvers, but it might be worth to take
a look at the OpenModelica implementation of the solvers. What I could find
out is they use the DASSL solver. Another open source Modelica compiler is
JModelica.

Kind Regards,
Stefan
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