Hi Chris
On Fri, Aug 24, 2012 at 03:59:24AM -0700, _griv wrote:
> What i really want to do is understand the
> way the information of the netlist is
> stored into matrices
much of the resistor implementation is done in ELEMENT. as such, a
resistor has a node_t _nodes[]. a node_t holds the number of the netlist
node ("user number"), accessed by t_(), and the number of the matrix
column/row ("matrix number"), accessed by m_(), the node corresponds to.
user numbers are mapped to matrix numbers within map_nodes(), before the
simulation starts.
> and how the modeling of
> resistor networks is done, in order to be able to apply
> an algorithm which aims to the reduction of large resistor networks.
is there any reason why you chose gnucap? gnucap does a lot to do fast
numerical simulation of electrical networks, which is hardly needed for
network reduction. also, a resistor network can be easily represented by
a triangular incidence matrix over nonnegative numbers. using the gnucap
data structures looks like overkill...
but of course i might be missing something, i'm just curious.
regards
felix
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