The following files can be used with the Neurosys solver to model a
network of 21 neurons.  There are two individual neuron models:  one
excitatory and one inhibitory.  The first twenty neurons are
excitatory, and the 21st is inhibitory.  Each neuron receives synaptic
input from the inhibitory neuron, and the inhibitory neuron receives
synaptic input from all neurons.  The equations modelling the neurons
are based on the models in G.B. Ermentrout and N. Kopell, Proc. Nat.
Acad. Sci. 95, 1259-1264 (1998).

In order to use this model, copy the files equations.c, equations.h,
and constant_list to the directory containing the source code for the
solver.  After compilation, the program can be run using the contants
file for the neuron model parameters and solver_infile for the
interconnection network and other input data.

The file outfile contains output from the solver when it is compiled
without the DIST_OUTPUT option, and the files outfile.0, outfile.1, and
outfile.2 contain output from the solver when it is run with the
DIST_OUTPUT option using three processes.
