sx's Introduction

Sx

Simulation engines based on Building Software for Simulation by James Nutaro.

Installation

No good installation mechanism right now - just load the modules.

There are a number of protocols that need to be implemented for each model, depending on its type (Sx.Model, Sx.Network, Sx.Atomic) then the top-level network can be passed to Sx.Simulator.start_link/1 and advanced through time with Sx.Simulator.compute_next_state/2.

The logic-machine example from the book is implemented in examples/logic.ex

A cellular automata example is implemented in examples/ca.ex.

$ iex -S mix
iex(1)> c("examples/logic.ex")

[LogicListener, Memory, N1, N2, Sim, Sx.Atomic.Memory, Sx.Atomic.Xor,
 Sx.Model.Memory, Sx.Model.N1, Sx.Model.N2, Sx.Model.Xor, Sx.Network.N1,
 Sx.Network.N2, Xor]
iex(2)> s = Sim.new()
#PID<0.23839.3>
iex(3)> Sim.run(s)

x₁ > 1
x₂ > 0
xx M0 C0        1 0     yy M1 C0-3      0 0 1
x₁ > 1
x₂ > 0
xx M1 C3        1 0     yy M2 C3-6      1 1 0
x₁ > 1
x₂ > 0
xx M2 C6        1 0     yy M3 C6-9      0 0 1
x₁ > 1
x₂ > 0
xx M3 C9        1 0     yy M4 C9-12     1 1 0
x₁ > 1
x₂ > 0
xx M4 C12       1 0     yy M5 C12-15    0 0 1
x₁ > 1
x₂ > 0
xx M5 C15       1 0     yy M6 C15-18    1 1 0
x₁ > 1
x₂ > 0
xx M6 C18       1 0     yy M7 C18-21    0 0 1
x₁ > 0
x₂ > 0
xx M7 C21       0 0     yy M8 C21-24    1 1 1
x₁ > 0
x₂ > 0
xx M8 C24       0 0     yy M9 C24-27    1 1 1
x₁ > 1
x₂ > 0
xx M9 C27       1 0     yy M10 C27-30   1 1 0
x₁ > 1
x₂ > 0
xx M10 C30      1 0     yy M11 C30-33   0 0 1
x₁ > 1
x₂ > 0
xx M11 C33      1 0     yy M12 C33-36   1 1 0
x₁ > 0
x₂ > 0
xx M12 C36      0 0     yy M13 C36-39   0 0 0
x₁ > 0
x₂ > 0
xx M13 C39      0 0     yy M14 C39-42   0 0 0
x₁ > q
:quit
iex(4)>

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