Basic HTML version of Foils prepared February 25 2000

Foil 8 Circuit Simulations I

From Parallel Programming for Particle Dynamics Extra Foils Computational Science CPS615 -- Spring 2000 Semester. by Geoffrey C. Fox
An electrical or electronic network has the same structure as a particle problem where "particles" are components (transistor, resistance, inductance etc.) and "force" between components i and j is nonzero if and only if i and j are linked in the circuit
  • For simulations of electrical transmission networks (the electrical grid), one would naturally use classic time stepped simulations updating each component i from state at time t to state at time t+?t.
If one is simulating something like a chip, then time stepped approach is very wasteful as 99.99% of the components are doing nothing (i.e. remain in same state) at any given time step!
  • Here is where discrete event simulations (DES) are useful as one only computes where the action is

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