Robust algorithm for random resistor networks using hierarchical domain structure
In this study we discuss methods for solving random resistor networks and similar problems. We discuss the node elimination method and we demonstrate its equivalence to the Gaussian elimination scheme, finding a good elimination order, which makes the method highly efficient. The transfer matrix method is shown to be a special case of the node elimination method with an ordering that is far from optimal. We compare the performance of these exact methods with a state of the art conjugate gradient solver. In general, the node elimination method is the faster method.
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