question about wire load model
No. "1" means Fan-out and "0.002" means the corresponding wire length in the units mentioned in the cell library. Fan-out means no. of outputs driven by a gate. For eg. Suppose in the synthesized design, two outputs are being driven by an AND gate. It means the Fan-out of that gate is 2. Therefore for that gate, the algorithm will take the value for (2, 0.006) from the wire load model library, for estimating the wire length and hence delay at pre-routing stage. It uses the value "0.006" to calculate the R and C components distributed in the wire.