Hello Shri,
Most of the testing we did was on CHOLMOD, as the matrices in our problem
(from a variant of our HELM algorithm) were symmetric. We found that the
simplicial option was always much faster than the supernodal one, since the
"supernodes" were always too small. We never got around to
Greetings Dr. Marin,
In the variant of HELM, do you use backslash as well? The reason I ask this
question is, one of the advantages of the HELM is that the matrix does not
change for a given static problem (not considering bus-type switching and
tap changing etc.). As far as I know and I might be
Hello Ray,
I think I may have found a bug in *psse2mpc*, which concerns the
calculation of R,X for transformers when these are specified with *"Impedance
Code" CZ=3*. The PSS/E docs decribing the RAW format specify that, when
CZ=3, the values in the file are:
- R1-2 is the transformer load
