Hi Chris, > > I did some additional checking and it seems that spx_chuzc_sel finds > an eligible variable with d[j] ~3 times the eps value but no progress > is made, ending up cycling between two variables. >
Interesting to note that exactly the same picture (cycling on two bases near the optimum on solving LP with MPSX/370) is described in the paper: W.Ogryczak, On practical stopping rules for the simplex method, Math.Prog.Study 31 (1987), pp.167-174. Andrew Makhorin _______________________________________________ Help-glpk mailing list Help-glpk@gnu.org https://lists.gnu.org/mailman/listinfo/help-glpk
