> For my setup, the instability appears with pre-release 4.59.2, if this > is any help. >
Thanks. The error appears on solving problem.lp with glpsol, which performs scaling by default; however, it doesn't appear in main.cpp where scaling is not used. Specifying tiny constraint coefficients (which normally should be zeros) is a common error that makes the instance badly conditioned and leads to numerical difficulties. _______________________________________________ Help-glpk mailing list Help-glpk@gnu.org https://lists.gnu.org/mailman/listinfo/help-glpk
