-------- Forwarded Message -------- From: John Perry <[email protected]> To: Andrew Makhorin <[email protected]> Cc: glpk xypron <[email protected]>, [email protected] <[email protected]>, Nathann Cohen <[email protected]> Subject: Re: [Bug-glpk] [Fwd: preprocessing goes into infinite loop] Date: Sat, 14 Jan 2012 10:59:54 -0600
Andrew and Xypron Thank you for the quick replies. I have three questions. 1) If I set the upper bound to DBL_MAX, I encounter the problem. Am I supposed to set an upper bound of infinity differently? 2) If not, are you saying that GLPK cannot solve this kind of unbounded integer problem in general? 3) Since glp_simplex discovers that there is no solution without crashing, would it be advisable to solve by invoking glp_simplex first, then invoking glp_intopt only if continuous solutions exist? or is this horribly inefficient? regards john perry _______________________________________________ Bug-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-glpk
