Hi Marcelo,
The following fragment
. . .
if (errnum == LPX_E_OK)
{
if (isMIP)
{
*status = lpx_mip_status (lp);
*fmin = lpx_mip_obj_val (lp);
}
else
. . .
which reports status and fmin, is bypassed, because in your case the mip
solver returns LPX_E_MIPGAP, not LPX_E_OK, to indicate that the search
has not been completed.
Best regards,
Andrew Makhorin
PS: I'd like to note that your code uses obsolete glpk api routines
(prefixed with lpx_). If you have a time and wish, I could help you to
reimplement the code using the standard glpk api. I'm not familiar with
Octave internals, however, I could rewrite the glpk function.
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