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LogMIP User’s Manual
6
SEQ(J,JJ) JOB SEQUENCING J BEORE JJ
DUMMY FORCE NAMES INTO MODEL;
COMP(J).. T =G= X(J) + PT(J);
SEQ(J,JJ)$(ORD(J) <> ORD(JJ)).. X(J) + W(J,JJ) =L= X(JJ);
DUMMY.. SUM(GG(J,JJ), Y(J,JJ)) =G= 0;
X.UP(J) = BIG;
MODEL M / ALL /;
$ONECHO > "%lm.info%"
DISJUNCTION D(J,JJ);
D(J,JJ) WITH ORD(J) < ORD(JJ) IS
IF Y(J,JJ)
THEN SEQ(J,JJ);
ELSE SEQ(JJ,J);
ENDIF;
$OFFECHO
OPTION MIP=LMBIGM;
SOLVE M USING MIP MINIMIZING T;