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Node Selection Options Tab
The XPRESS Solver Options dialog
Node Selection tab allows you to select the basic strategy for
choosing nodes (subproblems to be explored) by the Branch and
Cut method.
On this tab, you can specify that the next node should be
chosen (i) from the direct Descendants of the current
node, (ii) from All unexplored nodes, (iii) considering
the nodes Depth First in the tree first, or (iv)
choosing among all nodes for the First 10 Nodes (i.e.
subproblems), then choosing from the direct descendants. |
Click on the XPRESS Solver Options
dialog Node Selection tab to see it full size.
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Advanced Node Selection Options Tab
The XPRESS Solver Options dialog
Advanced Node Selection tab allows you select an advanced
strategy for choosing nodes (subproblems to be explored) by
the Branch and Cut method.
On this tab, you can specify that nodes are chosen with the Best
Estimated Objective, the Best Bound on Objective,
or using the Forrest-Hirst-Tomlin criterion. If
you select the Forrest-Hirst-Tomlin criterion, you can choose
one of six ways to use the pseudo costs associated with
integer variables to compute the Degradation Estimates
used in this method. |
Click on the XPRESS Solver Options
dialog Advanced NS tab to see it full size.
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Next: MIP Heuristics User
Options
Back to XPRESS Solver Engine Product
Overview
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