FICOTM Xpress
Optimization Suite

Xpress IVE
User Manual
Release 1.24

Last update 20 April 2016www.fico.com

Make every decision countTM

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Xpress IVE
Deliverable Version: A
Last Revised: 20 April 2016
Version 1.24

Contents
1 The Xpress-IVE Editor

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2 Xpress-IVE Menus
2.1 The File menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 The Project menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 The Edit menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 The View menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 The Build menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 The Debug menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 The Deploy menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8 The Modules menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.9 The Wizards menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.10 The Window menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.11 The Optimizer menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.12 The Help menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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3 Xpress-IVE Toolbars
3.1 The Toolbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 Navigation Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 Execution Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 Tools Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 The Model Explorer Bar showing the entity tree . . . . . . . . . . . . . . . . . . . . . .
3.3 The Project Explorer Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.1 Operations on Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 Pop-up menu for the Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.3 Pop-up menu for files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 Pop-up menu for folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.5 Drag-and-Drop within the Project tree . . . . . . . . . . . . . . . . . . . . . . . .
3.3.6 Editing file and folder names . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.7 Run options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.8 The PROJECTDIR parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Info Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Tools Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.1 Output/Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.2 Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.3 Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.4 Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.5 Objective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.6 MIP search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.7 BB tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.8 SLP progress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.9 User graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.10 CP stats and CP search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7 The Output/Input tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7.1 User input in the Output/Input tab of the Run Bar . . . . . . . . . . . . . . . . .

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Contents

3.7.2 The Optimizer Output tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . .
3.7.3 Debugger output in the Output/Input tab of the Run Bar . . . . . . . . . . . .
3.8 The Stats tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9 The Matrix tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9.1 The Sketch View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9.2 The Column View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9.3 The Row View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9.4 The Graphical View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9.5 The Scaling View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.10 The Objective tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.11 The MIP search tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.12 The BB tree tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.12.1 Parallel branch and bound trees . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.13 The SLP search tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.14 The User graph tab of the Run Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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4 Xpress-IVE Dialogs
4.1 Optimizer Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Load directives file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Load solution file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.4 Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.5 Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.6 Solution options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.7 Strategies (control parameter settings) . . . . . . . . . . . . . . . . . . . . . . .
4.2 View text Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Run options Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Draw progress graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Branch and bound tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.3 Pause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.4 Matrix Visualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.5 Stochastic models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.6 Constraint programming models . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.7 Use Model parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.8 Default PROJECTDIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.9 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Debug options Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.1 Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2 When debugger stops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Breakpoint condition Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Export to matrix Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 Deploy Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8 Self-Executing Model Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9 List Modules Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10 New Module Wizard Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11 Source code Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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5 Xpress-IVE Wizards
5.1 1. Name & Type Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 2. Parameters Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 3. Data Input Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 4. Variables Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 5. Objective Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6 6. Constraints Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7 7. Results & tuning Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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5.7.1 Optimizer control parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7.2 Setting directives on global entities . . . . . . . . . . . . . . . . . . . . . . . . .
5.8 8. Text Output Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.9 9. Graphing Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10 10. Programming Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10.1 Common Mosel programming tasks . . . . . . . . . . . . . . . . . . . . . . . . .
5.10.2 Setting Optimizer callbacks for advanced interaction with the Optimizer . . .
5.11 11. Debugging Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.12 12. Complete models Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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6 Xpress-IVE Dashboards
6.1 Xpress-Kalis Scheduling Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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7 XAD resource editor
7.1 Create XAD Forms using a Drag and Drop Interface . . . . . . . . . . . . . . . . . . . .
7.1.1 The XAD Resource Editor Form Edit Dialog . . . . . . . . . . . . . . . . . . . . .
7.1.2 XAD Resource Editor Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.2.1 Groups Within XAD Mosel Code . . . . . . . . . . . . . . . . . . . . . .
7.1.3 XAD Resource Editor Event Dialog . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.4 The XAD Resource Editor Drag and Drop Toolbar . . . . . . . . . . . . . . . . .
7.1.5 The XAD Resource Editor Properties Dialog . . . . . . . . . . . . . . . . . . . . .
7.1.6 XAD Resource Editor Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.7 The Mosel Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.8 The Associated Resource File . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.9 Creating a Simple Tab Example from Scratch . . . . . . . . . . . . . . . . . . . .

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Appendix

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A Contacting FICO
Product support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product education . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About FICO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Index

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C HAPTER 1

The Xpress-IVE Editor
The intelligent editor built into Xpress-IVE offers all the features of a modern programmer’s text
editor, plus enhancements designed to simplify working with Mosel models or LP and MPS files.
The editor supports Mosel language syntax highlighting

Two types of highlighting denote:
1. Mosel language keywords;
2. Identifier names defined in Mosel extension modules (dso’s)Mouse over information on most identifiers in a model:

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The Xpress-IVE Editor

Auto-complete feature: Press CTRL+Space to obtain a list of Mosel keywords and otheridentifier names that can be inserted at the current location:

When pressing CTRL+Space as a function, procedure or array name is typed in, the signature(list of parameters or index sets) will appear in a tooltip, highlighting each parameter as itgets typed:

Editor settings are available by right-clicking in the editor window and selecting Properties...

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C HAPTER 2

Xpress-IVE Menus
2.1

The File menu

New...
New Resource...
Open...
Close
Save

Create a new file.
Create a new resource file.
Open an existing file in the editor.
Close the file currently shown in the editor.
Save the file currently shown in the editor.

Save As...

Save the file currently shown in the editor under a different name.

Save As HTML...

Save the current file in HTML format, preserving formatting andcolors. Example The HTML code can be copied to Microsoft Word orother rich text format editor, for inclusion in documentation,
papers, etc.

Print...

Print the current file.

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Xpress-IVE Menus

2.2

2.3

Print Setup...

Change printer settings.

Send by Email...

Send the current file by email if a registered MAPI handler exists.

Recently used files

Open one of the ten most recently used files.

Exit

Quit Xpress-IVE.

The Project menu

New...

Create a new Project.

Open...

Open an existing Project.

Close

Close the currently open Project.

Save

Save the currently open Project and any modified files contained
within it.

Save As...

Save the currently open Project, under a different name, and any
modified files contained within it. (Note that if you save the project
file to a different directory, you will receive a warning that any files
with relative paths will not be updated relative to the project’s new
location.) For more information on use of Projects in Xpress-IVE, see
the Help entry on the Project Explorer Bar.

The Edit menu

Undo

Revert the editor to the state before the last editing action.

Redo

Cancel the previous Undo operation.

Cut

Cut the selected text and place it in the clipboard.

Copy

Place a copy of the selected text in the clipboard.

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Xpress-IVE Menus

Paste

Insert the contents of the clipboard at the current location.

Find...

Open the search dialog.

Replace...

Open the replace dialog.

Go To Line...

Go to any line number in the editor.

Erase bookmarks
Select All

2.4

Remove any bookmarks placed by a recent search.
Select the entire text buffer in the editor.

The View menu

Navigation Toolbar

Show/hide the toolbar showing navigation buttons.

Execution Toolbar

Show/hide the toolbar showing execution buttons.

Tools Toolbar

Show/hide the toolbar showing debug tools buttons.

Model Explorer Bar

Show/hide the Model Explorer Bar.

Project Explorer Bar

Show/hide the Project Explorer Bar.

Info Bar

Show/hide the Info Bar.

Run Bar

Show/hide the Run Bar.

Line Numbers

Show/hide line numbering in the editor.

Left Margin

Show/hide a margin on the left side of the editor. Bookmarks willappear here.

Repair Window Layout

In case the bars in IVE are positioned wrongly or lost, select to reset
the layout to the shipping default

Stochastic dashboard

Show/hide the Stochastic modeling dashboard when available.

Scheduling dashboard

Show/hide the Scheduling dashboard when available.

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Xpress-IVE Menus

2.5

2.6

The Build menu

CompileSaves and compiles the current .mos (Mosel) file. If there arecompilation errors, they will appear in the Info Bar. If compilation is
successful, the entity tree will be populated with entities from themodel.

Run

Saves, compiles and executes the current .mos (Mosel) model.
During the execution, the output from Mosel will go to the Output
pane from the Run Bar. After the run terminates the entity tree willshow actual values taken by variables in the Mosel model.

Pause

Uncheck this option to resume the execution after it has beenpaused.

Stop

Attempt to interrupt the execution of a model or an optimization
by requesting that Mosel and the Optimizer stop. Mosel/the
Optimizer will stop whenever it is safe to do so.

Options...

Shows the Run options dialog, allowing the user to change settings
for Mosel or Optimizer runs. It can also be invoked while a Mosel
model is executing or during the optimization of a matrix file.
Changes will take effect immediately after the dialog is dismissed.

Export matrix...

Shows the Export matrix dialog for exporting matrices produced
during Mosel runs to LP or MPS files.

The Debug menu

Re/Set Breakpoint

Sets or removes a breakpoint on the current line.

Set breakpoint condition Invokes the Breakpoint condition dialog.

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Xpress-IVE Menus

2.7

2.8

Start/Continue

Saves, compiles and begins/resumes debugging the current .mos(Mosel) model. While debugging, the execution will stop at
breakpoints or can be controlled manually by stepping into thecode. When the execution is interrupted, values for all identifiers(including those with a local scope) are available. Also, the Debug
watches in the Info bar are updated.

Step over

While debugging, advance the execution point by one line,
stepping over functions/procedure calls.

Step into

While debugging, advance the execution point by one line,
stepping into functions/procedures.

Run to cursor

While debugging, run to the line where the editing cursor ispositioned.

Debug Options...

Shows the Debug Options dialog for modifying the behavior of the
debugger.

ProfileSaves, compiles and begins running the current .mos (Mosel) model.
Every monitoring feature in IVE will be turned off to eliminate
overheads; statistics will be gathered regarding time spent on every
line of Mosel code. At the end of the run, the profiler output will
be produced.

The Deploy menu

Deploy...

Opens the Deploy dialog.

Self-Executing Model

Opens the Self-Executing Model dialog.

The Modules menu

Create a new module

Opens the New Module Wizard dialog.

List available modules

Opens the List Modules dialog.

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2.9

The Wizards menu

1. Name & Type Wizard

Invokes the Name & Type Wizard

2. Parameters Wizard

Invokes the Parameters Wizard

3. Data Input Wizard

Invokes the Data Input Wizard

4. Variables Wizard

Invokes the Variables Wizard

5. Objective Wizard

Invokes the Objective Wizard

6. Constraints Wizard

Invokes the Constraints Wizard

7. Results & tuning Wizard

Invokes the Results & tuning Wizard

8. Text Output Wizard

Invokes the Text Output Wizard

9. Graphing Wizard

Invokes the Graphing Wizard

10. Programming Wizard

Invokes the Programming Wizard

11. Debugging Wizard

Invokes the Debugging Wizard

12. Complete models Wizard Invokes the Complete models Wizard

2.10

13. More wizards...

Invokes the Wizard viewer without selecting any particular wizard

Deploy...

Opens the Deploy dialog.

Self-Executing Model

Opens the Self-Executing Model dialog.

Create a new module

Opens the New Module Wizard dialog.

The Window menu

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2.11

CascadeCascade the opened windows.

Tile

Tile the opened windows.

Arange Icons

Arrange icons when all windows are minimized.

The Optimizer menu

Optimize matrix file...

Shows the Optimizer dialog which allows for the optimization of
matrices in LP or MPS format.

Repair infeasible problem... Shows the Optimizer dialog with options for relaxing an
infeasible problem.
Find N best solutions...

2.12

Shows the Optimizer dialog which options for finding alternate
optimal solutions.

The Help menu

Xpress-IVE Help...

Opens this help system.

Xpress Help...

Opens the comprehensive Xpress Help system which includes
in-depth documentation on all Xpress products.

About Xpress-IVE...

Shows the About dialog, including version and copyrightinformation.

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C HAPTER 3

Xpress-IVE Toolbars
The Bars display rich information on the status of Xpress-IVE, the degree of success incompiling/running Mosel models, and results from runs. In addition, the Bars simplify userinteraction with the application by placing most controls within easy reach. The Bars can beresized or repositioned—settings are always saved on exit.

3.1

The Toolbars

3.1.1

Navigation Toolbar

Create a new file and open it in the editor. (also present in File menu)
Open an existing file in the editor. (also present in File menu)
Save the file currently shown in the editor. (also present in File menu)
Cut the selected text and place it in the clipboard. (also present in Edit menu)
Place a copy of the selected text in the clipboard. (also present in Edit menu)
Insert the contents of the clipboard at the current location. (also present in Edit menu)
Go to the previous position in the editor (also present in View menu)
Go to the next position in the editor (also present in View menu)
Go to the previous indentation level (also present in View menu)
Go to the next indentation level (also present in View menu)
Undo last text editor action (also present in View menu)
Redo last text editor action (also present in View menu)
Remove any bookmarks placed by a recent search. (also present in Edit menu)
Search within the text editor. (also present in Edit menu)
Repair Window Layout (also present in View menu)
Show the Xpress-IVE help system.

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3.1.2

Execution Toolbar

Show the Wizards Dialog:Show the 1. Name & Type wizard. (also present in Wizards menu)Show the 2. Parameters wizard. (also present in Wizards menu)Show the 3. Data Input wizard. (also present in Wizards menu)Show the 4. Variables wizard. (also present in Wizards menu)Show the 5. Objective wizard. (also present in Wizards menu)Show the 6. Constraints wizard. (also present in Wizards menu)Show the 7. Results & tuning wizard. (also present in Wizards menu)Show the 8. Text Output wizard. (also present in Wizards menu)Show the 9. Graphing wizard. (also present in Wizards menu)Show the 10. Programming wizard. (also present in Wizards menu)Show the 11. Debugging wizard. (also present in Wizards menu)Show the 12. Complete models wizard. (also present in Wizards menu)

Show the Deploy dialog. (also present in Deploy menu)
Show the Self-Executing Model dialog. (also present in Deploy menu)
Save and compile the current model. (also present in Build menu)
Show the Run options dialog. (also present in Build menu)
Save, compile and run current model. (also present in Build menu)
Uncheck to resume the execution after it has been paused. (also present in Build menu)
Interrupt the execution. (also present in Build menu)
Show the Export matrix dialog. (also present in Build menu)
Show the Optimizer dialog. (also present in Optimizer menu)
Show the Optimizer dialog with options to repair infeasible problems. (also present in
Optimizer menu)
Show the Optimizer dialog with options to find alternate optimum solutions. (also present in
Optimizer menu)
Show the List Modules dialog. (also present in Modules menu)
Show the New Module Wizard dialog. (also present in Modules menu)

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3.1.3

Tools Toolbar

Re/Set breakpoint. (also present in Debug menu)
Set/Remove breakpoint condition by invoking the Breakpoint condition dialog. (also present
in Debug menu)
Start/Continue debugging. (also present in Debug menu)
Step over. (also present in Debug menu)
Step into. (also present in Debug menu)
Run to cursor. (also present in Debug menu)
Invokes the Debug Options dialog. (also present in Debug menu)
Start profiling the Mosel model. (also present in Debug menu)

3.2

The Model Explorer Bar showing the entity tree
Can be shown/hidden by selecting Model Explorer Bar from the View menu or by clicking theicon on the Project pane.
The Model Explorer Bar contains the entity tree, the A->Z entity list and the most recently
accessed entities combo list:

After the successful compilation of a Mosel model, the entity tree will be populated withidentifiers from the model. After a successful execution of the model, the values of the identifiers

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appear in tooltips when the mouse is nearby. The complete values can be examined by double
clicking on an identifier (which will open the View text dialog). If a model is being solved for
multiple solutions, then the controls under recently-accessed entities list can be used to select agiven solution (the best solution is chosen by default).
The identifiers are grouped in the following categories:
Parameters
Parameters can have the same type as Mosel primitives, but they are special entities as they canbe used to pass information to a model without having to edit it.
Constants
Constants also have regular primitive types, but their values cannot change at runtime.
Primitives
These are primitive types (integer, real, boolean, string) either standalone or grouped into sets orarrays.
User types (defined within Mosel modules) will also appear here. Refer to the Mosel Native
Interface documentation for details on how to define and use such external types.
Note that if user types do not support conversion to/from text, the values shown here will bemeaningless.
Subroutines
A list of all the functions and procedures defined in the current model.
Problems
The main Mosel problem, and any other variables containing problem objects (which can beselected in model by use of the Mosel with statement). In the example images above, the model
contains an variable called SubProblems, an array of 3 mpproblem objects.
Those entities which are displayed specific to a given problem are:Decision variables
Representing the special mpvar Mosel type, decision variables are characterized by solution value
and reduced cost after a successful optimization.
Linear constraints
Representing the special linctr Mosel type, linear constraints are characterized by activity value,slack and dual value after a successful optimization.
Note that decision variables and linear constraints will only display correct values if the
optimization was successful and a solution was found.

3.3

The Project Explorer Bar
Can be shown/hidden by selecting Project Explorer Bar from the View menu or by clicking theicon on the Project pane. Creation, loading, and saving of Project files is handled by the Projectmenu.

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Projects in IVE are a collection of files (which can be any type, not just Mosel or XAD resource
files), along with the options specified in the Run Options dialog. One can classify the files in a
Project into a hierarchy of folders (not be confused with file system directories). Thus you mightwish to arrange files in a Project according to purpose, for example:

sub-models in one folder, and the main models that use them in another (or at the top
level);

a folder for each file type (as is the default behaviour for projects in Microsoft Visual Studio);

folder layout to mirror the hierarchy of files on disk.

Files in a project will be stored as either absolute or relative paths. If a file in a project is in same
directory as the project itself, or one of its subdirectories, its path will be stored relative to theproject file’s directory. A file from outside this directory hierarchy will be stored as an absolute
path. In the example image above, the files parent.mos and child.mos are stored in the same
directory as the project, whereas the file els.mos is in an unrelated directory and so is stored as an
stylised colon-backslash symbol overlaid on
absolute path. Files with absolute paths have thetheir icons in the project tree.

3.3.1

Operations on Projects
There are a number of actions one can perform with a Project. Many of these are started bybringing up a context-menu, typically by right-clicking the mouse on an item in the project tree.

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3.3.2

3.3.3

3.3.4

Pop-up menu for the Project

Add Files...

This brings up a file dialog box allowing the user to add files to the
top level of the Project

AddFolderThis creates a new empty Folder (as a direct child of the Project),which can then be renamed and populated.

Save

Same as the Save action on the Project menu. (When you save a
Project, all modified files within it are also saved).

Save As...

Same as the Save As action on the Project menu. (When you save a
Project, all modified files within it are also saved).

Pop-up menu for files

RenameThis makes the file name editable. See Editing file and folder names
below. This can also be acheived by selecting the item in the Projecttree and pressing F2.

Remove from ProjectThis removes the file from the project, but does not delete it fromdisk. This can also be acheived by selecting the item in the Projecttree and pressing the Delete key.

Pop-up menu for folders

Add Files...

This brings up a file dialog box allowing the user to add files to thisfolder.

AddFolderThis creates a new empty folder (as a direct child of this folder),which can then be renamed and populated.

Rename Folder

This makes the folder name editable. See Editing file and folder
names below. This can also be acheived by selecting the item in the
Project tree and pressing F2.

Remove Folder from Project This removes the folder (and any contents) from the project, butdoes not delete any files from disk. This can also be acheived by
selecting the item in the Project tree and pressing the Delete key.

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3.3.5

Drag-and-Drop within the Project tree
In order to rearrange the structure of the Project hierarchy, files and folders can be moved byDrag-and-Drop with the mouse. For instance, when a new folder has been created, other files orfolders can be dragged into it.

3.3.6

Editing file and folder names
When a file or folder is made editable, a text box is brought up over its location with the current
contents selected. Having adjusted the name, press the Enter key to confirm the change, or theEscape key to cancel. If you are renaming a file that is open in the IVE editor, the file will also be
renamed in the editor. Note: you cannot use this method to move files to different directories,
merely to rename files with a directory; this is why only the file name is editable, not the whole
path.

3.3.7

Run options
When a Project is saved, the contents of the Run options dialog are saved with it. These options
are then restored when the Project is reloaded. This facilitates keeping files together with theirrelevant settings.

3.3.8

The PROJECTDIR parameter
If a Project is laoded when a model is run, then a Mosel parameter named PROJECTDIR is set tothe full path of directory in which the poject file is located. This value can be accessed in theusual way via a Mosel parameters...end-parameters block. This value can be seen in the Run
options dialog. (If the users sets a Mosel parameter PROJECTDIR via the Run options dialog, thiswill override the Project-supplied version).

3.4

Info BarCan be shown/hidden by selecting Info Bar from the View menu or by clicking the icon on the
Information pane.
The Info Bar consists of three views:
1. Build — Shows the status of the compilation of a Mosel model and reports errors if any. Clickon an error to make the editor navigate to the offending line in the model. When running amodel, some brief statistics and version information appear here. Press the button Copy to
clipboard to copy the contents of the Build view to the Windows clipboard. Then paste into any
text editor/email client.

2. "..." locations — When an entity is clicked on in the entity tree, all the lines where the entity ispresent are added to this clickable list. Click on a line in the list to highlight it in the editor.

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3. Debug watch — Editable list of identifiers whose value is shown.

In addition, the Info Bar shows a sketch of the latest matrix loaded in the Optimizer. Note thatthe matrix may be "presolved".

3.5

Tools BarCan be shown/hidden by selecting Tools Bar from the View menu or by clicking the
button on the Toolbar.

The Tools Bar is made up of five regions:On the left, a list of buttons corresponds to the files opened in the editor. Switch from one
file to another simply by clicking the button having the chosen file name.

The(Ctrl+Alt+Left) and(Ctrl+Alt+Right) buttons navigate through current andprevious locations in the editor.

The(Ctrl+Alt+Up) and(Ctrl+Alt+Down) buttons find a previous or next line in theeditor with the same indentation level as the current line.



The Find button (marked by binoculars) opens the search dialog.
– The search box can be typed in or pasted to from the clipboard. Press Enter torepeatedly search in the current file for occurrences of the word or expression in the
search box.
– The small progress bar below the search box shows the position of the editing cursor in
the current file.



3.6

The context Help button – if pressed, it will attempt to find Help on the current word in theeditor.

Run BarCan be shown/hidden by selecting Run Bar from the View menu or by clicking the
Run pane.

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icon on the17Xpress-IVE Toolbars

The Run Bar groups together the following tabs/panes: Output/Input, Stats, Matrix, Solutions,Objective, MIP search, BB tree, SLP progress, User graph, CP stats, and CP search.
The Run Bar can be put into space-saving mode by enabling the Auto hide checkbox: when themouse leaves the area of the Run Bar and enters the editor, the Run Bar will be hidden almost
completely. When the mouse re-enters the Run Bar, it expands to its previous dimensions.
Below are snapshots of the different tabs/panes:

3.6.1

Output/Input
Mosel output

Console-style user input:

Profiler output:

Debugger output:

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Optimizer output when a matrix file is run using the Optimizer Dialog:

3.6.2

Statistics
Optimizer status and statistics:

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3.6.3

MatrixA zoomable view of the matrix:

3.6.4

Solutions
The last N solutions found by the Optimizer:

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3.6.5

Objective
Objective value progress during Simplex or Newton barrier:

3.6.6

MIP search
Progress of the global search for integer solutions:

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3.6.7

BB tree
The evolution of the Branch and Bound MIP search:

3.6.8

SLP progress
SLP progress:

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3.6.9

User graph
Graph constructed by user during the Mosel run:

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3.6.10CP stats and CP search
Models using the Xpress-Kalis solver generate display in two additional tabs:

3.7

The Output/Input tab of the Run Bar

All write and writeln statements in Mosel produce character output that can be viewed in thiswindow. Output from the Xpress Optimizer can also be shown by setting the boolean "mmxprs"
parameter XPRS_VERBOSE.
Notes:
To scroll the Output window using the keyboard, click once on the window to obtain the

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keyboard focus.

3.7.1



Text can be selected and copied directly from the Output window.

To clear the contents of the Output window, click on the Clear button.

User input in the Output/Input tab of the Run Bar

When the user is required to input text during a Mosel run (when the read or readln statements
are executed), the text can typed in the edit box marked Type here. (This edit box is disabled
except when expecting user input).
Notes:
To send the typed text to Mosel, press Enter.



After text has been input, the left margin of the corresponding line from the Output
window will be highlighted in blue.

Call the Mosel procedure fflush to display all remaining text before asking for input.

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3.7.2

The Optimizer Output tab of the Run Bar

During a standalone Optimizer run (using the Optimizer dialog) or in the solving stage during a
Mosel run (if the "mmxprs" parameter XPRS_VERBOSE was set to true), a textual Optimizer
progress report will be produced in the Output window.
A typical output sequence from the Optimizer contains:
1. A short version and copyright message from the Optimizer, marked with a blue margin(does not appear during a Mosel run).
2. Information on any control parameter settings, written in magenta (does not appear duringa Mosel run).
3. The problem reading phase and statistics, marked with a dark green margin.
4. The LP relaxation phase (Simplex or Barrier), marked with a light blue margin.
5. The global search phase (if applicable), marked with an orange margin.
6. The nonzero values in the solution vector, if a solution exists (does not appear during a
Mosel run). These values are printed on alternating background colors to improvereadability. There is no relationship between the background color and the value shown.
7. To learn how to control the amount and frequency of textual output from the Optimizer,
please refer to the Xpress-Optimizer reference manual or the 7. Results & tuning wizard.

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3.7.3

Debugger output in the Output/Input tab of the Run Bar

While debugging Mosel code, the user has the option of printing the current executed line. Theline can also be expanded to show current values of primitive identifiers (integers, strings,
booleans, reals) and current sizes of arrays and sets (see the Debug Options dialog for more
information).
Clicking on a line number will activate the corresponding line in the editor.

3.8

The Stats tab of the Run Bar

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window pane displays the state of the Xpress Optimizer.
Text is highlighted (black) when the status or activity is current or currently taking place. Text isdimmed (gray) when the status information depicted is no longer current (e.g., when the
optimizer is processing a presolved matrix, the before-presolve matrix is not currently relevant) or
if the activity described is either finished and still relevant (the LP relaxation statistics are usefulduring the global search phase) or not started yet.
The Time overheads section shows the approximate time spent by Xpress-IVE on tasks other than
optimization. Note that the time overhead created by other programs (processes) running on thesame machine is not accounted for, even though they can slow down the optimization
significantly.

3.9

3.9.1

The Matrix tab of the Run Bar

Sketch view : A summarized view of the rows and columns that make up the matrixColumn view : A list of all columns in the matrix

Row view : A list of all rows in the matrix

Graphical view : An interactive graphical representation of the matrix contents

Scaling view : A histogram showing matrix coefficient ranges

The Sketch View

This view attempts to summarize arrays of constraints and arrays of variables into logical units togive a more concise representation of the matrix in the Optimizer.
In the example above, the following information can be gleaned about the matrix from thesketch view:
1. There are 6 rows of type = which are named Closed.
2. There are 8 rows of type = which are named MxMake.
3. There are 8 rows of type = which are named MxRStock.
4. There are 8 rows of type = which are named MxSell.
5. There are 16 rows of type = which are named PBal.

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6. There are 16 rows of type = which are named RBal.
7. In ALL the 6 = rows named Closed, variables named openm appear 12 times.
8. In ALL the 8 = rows named MxMake, variables named make appear 16 times.
9. In ALL the 8 = rows named MxMake, variables named openm appear 8 times.
10. In ALL the 16 = rows named PBal, variables named make appear 16 times.
11. In ALL the 16 = rows named PBal, variables named pstock appear 32 times.
12. In ALL the 16 = rows named PBal, variables named sell appear 16 times.
13. The objective function references variables named buy 16 times, variables named make 16
times, variables named openm 8 times, ...
14. and so on...
Notes:


Only constraints and variables sent to the Optimizer will be represented.



In most cases, by examining the names of variables and constraints in the matrix, IVE candetermine their ’roots’ and implicitly the logical arrays they belong to. Sometimes, however,
the intentions of the user may not be guessed correctly. Please keep in mind these actions
performed by IVE on each variable and constraint name to determine its root:
1. All blanks at the beginning of the name are removed.
2. All blanks at the end of the name are removed.
3. The name is then searched from left to right for any of these letters: "{[(0123456789".
When any such letter is found, that letter and all subsequent letters are thrown away.
4. If the previous three steps produce non-empty name, it is the designated as the root of
the original name.
5. If the previous three steps yield an empty name, start again with the original name anddo the following:
6. Remove all digits ("0123456789") from the name.
7. The remaining letters in the name are designated as the root.

Some examples:
The root of x[1,2] is x
The root of production_level("Detroit","April",5) is production_level

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3.9.2

The Column View

This view lists all variables (columns) in the matrix currently loaded in the Optimizer.
Note:

Not all variables declared in the model may have been sent to the Optimizer!



Values are updated as they become available (e.g., if a new integer solution was found, thevalues are immediately updated).

The headings are:
1. An icon showing the type of the variable
2. Column: The column number in the matrix for the current variable
3. Name: The name of the variable, as understood by Mosel
4. Rows: The number of rows(constraints) in which the variable participates
5. LB: The lower bound for the variable
6. UB: The upper bound for the variable
7. Solution: The current solution value of the variable. Check problem status to see if solution
is valid!
8. Reduced cost: Current reduced cost. See above for validity.
9. Type: Description of the type of the variable (continuous, binary, integer, semi-continuous,semi-continuous integer, partial integer)

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3.9.3

The Row View

This view lists all constraints (rows) in the matrix currently loaded in the Optimizer.
Note:

Not all constraints declared in the model may have been sent to the Optimizer: only
constraints linked to the Objective function are sent to the Optimizer.



Values are updated as they become available (e.g., activity values are updated when finding
solutions).

The headings are:
1. An icon showing the type of the constraint
2. Row: The row number in the matrix for the current constraint
3. Name: The name of the constraint, as understood by Mosel
4. Cols: The number of variables(columns) with nonzero coefficients in this constraint(row)
5. RHS: The right hand side of this constraint
6. Activity: Its current activity value
7. Slack: Its current slack value
8. Dual: Its current dual value
9. Type: Description of the type of the constraint (=, =,=, range, free)

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3.9.4

The Graphical View

Use the slider on the left to change the relative size of the two windows.



If the matrix is small (less than a hundred rows and/or columns), each colored rectangle in
the upper part of the window will represent one nonzero coefficient in the matrix.



If the matrix is large or very large (above one thousand and up to hundreds of thousands ofrows and/or columns), a colored rectangle will represent a region in the matrix,
corresponding to a certain number of rows and columns. All the nonzero coefficients in thematrix (regardless of its size) are examined; only those regions that have at least one
nonzero coefficient will be represented by a colored rectangle.

The matrix can be zoomed into by clicking and holding the left mouse button and dragging
right and down. After zooming, only the region marked by the zooming rectangle will beshown. The coefficients are recounted and the accuracy of the display will increase. Afterzooming deep in the matrix, a point can be reached where the colored rectangles represent
actual coefficients in the matrix. When the current view is the result of a zoom one canmove around the matrix by dragging with the right mouse button.

To zoom out, double-click the left mouse button.



The rectangle shown permanently next to the cursor acts as a magnifying glass. It marks aregion consisting of 12 rows and 10 columns next to the cursor and brings that region intoview in the lower part of the window. As the mouse cursor moves around in the matrix, themagnified region is constanly updated.



The meaning of colors:– Red — A negative coefficient or a region where all coefficients are negative.
– Blue — A positive coefficient or a region where all coefficients are positive.
– Purple — A region where some coefficients are positive and some coefficients arenegative. The shade of purple indicates the predominance of either.

In the magnified 12 × 10 region, the names of the rows (constraints) and columns (variables)
are shown (to enable the actual names used in the Mosel model, set the "mmxprs" boolean
parameter XPRS_LOADNAMES to true).
At the top, following a comma after each column number is the type of variable:

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C — indicates a continuous variable;
I — indicates an integer variables;
B — indicates a binary variable;
S — indicates a semi-continuous variable;
R — indicates a semi-continuous integer variable;
P — indicates a partial integer variable.
On the right hand side, the type of constraint is shown. Note that <and >are used instead of
the actual ≤ or ≥ , to improve readability. In the case of a non-binding constraint, thecharacter ’*’ is shown.

3.9.5

The Scaling View

A histogram showing ranges for matrix coefficients, right hand sides, objective coefficients, andbounds.

3.10

The Objective tab of the Run Bar
The graph on top shows the evolution in time of the objective value during the Simplex
algorithm. The iteration is also plotted by time.

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The graph at the bottom shows the evolution in time of the duality gap during the Newton
barrier algorithm.



At any time, only one of these progress graphs can be active (corresponding to thealgorithm currently running).

The graphs can be zoomed in and out and each curve can be shown or hidden using thecheckboxes in the graph legend.



Use the slider bar to change the vertical size of either graph.



Xpress-IVE maintains a history of the last ten graphs produced. Select the desired graphfrom the list at the top. Note that the graph history cannot be accessed during an
optimization.

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3.11

The MIP search tab of the Run Bar

The graph on top shows the evolution in time of the MIP gap during the global search. Also
shown are the points where the integer solutions were found and the depth in the search tree atwhich each solution was found.
The graph below shows the progress of the current best integer solution objective relative to thebest bound. Integer solutions are marked as well.
The graphs can be zoomed in and out and each curve can be shown or hidden using thecheckboxes in the graph legend.



Use the slider bar to change the vertical size of either graph.



Pressing the button "Accept current best solution and continue" will terminate the MIP
search but the execution of the Mosel model will continue. This behavior is unlike that of
the Stop button, which stops the entire model.



Xpress-IVE maintains a history of the last ten graphs produced. Select the desired graphfrom the list at the top. Note that the graph history cannot be accessed during an
optimization.

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3.12

The BB tree tab of the Run Bar

The Branch and Bound tree is a representation of the search for an integer solution when
optimizing MIP problems. To enable/disable drawing the BB tree use the Run Options dialog.
Notes:
The tree is displayed for Mosel as well as Optimizer runs and it is updated continuously
during the MIP search (to enable the names used in the Mosel model to appear in the tree,
set the "mmxprs" boolean parameter XPRS_LOADNAMES to true).

White nodes are either still active or in-tree.

Red nodes are infeasible.

Yellow nodes are cut off.

The 20 most recent nodes are in decaying shades of blue, with bright blue being the mostrecent.



The green nodes represent solutions. The best solution so far is green and large. The
brighter the color, the more recent the solution.

When hovering the mouse above a green solution node, a number will appear next to all
solution nodes, indicating the order in which the solutions were found.



If fewer than 5000 nodes have been visited so far, the entire tree will be drawn (see above).



If more than 5000 nodes have been visited, only nodes up to a depth of 10 will be drawn
fully. The rest of the tree is summarized by scattered dots (which will turn into real nodes
when zooming). Solutions and the 20 most recent nodes (in blue) are displayed regardlessof their depth:

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Xpress-IVE Toolbars



Zoom in by holding the left mouse button down, dragging right and down and releasing it.
A rectangle will indicate the area to be zoomed.

Return to full tree view by clicking the left mouse button when zoomed.

When zoomed, the lower left corner shows a scheme of the entire tree, while the"porthole" (representing the area seen in the main tree window) is highlighted:

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Xpress-IVE Toolbars



To move around in the tree when zoomed, hold the right mouse button down and drag inany direction. The small preview window in the corner will continuously reflect the newposition in the tree.

The arrow keys will also move around in the tree (ensure the tree window has the focus byright-clicking in it - do not left click – that will return to full tree view).



If lost in the tree or if the image doesn’t look correct, left click to return to full view.



Hovering the mouse above nodes will produce tooltips with information on the current
node.



The tooltips at each non-terminal node contain the following information:– Node number– Depth– Initial branching direction– The branching variable and its current relaxed solution value– Relaxed objective– Current best bound– Current best solution– Number of descendants– How many descendants are cutoff, infeasible, solutions– The ten most recent ancestors of the node, each with info on branching direction

Double click on a node to obtain a listing of all of its ancestors (shown in the View text
dialog).

When the optimization is complete, paused or stopped, search for specific branchingvariables in the tree using the tree highlighter tool (can be enabled/disabled from the Run
Options dialog): just select a variable name from the drop list and all visible nodes
branching on that variable will begin to flash in alternating blue and yellow.

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Xpress-IVE Toolbars

3.12.1To stop highlighting, select the first item in the highlighter tool droplist: the blank.

While there is no limit on the size of the displayed tree, if the tree is very large (e.g. over
200,000 nodes on a PIII 800Mhz machine), it will react slowly to user actions.

Parallel branch and bound trees
Note that each branch is colored according to the thread that processed the node. Shown below
are trees obtained with 2, 4, and 8 threads.
2 threads

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4 threads

39

Xpress-IVE Toolbars

8 threads

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Xpress-IVE Toolbars

3.13

The SLP search tab of the Run Bar

The graph at the top shows the evolution in time of the number of unconverged variables during
the SLP run. A sample is taken at each SLP iteration.
The graph at the bottom shows the progress of the current best objective. A sample is taken ateach SLP iteration.


The graphs can be zoomed in and out and each curve can be shown or hidden using thecheckboxes in the graph legend.

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Xpress-IVE Toolbars

3.14

The User graph tab of the Run Bar

This window offers the opportunity to plot points on an unlimited two-dimensional grid whenusing the "mmive" Mosel library. The graph is automatically scaled to include all and only theplotted points. There is no limit on the number of items that can be plotted.
The "mmive" module in Mosel contains these functions and procedures:procedure IVEpause( message: string) Pauses the Mosel execution at the line where it
was called. It also prints a message at the top of the Run Bar that may inform theuser of the reason for pausing. While the execution is paused, model entities canbe examined in the entity tree, or the user graph may be inspected in slow motion.
function IVE_RGB( red: integer, green: integer, blue: integer): integer
Compute a composite color by combining amounts of red, green and blue.
function IVEaddplot(name:string, color:integer): integer Inserts a new plot on
the user graph. A plot is indentified by its name and can be shown or hidden using
its corresponding legend checkbox. The maximum number of distinct plots iscurrently limited to 20. However, each plot can contain an unlimited number ofpoints, lines, arrows and labels. In the graph above, both "first fractal" and"second fractal" are plots. They can be shown/hidden using the checkboxes in thelegend.
procedure IVEdrawarrow(handle:integer, x1:real, y1:real, x2:real, y2:real)
Add an arrow to an existing plot. The arrow connects the two points whose
coordinates are given as parameters, pointing to the second one.
procedure IVEdrawlabel(handle:integer, x:real, y:real, text:string) Add atext box to an existing plot. The box will be centered horizontally just above thepoint given.
procedure IVEdrawline(handle:integer, x1:real, y1:real, x2:real, y2:real)
Add a line to an existing plot. The line connects the two points whose coordinates
are given as parameters.
procedure IVEdrawpoint(handle:integer, x:real, y:real)mark a point at the given coordinates.

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Xpress-IVE Toolbars

procedure IVEerase

Remove all plots and reset the user graph.

procedure IVEzoom(x1:real, y1:real, x2:real, y2:real) Scales the user graph. The
viewable area is determined by its lower left and upper right corners.

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C HAPTER 4

Xpress-IVE Dialogs
4.1

Optimizer Dialog
Accessible by selecting Optimize matrix file... from the Optimizer menu or by clicking the//

buttons on the Toolbar.

The Optimizer dialog allows the optimization of a matrix file (MPS or LP format). After thevarious settings have been set, the Start button will proceed with the optimization. Up to fivedifferent strategies may be ’checked’. IVE will run the strategies successively and display the
progress log in the Output window. To compare the relative performance of different control
parameter settings visually, look at the histories of the MIP search graphs.
Options:

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Xpress-IVE Dialogs

4.1.1

Load directives file
Perform the branch and bound search according to an Optimizer ’directives’ file. Please check the
Optimizer reference manual for more information on directives and how to set them.

4.1.2

Load solution fileLoads an .slx solution file prior to solving an MIP problem. Please check the Optimizer reference
manual for more information on .slx solution files.

4.1.3

4.1.4

Algorithm
PrimalSimplex primal.

Dual

Simplex dual.

Barrier

Newton barrier interior point.

Network

Network.

Sense
Note that this setting will override the sense specified in the LP file. Make sure the correct sense
is selected.

4.1.5

4.1.6

Minimize

Minimize the objective function

Maximize

Maximize the objective function

Optimization
RelaxedFind a relaxed solution

Perform global search

Find integer solutions

NONE – only load matrix

Loads the matrix for visualization/inspection. No optimization is
performed.

Solution options
Find best solution

For MIP problems: runs the Optimizer to find the optimal solution.

Find N best solutions

For MIP problems: runs the Optimizer in a special mode to findalternate optimal solutions. (Note that the BB tree visualization will
no longer be accurate)

Analyze if infeasible

If problem is infeasible, run the IIS Optimizer command to examine
infeasibility sets.

REPAIR/Relax if infeasible

Attemps to find a feasible solution to an infeasible problem byrelaxing constraints and bounds. For more information look up thecommand REPAIRINFEAS in the Optimizer Reference Manual.

Write solution summary to screen Write nonzero variable values from the solution vector to the
Output window in the Run Bar.
Write solution to formatted ASCII file Write the solution to a .prt file and open it for viewing.

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Xpress-IVE Dialogs

4.1.7

Strategies (control parameter settings)
Set these control parameters before the matrix is read in.
For example:
VARSELECTION=3 MIPRELSTOP=0.05

4.2

View text Dialog

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Xpress-IVE Dialogs

The View text dialog can be used to display in simple editable format:


The value of an entity in the Entity tree, by double clicking the entity. This is where the fulllisting of an array or set can be examined.



The value of an entity in the editor window, by bringing up the context menu and selecting
Show value of.... This only applies to non-scalar entities, such as arrays and sets.



The complete list of ancestors for a node in the branch and bound tree pane in the Run Bar,after double clicking the node.

The contents of either the text view or the table view can be saved (as plain text or as CSV
respectively) or copied to the clipboard via the context menu on each control. The text menu
further offers facility for full cut-and-paste, and text search.
There is one control to affect display of data: The Hide zero-value decision variables checkbox
will, when checked, remove those elements from a collection of mpvar for which the Mosel
getsol function returns zero.

4.3

Run options Dialog
Accessible by selecting Options... from the Build menu or by clicking the
Toolbar.

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Xpress-IVE Dialogs

Settings that control the execution of a Mosel model or the optimization of a matrix file can be
modified using this dialog. This dialog can be invoked at any time, even while a run is taking
place. Changes will take effect immediately after the dialog is dismissed.
Options:

4.3.1

4.3.2

4.3.3

Draw progress graphs
Simplex

Graph the progress of the Simplex algorithm. The sampling is madeevery second.

Newton barrier

Graph the progress of the Newton barrier algorithm.

Global search

Graph the progress of the global search for integer solutions. The
sampling is made every second.

Branch and bound tree
Draw tree

Draw the Branch and Bound tree.

Enable node highlighting

Allow searching for nodes in the tree by variable name.

Pause
At every Simplex log entry

Pause at every log entry during the Simplex algorithm. Log entries
are produced periodically during the course of the Simplex
algorithm; their frequency is controlled by the "mmxprs" parameter
XPRS_LPLOG.

At every Newton barrier log entry Pause at every iteration during the Newton barrier
algorithm.
At every Global search log entry Pause at every log entry during the global search for integer
solutions. The frequency with which log entries are generated
during the global search is controlled by the "mmxprs" parameter
XPRS_MIPLOG.

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Xpress-IVE Dialogs

4.3.4

4.3.5

Matrix Visualization
Show original matrix

After a problem is loaded in the Optimizer, its matrix can be
examined. Select this option to make a copy of the matrix andvisualize it.

Show presolved matrix

After a problem is ’presolved’ by the Optimizer, the matrix will most
likely have changed. Select this option to examine the presolved
matrix.

Stochastic models(if available)
Pause to prune scenario tree manually When developing a stochastic model, use this option topause the Mosel run just before solving the stochastic problem.
When the model is paused, scenarios can be aggregated or deleted
in the scenario tree.

4.3.6

Constraint programming models(if available)
Draw CP search tree

Draw the CP search tree.

Store all domains for up to nnnn nodes Maintains detailed variable domain information for the
first nnnn nodes.

4.3.7

Use Model parameters
If the Mosel model has declared one or more parameters, they can be overriden. Select thisoption and then specify the parameter values to be used during the execution. Any number ofparameters may be omitted: only those specified will modify the default parameter values.

4.3.8

Default PROJECTDIR
If a Project is loaded, this will be set by default to the directory in which the Project is located.

4.3.9

Parameters
A sequence of assignments, in name=value, name2=value... format, specifying names andvalues to be passed to the parameters ... end-parameters block of a Mosel model when it
runs.

4.4

Debug options Dialog
Accessible by selecting Debug Options... from the Debug menu or by clicking thethe Toolbar.

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Xpress-IVE Dialogs

This dialog contains settings that control the behavior of the debugger.
Options:

4.4.1

4.4.2

Breakpoints"Soft" breakpoints

When reaching a soft breakpoint, perform any of the actions below
and then continue. This helps in gathering a log of the model
execution without user intervention.

"Hard" breakpoints

When reaching a hard breakpoint, watches are updated and theexecution stops. The execution must be resumed manually.

When debugger stops
The following options are available:
No Output
Output line number
Output line number + line content
Output line number + line content + expand identifiers
Output watches
See some typical debugger output for more information.

4.5

Breakpoint condition Dialog
Accessible by selecting Set/Remove Breakpoint condition... from the Debug menu or by clicking
thebutton on the Toolbar.

This dialog allows setting a conditional breakpoint.

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Xpress-IVE Dialogs

The conditional breakpoint will activate only when the condition is met.

4.6

Export to matrix Dialog
Accessible by selecting Export Matrix... from the Build menu or by clicking the
Toolbar.

button on the

After the Mosel run completes successfully, a standard matrix file (MPS or LP) can be exported
using this dialog.
The objective function in the matrix file is determined by the linear constraint entity specified.
Consequently, the objective must have been declared as a linear constraint variable in the Mosel
model.
The column and row names can be scrambled to hide the original entity names from the model.

4.7

Deploy Dialog
Accessible by selecting Deploy... from the Deploy menu or by clicking the
Toolbar.

button on theIf you wish to build a model as an executable file, see the Self Executing Model Dialog.

This dialog is the first step in deploying a mosel model or a matrix file in a user application
written in C/C++, Java or VB. After selecting how the current file will be deployed, click on "Next>" to preview and save the generated code.
Choices:

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Xpress-IVE Dialogs

Save .BIM file (with debug information) The .BIM file will contain all original strings plus debug
information.
Save .BIM file (all names stripped) Secure the .BIM file by removing human-readable identifier
names.
Run Mosel model from C Only available when a .mos file is open in the editor. Produces a
simple C program.
Run Mosel model from Java Only available when a .mos file is open in the editor. Produces a
simple Java program.
Run Mosel model from VBA Only available when a .mos file is open in the editor. Produces a
simple VBA program.
Run Mosel model from VB.NET Only available when a .mos file is open in the editor. Produces a
simple VB.NET program.
Run Mosel model from C# Only available when a .mos file is open in the editor. Produces a
simple C# program.
Optimize matrix file from C Only available when a matrix file is open in the editor. Produces a
simple C program.
Optimize matrix file from Java Only available when a matrix file is open in the editor. Produces
a simple Java program.
Optimize matrix file from VB.NET Only available when a matrix file is open in the editor.
Produces a simple VB.NET program.
Optimize matrix file from C# Only available when a matrix file is open in the editor. Produces a
simple C# program.

4.8

Self-Executing Model Dialog
Accessible by selecting Self-Executing Model... from the Deploy menu or by clicking the
button on the Toolbar.

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Xpress-IVE Dialogs

This dialog can be used to create executables with self-contained compiled Mosel models within
them.
The dialog contains the following options:

4.9



Executable Name: The name of the executable to create. The file used to create theself-running model will be the Mosel file currently in focus in the editor. Executables are
created using a concatenation of this name and the platform.



Save Location: The folder location to attempt to save any created executables to.

Create For: Any platforms for which IVE finds suitable executable stubs for will beselectable. New executable stubs will be added over time and should be available from theXpress website. Currently there are only Windows stubs available. Any stub executables(named SelfRunMosel_platform.exe) should be placed in the"%XPRESSDIR%\bin\Tools_SRAssist" folder.



Message Output: Any error messages or notifications concerning the executable creation
are displayed here.

Finished: Exit the dialog.

Create: Click this to have IVE attempt to build and create the executable for the selected
platforms.

List Modules Dialog
Accessible by selecting List available modules... from the Modules menu or by clicking the
button on the Toolbar.

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Xpress-IVE Dialogs

Lists the contents (constants, subroutines, operators, types and control parameters) of Mosel
dynamic modules that are currently available to Mosel. Please refer to the Mosel documentation
for more information on what modules are.

4.10



Select a module name from the list on the left and then browse through its contents using
the tabs on the right.

A green check next to a module name indicate that it was successfully loaded by Mosel.

A green check with a Dash Optimization logo indicates a module which is part of the Xpress
package.



Two red question marks next to a module name indicate that even though a .dso file exists,
it could not be loaded by Mosel.

New Module Wizard Dialog
Accessible by selecting Create a new module... from the Modules menu or by clicking the
button on the Toolbar.

Edit the contents of a virtual .dso module (constants, subroutines, types and control parameters),
then generate the template source code for producing the module.

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Xpress-IVE DialogsName the module and specify version numbers.



Add some constants:



Add some subroutines:

Add some types:

Add some control parameters:

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Xpress-IVE Dialogs

4.11



At any time, clicking on View code... will show the Source code dialog with the code
generated for the current contents of the module.

When satisfied with the contents of the module, save the code that is produced and fill in
the functionality.

Source code Dialog
Shown after completing the steps required by the Deploy or the New Module Wizard dialogs.

This dialog is the last step in any Xpress-IVE operation that produces C, Java, VB, VB.NET or C#
source code. Depending on what type of source code was produced, compilation instructions are
given. Save the contents of the editor using the Save As... button.

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C HAPTER 5

Xpress-IVE Wizards
Wizards can be used to learn more about Mosel, simplify repetitive tasks when developing
models and/or provide insight into the more advanced features of the Mosel modeling language
and the Optimizer.
The general structure of each wizard window is:

1. Wizard selector: at any moment, select the desired wizard from here. Skip any number ofsteps, focus on only one wizard, etc.
2. Actual wizard: this part is specific to each of the current 12 wizards.
3. Mosel source: source code produced while interacting with the wizard. This code can beedited, inserted in the Mosel editor or copy/pasted.
Wizards are designed to be self explanatory and highly interactive. Use the mouse to selectoptions and watch how the Mosel source code is updated for the current task. Interacting withthe wizards is the only way to assess the practicality of using a wizard for a task. Selecting optionsin the wizards is entirely harmless and reversible. No changes are made to your main Mosel
model without explicit approval (e.g., pressing the Insert at cursor button, which adds the
wizard-generated code to the Mosel model opened in the editor).
Select a wizard below for more information:


1. Name & Type Wizard

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Xpress-IVE Wizards



2. Parameters Wizard



3. Data Input Wizard



4. Variables Wizard

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Xpress-IVE Wizards



5. Objective Wizard



6. Constraints Wizard



7. Results & tuning Wizard

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Xpress-IVE Wizards



8. Text Output Wizard



9. Graphing Wizard



10. Programming Wizard

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Xpress-IVE Wizards



11. Debugging Wizard



12. Complete models Wizard

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Xpress-IVE Wizards

5.1

1. Name & Type Wizard

The Name & Type wizard assists with creating the skeleton of a model. The skeleton source code
is updated to reflect options selected in the wizard window.

5.2

2. Parameters Wizard

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Xpress-IVE Wizards

The Parameters wizard shows a small typical example of using parameters in Mosel. The wizard
also shows how to interact with Mosel parameters from a programming language or the Mosel
console application.

5.3

3. Data Input Wizard

Mosel models can be separated into logic and data. The Data Input wizard attempts to obtain all
the "data" declarations in a model and then gives an example of how such data may be "readin". Standard Mosel data files as well as reading from random files is supported/described.
Note that "data" can be of the types integer, boolean, real, string (not mpvar or linctr).

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Xpress-IVE Wizards

5.4

4. Variables Wizard

The Variables wizard can be used to declare and set the type of decision variables. Type the nameof a variable and select index sets (if an array). Optionally, specify the type of the decisionvariable(s). Watch as the source code is constantly updated based on your selections.

5.5

5. Objective Wizard

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Xpress-IVE Wizards

The Objective wizard allows the selection of a linctr object as the objective function and explores
the various options available when optimizing a model.

5.6

6. Constraints Wizard

The Constraints wizard can be used to declare linear constraints. Type the name of a constraint
and select index sets (if an array). Optionally, specify the type of the decision variable(s). Watch as
the source code is constantly updated based on your selections.

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Xpress-IVE Wizards

5.7

7. Results & tuning Wizard

The Results & tuning wizard has two parts:

5.7.1

Optimizer control parameters
This interactive section groups all the Optimizer control parameters into families. Select a family
and then a control for a full description.

5.7.2

Setting directives on global entities
Global entities (integers, binaries, etc.) can be given higher branching priority. Other attributes
related to branching can be set for variables.

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Xpress-IVE Wizards

5.8

8. Text Output Wizard

The Text Output wizard lists all entities in the current Mosel model and produces code fordisplaying the values of the entities. Special formatting is optional. This wizard also shows how
to write to a file.

5.9

9. Graphing Wizard

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Xpress-IVE Wizards

The mmive Mosel library can be used for drawing graphs in the User graph section of Xpress-IVE.
This wizard explains all the functions/options available for graphing.

5.10

10. Programming Wizard

The Programming wizard has two parts:

5.10.1

Common Mosel programming tasks
Select a radio button for sample source code that exemplifies that feature.

5.10.2

Setting Optimizer callbacks for advanced interaction with the Optimizer
Check the Xpress documentation for more information on using Optimizer callbacks.

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Xpress-IVE Wizards

5.11

11. Debugging Wizard

The Debugging wizard lists a set of useful debugging features and how to use them. The features
are all accesible from Mosel and are grouped by the target of the debugging task:


Mosel



Mosel-Optimizer linkOptimizer

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Xpress-IVE Wizards

5.12

12. Complete models Wizard

32 complete Mosel models are made available in this version. The models range from simple ones
(difficulty:1) to fairly complex (difficulty:5). Select a model type by clicking in the list to obtain
more information on the problem it adresses and the Mosel features it employs to solve theproblem.

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C HAPTER 6

Xpress-IVE Dashboards
Dashboards are special dialogs in Xpress-IVE that monitor the progress and performance ofvarious extensions of the Xpress suite.

6.1

Xpress-Kalis Scheduling Dashboard

he Xpress-Kalis Scheduling Dashboard is displayed after model execution for models that use theXpress-Kalis solver (Mosel module "kalis") and contain objects of types cptask and cpresource.
The upper part of the dashboard displays a resource usage chart. The lower half contains a Gantt
chart of the scheduled tasks. Arrows between tasks indicate precedence constraints.

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C HAPTER 7

XAD resource editor
7.1

Create XAD Forms using a Drag and Drop Interface
The XAD Resource Editor can be used to quickly create a form layout for use in XAD Mosel
applications. The layout, as defined by the user in the editor, is saved to file in a simple XML
format and may then be read in using XAD’s XADloadresource function. A full example for doing
this from the XAD Editor all the way to a XAD Mosel model can be found on the example page.

This section contains the following topics:

The Drag and Drop Toolbar



The Form Edit Dialog



The Properties Dialog



XAD Groups



The Event Dialog

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XAD resource editor



7.1.1

Tutorial Example

The XAD Resource Editor Form Edit Dialog

The Form Edit Dialog (FED) is used to construct a XAD window object containing XAD control
objects through a drag and drop style interface. A form created in this manner may be loaded
into a XAD Mosel model and the controls and objects on the form created from the resource file,rather than creating the objects programmatically with Mosel code.
The form itself may be resized through the usual Windows methods of selecting an edge orvertex and left-click dragging, or through an entry in the geometry input controls of the XAD
Properties Dialog.
In a similarly Windows fashion the form may be moved around the central XAD editor pane byclick-dragging on the form’s title bar. Should you wish to move the top of the form beyond the
top of the editor pane then you may do so via the form positioning control at the base of the
XAD Properties Dialog. The latter method may also be useful if you are editing on a small screen,or with a particularly large form.
Note: To reposition the starting position of the form on the screen when first displayed via XAD
Mosel you will need to alter the Position input control of the XAD Properties Dialog. Moving theform within the editor is simply for editing and has no runtime effect.
Once an object is placed on the FED and the properties altered you may wish to add events forthe object to a Mosel model file, or create groupings that may be manipulated as one object
within your Mosel code.
Adding Events: Event callbacks may be added to a current, or new, Mosel file by double
left-clicking on the object you wish to add the event for. This will open up the Events Dialog
where you may add, or navigate to, event callbacks within the Mosel code of the specified
model. See the Event Dialog page for further details.
Note: In order to add an event callback to a file the file must be a valid Mosel model file.
Specifically, it must contain the "end-model" line.



Select Groups: To select a group of objects you may hold down Control whilst clicking on
the individual controls. You can drag select a box around the desired objects (beginning theselection box anywhere on the form background). Or, if you have already created groups ofobjects you can select them via the Current Groups control in the XAD Properties Dialog.



Delete Objects: In order to delete the currently selected object you must simply press theDelete or Backspace keys.



Repositioning the Form: You may reposition the form within the editor pane by clicking anddragging as you would a standard Windows window; alternatively, you may use the FED
Positioning Control in the XAD Properties Dialog.

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XAD resource editor

7.1.2

XAD Resource Editor Groups

Grouping together objects within the XAD Resource Editor allows multiple objects to be moved,
hidden or disabled simultaneously, both in the resource editor itself and, perhaps more
powerfully, from within XAD Mosel code.
There are two distinct types of object groups:
Temporary Groups:

used simply to move around several objects at a time and keepthem at the same relative distances from each other. Temporarygroups may be promoted to permanent groups by pressing thePromote Selection to Group button on the XAD Properties Dialog.

Permanent Resource Groups (PRG): permanent group associations of objects. These can be
manipulated within XAD Mosel code, hidden or disabled as agroup, and allow individual objects to belong to multiple groups(see the 500selectiongroups.mos example discussed in the tutorial).
This type of group is stored in the resource file itself and may beloaded in to XAD Mosel code to be associated with a particulargroup id (see: example).
Groups of objects may be moved by selecting any member object and click-dragging it in thesame manner in which you would reposition an individual object on the Form Editor Dialog (FED).
Any selected group of objects will have a bounding box (visible in the image at the top of thepage) to display the extremities of the group. Within the FED this denotes the limits ofmovement of the group. Any attempt to click and drag the group’s bounding box beyond theedges of the FED will result in no further movement beyond the FED edge.
Any PRG may be selected, updated or deleted using the Groups control section of the XAD
Properties Dialog.
7.1.2.1

Groups Within XAD Mosel CodeWithin XAD Mosel you may manipulate and use groups using the following routines:
XADgroupgetid

Used to retrieve the integer id of a group loaded via a resource file.
It takes the arguments (groupName:string,
XADWindowID:integer).

XADgroupgetw

Used to retrieve the integer pixel width of a group of objects. It
takes the argument (groupID:integer).

XADgroupgeth

Used to retrieve the integer pixel height of a group of objects. It
takes the argument (groupID:integer).

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XADgroupgetx

Used to retrieve the integer x-position of a group of objects. It
takes the argument (groupID:integer).

XADgroupgety

Used to retrieve the integer y-position of a group of objects. It
takes the argument (groupID:integer).

XADgroupsetpos

Used to move the group in unison. The new position sent to thegroup defines the top left of the group bounding rectangle(remembering that screen-based coordinates have the top left as
the origin). It takes the arguments (groupID:integer,
xpos:integer, ypos:integer).

XADgroupenable

Used to enable or disable all members of a group. It takes thearguments (groupID:integer, enable:boolean).

XADgroupsetvisible

Used to show or hide all members of a group. It takes thearguments (groupID:integer, show:boolean).

Additionally, you may also create or destroy groups purely in Mosel code using the following
procedures:
XADgroupcreate

By creating a set of integers (the XAD ids of those objects you wish
to group) you can group them together using this routine. It
returns the newly created group id. It takes the argument(objectIDs:set of integer).

XADgroupaddmember

Add an object to an already existent group. It takes the arguments(groupID:integer, objectID:integer).

XADgroupremovemember

Remove an object from a group. It takes the arguments(groupID:integer, objectID:integer).

XADgroupdisband

Remove all objects from a group. It takes the argument(groupID:integer).

Further details of these and other XAD routines may be found in the XAD Reference guide,xadref.pdf.

7.1.3

XAD Resource Editor Event Dialog

This dialog allows the user to quickly add in events for specific objects on the Form Edit Dialog(FED). It is opened by double left-clicking (or right-clicking, if you so desire) on the current object.
Options in the dialog:

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Object Type and Object Name: These are read-only and simply indicate the type of the object
just selected and the name given to that object (see the XAD
Properties Dialog to alter this).
Event:The type of event to add. The selection list will change dependingon the type of object currently selected. For instance a BUTTON
object will not respond to WINDOW_OPEN events and so it will notappear in the list. A full list of events and object types can be foundin the XAD Reference Manual, xadref.pdf, within the Xpress
installation "docs" directory.

Mosel File to Add Event to:Here you can select any open Mosel code file, choose to open
another Mosel file, or choose to create a new Mosel file. The
tutorial example creates a new Mosel file, but most commonly you
will wish to add events to a current file.

Cancel:Close the dialog without adding an event.

Go To Procedure:This will open the selected Mosel file and, provided it is a valid file,
add in the relevant callback and a small piece of code. This code will
simply display a message to the effect of "Not yet implemented"
and is simply meant as a placeholder until you add your ownfunctioning code to the callback. Note: If the callback already exists
in the file then you will be taken to that section of the code and no
new code will be created.

Note: If you alter the name of the objects, window or the callback name itself once it has beencreated then the XAD code will not call that callback during code execution. The callback
mechanism works on the assumption that the auto-generated callback will have the namestructure "ObjectName_WindowName_EVENT". Should you wish for any reason to alter thename of an object during code execution then you may do so using the XAD procedure
XADsetname(objectID:integer, newName:string), but great care should be taken when
doing so.

7.1.4

The XAD Resource Editor Drag and Drop Toolbar

This toolbar contains the various controls which may be dragged and dropped on to the Form
Edit Dialog (FED) as well as any general options specific to the editor.
The following controls may be selected for easier positioning and resizing of objects within the
FED:
Snap to Grid:

When repositioning objects with the mouse the object’s (0,0) point,
or top-left, will position on the FED grid lines. The grid lines arespaced 10 pixels apart in both the vertical and horizontal axes.

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Resize to Grid:

When resizing objects with the mouse the object’s edges, in the
direction of resize, will adhere to the FED grid lines. The grid lines
are spaced 10 pixels apart in both the vertical and horizontal axes.

To add a control, simply left click on the desired object icon in the left toolbar and, keeping theleft button depressed, move the object over the FED. Once the mouse cursor moves over a valid"drop" point the cursor will change from a circular "forbidden" symbol and you may release themouse button. This creates the representation of the object at the "drop" point and you may
then move or resize the control by left clicking and dragging within the centre or the edges of thecontrol, respectively. This behaviour is much the same as standard Windows window behaviour.
The following controls may be dragged and dropped from the toolbar:

Button:The standard Windows button control.

Radio:The standard Windows radio button control. Note that grouping ofmultiple radio button objects does not cause them to act in amutually exclusive manner. This must be done programmaticallyfrom within XAD Mosel.

Checkbox:

The standard Windows checkbox control.

Input:The standard Windows text input control.

Canvas:A canvas object used for drawing on from within XAD Mosel.

Browser:

An internet browser window. Set the initial page for the browser
using the URL field in the properties dialog.

Group Marker:

The standard Windows group identifier box. Note that this has
nothing to do with XAD Editor groups.

Progress:

The standard Windows progress display.

Scrollbar (Horizontal):

The standard Windows horizontal scrollbar control.

Scrollbar (Vertical):The standard Windows vertical scrollbar control.

Tabs:

The standard Windows tabbing control. Multiple tabs may be
added by separating the tab names with commas in the Caption
field of the XAD properties dialog. To create groups of controls
related to different tabs within the tab object, create multiple
groups and then assign a SELECTION event to the object. Within the
SELECTION event in the XAD Mosel code you are then able to hideand disable, or show and enable, the various groups relevant towhichever tab has been selected. Note: A maximum of three tabs
within a tab control will display in the editor. This limit does not
apply when running the actual XAD Mosel model.

Editor:

The standard Windows multiple-line text entry control.

Tree:

The standard Windows tree display control.

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7.1.5

Multilist:

The standard Windows multiple-column list control. The list may
also have its sorted flag set by setting the Sorted field of the XAD
properties dialog to true.

List:

The standard Windows list control. Multiple items may be added to
the list by entering a comma-separated list within the Caption fieldof the XAD properties dialog. The list may also have its sorted flag
set by setting the Sorted field of the XAD properties dialog to true.

Droplist:

The standard Windows droplist control. Multiple items may be
added to the list by entering a comma-separated list within the
Caption field of the XAD properties dialog. The list may also haveits sorted flag set by setting the Sorted field of the XAD properties
dialog to true.

Text:

The standard Windows read-only text display.

The XAD Resource Editor Properties Dialog

The Properties Dialog of the XAD Resource Editor is used to set the various window, object orgrouping properies of items on the Form Edit Dialog (FED). In some cases, such as altering size or
position, the attributes may be set using click-dragging within the FED.
The dialog itself is split up in to several sections, the behaviour of groups deserves a separate
page and so is covered in more detail here:Strings– Name: The internal name given to the object currently selected (used if retrieving theobject id from XAD Mosel). This can contain any alpha-numeric character and theunderscore character. It should be unique.
– Resource: A read-only field containing the name and full path of the resource currently
being edited.
– Caption: If the current object has a text component (the window title in the case of theform) then you may enter it here.
Position (parent-relative)

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XAD resource editor– X Position: The x position of the current object within the window; or, in the case of
the window itself, the starting x position on the screen when the window is first drawn.
– Y Position: The y position of the current object within the window; or, in the case of
the window itself, the starting y position on the screen when the window is first drawn.


Geometry (actual/usable)– Width: The pixel width of the current object and the relevant size of the usable area.
The read-only "usable" text is currently only relevant for the window objects as they
have a non-client border area.
– Height: The pixel height of the current object and the relevant size of the usable area.
The read-only "usable" text is currently only relevant for the window objects as they
have a non-client border area.
Special Attributes– Disabled: If you wish the object to be initially disabled (non-responsive to events and inmany cases greyed out) then set this control to true. The default is enabled, the control
set to false.
– Visible: If you wish the object to be initially hidden then set this to false. True by
default. When set to false the object will be drawn with a small red X within the editor.
To actually hide an object within the editor it must belong to a group and the groupitself needs to be hidden using the Hide Group in Editor switch.
– Sorted: If you wish list objects to be sorted when first displayed then set this to true.
False by default.
– URL: This string field is currently only relevant for the browser object and should
contain the starting address (or home page, to use the common nomenclature) for thebrowser object when it is first displayed. It will not display anything within the FED
object as this is not an actual browser window.
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XAD resource editor– Current Groups List: The list of groups currently associated with the resource. Selectingfrom the list makes that group the current selection.
– Name: The name given to the group, either a default name or a user-given name.
– Visible: If you wish the objects within the group to be initially hidden (for instance if
you are creating a tab object with multiple tabs) then set this to false. Ignore by
default, meaning that the individual object settings for visibility will be honoured.
When set to false the objects of the group will be drawn with a small red X within theeditor. To actually hide a group of objects within the editor the group needs to be
hidden using the Hide Group in Editor switch.
– Disabled: If you wish the objects of the group to be initially disabled (non-responsive toevents and in many cases greyed out) then set this control to true. Ignore by default,
meaning that the individual object settings for command response will be honoured.
Note that this control will override any previous setting for the individual objects.
– Hide Group in Editor: Hide the currently selected group in the editor window. This is
only for display in the editor as you are currently working on it and does not affectrun-time display of the objects.
– Save Changes: Save the changes to the current group (such as a change of name orvisibility status).
– Delete: Remove the current group from the groups list.


Other controls– Promote Selection To Group: Clicking this button whilst having a number of objects
selected (through shift-clicking, or via drag-selection) will promote that current
temporary selection to a saved group which you may then edit via the Groups controls.

– The FED positioning control: This displays the current position and size of the FED
within the editing pane area. Should you wish to reposition a particularly large FED
you may do so by click dragging the representation of the FED around the control
surface. It will not allow you to move the FED to a position completely outside of thepositioning control’s field of view.

7.1.6

XAD Resource Editor Example
In order to demonstrate the use of the XAD Resource Editor and the associated XAD Mosel
commands we will now look at the example "500selectiongroups.mos", in the XAD examples
folder of the Xpress installation. This example not only covers the use of resources, but the
manipulation of resource generated groups within Mosel code and the use of an object inmultiple groups.

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To begin with load the "500selectiongroups.mos" file in to IVE and view the behaviour of themodel when run.
In the example the tab object works by picking up the tab’s SELECTION event, calling the relevant
Mosel callback (Tabs_Window_SELECTION) and then setting the enabled and visible flags of theobjects relevant to the currently selected tab. In this case the code required to do this isreasonably simple as we have setup groups of objects which we may hide or show with one
command. Herein lies the power of object groups.
We will now look at the various sections of the example’s Mosel code, before looking at theassociated resource in the XAD Resource Editor. Finally, as a tutorial, we’ll create a new resource
containing a simple tab object and a few tab-associated controls.

7.1.7

The Mosel Code

The Mosel code has the following parts (ignoring those parts common to standard Mosel models):

Load the window from resource:

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Here we load the resource file in to the model. All resources equate to one XAD window
and the return value of the function used to load the resource, XADloadresource, is the idof the XAD window object (id_win, in this case).
Retrieve the object/group ids:
Although we need not retrieve the object ids for all of the resource objects, if we wish to
manipulate or respond to events for that object we must do so. When creating the resource
each object/group will have been given a name (either the default"XAD_OBJECTTYPE_COUNTER", or set by the user) and it is this that we will use to retrieve
the object ids.

Using the XAD functions XADgetid and XADgroupgetid we may retrieve the ids for objects andgroups, respectively.
Display the window:
This function opens the specified XAD window and displays all the associated objects. In
order to only display/enable those objects relevant for the initially displayed tab we willneed to setup the object states when the window opens. This is achieved via a
WINDOW_OPENED event callback.

procedure Window_WINDOW_OPENED:
In this callback we need to setup the various states of the objects/groups belonging to eachtab selection. There are six groups within the example, 3 relating directly to those objects
displayed on each tab, and 3 relating to the buttons on the right hand side of the example.
The right hand side buttons demonstrate that when the Button, Canvas or Text tabs are
selected the relevant buttons are enabled or disabled. These differ from the groups setup
for the objects in the tab control as each button may belong to more than one group(Group B, C or T depending on which tab selections they will be enabled for).
We intially have the "Button" tab selected and so within this callback we enable the
id_group_button and id_group_B groups and disable the others.
Note: there are no events associated with the buttons in this example and so they will not
actually perform any action if clicked.

procedure Tabs_Window_SELECTION:
This callback is in essence very similar to the WINDOW_OPENED callback, above. The
difference being that we must check for the currently selected tab and then disable/enable
and show/hide the relevant groups for each tab.
As the comment in the code mentions, it is important to get the order of the commands
correct if you are dealing with objects in multiple groups. Were the command orderincorrect you may inadvertently enable and then disable an object (belonging to multiple
groups) that you intended to be enabled.
Note: It is recommended to first disable all the groups you need to before finally enabling
the relevant group or groups (as in this example).



7.1.8

procedure Exit_Window_PRESSED:
When the "Exit" button is PRESSED this callback is called. All it does is cleanly close the
id_win window so that the program closes in a user controlled and clean manner.

The Associated Resource File
The resource file associated with the example, "Resource_500.rsc", can be found in the XAD
examples directory alongside the Mosel file. Once loaded in to IVE you will be presented with the
XAD Resource Editor and the representation of the XAD window and objects will be visible in theForm Edit Dialog (FED).

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When initially loaded all of the objects within the tab will be visible. To hide a group of objects
within he editor select the group from the XAD Properties Dialog Group drop-down list and thenselect the option to Hide Group in Editor.
This behaviour can be used to quickly shift between group selections designed for use in tab
objects. In this example we will hide the Buttons group and show the Canvas group:

Select the group you wish to hide:

Here we’ve selected the Buttons group. It’s currently visible in the editor.


Hide the Buttons group:

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By selecting the Hide Group in Editor option we hide the Buttons group.
Unhide the Canvas group:

By selecting the Canvas group in the drop-down list, and unselecting the Hide Group in
Editor option, the Canvas group becomes visible in the editor.
The events for the objects on the resource may be added, or navigated to, via the XAD Event
Dialog. This is shown when an object, or the form itself, is double left-clicked.

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As an example we will now navigate to the Exit button callback discussed earlier. To do so, firstly
double click the Exit button in the FED to open the Event Dialog for the button. Once this is open
we can navigate to the event callback in the following manner:

Select the Event:In this case we wish to select the PRESSED event, but were you adding a different event you
could select any of the events offered to you in the drop-down list.



Select the Mosel File:
We wish to navigate to the event callback already set in "500selectiongroups.mos", but you
could choose to add the event to any valid Mosel file in which you intend to load the"Resource_500.rsc".



Go to Procedure:Once you’ve selected the event and file you wish click the button and you will be taken to
the relevant callback in the file specified. In this case the callback already exists and so you
should now see the XADwindowclose function call which forms the operational code of thecallback.
If you’d chosen to add a currently non-existent event callback to the file then the code partof the callback would contain the default "Not yet implemented" Mosel text output.

7.1.9

Creating a Simple Tab Example from Scratch
In this section we will use the Resource Editor to create a simple tabbing application for XAD
from scratch, using the drag and drop features of the editor to layout the form and the Event
Dialog to add in a few simple events.
Firstly, create a new resource by selecting the New Resource option on the File menu. This will
create a blank form in the FED of the default size (500x500).
Now we’ll alter the form to the desired size and set its various attributes:
Resize:By clicking and dragging on any side or vertex of the form (or by entering the size in theProperties Dialog) resize the form to around 600x400. It’s recommended that if you want avery specific size you set this via the Properties Dialog, otherwise using the mouse to resize
can be quicker and easier.



Setup Strings:
Next you will need to enter a name for the form (XAD window) object. You may stick withthe default "XAD_WINDOW_NUMBER" if you wish, but you may find it easier to maintainyour Mosel program if you give it a more unique name. For this example you could enter"Main_Window".

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XAD resource editorEnter a caption for the window (the title which appears in the form’s top bar) via theProperties Dialog. For this example you could enter "Tutorial Window".


Set the Window Position on Screen:
For this example we’ll have the window open and display at half its own width and heightfrom the top left of the screen. If you’ve set a form width and height of 600x400 then set
the "X Position" to 300 and the "Y Position" to 200.

Next we’ll add a button object for closing down the program once it’s started. This will involve
adding the button itself via the drag and drop editor, creating the new Mosel model file andadding the PRESSED event to close the window in the Mosel code:Adding the Button Object:
Click and drag a button object from the drag and drop toolbar on the left-hand side of theeditor. Once your mouse cursor moves over a "droppable" area of the newly created form
you can release the mouse button; this will create a button at the position of the mouse
cursor. To refine the position of the button you may left-click and drag it within the form, oryou may enter the position in the Properties Dialog, as we did with the main form. In thisexample we’ll place the button towards the bottom right of the form.

Modify the Button Attributes:
As with the main form we should give the newly created button a more descriptive caption
and, if desired, a more unique name. In this example we will mark the button as the "Exit"
button and give it the name "Exit".



Add a PRESSED Event:To make the button function when pressed we need to add an event via the Event Dialog.
With the "Exit" button selected (its attributes will be visible in the XAD Properties Dialog),
double left-click on the button to open the Event Dialog. Select the PRESSED event, as wewant this callback function to be called when the button is pressed, and make sure "Create
a new file" is selected as the Mosel file to add the event to. Now click "Go to Procedure"and enter a location and name for your new Mosel file. For this example we’ll call the new
Mosel file "Tutorial.mos".
You should now see the newly created Mosel file with the Exit_Main_Window_PRESSED
procedure inserted. As we want the procedure to close the window replace the default
code with XADwindowclose(id_win) as in the original example above.
In this instance, as we’ve created a new Mosel file, the code to load the resource and assign
this particular resource to the id id_win isn’t yet present. Had we added this to an alreadyexistent Mosel file then we would of course close the window of whatever XAD id had been
associated with the resource.

To create a functioning application we now need to add in a little connecting code to load thisparticular resource file and open the associated window:Enable XAD Code Usage:
As we’ll be using the XAD Mosel module we’ll need to add the line "uses "mmxad"" to theMosel code.

Declare the Window ID:
Within the declarations section of the Mosel code you will need to declare the id of the XAD
window we will associate with the resource. In this case we’re calling the id id_win, as
above. All ids are simply integer values and therefore we must add the line "id_win:
integer".

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Load the Resource: To associate a resource with an id the resource (and thus its associatedobjects) are loaded using the XAD function "XADloadresource". This function returns theinteger id it has associated with the loaded resource and we assign this to id_win.
Note: if your Mosel code file and resource file are saved in different folders then you willneed to specify a path to the resource file in the argument to "XADloadresource".

Open the Window and Begin Execution:
In order to hand control of the application to the "Main_Window", id_win, we need theprogram to display the window and associated controls. To do so use the XAD function"XADwindowopen(id_win)".



Exit the Program:
To cleanly exit and end the main section of the code we now add the "exit(0)" command to
the Mosel code.

Cleanup the Code:
Whenever a new Mosel file is created in IVE there may be default sections that are
inappropriate to your program. In this case we do not require the reference to "mmxprs",the "parameters" section or the Mosel "writeln" code and so they can be removed.

The Mosel code and resource should now look like similar to the images below and you should be
able to run the application in IVE. Try running the program and notice that we can exit using the
button and event we’ve created.

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Add the Tab Object:
In the same manner in which you added the button, previously, add a tab object to theform. Again, in the same manner as the button, give it the name "The_Tab" and position it
towards the top left of the form. Now, in the same manner as you resized the form object at
the start of the tutorial, resize the tab object to fill the form to the right of the "Exit"
button.

Create Multiple Tabs:
Instead of having a single caption or title, the tab object has tab captions to the top of eachtab. These are added in the same manner as the caption added to the "Exit" button, butwith the tab captions delimited by the comma character.
In the XAD Properties Dialog enter "Eric,Ernie" in the Caption field. This creates two tabs on
the tab object. A maximum of three tabs will be visible on the FED, although you may enteras many comma-separated tab caption entries as you wish in the Caption field.
The resource editor should now appear similar to the following:

Add Objects for Each Tab:
On each tab we want different objects to appear. In this example we will create canvas andtext objects on the "Eric" tab and a web browser on the "Ernie" tab:



In the same manner as the other drag and dropped objects, add a browser object to theform and reposition/resize it to sit over the tab object. You will need to drop the browser ona section of the form itself.



Next set a name for the browser, "Browser" in this example, and set the URL field to the
web page you wish it to open on when clicked, www.fico.com in this example.

All objects associated with a tab should be grouped together. For the "Ernie" tab the groupconsists of the single browser object, "Browser".
Whilst holding down the Control key left click on the browser object. This creates a
selection group.
To make this a permanent group, for use in XAD Mosel code, you now need to promote thisto a group using the Promote Selection To Group button of the XAD Properties Dialog. This
creates a group called "Group_1".
Rename this newly created group to something more unique, such as "Group_Ernie" andset the Visibility to False and Disabled to True as initially the "Eric" tab will be visible. Click"Save Changes" to save the group updates. All of the commands to rename and update
groups are to be done via the Groups section of the XAD Properties Dialog.

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Now hide the browser object in the editor so that we can add the "Eric" tab objects. With
"Group_Ernie" selected click the "Hide Group in Editor" checkbox on the XAD Properties
Dialog.


For the "Eric" tab add the canvas and text objects in the usual drag and drop manner. For
the sake of keeping the Mosel example code simple in this example the canvas object will
simply be blank. The text object may contain any text you wish and may be entered via the
Capion field of the XAD Properties Dialog. In this example the objects have been given thenames "Eric_Canvas" and "Eric_Text".
By Control clicking the "Eric_Canvas" and "Eric_Text" objects create another group called"Group_Eric". This group should be visible and enabled.



Add the SELECTION Event Callback:Now that the groups of objects are setup we should add the tab SELECTION event callback
to the Mosel code so that something actually happens when the tab with focus is changed.
Double left-clicking on the "The_Tab" object open the Event Dialog, select the SELECTION
event and the Mosel file you created previously and "Go to Procedure".



Associate Code-Referenced Objects with Resource Objects:
Any objects, or groups, created in the Resource Editor that you wish to manipulate in the
Mosel code must have an associated id. In this example we will reference the "The_Tab"
object and the two groups "Group_Eric" and "Group_Ernie". To associate an integer id withthese objects use the two XAD Mosel functions XADgetid and XADgroupgetid, both ofwhich take the string name of the object or group and the id of the XAD window it isassociated with, id_win in this case.



Add the Tab Selection Handling Code:
When either of the two tabs is selected we want to show and enable the objects associatedwith it and hide and disable those objects not associated with it.
Within the The_Tab_Main_Window_SELECTION procedure use the XAD Mosel function
XADtabgettab(id_tab) to retrieve the string name of the currently selected tab. Compare
this name to the two tab names "Eric", or "Ernie" and enable/show or disable/hide the twogroups as appropriate using XADgroupsetvisible and XADgroupenable.
This should result in the following resource and Mosel code:

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You have now created a very simple working example using the resource editor, groups andevents. Provided you have saved all changes to the resource file you should now be able to
run the example and switch between the tabs successfully.

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A PPENDIX A

Contacting FICO
FICO provides clients with support and services for all our products. Refer to the following
sections for more information.

Product support
FICO offers technical support and services ranging from self-help tools to direct assistance with a
FICO technical support engineer. Support is available to all clients who have purchased a FICO
product and have an active support or maintenance contract. You can find support contact
information on the Product Support home page (www.fico.com/support).
On the Product Support home page, you can also register for credentials to log on to FICO Online
Support, our web-based support tool to access Product Support 24x7 from anywhere in the world.
Using FICO Online Support, you can enter cases online, track them through resolution, findarticles in the FICO Knowledge Base, and query known issues.
Please include ’Xpress’ in the subject line of your support queries.

Product education
FICO Product Education is the principal provider of product training for our clients and partners.
Product Education offers instructor-led classroom courses, web-based training, seminars, andtraining tools for both new user enablement and ongoing performance support. For additional
information, visit the Product Education homepage at www.fico.com/en/product-training or
email producteducation@fico.com.

Product documentation
FICO continually looks for new ways to improve and enhance the value of the products andservices we provide. If you have comments or suggestions regarding how we can improve thisdocumentation, let us know by sending your suggestions to techpubs@fico.com.

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Contacting FICO

Sales and maintenanceUSA, CANADA AND ALL AMERICASEmail: XpressSalesUS@fico.com
WORLDWIDE
Email: XpressSalesUK@fico.com
Tel: +44 207 940 8718
Fax: +44 870 420 3601
Xpress Optimization, FICO
FICO HouseInternational Square
Starley Way
Birmingham B37 7GN
UK

Related services
Strategy Consulting: Included in your contract with FICO may be a specified amount ofconsulting time to assist you in using FICO Optimization Modeler to meet your business needs.
Additional consulting time can be arranged by contract.
Conferences and Seminars: FICO offers conferences and seminars on our products and services.
For announcements concerning these events, go to www.fico.com or contact your FICO accountrepresentative.

About FICO
FICO (NYSE:FICO) delivers superior predictive analytics solutions that drive smarter decisions. The
company’s groundbreaking use of mathematics to predict consumer behavior has transformed
entire industries and revolutionized the way risk is managed and products are marketed. FICO’sinnovative solutions include the FICO® Score—the standard measure of consumer credit risk in
the United States—along with industry-leading solutions for managing credit accounts,
identifying and minimizing the impact of fraud, and customizing consumer offers with pinpoint
accuracy. Most of the world’s top banks, as well as leading insurers, retailers, pharmaceuticalcompanies, and government agencies, rely on FICO solutions to accelerate growth, control risk,
boost profits, and meet regulatory and competitive demands. FICO also helps millions ofindividuals manage their personal credit health through www.myfico.com. Learn more atwww.fico.com. FICO: Make every decision countTM .

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IndexA
Auto-complete, 2

Mosel keywords, 2
Mouse over information, 1Ddashboardscheduling, 71
Debug watch, 17
dialogbreakpoint condition, 50
debug options, 49
deploy, 51
list modules, 53
new module wizard, 54
optimizer, 44
run options, 47
self-executing model, 52
source code, 56
view, 47P
pop-up menu
files, 15
folders, 15
project, 15
print, 3project, 14
close, 4new, 4open, 4
save, 4save as, 4Project Explorer Bar, 13
project tree darg-and-drop, 16
PROJECTDIR, 16

E
editor properties, 2Rresource
new, 3
Run Bar, 17F
file
open, 3
save, 3save as, 3
I
Info Bar, 16Mmatrix tab
Column view, 30
Graphical view, 32
Row view, 31
Scaling view, 33
Sketch view, 28
menu
Build, 6
Debug, 6
Deploy, 7
Edit, 4File, 3Help, 9Modules, 7
Optimizer, 9Project, 4View, 5
Window, 8
Wizards, 8Model Explorer Bar, 12

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syntax highlighting, 1T
toolbar
Execution, 11
Navigation, 10
Tools, 12
Tools Bar, 17
Wwizardcomplete models, 70
constraints, 65
data input, 63
debugging, 69
graphing, 67
name type, 62
objective, 64parameters, 62
programming, 68
results tuning, 66
text output, 67
variables, 64
wizards, 57
X
XAD resource editor, 72
adding events, 73

93Indexbrowser, 77
button, 77
canvas, 77
checkbox, 77
deleting objects, 73
droplist, 78
editor, 77
form edit dialog, 73
go to procedure, 76
group marker, 77
groups, 74
input, 77list, 78
multilist, 78
permanent groups, 74
progress, 77
properties dialog, 78
radio, 77
repositioning, 73
scrollbar horizontal, 77
scrollbar vertical, 77
selecting groups, 73
snap to grid, 76tabs, 77
temporary groups, 74
text, 78
toolbar, 76
tree, 77
XADgroupaddmember, 75
XADgroupcreate, 75
XADgroupdisband, 75
XADgroupenable, 75
XADgroupgeth, 74
XADgroupgetid, 74
XADgroupgetw, 74
XADgroupgetx, 75
XADgroupgety, 75
XADgroupremovemember, 75
XADgroupsetpos, 75
XADgroupsetvisible, 75

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