HOW-TO

  • Getting Started
    • AIMMS Basics
      • Getting Started Tutorials
        • Tutorial for Beginners
      • Keyboard shortcuts for AIMMS
      • Share an AIMMS Project
      • Install AIMMS in another location
      • Overview: Create a reliable and successful AIMMS application
      • Add AIMMS Libraries
      • Encrypt Projects to Protect Intellectual Property
      • Overview: Model Sources, Version Control and aimmspack Files
    • Program Settings
      • Export Code to Another Project
      • Display Line Numbers in the Editor
      • Change Syntax Highlighting and Display Options
      • Set Encoding Format
      • Adjust Engine and Solver Settings
    • Licensing
      • Install single user developer license
      • Transfer a Developer License to Another Machine
      • Resolve License Error: Nodelock file is read-only
      • Resolve License Issues
      • How to link a solver to AIMMS
      • Activate Machine Nodelock Offline
      • Licensing using Network License Server
        • Configure a Network License
        • Register Named Users in Network License Manager
        • Install the Network License on a client computer
        • Migrate the AIMMS PRO License Server
  • AIMMS Developer
    • Data Connection
      • Databases
        • Which ODBC Drivers
        • Link an SQLite Database to a Project
        • Install Side-by-Side Drivers
        • Connection string for Access database files
        • Write Selected Database Tables
        • Write to a Database Efficiently
        • Write data to a table
        • Adapt model when linked database table is modified
        • Exchange data with the AIMMS Cloud Platform
        • Reading relations and indexed sets from databases
        • DirectSQL Example
        • Create a static AIMMS Library from a runtime library
      • Excel and CSV
        • AIMMS Excel Library - AXLL
        • Read Columns of Data from Excel
        • Read and Write CSV Files
        • Determine Data Ranges in Excel Files
      • HTTP Library
        • Overview: HTTP Client Library
        • Extract Data from an XML File
        • Extract XML File from a Server with the HTTP Library
        • Retrieve Geographic Data with Google Maps API
        • Retrieve Geographic coordinates with Google Maps API
        • Extract Photos Using the Flickr API
        • Convert Audio File with IBM API
        • Use the IBM Image Recognition API
        • Integrate AIMMS with Models Built in Languages like Python or R
        • Integrate AIMMS with Python
        • Integrate AIMMS with R
      • Data Exchange Library
        • How to integrate the Data Exchange Library
        • How to use the Data Exchange Library for extracting files and data
        • How to create mappings for matrix-oriented data via name-binds-to
        • Reading slices of data via ExternalBinding mapping element
        • Dealing with different data types in the DEX
        • OpenAPI
      • Other Functions
        • Create Email Templates
        • Overview: Email Client Library
        • Create an External Function with Visual Studio
        • Exchange Data with External Source
        • Run Executable Files
        • Run Batch Commands with AIMMS Command Line Tool
        • Link AIMMS with Tableau
        • Connect AIMMS with Gurobi
        • Overview: Linking to AIMMS
    • Mathematical Modeling
      • Adapt Solve Procedure with Callbacks for GMP
      • Color a Map with Constraint Programming
      • Use Constraint Programming to Solve ROGO Puzzle
      • Optimize Shift Schedules
      • Reduce the Time Window for Scheduling Jobs
      • Optimize Scheduling for Project Planning
      • Use a Multi-Objective Approach
      • Minimize Objective Containing a min Operator
      • Model Variables with Limited Values
      • Various (integer) linear modeling tricks
      • Model a Rounded Variable
      • Debug an Infeasible Model
      • Speed Up MIP Solve
      • Providing an Initial Solution to MIP Solvers
      • Data for Optimization Libaries
      • Nonlinear Presolve Algorithm in AIMMS
      • AIMMS Outer Approximation Algorithm for MINLP (using GMP functionality)
      • Solving convex MINLP problems with AIMMS
      • Vehicle Routing
        • Capacitated Vehicle Routing Problem Library
        • Capacitated Vehicle Routing Problem formulation
        • Explicit Dantzig-Fulkerson-Johnson formulation
        • Implicit Dantzig-Fulkerson-Johnson formulation
        • Miller-Tucker-Zemlin formulation
        • Time Windows
        • Testing the Library
    • AIMMS Language
      • AIMMS Language Basics
        • Overview: Set, Subset, Index and Element Parameter
        • Identifier Naming Convention
        • Application initialization and termination with libraries
        • Standardize Random Data in Distribution Functions
        • Using LoopCount instead of explicit counting parameter in loops
        • Solve in a Loop
        • Local Binding vs. Default Binding
        • Model category mapping of items
        • Monitor Identifiers for Changes
        • Convert string to numerical value
        • Write and Read AIMMS Data in Text Format
        • Interrupt Execution During a Single Statement
        • Generate random numbers
        • Get Name of an AIMMS Case
        • Check Computations with Units of Measurement
        • Localize Units of Measurement per User
        • Save a Case from an AIMMS Procedure
        • Identify differences
        • Finding unused identifiers
      • AIMMS sets
        • Composite objects
        • Representing time
        • Element after Last
        • Handling of Integer Sets and Operators
        • Select Constraints and Variables for a Math Program Declaration
        • Multiple indices for a set
        • Overview: types of Set
        • Overview: NBest Operator
        • Remove elements from a set
      • Execution Efficiency
        • Analyze Long Execution Time
        • Measure Execution Time
        • Optimize Execution Time
        • Reduce Memory Usage
        • Investigate Memory in Use
        • Monitor Memory Usage and Leaks
      • Libraries
        • Library of functions and procedures
        • Test Driven Development using the AIMMSUnitTest Library
        • Retrieve Value of Dynamic Identifier
        • Repeat Data with Model Query and Model Edit
        • Use Formulas as Data
        • Runtime functions with arguments
        • Create a static AIMMS Library from a runtime library
      • Solvers
        • Change the Frequency of Progress Updates
        • Retrieve Solver Log Files in AIMMS Developer
        • Retrieve Solver Log Files in AIMMS PRO
        • Overview: Generated Mathematical Programs
        • Set Stop Criteria for Math Programs
        • Generate Multiple Solutions with CP Optimizer
        • Use Alternative MIP Solutions with CPLEX Solution Pool
        • Automatic Benders’ decomposition
        • Solve with Benders Decomposition in CPLEX
        • Solve with Lazy Constraints
        • Debug Infeasible or Unbounded Results
        • Change the Default Solvers Used
        • Create Local Solver Configuration
        • Solve MINLP problems with AOA
        • Check if variable values satisfy constraints
        • Use a Multi-Objective Approach
        • Tune CPLEX Options from AIMMS
        • Solve in parallel with Asynchronous Solver Sessions
        • Adding a Solver
    • Error Handling
      • Get Log Files
      • Get More Log Information
      • Handle errors and warnings
      • Customize Settings for Errors and Warnings
      • Identify error
      • Configuring the logging of sessions ran on a AIMMS PRO on Premise
      • Download Server Session Log
      • Tracing procedures
      • In model tracing
      • Sending a dump file?
      • What is a dump file?
      • Trouble shooting
        • Openstreetmap images missing from network object
        • Academic and community licenses: No logon response from server
        • Storing project in One-Drive: A file cannot be created when it already exists
        • Empty WebUI after upgrade
        • Sudden Microsoft Access reporting: “make sure this is a valid datasource”
        • Error message “tlsv1 alert protocol version”
        • Writing to a Snowflake database
  • Application UI
    • UI Features
      • Showing progress of long running algorithms
      • Working with Wonderful WebUI Widgets
      • Create Wonderful WebUI Widgets
      • The iFrame widget
      • Create Forms in WebUI
      • Zoom and Scroll in a Gantt Chart
      • Sailing across the world
      • Add Compressed Files for User Download
      • Selecting Pages for Workflow Panels
      • Combine Bar Chart and Line Chart
      • Comparing schedules from scenarios
      • Add qualitative color palettes
      • Consistent data coloring on an AIMMS WebUI page
      • Refreshing an Image widget without changing the file name
      • Hiding Default Values
      • Using Scalar Border Annotation
      • Disable Standard WebUI Functions
    • Styling
      • Change Widget Styles with CSS
      • Adding a logo to an AIMMS WebUI app
      • Change Hover and Select Effects for WebUI Charts
      • Display an On/Off Switch in Widgets
      • Adding an Icon on your Button
      • Adding an Icon on your Menu Bar
      • Dos and Don’ts
      • Best Practices in your Application
  • Deployment
    • PRO Basics
      • Size AIMMS PRO Server Hardware
      • Publishing to offline servers
      • Create PRO User Groups
      • Understanding Concurrent Usage on AIMMS PRO/Cloud
      • Overview: Best Practices for Operating AIMMS PRO
      • Send and Receive Messages
      • Schedule Regular Jobs
      • Upload and Download Files on AIMMS PRO
      • Secure File Access
      • Copy Folder Operations in PRO Storage
      • Change AIMMS PRO account
      • Number of running and pending solver sessions
      • Migrate PRO Server to Another Machine
      • Troubleshoot Unresponsive Applications
      • Scaling AIMMS PRO
      • Protect AIMMS PRO installation for business continuity
      • Waiting for sub jobs to complete
      • Investigate Behavior of AIMMS PRO Job
    • Cloud Platform Basics
      • Exchange data with the AIMMS Cloud Platform
    • Client-Server Communication
      • Create responding applications
      • Deploy an Application on AIMMS PRO
      • Develop Multi-Platform Applications
      • Keep WebUI Active During Solve
      • Load solver session Results Manually
      • Use the Progress Window in WebUI
      • Show Intermediate Solutions
      • Interrupt the solver session
      • Modifying Session Timeout Duration for WebUI Apps
      • Communicate Data Changes in WebUI
      • Exporting aimmspack for WinUI or WebUI
      • Reduce Exchange Between Client Session and solver session
    • AIMMS PRO API
      • Start a Job via PRO API using Java
      • Start a Job via PRO API using C#
    • Collaborative Data Management (CDM)
      • Install CDM Service
      • Log CDM
  • Software Evolution
    • Evolution of AIMMS using Transport Layer Security
    • Convert a GAMS Model or AIMMS 3 model to an AIMMS 4 Model
    • Overview: Deprecation of Compound Sets
    • Prepare for the Deprecation of Compound Sets
    • Convert Files from DAT to DATA
    • Using UNICODE in maintained AIMMS applications
    • Upgrade WebUI Page Actions
    • Upgrade Old WebUI Maps
    • Upgrade an AIMMS PRO Installation
    • Check Version Dependencies for AIMMS Developer and AIMMS PRO
    • Update WebUI to newer AIMMS version
    • Unsupported browser
    • WinUI
      • Align Objects in WinUI
      • Change Views of 2D Charts in a WinUI Page
      • Enable the Page Manager
      • Add a Custom Startup Image in WinUI
      • More logging of WinUI Published Applications
  • Examples
    • Examples vs WebUI Widgets
    • Application Examples
      • Car Selection
      • Circle Packing
      • Contract Allocation
      • Data Reconciliation
      • Distribution Center Allocation
      • Economic Exchange Equilibrium
      • Employee Scheduling
      • Flow Shop
      • Gate Assignment problem
      • Knapsack Problem
      • Life Cycle Consumption
      • Project Analysis
      • Railway Stock
      • Reindeer Pairing
      • Sudoku
      • Traffic Equilibrium
      • Transport Model
      • Traveling Salesman
    • Functional Examples
      • 3D Chart
      • AIMMS API
      • Arcs and Nodes
      • Calendar
      • Camping
      • Chance Constraints
      • Coloring
      • Create CSV File
      • Database Inspection
      • Database Interface Generation
      • Data Feed
      • Date Aggregation
      • Demand Forecasting
      • Distributed Solver Sessions
      • Distributions
      • Email and Sound Support
      • Error Handling
      • Experiment
      • External Procedure
      • Gantt Chart
      • GIS Support
      • Goal Programming
      • Horizon
      • Indexed Page
      • ipTwist
      • Interrupt AIMMS Externally
      • Linked Objects
      • Model Edit API
      • Model Edit Functions
      • MPS Functions
      • Multi Start
      • Nested Solve
      • Oil Well Drilling
      • Page Resizability
      • Pivot Table
      • Power System Expansion RO
      • Print Pages
      • Rolling Horizon
      • Stochastic Programming
      • Tea Consumption
    • Modeling Book Examples
      • Bandwidth Allocation
      • Cutting Stock
      • Diet Problem
      • Employee Training
      • Facility Location Choice
      • Farm Planning
      • File Merge
      • Inventory Control
      • Investment Portfolio Selection
      • Media Selection
      • Performance Assessment
      • Power System Expansion
      • Refinery Pooling Planning
      • Telecommunication Network Design
      • Two Level Decision
    • Practical Examples
      • Chemical Engineering: Blending problem
      • Chemical Engineering: Chemical Equilibrium problem
      • Energy: Oil pipeline design
      • Energy: Water Distribution Network Design
      • Power Systems Planning - Methods and Applications
      • Engineering: 2D Strip Packing
      • Engineering: Goddard rocket
      • Engineering: Hanging chain
      • Engineering: Largest small polygon
      • Engineering: Robot arm
      • Engineering: Structural Optimization
      • Location: Capacitated warehouse location
      • Location: Capacitated facility location problem (CFLP)
      • Lot Sizing: Multi level bucket
      • Lot Sizing: Single level big bucket
      • Lot Sizing: Single level small bucket
      • Lot Sizing: Single level small bucket with two items
      • Miscellaneous: Asynchronous solver sessions
      • Miscellaneous: Multistart
      • Multiple Solutions: Dice problem
      • Production Planning: Machine scheduling
      • Routing: Capacitated Vehicle Routing Problem
      • Routing: Capacitated Vehicle Routing Problem with Time Windows
      • Telecommunications: Delay constrained routing
      • Telecommunications: Filter design
      • Telecommunications: Capacitated network design problem
      • Transportation: Aircraft Assignment
      • Transportation: Aircraft landing
      • Transportation: Piecewise linear transportation
      • Uncertainty: Synchronous Optical Network Ring Design
      • Uncertainty: Production Planning - Robust Optimization
      • Uncertainty: Production Planning - Stochastic Programming
  • Toolkit
    • Comparing Profiler Runs
    • Stopwatch Library
  • Recently added
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  • How To
    • Getting Started
    • AIMMS Developer
    • Application UI
    • Deployment
    • Software Evolution
    • Examples
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    • AIMMS Development RELEASE NOTES
    • AIMMS Deployment RELEASE NOTES
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  • How-To »
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  • AIMMS Language »
  • Solvers
  • Edit on Github
AIMMS Solvers Help & Support

Solvers

Mathematical Programming solution algorithms, solvers for short, are the muscles inside AIMMS applications. The articles in this section contain tips and tricks for steering these solvers and interpreting their solutions and behavior.

  • Change the Frequency of Progress Updates
  • Retrieve Solver Log Files in AIMMS Developer
  • Retrieve Solver Log Files in AIMMS PRO
  • Overview: Generated Mathematical Programs
  • Set Stop Criteria for Math Programs
  • Generate Multiple Solutions with CP Optimizer
  • Use Alternative MIP Solutions with CPLEX Solution Pool
  • Automatic Benders’ decomposition
  • Solve with Benders Decomposition in CPLEX
  • Solve with Lazy Constraints
  • Debug Infeasible or Unbounded Results
  • Change the Default Solvers Used
  • Create Local Solver Configuration
  • Solve MINLP problems with AOA
  • Check if variable values satisfy constraints
  • Use a Multi-Objective Approach
  • Tune CPLEX Options from AIMMS
  • Solve in parallel with Asynchronous Solver Sessions
  • Adding a Solver
Last updated: Oct 25, 2022

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