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Gurobi solver option missing: PreSparsify

  • May 12, 2025
  • 2 replies
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afattahi
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I cannot find the PreSparsify option of the Gurobi solver in AIMMS. (Parameter Reference - Gurobi Optimizer Reference Manual)

Is there a particular reason that this option is missing? otherwise, is it possible to add the support for this option in the next update? 

Best answer by Marcel Hunting

Hi ​@afattahi. That option is available as 'Presolve sparsify reduction’ for Gurobi 9.5 and higher. See, e.g., the GUROBI 12.0 to AIMMS Mapping table in the AIMMS-Gurobi help for the mapping of Gurobi parameter names to AIMMS option names.

Assistant professor at Utrecht University - Researcher at TNO - Developing the IESA-Opt model

2 replies

Marcel Hunting
AIMMSian
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Hi ​@afattahi. That option is available as 'Presolve sparsify reduction’ for Gurobi 9.5 and higher. See, e.g., the GUROBI 12.0 to AIMMS Mapping table in the AIMMS-Gurobi help for the mapping of Gurobi parameter names to AIMMS option names.

Marcel - AIMMS Optimization Specialist
afattahi
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  • afattahi
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  • May 15, 2025

Thanks, ​@Marcel Hunting!

I was looking for this option in a wrong place. It is categorized under MIP Presolve.

Assistant professor at Utrecht University - Researcher at TNO - Developing the IESA-Opt model
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