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  1. Gurobi Help Center
  2. Knowledge Base
  3. Accounts and Licensing
  4. Other Licensing Topics

Other Licensing Topics

  • Support for free trial licenses
  • How do I choose a Gurobi license type?
  • How do I check for a valid license file?
  • What system changes can invalidate a license file?
  • How does Gurobi count cores?
  • How do I configure an AWS EC2 instance so the license file remains valid?
  • How do I request a license for an older version of Gurobi?
  • How do I resolve a "Model too large for size-limited Gurobi license" error?
  • Google Colab: Installation and Licensing
  • How do I resolve an "ERROR 10009: No HostID specified in license file"?
  • How do I resolve an "ERROR 10009: HostID mismatch"?
  • How do I resolve an "ERROR 10009: License is for 8 cores, machine has XX"?
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