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90% of Ipopt run time is spent in Hessian/constraints evaluation, very little time in linear solver. Is it normal?
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9
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235
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April 15, 2026
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Get Lagrange multipliers from Ipopt with Optimization.jl
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1
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94
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November 24, 2025
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Min max Ipopt opti : error in step computation
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6
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229
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September 22, 2025
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Quickest way to build solution sensitivity information from Ipopt (sIpopt)
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1
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108
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September 6, 2025
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IPOPT Watchdog Iterations Tracking
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2
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76
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May 19, 2025
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Specifying the Hessian for some (but not all) user-defined operators
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2
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77
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May 6, 2025
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Can Ipopt provide a dual bound?
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2
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74
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April 24, 2025
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Warm starting Ipopt with higher discretization points
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8
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285
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April 23, 2025
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Ipopt does NOT memorize a best solution found so far
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7
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252
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April 23, 2025
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Error with Ipopt.jl and ipopt.out file
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3
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116
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April 2, 2025
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Solving large scale NLP problem on HPC cluster
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5
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232
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March 25, 2025
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Ipopt's "local" optimum can be very substandard
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8
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251
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March 23, 2025
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The solution deteriorates if the domain of decisions is improperly set when using Ipopt
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4
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145
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March 15, 2025
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Restrictions when adding a binary variable - Local Infeasibility (Ipopt, Juniper)
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15
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351
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January 23, 2025
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Limiting step size in optimization variable between optimization steps of nonlinear constrained optimization problem
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4
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178
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August 20, 2024
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How to speed up ipopt with HSL ma86 using parallel processing
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7
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626
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July 30, 2024
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Struggle at large scale problem of nlp using ipopt
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10
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401
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June 26, 2024
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User defined gradient in JuMP with Ipopt: gradient with user data
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3
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184
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June 26, 2024
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Nonlinear Least Squares Millions of Allocations
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9
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603
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June 15, 2024
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Trajectory Optimization using Pseudospectral collocation
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10
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969
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May 30, 2024
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How to get HSL up and running with Ipopt
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6
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875
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May 11, 2024
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Nonlinear Optimization with Many Constraints + Autodifferentiation: Which Julia Solution?
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23
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1083
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March 15, 2024
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Use of integer variables Juniper Error (MI-NLP)
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2
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193
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March 14, 2024
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Long NLP evaluation time in Ipopt
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6
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571
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February 14, 2024
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Converting non-linear optimization with fmincom from Matlab to Julia
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12
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1244
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November 23, 2023
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How to set a Non-linear function with double summatory
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4
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289
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October 29, 2023
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Is there a Symbolics.jl interface to Ipopt (or similar)?
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17
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838
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June 14, 2023
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Callback function in IPOP for catching inner iterations
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1
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278
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May 4, 2023
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Nested Sum in NLObjective -
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2
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246
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March 31, 2023
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Set_start_value to reduce iterations
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1
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255
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March 29, 2023
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