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We have stayed compatible with very old Ipopt versions because Ubuntu/Debian shipped binaries for Ipopt 3.11. The maintainer for that Debian package is unresponsive and it hasn't changed for many year…
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For difficult problems there is still a mismatch between Fatrop and IPOPT. Below you can find such a challenging problem.
Fatrop does not appear to converge for this problem and returns all zeros …
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It appears to automatically set the `output_file` option. To reproduce, write any Ipopt-compatible `model.nl` file to a fresh temp directory under the IDAES binary directory (e.g. `~/.idaes/bin`). Run…
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@PierreMartinon @gergaud @ocots Many thanks @amontoison for your input on this. To summarise:
- [ ] we should add to our direct `solve` an option allowing to change the linear solver used by `Ipopt`:…
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### Description
The IPOPT test in test_bench_GwGm doesn't converge.
No errors are thrown, and due to the generous 1% tolerance on the assert_near_equal() constraints, then the tests pass.
This exam…
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**Issue type**
- [ ] New feature
- [X] Bug
- [ ] Discussion
- [ ] Other
**Relates to**
- [X] OPFLOW
- [ ] SOPFLOW
- [ ] SCOPFLOW
- [ ] TCOPFLOW
- [ ] CMake build system
- [ ] Spack config…
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![image](https://github.com/user-attachments/assets/d26ad247-9b44-4b7a-9fca-ab04fb3a3414)
Look! This is where the exception comes up, and the detailed is shown as follows:
![image](https://github.co…
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Hi!
I am using CASADi and ipopt to solve an NMPC in matlab, how can I correctly warm start the ipopt solver?
I am currently setting
`opts.ipopt.hessian_approximation = 'limited-memory';
opts.i…
fp018 updated
1 month ago
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When construction an OCP via the Optistack and provide options to suppress printout there is no print when calling `opti.solve().`
But when constructing the wrapper function `opti.to_function()`, pr…
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In this reference:
: https://cyipopt.readthedocs.io/en/latest/reference.html#cyipopt.Problem.solve
the method solve is given like this:
![image](https://github.com/user-attachments/assets/f7fd0952-…