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Add a bunch of sanity tests. Small models that test basic capabilities of the newBackend.
Those are easy to debug and can reveal issues.
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A natural first step for improving layout is to try various "one at a time" strategies:
* Solve one constraint or objective at a time
* Solve one shape at a time
* Solve for the current shapes on…
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This issue is to follow-up on #195 , to list remaining open issues and to discuss any further work that needs to be added to bring the new implementation to a stage where (1) it reproduces the old ACE…
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Some nonlinear problems can be very efficiently solved with non-standard methods, possibly abusing the specific structure of the problem. To allow users to efficiently utilize such methods in tandem w…
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We currently have the following nonlinear solvers: ``Trilinoswrappers::NOXSolver`` and ``SUNDIALS::KINSOL``. They provide Newton and Picard methods with various other settings (linear search, Anderson…
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Measure speedup
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**What kind of problems is it mostly used for? Please describe.**
Nonlinear algebraic equations, including but not limited to the [AC power flow models](https://en.wikipedia.org/wiki/Power-flow_stu…
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Attitude Determination and Estimation using Vector Observations: Review, Challenges and Comparative Results. (arXiv:2001.03787v3 [eess.SY] UPDATED)
https://ift.tt/2Y27s27
This paper concerns the probl…
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### Description
Sometimes a few variables belonging to records that are computed by function calls are chosen as tearing variables in nonlinear systems. This is typically not a good tearing, and ad…
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I think solver flags such as `-nls` should be thought as a last resort for experts and development work, not as something that people should normally tamper with.
The standard behaviour for "norma…