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Currently I'm trying to solve an optimization problem wherein I have a Hessian I know to be sparse. Thus, I have coded my analytical Hessian to return a sparse matrix for use in Newton's method. I hav…
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Warnung: In model 'Configural' Optimizer returned a non-zero status code 6. The model does not satisfy the first-order optimality conditions to the required accuracy, and no improved point for the mer…
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Hi,
I am running LBFGS optimization algorithm with MoreThuente linesearch algorithm.
I track the execution of the algorithm by damping the output of the trace into the terminal.
In some cases (…
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I've seen a few times while developing that newton and newton cg will hang indefinitely sometimes in the case of non-convergence, pegging the CPU with no output.
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The TRPO paper (Appendix C) claims that "we use a line search to ensure improvement of the surrogate objective and satisfaction of the KL divergence constraint". However, in the current codebase, the …
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The [documentation of `callback`](https://docs.sciml.ai/Optimization/stable/API/solve/#CommonSolve.solve-Tuple{OptimizationProblem,%20Any}) says
> The callback function callback is a function whic…
goerz updated
7 months ago
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During groundstate simulations for MPS close to exact analytical state (e.g. SU(2)), the GradientGrassmann can hang in the linesearch function of OptimKit.jl
This is due to the maxiter taking its d…
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Hi,
I'm using LaMEM to run a 2D subduction model with phase transition from basalt to eclogite. I set an internal velocity 5cm/yr on the horizontal plate to initializing subduction. The viscosity f…
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Wrapping calls to the `Executor` inside a function is typically not an issue when the types are known:
```rust
fn optimize(cost: Rosenbrock, init_param: Array1) -> Array1 {
let linesearch = M…
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### Discussed in https://github.com/argmin-rs/argmin/discussions/358
Originally posted by **itrumper** May 24, 2023
I have been using the More-Thuente linesearch with a L-BFGS solver on an opt…