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This is to track a subset of #15979 namely the direct solvers from Amesos2, the iterative solvers from Belos and the preconditioners from Ifpack2 (and maybe other packages)
All these packages provi…
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Hello, I am using AMG with its CUDA backend to solve equations from FEM. In each time step, the matrix A will be modified a little, and I want to keep the AMG in order to make the simulation faster. I…
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One of the method I coded in Rust is the "Conjugate gradient solver for positive-definite matrices." I see that you already coded this method. I didn't compare them yet because there's a small differe…
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Hi,
Could you add information about the Preconditioner format.
If one use the Wikipeida convention ([The Preconditioned Conjugate Gradient Method](https://en.wikipedia.org/wiki/Conjugate_gradien…
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All Krylov solvers are designed to take a preconditioner. If no preconditioner is present, an explicit copy of the Krylov vector is invoked. We see this can introduce significant overhead. E.g. for th…
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# In a Nutshell
The `statespace` module has a general abstract class [`Preconditioner`](https://probnum.readthedocs.io/en/latest/automod/probnum.statespace.Preconditioner.html#probnum.statespace.Prec…
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Hello,
I notice that preconditioning has not been implemented for MINRES and GMRES. Do you intended to implement it in the future or is there a way to work around it ?
Thanks very much.
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We are still missing plots for preconditioner benchmarks. I don't know where to find a set of preconditioner benchmark results to really test it.
Alternatives:
- create a dummy benchmark result fo…
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Since #3184 the [QS/regtest-almo-2/ion-pair.inp](https://github.com/cp2k/cp2k/blob/master/tests/QS/regtest-almo-2/ion-pair.inp) has been segfaulting:
```
==130454== Invalid write of size 8
==130…