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I'm a bit confused by scipy.linalg.sqrtm not raising an error if matrix is singular, since it can't compute anything (returns NaN array). Other functions such as scipy.linalg.inv will raise scipy.lina…
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I am trying to use SLATE to implement a preconditioner for a Schur system A11-A10 A00^{-1} A01, where A00 is a DG mass matrix that assembles the Schur system explicitly (on @wence- 's suggestion here:…
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I am trying to use SLATE to implement a preconditioner for a Schur system A11-A10 A00^{-1} A01, where A00 is a DG mass matrix that assembles the Schur system explicitly (on @wence- 's suggestion here:…
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Also found by Dakshina Ilangovan:
The documentation of `SchurMatrix` states this:
```
* Given a non-singular matrix @p A (often positive definite) and a positive
* semi-definite matrix @p C as wel…
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I've added a sample interface for UPR1 twisted QZ. Please take a look [z_uniplusrankone_twistedqz](https://github.com/jaurentz/eiscor/blob/feature-twisted-upr1/src/complex_double/z_uniplusrankone_twis…
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Hi,
I'm looking to solve a linear system which is algebraically similar to the Stokes problem, in the sense that I have a matrix in the following block form:
```
[ A B ]
[ B^T 0 ]
```
…
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The MueLu timer summary (which uses Teuchos timers) at the end of drekar is wrong. Neither the Setup nor Ac times include the matrix-matrix multiply time. This is likely due to OpenMP threading and …
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I am trying to figure out how to add support for shallow copies/views to BlockVectors used as multi-vectors (i.e. all blocks have the same distribution and size),
That's something Anasazi (Trilino…
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I want to use FlashEigen (release branch or version 0.3.1) on a large (currently 1e8 edges) undirected graph with a small average degree of 1 to 1.01. FlashX is installed with trillinos and R support.…
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**Modified by dietmarw on 7 Sep 2012 07:41 UTC**
```
[Modelica 3.2.1/Math/package.mo:2309:9-2309:18:writable]
Error: Type mismatch in assignment in QZ := {{1}} of Real[size(A, 1), size(A, 2)] := Inte…