Hello,
I'm wondering how I could go about providing a matrix factorization calculated
in Petsc to the eigenvalue routines in Slepc. I'm trying to solve the
eigenvalue problem for stability, where the solution to KU=F is needed to
construct the A-matrix (K_sigma) in the eigenvalue problem.
Satish,
I've noticed that SuperLU depends on metis and parmetis and that
PETSc downloads the versions 5.1.0-p3 and 4.0.3-p3. These are
different from the Karypis latest stable versions (without the
-p3). Do I really need these -p3 versions?
If so, after configure, compilation and installation by
"Klaij, Christiaan" writes:
> Satish,
>
> I've noticed that SuperLU depends on metis and parmetis and that
> PETSc downloads the versions 5.1.0-p3 and 4.0.3-p3. These are
> different from the Karypis latest stable versions (without the
> -p3). Do I really need these -p3
On Mon, 31 Oct 2016, Klaij, Christiaan wrote:
> Satish,
>
> I've noticed that SuperLU depends on metis and parmetis and that
> PETSc downloads the versions 5.1.0-p3 and 4.0.3-p3. These are
> different from the Karypis latest stable versions (without the
> -p3). Do I really need these -p3
On Mon, Oct 31, 2016 at 10:29 AM, Kong, Fande wrote:
> On Mon, Oct 31, 2016 at 8:44 AM, Jed Brown wrote:
>
>> Jeremy Theler writes:
>>
>> > Hi again
>> >
>> > I have been wokring on these issues. Long story short: it is about the
>> >
On Mon, Oct 31, 2016 at 8:44 AM, Jed Brown wrote:
> Jeremy Theler writes:
>
> > Hi again
> >
> > I have been wokring on these issues. Long story short: it is about the
> > ordering of the unknown fields in the vector.
> >
> > Long story:
> > The physics
Jeremy Theler writes:
> Hi again
>
> I have been wokring on these issues. Long story short: it is about the
> ordering of the unknown fields in the vector.
>
> Long story:
> The physics is linear elastic problem, you can see it does work with LU
> over a simple cube (warp
"Kong, Fande" writes:
> If the boundary values are not zero, no way to maintain symmetry unless we
> reduce the extra part of the matrix. Not updating the columns is better in
> this situation.
The inhomogeneity of the boundary condition has nothing to do with operator
Jed,
Thanks, that line in the cmake file is exactly what I needed to
know. A petsc configure option would be nice to have, but it's
too difficult for me to do right now, I'll just hack the file
instead.
Chris
dr. ir. Christiaan Klaij | CFD Researcher | Research & Development
MARIN | T +31 317
On Mon, 2016-10-31 at 08:44 -0600, Jed Brown wrote:
> > After understanding Matt's point about the near nullspace (and reading
> > some interesting comments from Jed on scicomp stackexchange) I did built
> > my own vectors (I had to take a look at MatNullSpaceCreateRigidBody()
> > because I found
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