oKit. You have to supply a matrix into the Slepc MFN
> operator to set the problem up as far as I know.
>
> Tyler
>
> From: Matthew Knepley
> Date: Monday, January 30, 2023 at 12:24 PM
> To: Guglielmo, Tyler Hardy
> Cc: Barry Smith , petsc-users@mcs.anl.gov
>
>
Cc: Barry Smith , petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] Kronecker Product
On Mon, Jan 30, 2023 at 3:08 PM Guglielmo, Tyler Hardy via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
I would need the Kronecker product to be explicitly available to perform matrix
expone
st,
>
> Tyler
>
>
>
> *From: *Barry Smith
> *Date: *Monday, January 30, 2023 at 12:01 PM
> *To: *Guglielmo, Tyler Hardy
> *Cc: *petsc-users@mcs.anl.gov
> *Subject: *Re: [petsc-users] Kronecker Product
>
>
>
> What is large? If A and B have dimensions of
To: Guglielmo, Tyler Hardy
Cc: petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] Kronecker Product
What is large? If A and B have dimensions of 1000, then the Kronecker product
is of size 1,000,000. Do you want the Kronecker product to be explicitly formed
or just available as matrix vector products
gt;
> Cc: Barry Smith mailto:bsm...@petsc.dev>>,
> petsc-users@mcs.anl.gov <mailto:petsc-users@mcs.anl.gov>
> mailto:petsc-users@mcs.anl.gov>>
> Subject: Re: [petsc-users] Kronecker Product
>
> On Mon, Jan 30, 2023 at 2:24 PM Guglielmo, Tyler Hardy via petsc-use
-users@mcs.anl.gov
Subject: Re: [petsc-users] Kronecker Product
On Mon, Jan 30, 2023 at 2:24 PM Guglielmo, Tyler Hardy via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
Thanks Barry,
I saw that function, but wasn’t sure how to apply it since the documentation
says that S and T are
To: *Guglielmo, Tyler Hardy
> *Cc: *petsc-users@mcs.anl.gov
> *Subject: *Re: [petsc-users] Kronecker Product
>
>
>
>Do you need the explicit sparse representation of the Kronecker
> product? Or do you want to apply it as an operator or solve systems with
> it? If t
at 11:12 AM
To: Guglielmo, Tyler Hardy
Cc: petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] Kronecker Product
Do you need the explicit sparse representation of the Kronecker product? Or
do you want to apply it as an operator or solve systems with it? If the latter
you can use
https
Do you need the explicit sparse representation of the Kronecker product? Or
do you want to apply it as an operator or solve systems with it? If the latter
you can use
https://petsc.org/release/docs/manualpages/Mat/MatCreateKAIJ/#matcreatekaij
Barry
> On Jan 30, 2023, at 12:53 PM,
Hi all,
I am wondering if there is any functionality for taking Kronecker products of
large sparse matrices that are parallel? MatSeqAIJKron is as close as I have
found, but it seems like this does not work for parallel matrices. Any ideas
here?
An option could be to make A and B
Hello team,
I'd like to ask whether PETSc has a function to compute the Kronecker product
of a sparse matrix with an identity matrix? A Google search didn't lead me to a
manual page (like most of the other PETSc functions), so I'm wondering if this
has been implemented yet.
Thanks very much!
MatCreateMAIJ does that (implicitly).
https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatCreateMAIJ.html
If you want a Kronecker product with a non-identity matrix, this PR may
be of interest.
https://bitbucket.org/petsc/petsc/pull-requests/1334/rmills-mat-kaij/diff
Yuyun Yang
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