Dear PETSc team,
Is there an example for using MatSeqAIJKron? I’m using MatCreate for all
matrices in the code, and wonder if I need to switch to MatCreateSeqAIJ in
order to use this function? Just want to compute simple Kronecker products of a
sparse matrix with an identity matrix.
Thank
Dear PETSc developers,
I have my own linear solver and am trying to put it into PETSc as an
external solver. Following the implementation of mumps, mkl_cpardiso,
supelu etc, I think I should do the follow:
1. Add my solver name into MatSolverType.
2. Register my solver by calling
On Mon, Dec 5, 2022 at 6:48 AM 김성익 wrote:
> Hello,
>
> In matrix preallocation procedure, I tried 2 options to preallocate global
> matrix.
> The first is ‘MatSeqAIJSetPreallocation’ and the second is
> ‘MatSetPreallocationCOO’.
>
>
>
> When I adopt the first option
I don't think you understand COO. Look at the example
https://petsc.org/release/src/mat/tutorials/ex18.c.html
"MatSetPreallocationCOO" is not a great name because you are giving it the
(i,j) indices not just the sizes for memory allocation.
A MatSetPreallocationCOO that is consistent with
On Mon, Dec 5, 2022 at 3:08 AM 袁煕 wrote:
> Dear PETSc developers,
>
> I have my own linear solver and am trying to put it into PETSc as an
> external solver. Following the implementation of mumps, mkl_cpardiso,
> supelu etc, I think I should do the follow:
>
> 1. Add my solver name into
Hello,
In matrix preallocation procedure, I tried 2 options to preallocate global
matrix.
The first is ‘MatSeqAIJSetPreallocation’ and the second is
‘MatSetPreallocationCOO’.
When I adopt the first option “MatSeqAIJSetPreallocation(Mat, nz, nnz)”, I
just put overestimated nz for getting enough
MUMPS does not support doing the forward or backward solve only. You should ask
MUMPS developers to add an option for this, then we would be able to interface
it in PETSc. Regarding the other Cholesky options (see
https://petsc.org/release/overview/linear_solve_table/), PaStiX has the same
Dear Yuyun,
Here is the simple example that I wrote to test the function:
https://petsc.org/release/src/mat/tests/ex248.c.html
You can stick to MatCreate(), but this will only work if the type of your Mat
is indeed MatSeqAIJ.
If you need this for other types, let us know.
Thanks,
Pierre
> On 5
Great, thank you!
From: Pierre Jolivet
Date: Monday, December 5, 2022 at 4:34 PM
To: Yuyun Yang
Cc: petsc-users
Subject: Re: [petsc-users] Example for MatSeqAIJKron?
Dear Yuyun,
Here is the simple example that I wrote to test the function:
https://petsc.org/release/src/mat/tests/ex248.c.html
Junchao,
Thank you for working on this. If you open the parameter file for, say, the
PSI_2 system test case (benchmarks/params_system_PSI_2.txt), simply add
-dm_mat_type aijkokkos -dm_vec_type kokkos?` to the "petscArgs=" field (or the
corresponding cusparse/cuda option).
Thanks,
Philip
Hi Pierre,
I got following error while compiling PETSc.
make all check
[cid:image001.png@01D908C1.7267DCE0]
Help for this would be appreciated.
Thanks,
Rajesh
From: Pierre Jolivet
Sent: Monday, December 5, 2022 1:15 PM
To: Singh, Rajesh K
Cc: petsc-users@mcs.anl.gov
Subject: Re:
Hello, Philip,
Do I still need to use the feature-petsc-kokkos branch?
--Junchao Zhang
On Mon, Dec 5, 2022 at 11:08 AM Fackler, Philip wrote:
> Junchao,
>
> Thank you for working on this. If you open the parameter file for, say,
> the PSI_2 system test case
Dear All:
I am having diffisulty to install PETSC on the window system. I went through
the the steps esplained in the web site and got following error.
[cid:image001.png@01D908A4.407860F0]
Help for resolving this issue would be really appricaited.
Thanks,
Rajesh
I configured with xolotl branch feature-petsc-kokkos, and typed `make`
under ~/xolotl-build/. Though there were errors, a lot of *Tester were
built.
[ 62%] Built target xolotlViz
[ 63%] Linking CXX executable TemperatureProfileHandlerTester
[ 64%] Linking CXX executable
Hello Rajesh,
Do you need Fortran bindings?
Otherwise, ./configure --with-fortran-bindings=0 should do the trick.
Sowing compilation is broken with MinGW compiler.
If you need Fortran bindings, we could try to fix it.
Thanks,
Pierre
> On 5 Dec 2022, at 9:22 PM, Singh, Rajesh K via petsc-users
>
> On 5 Dec 2022, at 9:50 PM, Singh, Rajesh K wrote:
>
> Hi Pierre,
>
> Thank you so much for prompt response. I will run FORTRAN based code with
> PETSc. Therefore I guess I will need Fortran binding.
OK, so, two things:
1) as said earlier, Sowing is broken with MinGW, but I’m sadly one of
Hi Pierre,
Thank you so much for prompt response. I will run FORTRAN based code with
PETSc. Therefore I guess I will need Fortran binding.
Regards
Rajesh
From: Pierre Jolivet
Sent: Monday, December 5, 2022 12:41 PM
To: Singh, Rajesh K
Cc: petsc-users@mcs.anl.gov
Subject: Re: [petsc-users]
Dear Matt
It seems that I am in the wrong way! I will retry following your example.
Thanks a lot!
Yuan
2022年12月5日(月) 22:11 Matthew Knepley :
> On Mon, Dec 5, 2022 at 3:08 AM 袁煕 wrote:
>
>> Dear PETSc developers,
>>
>> I have my own linear solver and am trying to put it into PETSc as an
>>
Can you send corresponding configure.log and make.log? [should be in
PETSC_DIR/PETSC_ARCH/lib/petsc/conf
Also what is your requirement wrt using PETSc on windows?
- need to link with other MS compiler libraries?
- Can you use WSL?
Our primary instructions for windows usage is with MS/Intel
The build log looks fine. Its not clear why these warnings [and
errors] are coming up in make check [while there are no such warnings
in the build].
Since you are using PETSc fromfortran - Can you try compiling/running
a test manually and see if that works.
cd src/snes/tutorials
make ex5f90
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