For ex83f.F90:
>
balay@p1 /home/balay/test
$ ls
ex83f.F90
balay@p1 /home/balay/test
$ ls
ex83f.F90
balay@p1 /home/balay/test
$ export PETSC_DIR=$HOME/petsc
balay@p1 /home/balay/test
$ cp $PETSC_DIR/src/ksp/ksp/tests/makefile .
balay@p1 /home/balay/test
$ make ex83f
mpif90 -fPIC -Wall
Please send your attempted makefile and we'll see if we can get it working.
I am not sure if we can organize the include files as Fortran compiler
include files easily. We've always used the preprocessor approach. The Intel
compiler docs indicate the procedure for finding the Fortran
On Thu, Nov 3, 2022 at 8:36 PM Matthew Knepley wrote:
> On Thu, Oct 27, 2022 at 11:57 AM Semplice Matteo <
> matteo.sempl...@uninsubria.it> wrote:
>
>> Dear Petsc developers,
>> I am trying to use a DMSwarm to locate a cloud of points with respect
>> to a background mesh. In the real
On Thu, Oct 27, 2022 at 11:57 AM Semplice Matteo <
matteo.sempl...@uninsubria.it> wrote:
> Dear Petsc developers,
> I am trying to use a DMSwarm to locate a cloud of points with respect
> to a background mesh. In the real application the points will be loaded
> from disk, but I have created a
On Thu, Nov 3, 2022 at 7:52 PM Alexander Lindsay
wrote:
> I have errors on quite a few (but not all) processes of the like
>
> [1]PETSC ERROR: - Error Message
> --
> [1]PETSC ERROR: Nonconforming object sizes
>
I have errors on quite a few (but not all) processes of the like
[1]PETSC ERROR: - Error Message
--
[1]PETSC ERROR: Nonconforming object sizes
[1]PETSC ERROR: Local columns of A10 4137 do not equal local rows of A00
You should pass 1 and 1 not 3, because you are setting one block.
Regarding all the integer values passed in to PETSc routines To be
completely portable you need to declare them as PetscInt and pass the
variables. But if you do not use --with-64-bit-indices in ./configure and you
do not
Barry,
Can you please provide me with an example on how to use
MatSetValuesBlocked?
To play it easy, let's say that I want to insert a 3x3 block matrix b into
the matrix A, rows 0-2, columns 0-2. Up to what I've understood (very few
apparently XD ), I would do like this:
b(3,3) = 11.0
call
Thanks for your response and the code. I understand the potential problem and
how your code demonstrates a bug if the TaoALMMSubsolverObjective() is used in
the manner you use in the example where you directly call TaoComputeObjective()
multiple times line a line search code might.
What I
> On Nov 3, 2022, at 2:33 PM, Mike Welland wrote:
>
> I am coupling a linear diffusion equation with Allen-Cahn in a time dependent
> problem. I'd like to take advantage of the linear block to speed things up.
> I'm trying two approaches:
>
> 1. Allen-Cahn with double well potential:
The error indicates not enough nonzero blocks are preallocated for. Try
something really simple, preallocate for one block and put in one block then
call MatAssemblyBegin/End(), MatView(), if that works then work up to your full
problem.
Barry
> On Nov 3, 2022, at 3:11 PM, Edoardo
Well, definitely using MatsetValuesBlocked in a bad way. Instead if seeing
11 in the first place 3 rows and 3 columns, I see all zeros and random
numbers in row 9 10 and 11...
[image: image.png]
Just to give a bit more of context I am doing like this:
call MatCreate(PETSC_COMM_WORLD, this%A, ierr)
call MatSetSizes(this%A, lm, lm, M, M, ierr) ! lm is the local size
of the matrix , M the global one
call MatSetType(this%A, myType, ierr) ! myType is MATMPIBAIJ
Yes I am doing:
call MatMPIBAIJSetPreallocation(this%A, 4-bdim, flubioSolvers%d_nz,
mesh%d_nnz, flubioSolvers%o_nz, mesh%o_nnz, ierr)
with d_nnz the number of diagonal blocks and o_nnz the number of
off-diagonal blocks. However I am getting this:
[0]PETSC ERROR: - Error
I am coupling a linear diffusion equation with Allen-Cahn in a time
dependent problem. I'd like to take advantage of the linear block to speed
things up. I'm trying two approaches:
1. Allen-Cahn with double well potential: phi^2*(1-phi^2), which makes it
nonlinear. The best performance I have is
> On Nov 3, 2022, at 1:16 PM, Edoardo alinovi wrote:
>
> Ah, I was forgetting the most important thing... Are the size of idxm and
> idxn equal to one if I insert 1 block or should I specify all the rows and
> columns in the block?
Yes, for a single block they are one. The block size is
Ah, I was forgetting the most important thing... Are the size of idxm and
idxn equal to one if I insert 1 block or should I specify all the rows and
columns in the block?
I am getting some memory issues with unallocated non zero values so I must
have made some mistake here... :(
Sorry for the
Also, just to be 100% sure, is m and equal to 3 in 2 and 4 in 3D if my
blocks are 3x3 and 4x4 respectively?
Barry,
so far, I have not experimented with trust-region methods, but I can
imagine that this "design feature" causes no problem for trust-region
methods, if the old point is saved and after the trust-region check
fails the old point is copied to the actual point. But the
implementation of
Hi Barry,
Thanks for popping in. This is my code:
*blockValues =
this%getDiagonalBlockValues(iElement=iElement)call
MatSetValuesBlocked(this%A, 4-bdim, mesh%cellGlobalAddr(iElement)-1,
4-bdim, mesh%cellGlobalAddr(iElement)-1, blockValues, INSERT_VALUES, ierr)*
Hello Matt,
I see, so from an operation point of view, I should pass a 1D array... How
should I unroll my nComp x nComp matrix? by row or by column?
e.g. say that my block is:
A=[
1 2 3
4 5 6
7 8 9
]
than v = [1 2 3 4 5 6 7 8 9] or [1 4 7 2 5 8 3 6 9]?
You can find the current F90 interface definitions we support for
MatSetValuesBlocked() in
/src/mat/f90-mod/petscmat.h90
> On Nov 3, 2022, at 12:16 PM, Edoardo alinovi
> wrote:
>
> Hello Jed/Barry/Petsc friends
>
> I am trying to assemble a block matrix with 3x3 in 2D and 4x4 blocks
On Thu, Nov 3, 2022 at 12:16 PM Edoardo alinovi
wrote:
> Hello Jed/Barry/Petsc friends
>
> I am trying to assemble a block matrix with 3x3 in 2D and 4x4 blocks in 3D
> coming from the fully coupled NS equation.
>
> I am not sure I am understanding the example provided here:
>
Hello Jed/Barry/Petsc friends
I am trying to assemble a block matrix with 3x3 in 2D and 4x4 blocks in 3D
coming from the fully coupled NS equation.
I am not sure I am understanding the example provided here:
https://petsc.org/main/docs/manualpages/Mat/MatSetValuesBlocked/
The description says
Thanks a lot.
El jue., 3 de noviembre de 2022 10:22 a. m., Zhang, Hong
escribió:
> PETSc does not support 'ilutp' . Sequential superlu supports it. You can
> install petsc with superlu, then use runtime options to activate 'ilutp' ,
> e.g.,
> petsc/src/ksp/ksp/tutorials
> ./ex2 -ksp_view
And I see the issue got fixed differently [with braces]
https://github.com/AMReX-Codes/amrex/pull/3011/files
Satish
On Wed, 2 Nov 2022, Satish Balay via petsc-users wrote:
> You can define 'PETSC_HAVE_BROKEN_RECURSIVE_MACRO' and then include
> petsc.h in your sources to avoid these macros in
PETSc does not support 'ilutp' . Sequential superlu supports it. You can
install petsc with superlu, then use runtime options to activate 'ilutp' , e.g.,
petsc/src/ksp/ksp/tutorials
./ex2 -ksp_view -pc_type ilu -pc_factor_mat_solver_type superlu -help |grep
superlu
...
Hi, I'm trying to use ILU as GMRES preconditioner (using PCILU), my
question is how use ILU as 'ilutp' type like MATLAB ( ILU factorization
with threshold and pivoting. )
Thanks. Regards
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