How do I calculate the rank of my A matrix? I couldn't find anything in PETSC
documentation. It seems like a mumps functionality, but I cannot get any output
regarding null pivots/rank deficiency.
Sidd
CCNS, WPI
From: Jose E. Roman
Sent:
Hi Matt,
Noted for the naming convention.
Yes, it is a Newton method (see Pan, V. and Reif, J., Fast and Efficient
Parallel Solution of Dense Linear Systems, Computers Math. Applications.
Vol. 17, No. 11, pp. 1481-1491, 1989)
The dense matrix I have is repeatedly inverted while slowly changing
On Thu, Sep 14, 2017 at 11:26 AM, Matthew Knepley wrote:
> On Thu, Sep 14, 2017 at 1:07 PM, Kong, Fande wrote:
>
>>
>>
>> On Thu, Sep 14, 2017 at 10:35 AM, Barry Smith wrote:
>>
>>>
>>> > On Sep 14, 2017, at 11:10 AM, Kong, Fande
On Thu, Sep 14, 2017 at 1:07 PM, Kong, Fande wrote:
>
>
> On Thu, Sep 14, 2017 at 10:35 AM, Barry Smith wrote:
>
>>
>> > On Sep 14, 2017, at 11:10 AM, Kong, Fande wrote:
>> >
>> >
>> >
>> > On Thu, Sep 14, 2017 at 9:47 AM, Matthew
On Thu, Sep 14, 2017 at 10:35 AM, Barry Smith wrote:
>
> > On Sep 14, 2017, at 11:10 AM, Kong, Fande wrote:
> >
> >
> >
> > On Thu, Sep 14, 2017 at 9:47 AM, Matthew Knepley
> wrote:
> > On Thu, Sep 14, 2017 at 11:43 AM, Adriano Côrtes
> On Sep 14, 2017, at 11:10 AM, Kong, Fande wrote:
>
>
>
> On Thu, Sep 14, 2017 at 9:47 AM, Matthew Knepley wrote:
> On Thu, Sep 14, 2017 at 11:43 AM, Adriano Côrtes
> wrote:
> Dear Matthew,
>
> Thank you for your return. It
"Kong, Fande" writes:
>> Given the way I/O is structured on big machines, we believe the multiple
>> file route is a huge mistake. Also, all our measurements
>> say that sending some data on the network is not noticeable given the disk
>> access costs.
>>
>
> I have slightly
On Thu, Sep 14, 2017 at 9:47 AM, Matthew Knepley wrote:
> On Thu, Sep 14, 2017 at 11:43 AM, Adriano Côrtes
> wrote:
>
>> Dear Matthew,
>>
>> Thank you for your return. It worked, but this prompts another question.
>> So why PetscViewer does not write
On Thu, Sep 14, 2017 at 11:43 AM, Adriano Côrtes
wrote:
> Dear Matthew,
>
> Thank you for your return. It worked, but this prompts another question.
> So why PetscViewer does not write both files (.h5 and .xmf) directly,
> instead of having to post-proc the .h5 file (in
Dear Matthew,
Thank you for your return. It worked, but this prompts another question. So
why PetscViewer does not write both files (.h5 and .xmf) directly, instead
of having to post-proc the .h5 file (in serial)?
And what about big 3D simulations? PETSc always serialize the output of the
On Thu, Sep 14, 2017 at 10:30 AM, Adriano Côrtes
wrote:
> Dear all,
>
> I am running the SNES ex12 and I'm passing the options -dm_view
> hdf5:sol.h5 -vec_view hdf5:sol.h5::append to generate an output file. The
> .h5 file is generated, but I'm not being able to load it
Dear all,
I am running the SNES ex12 and I'm passing the options -dm_view
hdf5:sol.h5 -vec_view hdf5:sol.h5::append to generate an output file. The
.h5 file is generated, but I'm not being able to load it in Paraview
(5.4.0-64bits). Paraview recognizes the file and offers severel options to
read
> El 14 sept 2017, a las 0:27, Pandey, Siddhant escribió:
>
> Hello all,
>
> I am diagonalizing a hermitian matrix (MatIsHermitian = 1 up to a tolerance
> of 1e-15) using krylovschur, with EPS_TARGET_MAGNITUDE = 0, but getting
> complex eigenvalues. Also, I am getting
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