Hi Barry,
I checked. On the supercomputer, I had the option "-ksp_view_pre" but it is
not in file I sent you. I am sorry for the confusion.
Regards,
Frank
On Friday, September 9, 2016, Barry Smith wrote:
>
> > On Sep 9, 2016, at 3:11 PM, frank
> On Sep 9, 2016, at 3:11 PM, frank wrote:
>
> Hi Barry,
>
> I think the first KSP view output is from -ksp_view_pre. Before I submitted
> the test, I was not sure whether there would be OOM error or not. So I added
> both -ksp_view_pre and -ksp_view.
But the options
Thank you SO much for helping me out on this. Dumb error from my part not
to notice.
This means the common /mypcs/ elements are preconfigure internally in PETSc?
Regards and happy weekend,
On Fri, Sep 9, 2016 at 5:19 PM, Barry Smith wrote:
>
> The missing third argument
The missing third argument to PCApply means that you haven't allocated the
vector work?
> On Sep 9, 2016, at 3:34 PM, Manuel Valera wrote:
>
> Hello everyone,
>
> I'm having an error with my program that i cannot understand, the weird part
> is that the same
On Fri, Sep 9, 2016 at 9:49 AM, Mark Lohry wrote:
> Regarding DMPlex, I'm unclear on the separation between Index Sets and
> Plex for unstructured solvers. I've got an existing unstructured serial
> solver using petsc's newton-krylov
>
Index Sets are lists of integers.
Hi Barry,
I think the first KSP view output is from -ksp_view_pre. Before I
submitted the test, I was not sure whether there would be OOM error or
not. So I added both -ksp_view_pre and -ksp_view.
Frank
On 09/09/2016 12:38 PM, Barry Smith wrote:
Why does ksp_view2.txt have two KSP
Patrick,
I have only seen this when the "linear" operator turned out to not
actually be linear or at least not linear in double precision.
Are you using differencing or anything in your MatShell that might make it not
be a linear operator in full precision?
Since your problem is so
Why does ksp_view2.txt have two KSP views in it while ksp_view1.txt has only
one KSPView in it? Did you run two different solves in the 2 case but not the
one?
Barry
> On Sep 9, 2016, at 10:56 AM, frank wrote:
>
> Hi,
>
> I want to continue digging into the memory
Hi,
I want to continue digging into the memory problem here.
I did find a work around in the past, which is to use less cores per
node so that each core has 8G memory. However this is deficient and
expensive. I hope to locate the place that uses the most memory.
Here is a brief summary of
Regarding DMPlex, I'm unclear on the separation between Index Sets and
Plex for unstructured solvers. I've got an existing unstructured serial
solver using petsc's newton-krylov solvers. Should I be looking to
parallelize this via IS or plex? Is there an interface for either that
allows me to
I am debugging a linear solver which uses a custom operator and
preconditioner, via MATSHELL and PCSHELL. Convergence seems to be
fine, except that I unexpectedly see a difference between the
"unpreconditioned" and "true" residual norms when I use
-ksp_monitor_true_residual with a
On Fri, Sep 9, 2016 at 4:04 AM, Morten Nobel-Jørgensen wrote:
> Dear PETSc developers and users,
>
> Last week we posted a question regarding an error with DMPlex and multiple
> dofs and have not gotten any feedback yet. This is uncharted waters for us,
> since we have gotten used
Dear PETSc developers and users,
Last week we posted a question regarding an error with DMPlex and multiple dofs
and have not gotten any feedback yet. This is uncharted waters for us, since we
have gotten used to an extremely fast feedback from the PETSc crew. So - with
the chance of sounding
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