On Thu, Jan 5, 2017 at 6:35 PM, Rochan Upadhyay wrote:
> Thanks for prompt reply. I don't need hanging nodes or Dirichlet
> conditions which can
> be easily done by adding constraint DoFs in the Section as you mention.
> My requirement is the following:
> >>> Constraints among Fields:
> >>> I wou
> On Jan 5, 2017, at 6:21 PM, Manuel Valera wrote:
>
> Hello Devs is me again,
>
> I'm trying to distribute a vector to all called processes, the vector would
> be originally in root as a sequential vector and i would like to scatter it,
> what would the best call to do this ?
>
> I already
Thanks for prompt reply. I don't need hanging nodes or Dirichlet conditions
which can
be easily done by adding constraint DoFs in the Section as you mention.
My requirement is the following:
>>> Constraints among Fields:
>>> I would recommend just putting the constraint in as an equation. In
your c
Hello Devs is me again,
I'm trying to distribute a vector to all called processes, the vector would
be originally in root as a sequential vector and i would like to scatter
it, what would the best call to do this ?
I already know how to gather a distributed vector to root with
VecScatterCreateToZ
On Thu, 5 Jan 2017, Satish Balay wrote:
> Well its more of RHEL - than SL. And its just Intel .so files [as far
> as we know] thats triggering this issue.
>
> RHEL generally doesn't make changes that break old binaries. But any
> code change [wihch bug fixes are] - can introduce changed behavior
This is not good. Something is out of whack.
First run 1 and 2 processes with -ksp_view_mat binary -ksp_view_rhs binary
in each case this will generate a file called binaryoutput . Send both files to
petsc-ma...@mcs.anl.gov I want to confirm that the matrices are the same in
both c
On Thu, 5 Jan 2017, Matthew Knepley wrote:
> On Thu, Jan 5, 2017 at 2:37 AM, Klaij, Christiaan wrote:
> > So problem solved for now, thanks to you and Matt for all your
> > help! On the long run I will go for Intel-17 on SL7.3.
> >
> > What worries me though is that a simple update (which happen
> On Jan 5, 2017, at 5:58 AM, Dave May wrote:
>
> Do you now see identical residual histories for a job using 1 rank and 4
> ranks?
Please send the residual histories with the extra options, I'm curious too,
because a Krylov method should not be needed in the inner solve, I just asked
for
On Thu, Jan 5, 2017 at 6:31 AM, Patrick Begou <
patrick.be...@legi.grenoble-inp.fr> wrote:
> I am unable to run any test on petsc. It looks like if the ex19 run freeze
> on the server as it do not use any cpu time and pstree shows
>
> sshd---bash-+-gedit
> `-make---sh-+-gmake---sh---gm
Yes, I read that page and it was that paragraph that made me want to
learn more.
For example, that pages says:
“-pc_gamg_threshold 0.0 is the most robust option (the reason for this
is not obvious) ...”
Where can I find more math-based background on this subject? I mean,
some text that describe
On Thu, Jan 5, 2017 at 2:37 AM, Klaij, Christiaan wrote:
> Satish, Matt
>
> Our sysadmin tells me Scientific Linux is still busy with the
> RedHat 7.3 update, so yes, this is a partial update somewhere
> between 7.2 and 7.3...
>
> No luck with the quotes on my system, but the option
> --with-shar
You want the bottom of page 84 in the manual.
On Wed, Jan 4, 2017 at 4:33 PM, Barry Smith wrote:
>
>The manual page gives a high-level description
> http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/
> PCGAMGSetThreshold.html the exact details can be found in the code here
> htt
I am unable to run any test on petsc. It looks like if the ex19 run freeze on
the server as it do not use any cpu time and pstree shows
sshd---bash-+-gedit
`-make---sh-+-gmake---sh---gmake---sh---mpiexec---ex19
`-tee
I've tested petsc-3.7.5.tar.gz and the lat
Do you now see identical residual histories for a job using 1 rank and 4
ranks?
If not, I am inclined to believe that the IS's you are defining for the
splits in the parallel case are incorrect. The operator created to
approximate the Schur complement with selfp should not depend on the
number of
Dear Barry, dear Dave,
THANK YOU!
You two pointed out the right problem.By using the options you provided
(-fieldsplit_0_ksp_type gmres -fieldsplit_0_ksp_pc_side right
-fieldsplit_1_ksp_type gmres -fieldsplit_1_ksp_pc_side right), the solver
converges in 3 iterations whatever the size of the commu
Satish, Matt
Our sysadmin tells me Scientific Linux is still busy with the
RedHat 7.3 update, so yes, this is a partial update somewhere
between 7.2 and 7.3...
No luck with the quotes on my system, but the option
--with-shared-libraries=0 does work! make test gives:
Running test examples to veri
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