I'm running some code written by myself, using PETSC with MPI. It runs fine
with less than or equal to 12 cores. However, if I ran it with 16 cores, it
gives me an error. By looking at the error message, it seems that the error
happens at a line where I have something like this:
ierr =
Hello,
Am Montag, 13. Juli 2015, 12:26:21 schrieb Barry Smith:
Run under valgrind first, see if it gives any more details about the memory
issue http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
I tried running it like that:
valgrind --tool=memcheck ./pmpi A -malloc off
Hi everyone,
As the title says, I have an issue regarding all three. Not sure which
mailing to post this to but i figured somebody here may help.
I was attempting to install Firedrake on my Ubuntu PC, so far it has not
worked yet. However, after my failed attempt, i tried to run some of my old
Hi Lawrence,
I just resolved this issue, you're right I did have two petsc4py's
(manually removing the one in /usr/local/... did the trick) and I undid
every installation step i took for Firedrake. Seems the issue was me
installing FEniCS with sudo apt-get install fenics and installing Firedrake
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Hash: SHA1
Hi Justin,
On 14/07/15 09:24, Justin Chang wrote:
Hi everyone,
As the title says, I have an issue regarding all three. Not sure
which mailing to post this to but i figured somebody here may
help.
I was attempting to install Firedrake on my
Hi all,
I am trying to nest to square matrices to form a rectangular one with dims
2n x n (with n the size of the square matrices)
I want the two matrices to have interlaced rows so I passed the following 2
list of indices to MatCreateNest:
[[ 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
Hui :
It is impossible to know what causes the problem from these error messages.
I notice that you use Petsc-3.5.2.
I would suggest
1. update to the latest petsc-3.6;
2. if problem remains, send us your matrices C and B in petsc binary
format, we can investigate. With matrix files, one can test
Hi, does anyone know what is the command line option to disable the following
printout message about KSP convergence?
0: PETSc KSP converged after 1 iterations, reason: 3
0: PETSc KSP converged after 0 iterations, reason: 3
0: PETSc KSP converged after 1 iterations, reason: 3
0: PETSc KSP
Hi Matt,
Doing things to the PC like this has worked for me for a long time. It just
happened to be formerly KSPPREONLY/PCLU. Setting things like GMRES/PCNONE
works as well with no errors, though it converges far too slowly.
The actual preconditioner I am trying to form is one from recent
On Tue, Jul 14, 2015 at 11:37 AM, Sander Land sander.l...@gmail.com wrote:
Hi Matt,
Doing things to the PC like this has worked for me for a long time. It
just happened to be formerly KSPPREONLY/PCLU. Setting things like
GMRES/PCNONE works as well with no errors, though it converges far too
I believe this comes from your code rather than PETSc.
Matt
On Tue, Jul 14, 2015 at 10:55 AM, Jin, Shuangshuang
shuangshuang@pnnl.gov wrote:
Hi, does anyone know what is the command line option to disable the
following printout message about KSP convergence?
0: PETSc KSP
This seems to be a result of some print statement in GridPACK, not PETSc.
Shri
From: Jin, Shuangshuang
shuangshuang@pnnl.govmailto:shuangshuang@pnnl.gov
Date: Tuesday, July 14, 2015 at 10:55 AM
To: petsc-users@mcs.anl.govmailto:petsc-users@mcs.anl.gov
Yes, found it in GridPACK's math module Petsc linear solver part.
Thanks,
Shuangshuang
From: Abhyankar, Shrirang G. [mailto:abhy...@anl.gov]
Sent: Tuesday, July 14, 2015 10:00 AM
To: Jin, Shuangshuang; petsc-users@mcs.anl.gov
Cc: Palmer, Bruce J
Subject: Re: [petsc-users] How to disable KSP
Version should not matter. Do other command line options work? You can also
put
PetscOptionsSetValue(-ksp_view_mat,binary:filename);
in the code just before the call to KSPSolve().
Or run in the debugger and put a break point in KSPSolve and then next/step
through to see why the
Mark Adams mfad...@lbl.gov writes:
Do we have any data with respect to the number of PETSc users? Better yet
number of GAMG users?
Mailing list statistics, downstream software packages, papers, and
commits.
We don't spy on users, so just measure products that are made public.
signature.asc
Alejandro D Otero aot...@fi.uba.ar writes:
Hi all,
I am trying to nest to square matrices to form a rectangular one with dims
2n x n (with n the size of the square matrices)
I want the two matrices to have interlaced rows so I passed the following 2
list of indices to MatCreateNest:
[[ 0
Alejandro D Otero aot...@fi.uba.ar writes:
Hi all, is it posible to build a rectangular matrix that relates two fields
with (posible) different number of DoF per point defining the nonzero
structure from 2 petscsections representing one field each?
There isn't a convenience function, but of
Alejandro D Otero aot...@fi.uba.ar writes:
But when I set the viewer to use VTK_VTU (in this case ASCII just for make
it readable, but the same in native vtk format when read with paraview) I
got:
The ASCII viewer is unrelated I never use it. The VTU
(XML/binary-appended) format writes
On Jul 14, 2015, at 11:37 AM, Sander Land sander.l...@gmail.com wrote:
Hi Matt,
Doing things to the PC like this has worked for me for a long time. It just
happened to be formerly KSPPREONLY/PCLU. Setting things like GMRES/PCNONE
works as well with no errors, though it converges far
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