On Wed, Oct 1, 2014 at 3:51 AM, Chris Richardson ch...@bpi.cam.ac.uk
wrote:
I have just run into this error after pulling the master branch of petsc,
when using the ML preconditioner in FEniCS.
It looks like a type error, but I guess FEniCS uses PETScInt, so should be
safe?
PETSC ERROR:
On 01/10/2014 11:33, Matthew Knepley wrote:
On Wed, Oct 1, 2014 at 3:51 AM, Chris Richardson ch...@bpi.cam.ac.uk
wrote:
I have just run into this error after pulling the master branch of
petsc, when using the ML preconditioner in FEniCS.
It looks like a type error, but I guess FEniCS uses
Filippo Leonardi filippo.leona...@sam.math.ethz.ch writes:
I am actually having hard time figuring out where I am spending my time.
Reading the report I am spending time on KSPSolve and PCApply (e+02). Since
the number of those operations is well under control. I guess is some
On Wednesday 01 October 2014 07:23:03 Jed Brown wrote:
Filippo Leonardi filippo.leona...@sam.math.ethz.ch writes:
I am actually having hard time figuring out where I am spending my time.
Reading the report I am spending time on KSPSolve and PCApply (e+02).
Since
the number of those
Recommend running under valgrind.
http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
On Oct 1, 2014, at 7:03 AM, Chris Richardson ch...@bpi.cam.ac.uk wrote:
On 01/10/2014 11:33, Matthew Knepley wrote:
On Wed, Oct 1, 2014 at 3:51 AM, Chris Richardson ch...@bpi.cam.ac.uk
wrote:
On Wed, Oct 1, 2014 at 9:32 AM, Barry Smith bsm...@mcs.anl.gov wrote:
Recommend running under valgrind.
http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
Barry, it looks like this commit introduced it
Hello everyone,
Could you please point me to examples of using automatic differentiation
for Jacobian calculation in PETSc? Chapter 9 of the manual briefly talked
about adifor, but seems not quite complete.
Thank you.
Xiangdong
Sorry that functionality is no longer in PETSc.
On Oct 1, 2014, at 2:51 PM, Xiangdong epsco...@gmail.com wrote:
Hello everyone,
Could you please point me to examples of using automatic differentiation for
Jacobian calculation in PETSc? Chapter 9 of the manual briefly talked about
Is there any reason that AD is not supported in PETSc? Is it because the
ADIFOR/ADIC library itself?
Thank you.
Xiangdong
On Wed, Oct 1, 2014 at 4:09 PM, Barry Smith bsm...@mcs.anl.gov wrote:
Sorry that functionality is no longer in PETSc.
On Oct 1, 2014, at 2:51 PM, Xiangdong
Never guess or rely on possible wrong documentation or other peoples responses
-ksp_view or KSPView(ksp,0);
Barry
On Oct 1, 2014, at 3:06 PM, Saurabh Chawdhary chaw0...@umn.edu wrote:
I understand that we can chose on of many solvers from KSPType form here. But
if do not set any
Saurabh Chawdhary chaw0...@umn.edu writes:
I understand that we can chose on of many solvers from KSPType form here
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPType.html.
But if do not set any option to the type which one does it chose by
default?
GMRES
I could
On Oct 1, 2014, at 3:16 PM, Jed Brown j...@jedbrown.org wrote:
Xiangdong epsco...@gmail.com writes:
Is there any reason that AD is not supported in PETSc? Is it because the
ADIFOR/ADIC library itself?
Those libraries are not maintained and have license problems. You're
welcome to use
Thanks a lot guys. I also did -ksp_view and saw it was GMRES.
___
KSP Object: 32 MPI processes
type: gmres
GMRES: restart=30, using Classical (unmodified) Gram-Schmidt
Orthogonalization with no iterative refinement
GMRES: happy breakdown tolerance 1e-30
HI Xiangdong
We have use the Tapenade AD package to compute sparse matrix jacobians for
CFD problems. We use the result from the AD to populate a PETSc sparse
matrix and then use PETSc to solve the resulting linear system.
Hope that helps.
Gaetan
On Wed, Oct 1, 2014 at 4:23 PM, Barry Smith
Thanks.
Note that us removing the “simple minded” AD stuff from PETSc doesn’t mean
we think AD is a bad idea. It can be an effective way to generate Jacobians.
Barry
On Oct 1, 2014, at 4:09 PM, Gaetan Kenway gaet...@gmail.com wrote:
HI Xiangdong
We have use the Tapenade AD
Randy,
Thanks for the report. I am not sure why we use the d.. version of any of
those functions. I have eliminated them in the branch barry/remove-dreal and
merged that to next. If all the testing looks good on it we will put it into
maint (the next patch) and master.
Barry
On Sep
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