Is there any external software I should link at compile time to allow
PETSc to provide log infos?
Also, is there any define in petscconf.h that controls profiling?
Michele
On Mon, 2015-06-08 at 12:48 -0500, Barry Smith wrote:
On Jun 8, 2015, at 12:16 PM, Michele Rosso mro...@uci.edu wrote:
Michele Rosso mro...@uci.edu writes:
Is there any external software I should link at compile time to allow
PETSc to provide log infos?
Also, is there any define in petscconf.h that controls profiling?
There is PETSC_USE_LOG, but that should always be on, in which case
everything is run-time
Thanks for your helpful comments, Jed, Matt, and Mark. They've given me some
things to think about, so I'll work on those then open a new email thread when
I have further questions.
--Matt
--
Matthew Young
Graduate Student
Boston
On Jun 8, 2015, at 12:53 PM, Michele Rosso mro...@uci.edu wrote:
Is there any external software I should link at compile time to allow PETSc
to provide log infos?
No
Also, is there any define in petscconf.h that controls profiling?
Yes, but it would stop anything from being printed,
Jed,
In the petscconf.h I have
#ifndef PETSC_USE_LOG
#define PETSC_USE_LOG 1
#endif
so I guess that is not the problem.
I run ex50: I attached the output. It does prints the summary.
The I guess there is something wrong with my code.
I call mpi_init before petsc_initialize and then I finalize
Young, Matthew, Adam m...@bu.edu writes:
This is a problem from ionospheric plasma physics. The simulation
treats ions via a particle-in-cell method and electrons as an
inertialess fluid, the justification being that ionospheric ions are
10^4 times more massive than electrons. We further
Hi Barry,
I run a small test case like you suggested: this results in no error,
but the problem with log_summary still persists.
Please find attached the output of log_summary.
Thanks,
Michele
On Fri, 2015-06-05 at 21:34 -0500, Barry Smith wrote:
[NID 04001] 2015-06-04 19:07:24 Apid 25022256:
On Mon, Jun 8, 2015 at 4:31 AM, Lawrence Mitchell
lawrence.mitch...@imperial.ac.uk wrote:
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Hi all,
I have a multi-field system where the splits are defined by a DM. I
can use a fieldsplit PC on its own with no trouble, but cannot do so
inside
Hi Jason,
One more question about BLMVM... if it only uses gradient information and
does not require the definitition of a Hessian Matrix, can this method be
applied to solve problems that are nonsymmetric by nature? (e.g.,
advection-diffusion equations). If I had wanted to solve the same
On Sun, Jun 7, 2015 at 9:08 PM, Justin Chang jychan...@gmail.com wrote:
Matt (Knepley),
I see what you're saying and it makes perfect sense. The point of my work
isn't necessarily to compare CG/Jacobi with GAMG. Rather I am trying to
compare both the numerical solution and the computational
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Hi all,
I have a multi-field system where the splits are defined by a DM. I
can use a fieldsplit PC on its own with no trouble, but cannot do so
inside a composite PC. My matrices do not have a blocksize set
(because the data layout doesn't match)
Justin Chang jychan...@gmail.com writes:
Hi Jason,
One more question about BLMVM... if it only uses gradient information and
does not require the definitition of a Hessian Matrix, can this method be
applied to solve problems that are nonsymmetric by nature? (e.g.,
advection-diffusion
On 8 June 2015 at 02:50, Mikhail Khodak mkho...@princeton.edu wrote:
Hello, I am trying to build petsc4py-3.5.1 using Cygwin on 64-bit Windows 7.
I have built PETSc 3.5.4 with shared and dynamic libraries using
mpich2-1.2.1 and successfully ran the installation tests. I am using Python
2.7 and
Jed,
Thank you for your response. I agree completely with all that you said. I
just wonder what would happen if I attempted to use the TAO routines after
forming the Jacobian J and residual r arising from the advection diffusion
equation.
In my current (linear) diffusion framework, i have the
Justin Chang jychan...@gmail.com writes:
Jed,
Thank you for your response. I agree completely with all that you said. I
just wonder what would happen if I attempted to use the TAO routines after
forming the Jacobian J and residual r arising from the advection diffusion
equation.
In my
Ah I see that makes sense. Thank you very much
On Monday, June 8, 2015, Jed Brown j...@jedbrown.org wrote:
Justin Chang jychan...@gmail.com javascript:; writes:
Jed,
Thank you for your response. I agree completely with all that you said. I
just wonder what would happen if I attempted
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