Hi,
While doing multigrid it is possible to explicitly set restriction and
prolongation/interpolation operators in PETSC using PCMGSetRestriction and
PCMGSetInterpolation. In many cases, the restriction (R) and prolongation (P)
operators are simply the transpose of each other (R=P’).
Yet,
Boris Kaus k...@uni-mainz.de writes:
While doing multigrid it is possible to explicitly set restriction and
prolongation/interpolation operators in PETSC using PCMGSetRestriction
and PCMGSetInterpolation. In many cases, the restriction (R) and
prolongation (P) operators are simply the
I made a second check on initialization of PETSc, and found that the
initialization does not take effect. The codes are as follows.
call PetscInitialize(Petsc_Null_Character,ierrcode)
call MPI_Comm_rank(Petsc_Comm_World,rank,ierrcode)
call
Danyang Su danyang...@gmail.com writes:
I made a second check on initialization of PETSc, and found that the
initialization does not take effect. The codes are as follows.
call PetscInitialize(Petsc_Null_Character,ierrcode)
call
Thanks Jed,
I'll give it a try and let you know. Might take a bit though.
Boris
On Jan 30, 2014, at 17:45, Jed Brown j...@jedbrown.org wrote:
Boris Kaus k...@uni-mainz.de writes:
While doing multigrid it is possible to explicitly set restriction and
prolongation/interpolation
Hello,
I tried to use DMPlexCreateFromDAG function to create a DM structure from a
hybrid mesh.
To understand how it works, I look at ex5.c file.
Unfortunately, there are some things that I do not understand.
1. Why does coneSize lists faces of cells first, then faces of vertices and
finally
On Thu, Jan 30, 2014 at 12:19 PM, Cedric Doucet cedric.dou...@inria.frwrote:
Hello,
I tried to use DMPlexCreateFromDAG function to create a DM structure from
a hybrid mesh.
To understand how it works, I look at ex5.c file.
Unfortunately, there are some things that I do not understand.
1.
On 30/01/2014 9:30 AM, Jed Brown wrote:
Danyang Su danyang...@gmail.com writes:
I made a second check on initialization of PETSc, and found that the
initialization does not take effect. The codes are as follows.
call PetscInitialize(Petsc_Null_Character,ierrcode)
call
On 30/01/14 17:45, Jed Brown wrote:
Boris Kaus k...@uni-mainz.de writes:
While doing multigrid it is possible to explicitly set restriction and
prolongation/interpolation operators in PETSC using PCMGSetRestriction
and PCMGSetInterpolation. In many cases, the restriction (R) and
Torquil Macdonald Sørensen torq...@gmail.com writes:
This question was similar to my recent unanswered one:
http://lists.mcs.anl.gov/pipermail/petsc-users/2014-January/020382.html
That's why I Cc'd you.
I just tried jed/pcmg-galerkin-rap, and it seems to work fineI verified
that the coarse
On 30/01/14 22:05, Jed Brown wrote:
Torquil Macdonald Sørensen torq...@gmail.com writes:
This question was similar to my recent unanswered one:
http://lists.mcs.anl.gov/pipermail/petsc-users/2014-January/020382.html
That's why I Cc'd you.
Thanks, I didn't notice that. I am actually very
Hi guys,
I'd like to be able to post-process the values reported by -log_summary. Is
there any programmatic way to extract the data and save it manually to a
file?
If not, is there any parser that go over stdout dump and extract the info?
Mohammad
Try running prometheus with -out_verbose 2
and gamg with -pc_gamg_verbose 2
and send me the output.
Mark
On Thu, Jan 30, 2014 at 4:40 AM, Thomas Gross tgr...@ilsb.tuwien.ac.atwrote:
Please find enclosed the output for GAMG using -mg_levels_ksp_max_it 1:
Prometheus:
-ksp_type cg -pc_type
And is this just a simple cube problem in elasticity as it looks like from
your input file name?
On Thu, Jan 30, 2014 at 4:40 AM, Thomas Gross tgr...@ilsb.tuwien.ac.atwrote:
Please find enclosed the output for GAMG using -mg_levels_ksp_max_it 1:
Prometheus:
-ksp_type cg -pc_type prometheus
Mohammad Mirzadeh mirza...@gmail.com writes:
Hi guys,
I'd like to be able to post-process the values reported by -log_summary. Is
there any programmatic way to extract the data and save it manually to a
file?
If not, is there any parser that go over stdout dump and extract the info?
I
Thanks Jed. This looks interesting.
On Thu, Jan 30, 2014 at 2:45 PM, Jed Brown j...@jedbrown.org wrote:
Mohammad Mirzadeh mirza...@gmail.com writes:
Hi guys,
I'd like to be able to post-process the values reported by -log_summary.
Is
there any programmatic way to extract the data and
We're seeing a bit lower performance in MatMult with GAMG, perhaps
because we are not using block formats specialized for elasticity.
The block info seems to be there.
Mark, what else is different?
* Prometheus seems to be coarsening slower and taking nearly twice the
iterations.
*
Mark Adams mfad...@lbl.gov writes:
We're seeing a bit lower performance in MatMult with GAMG, perhaps
because we are not using block formats specialized for elasticity.
The block info seems to be there.
I meant that GAMG isn't using BAIJ, but Prometheus is. That affects
kernel efficiency.
master now has a viewer that dumps the raw data in Python, then you can write
python scripts to process it any way you want. -log_view
ascii:filename:ascii_info_detail sample python script in
bin/pythonscripts/petsclogformat.py
I personally think that parsing the output of -log_summary
I meant that GAMG isn't using BAIJ, but Prometheus is. That affects
kernel efficiency.
Ah yes, that must be it.
Hi All,
When configure petsc with msmpi
./configure --with-cc='win32fe cl' --with-fc='win32fe ifort'
--with-cxx='win32fe cl' --download-f-blas-lapack --with-threadco
mm --with-openmp --with-mpi-include=/cygdrive/c/Program Files/Microsoft
HPC Pack 2008 R2/Inc --with-mpi-lib=/cygdrive/c/Prog
On Thu, Jan 30, 2014 at 5:56 PM, Barry Smith bsm...@mcs.anl.gov wrote:
master now has a viewer that dumps the raw data in Python, then you can
write python scripts to process it any way you want. -log_view
ascii:filename:ascii_info_detail sample python script in
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