Mark F. Adams mfad...@lbl.gov writes:
Jed, where you going to give me a PetscObjectGetId?
It is in 'jed/object-id', which is now in 'next'.
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To fill others in on the situation here; this was regarding a variational
inequality example, that uses reduced space method for which routines are
defined in src/snes/impls/vi/rs/virs.c. When MatGetSubMatrix was called to
extract rows and columns of the original matrix corresponding to the
On Thu, Sep 19, 2013 at 1:28 PM, Jungho Lee ju...@mcs.anl.gov wrote:
To fill others in on the situation here; this was regarding a variational
inequality example, that uses reduced space method for which routines are
defined in src/snes/impls/vi/rs/virs.c. When MatGetSubMatrix was called to
On Sep 19, 2013, at 3:17 PM, Dmitry Karpeyev dkarp...@gmail.com wrote:
On Thu, Sep 19, 2013 at 1:28 PM, Jungho Lee ju...@mcs.anl.gov wrote:
To fill others in on the situation here; this was regarding a variational
inequality example, that uses reduced space method for which routines
Barry Smith bsm...@mcs.anl.gov writes:
That is what it is doing and apparently it doesn't result in a good
preconditioner; I don't know why off hand. One thing is it no
longer knows about the block structure.
How is the near null space being specified?
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On Sep 19, 2013, at 3:53 PM, Barry Smith bsm...@mcs.anl.gov wrote:
It is essentially 3 Laplacians
If you mean literally 3 scalar laplacians packed in one matrix for some reason
then the one constant vector is fine. Is this a block diagonal matrix with 3
big blocks, if you order it
It is essentially 3 Laplacians so I think the default null space of 3
constant vectors is fine. The problem is without the block information
presumably GAMG is using only a single constant vector over all variables? So
maybe we need to construct a 3 vector null space which just marks in
Barry Smith bsm...@mcs.anl.gov writes:
It is essentially 3 Laplacians so I think the default null space of
3 constant vectors is fine. The problem is without the block
information presumably GAMG is using only a single constant vector
over all variables? So maybe we need to
On Thu, Sep 19, 2013 at 2:53 PM, Barry Smith bsm...@mcs.anl.gov wrote:
It is essentially 3 Laplacians so I think the default null space of 3
constant vectors is fine. The problem is without the block information
presumably GAMG is using only a single constant vector over all variables?
Bitbucket added support to restrict push access based on branch names
(glob matching). For example, that would allow us to have a smaller
group of people with access to merge to 'maint' or 'master'.
Is this a feature we should start using in petsc.git?
One tangible difference from the current
On Sep 19, 2013, at 4:28 PM, Mark F. Adams mfad...@lbl.gov wrote:
On Sep 19, 2013, at 3:53 PM, Barry Smith bsm...@mcs.anl.gov wrote:
It is essentially 3 Laplacians
If you mean literally 3 scalar laplacians packed in one matrix for some
reason then the one constant vector is fine.
Barry Smith bsm...@mcs.anl.gov writes:
If you mean literally 3 scalar laplacians packed in one matrix for
some reason then the one constant vector is fine.
Really, but (for periodic or N. bc) the null space has three
vectors, you don't need all of them in your near null space?
If the
This sounds like a great idea from the perspective of someone like me, who
would only be pushing to maint/master/next in error at this point. It would
also allow slightly easier access to features which are new/experimental enough
to not be in next yet.
On Sep 19, 2013, at 4:35 PM, Jed Brown
On Sep 19, 2013, at 7:05 PM, Barry Smith bsm...@mcs.anl.gov wrote:
On Sep 19, 2013, at 4:28 PM, Mark F. Adams mfad...@lbl.gov wrote:
On Sep 19, 2013, at 3:53 PM, Barry Smith bsm...@mcs.anl.gov wrote:
It is essentially 3 Laplacians
If you mean literally 3 scalar laplacians packed
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