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ectors to define the residual.
Maybe it would be better to make a little container that was basically just
a struct, but masqueraded as a TS.
> However, having a multilevel time integration scheme outside of FAS
> accessible to FAS to accelerate solution might be an interesting project;
> are there references? Would this look like grid sequencing + FAS with the
> grid sequence solutions moved forward in time?
>
Hmm, I haven't seen anything really like that, but note that the stability
threshold for explicit methods is larger on coarse levels.
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..
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ers take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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;>>> matlab.
>>>>
>>>> Attached you see figure plotted as:
>>>> imagesc(log10(abs(C-Cm)))
>>>>
>>>> Where Cm -- product computed in matlab.
>>>>
>>>> The pattern and amplitude vary depending on the
>>>> number of cores I use. This picture is obtained
>>>> for 48 cores (I've tried 12, 64 cores as well).
>>>>
>>>> Where should I look for possible explanation?
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Alexander
>>>
>>>
>>
>>
>> --
>> Regards,
>> Alexander
>>
>>
>
>
> --
> Regards,
> Alexander
>
>
>
--
Regards,
Alexander
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On Tue, 7 Feb 2012, Barry Smith wrote:
>
> On Feb 7, 2012, at 9:09 PM, Sean Farley wrote:
>
> > I'm sure Jed (or Matt in his prime) could have run over to IIT and
> > restarted the machine in less time than this :-)
> >
> > Sure, and like everybody else they would have had to wait outside unti
On Feb 8, 2012, at 6:43 AM, Satish Balay wrote:
> On Tue, 7 Feb 2012, Barry Smith wrote:
>
>>
>> On Feb 7, 2012, at 9:09 PM, Sean Farley wrote:
>>
>>> I'm sure Jed (or Matt in his prime) could have run over to IIT and
>>> restarted the machine in less time than this :-)
>>>
>>> Sure, and lik
On Wed, 8 Feb 2012, Barry Smith wrote:
> >> Besides who the heck set up the machine so it cannot be started
> >> remotely? Should have used an Apple machine :-)
> >
> >
> > It was a human error [when you tell something to shutdown - it should not
> > automatically restart].
> >
> > yeah -
ys to the new site.
> >
> > For now - I've removed petsc-dev and BuildSystem from petsc.cs.iit -
> > and will plan a phased shutdown of the machine - as soon as you can
> > find new home for all repos.
> >
> > Satish
>
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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On Feb 8, 2012, at 9:06 AM, Matthew Knepley wrote:
> On Wed, Feb 8, 2012 at 7:54 AM, Barry Smith wrote:
>
> On Feb 8, 2012, at 6:43 AM, Satish Balay wrote:
>
> > On Tue, 7 Feb 2012, Barry Smith wrote:
> >
> >>
> >> On Feb 7, 2012, at 9:09 PM, Sean Farley wrote:
> >>
> >>> I'm sure Jed (or Matt
and will plan a phased shutdown of the machine - as soon as you can
> > > find new home for all repos.
> > >
> > > Satish
> >
> >
> >
> >
> > --
> > What most experimenters take for granted before they begin their
> experiments is infinitely more interesting than any results to which their
> experiments lead.
> > -- Norbert Wiener
>
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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sc binary format for
>>>>> investigation?
>>>>>
>>>>> Hong
>>>>>
>>>>> On Mon, Feb 6, 2012 at 5:55 AM, Alexander Grayver <
>>>>> agrayver at gfz-potsdam.de> wrote:
>>>>>
>>>>>> Dear PETSc team,
>>>>>>
>>>>>> I try to use:
>>>>>> call
>>>>>> MatMatMult(A,B,MAT_INITIAL_MATRIX,PETSC_DEFAULT_DOUBLE_PRECISION,C,ierr);CHKERRQ(ierr)
>>>>>>
>>>>>> Where both A and B are rectangular, but A is sparse and B is dense.
>>>>>> Both are double complex and distributed.
>>>>>> The product PETSc gives me contains some errors in some part of the
>>>>>> matrix.
>>>>>> I output A, B and C then computed product in matlab.
>>>>>>
>>>>>> Attached you see figure plotted as:
>>>>>> imagesc(log10(abs(C-Cm)))
>>>>>>
>>>>>> Where Cm -- product computed in matlab.
>>>>>>
>>>>>> The pattern and amplitude vary depending on the number of cores I
>>>>>> use. This picture is obtained for 48 cores (I've tried 12, 64 cores as
>>>>>> well).
>>>>>>
>>>>>> Where should I look for possible explanation?
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>> Alexander
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Alexander
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Alexander
>>>
>>>
>>
>
>
> --
> Regards,
> Alexander
>
>
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hen fork the repos you want into
your own account, like so:
https://bitbucket.org/seanfarley/petsc-dev
The nice thing about this is that you can tell where it was forked from:
"(fork of petsc / petsc-dev)"
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;> is sparse and B is dense. Both are double
>>>>> complex and distributed.
>>>>> The product PETSc gives me contains some
>>>>> errors in some part of the matrix.
>>>>> I output A, B and C then computed product
>>>>> in matlab.
>>>>>
>>>>> Attached you see figure plotted as:
>>>>> imagesc(log10(abs(C-Cm)))
>>>>>
>>>>> Where Cm -- product computed in matlab.
>>>>>
>>>>> The pattern and amplitude vary depending
>>>>> on the number of cores I use. This picture
>>>>> is obtained for 48 cores (I've tried 12,
>>>>> 64 cores as well).
>>>>>
>>>>> Where should I look for possible explanation?
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Alexander
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Alexander
>>>
>>>
>>
>>
>> --
>> Regards,
>> Alexander
>>
>>
>>
>
>
> --
> Regards,
> Alexander
>
>
--
Regards,
Alexander
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ts lead.
-- Norbert Wiener
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On Feb 8, 2012, at 11:11 AM, Matthew Knepley wrote:
> On Wed, Feb 8, 2012 at 10:54 AM, Sean Farley wrote:
> There is only a 1-level hierarchy based on a top level account. Sean created
> 'petsc' for our stuff. We can create many, so that
> we have 'petsc-release', 'petsc-private', etc. if we wa
onfusing to have them all like so:
petsc/petsc-3.1
petsc/petsc-dev
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On Feb 8, 2012, at 10:44 AM, Matthew Knepley wrote:
> On Wed, Feb 8, 2012 at 9:39 AM, Barry Smith wrote:
>
>
> and have a hierarchy of managers of the repositories
>
> I don't know why we need a hierarchy of managers, but we can have individual
> managers with admin priv.
Generally you
ed...
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ant
to, just create the account: petsc-release(s) then the URL would be
http://bitbucket.org/petsc-release/petsc-3.1
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2
>>>>>> +0100
>>>>>>
>>>>>>
>>>>>> On 06.02.2012 17:13, Hong Zhang wrote:
>>>>>>
>>>>>> MatMatMult() in petsc is not well-tested for complex - could be
>>>>>> buggy.
>>>>>> Can you send us the matrices A and B in petsc binary format for
>>>>>> investigation?
>>>>>>
>>>>>> Hong
>>>>>>
>>>>>> On Mon, Feb 6, 2012 at 5:55 AM, Alexander Grayver <
>>>>>> agrayver at gfz-potsdam.de> wrote:
>>>>>>
>>>>>>> Dear PETSc team,
>>>>>>>
>>>>>>> I try to use:
>>>>>>> call
>>>>>>> MatMatMult(A,B,MAT_INITIAL_MATRIX,PETSC_DEFAULT_DOUBLE_PRECISION,C,ierr);CHKERRQ(ierr)
>>>>>>>
>>>>>>> Where both A and B are rectangular, but A is sparse and B is dense.
>>>>>>> Both are double complex and distributed.
>>>>>>> The product PETSc gives me contains some errors in some part of the
>>>>>>> matrix.
>>>>>>> I output A, B and C then computed product in matlab.
>>>>>>>
>>>>>>> Attached you see figure plotted as:
>>>>>>> imagesc(log10(abs(C-Cm)))
>>>>>>>
>>>>>>> Where Cm -- product computed in matlab.
>>>>>>>
>>>>>>> The pattern and amplitude vary depending on the number of cores I
>>>>>>> use. This picture is obtained for 48 cores (I've tried 12, 64 cores as
>>>>>>> well).
>>>>>>>
>>>>>>> Where should I look for possible explanation?
>>>>>>>
>>>>>>> --
>>>>>>> Regards,
>>>>>>> Alexander
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>> Alexander
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Alexander
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>
>>
>>
>> --
>> Regards,
>> Alexander
>>
>>
>
>
> --
> Regards,
> Alexander
>
>
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ke for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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or all taged changesets.
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Dear PETSc team,
>>>>>>
>>>>>> I try to use:
>>>>>> call
>>>>>>
>>>>>> MatMatMult(A,B,MAT_INITIAL_MATRIX,PETSC_DEFAULT_DOUBLE_PRECISION,C,ierr);CHKERRQ(ierr)
>>>>>>
>>>>>> Where both A and B are rectangular,
>>>>>> but A is sparse and B is dense. Both
>>>>>> are double complex and distributed.
>>>>>> The product PETSc gives me contains
>>>>>> some errors in some part of the matrix.
>>>>>> I output A, B and C then computed
>>>>>> product in matlab.
>>>>>>
>>>>>> Attached you see figure plotted as:
>>>>>> imagesc(log10(abs(C-Cm)))
>>>>>>
>>>>>> Where Cm -- product computed in matlab.
>>>>>>
>>>>>> The pattern and amplitude vary
>>>>>> depending on the number of cores I
>>>>>> use. This picture is obtained for 48
>>>>>> cores (I've tried 12, 64 cores as well).
>>>>>>
>>>>>> Where should I look for possible
>>>>>> explanation?
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>> Alexander
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Alexander
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Alexander
>>>
>>>
>>>
>>
>>
>> --
>> Regards,
>> Alexander
>>
>>
>
>
> --
> Regards,
> Alexander
>
>
--
Regards,
Alexander
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t;> Can you send us the matrices A and B in
>>>>>>> petsc binary format for investigation?
>>>>>>>
>>>>>>> Hong
>>>>>>>
>>>>>>> On Mon, Feb 6, 2012 at 5:55 AM,
>>>>>>> Alexander Grayver
>>>>>>> >>>>>> <mailto:agrayver at gfz-potsdam.de>> wrote:
>>>>>>>
>>>>>>> Dear PETSc team,
>>>>>>>
>>>>>>> I try to use:
>>>>>>> call
>>>>>>>
>>>>>>> MatMatMult(A,B,MAT_INITIAL_MATRIX,PETSC_DEFAULT_DOUBLE_PRECISION,C,ierr);CHKERRQ(ierr)
>>>>>>>
>>>>>>> Where both A and B are rectangular,
>>>>>>> but A is sparse and B is dense. Both
>>>>>>> are double complex and distributed.
>>>>>>> The product PETSc gives me contains
>>>>>>> some errors in some part of the matrix.
>>>>>>> I output A, B and C then computed
>>>>>>> product in matlab.
>>>>>>>
>>>>>>> Attached you see figure plotted as:
>>>>>>> imagesc(log10(abs(C-Cm)))
>>>>>>>
>>>>>>> Where Cm -- product computed in matlab.
>>>>>>>
>>>>>>> The pattern and amplitude vary
>>>>>>> depending on the number of cores I
>>>>>>> use. This picture is obtained for 48
>>>>>>> cores (I've tried 12, 64 cores as well).
>>>>>>>
>>>>>>> Where should I look for possible
>>>>>>> explanation?
>>>>>>>
>>>>>>> --
>>>>>>> Regards,
>>>>>>> Alexander
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>> Alexander
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Alexander
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Alexander
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Alexander
>>>
>>>
>>
>>
>> --
>> Regards,
>> Alexander
>>
>>
>
>
> --
> Regards,
> Alexander
--
Regards,
Alexander
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-
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On Feb 8, 2012, at 2:55 PM, Jed Brown wrote:
> On Wed, Feb 8, 2012 at 21:05, Matthew Knepley wrote:
> I would be alright with any grouping strategy, be it
> directories, tags, etc. I think this is orthogonal to Mercurial.
>
> All I would want is tags. Hierarchical directory trees are so 1970s.
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