[petsc-dev] [petsc-maint #47677] petsc viewer question

[Barry Smith]

  We should change the PETSc binary viewer  to create an ASCII viewer for the info file instead of a raw FILE * like we have currently. Then  PetscViewerBinaryGetInfoPointer() would be changed to PetscViewerBinaryGetInfoViewer() and we and users would be able to access it as a viewer instead of with raw printf and scanf. Then we would need the ability to open and read simple files with the ASCII viewer.

   Barry



On Jun 13, 2010, at 12:47 PM, Matthew Knepley wrote:

> Not right now.
> 
>   Matt
> 
> On Sun, Jun 13, 2010 at 12:17 PM, Alan H. Glasser <ahg5 at u.washington.edu>wrote:
> 
>> Matt,
>> 
>> Is there any documentation for the *.info file?
>> 
>> Alan
>> 
>> On Jun 13, 2010, at 9:57 AM, Matthew Knepley wrote:
>> 
>>> On Sun, Jun 13, 2010 at 11:55 AM, Alan H. Glasser <ahg5 at u.washington.edu>
>> wrote:
>>> Petsc Folks,
>>> 
>>> When I use PetscViewerBinaryOpen to create a new file, called filename,
>> for use with VecView and MatView, it also creates a file called
>> filename.info, with 0 bytes.  What is the purpose of that file?  Is it
>> something I could write to with auxiliary information?
>>> 
>>> Yes, it stores things like the blocksize that we could use when
>> reloading.
>>> 
>>>   Matt
>>> 
>>> Alan
>>> ==================================================
>>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>>> PSI Center, Department of Aeronautics and Astronautics
>>> AERB 241E, University of Washington
>>> Box 352250, Seattle, WA 98195-2250
>>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>>> 
>>> 
>>> 
>>> Petsc Folks,
>>> 
>>> When I use PetscViewerBinaryOpen to create a new file, called filename,
>> for use with VecView and MatView, it also creates a file called
>> filename.info, with 0 bytes.  What is the purpose of that file?  Is it
>> something I could write to with auxiliary information?
>>> 
>>> Alan
>>> ==================================================
>>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>>> PSI Center, Department of Aeronautics and Astronautics
>>> AERB 241E, University of Washington
>>> Box 352250, Seattle, WA 98195-2250
>>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>>> 
>>> 
>>> 
>>> 
>>> 
>>> --
>>> 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
>> 
>> ==================================================
>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>> PSI Center, Department of Aeronautics and Astronautics
>> AERB 241E, University of Washington
>> Box 352250, Seattle, WA 98195-2250
>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>> 
>> 
>> 
>> Matt,
>> 
>> Is there any documentation for the *.info file?
>> 
>> Alan
>> 
>> On Jun 13, 2010, at 9:57 AM, Matthew Knepley wrote:
>> 
>> On Sun, Jun 13, 2010 at 11:55 AM, Alan H. Glasser <ahg5 at u.washington.edu>wrote:
>> 
>>> Petsc Folks,
>>> 
>>> When I use PetscViewerBinaryOpen to create a new file, called filename,
>>> for use with VecView and MatView, it also creates a file called
>>> filename.info, with 0 bytes.  What is the purpose of that file?  Is it
>>> something I could write to with auxiliary information?
>>> 
>> 
>> Yes, it stores things like the blocksize that we could use when reloading.
>> 
>>   Matt
>> 
>> 
>>> Alan
>>> ==================================================
>>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>>> PSI Center, Department of Aeronautics and Astronautics
>>> AERB 241E, University of Washington
>>> Box 352250, Seattle, WA 98195-2250
>>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>>> 
>>> 
>>> 
>>> Petsc Folks,
>>> 
>>> When I use PetscViewerBinaryOpen to create a new file, called filename,
>>> for use with VecView and MatView, it also creates a file called
>>> filename.info, with 0 bytes.  What is the purpose of that file?  Is it
>>> something I could write to with auxiliary information?
>>> 
>>> Alan
>>>     ==================================================
>>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>>> PSI Center, Department of Aeronautics and Astronautics
>>> AERB 241E, University of Washington
>>> Box 352250, Seattle, WA 98195-2250
>>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>>> 
>>> 
>>> 
>> 
>> 
>> --
>> 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
>> 
>> 
>> ==================================================
>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>> PSI Center, Department of Aeronautics and Astronautics
>> AERB 241E, University of Washington
>> Box 352250, Seattle, WA 98195-2250
>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>> 
>> 
>> 
> 
> 
> -- 
> 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
> 
> Not right now.
> 
>    Matt
> 
> On Sun, Jun 13, 2010 at 12:17 PM, Alan H. Glasser <ahg5 at u.washington.edu> wrote:
> Matt,
> 
> Is there any documentation for the *.info file?
> 
> Alan
> 
> On Jun 13, 2010, at 9:57 AM, Matthew Knepley wrote:
> 
> > On Sun, Jun 13, 2010 at 11:55 AM, Alan H. Glasser <ahg5 at u.washington.edu> wrote:
> > Petsc Folks,
> >
> > When I use PetscViewerBinaryOpen to create a new file, called filename, for use with VecView and MatView, it also creates a file called filename.info, with 0 bytes.  What is the purpose of that file?  Is it something I could write to with auxiliary information?
> >
> > Yes, it stores things like the blocksize that we could use when reloading.
> >
> >    Matt
> >
> > Alan
> > ==================================================
> > Dr. Alan H. Glasser , Senior Principal Research Scientist
> > PSI Center, Department of Aeronautics and Astronautics
> > AERB 241E, University of Washington
> > Box 352250, Seattle, WA 98195-2250
> > Phone: 505-690-1489, Email: ahg5 at u.washington.edu
> >
> >
> >
> > Petsc Folks,
> >
> > When I use PetscViewerBinaryOpen to create a new file, called filename, for use with VecView and MatView, it also creates a file called filename.info, with 0 bytes.  What is the purpose of that file?  Is it something I could write to with auxiliary information?
> >
> > Alan
> > ==================================================
> > Dr. Alan H. Glasser , Senior Principal Research Scientist
> > PSI Center, Department of Aeronautics and Astronautics
> > AERB 241E, University of Washington
> > Box 352250, Seattle, WA 98195-2250
> > Phone: 505-690-1489, Email: ahg5 at u.washington.edu
> >
> >
> >
> >
> >
> > --
> > 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
> 
> ==================================================
> Dr. Alan H. Glasser , Senior Principal Research Scientist
> PSI Center, Department of Aeronautics and Astronautics
> AERB 241E, University of Washington
> Box 352250, Seattle, WA 98195-2250
> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
> 
> 
> 
> Matt,
> 
> Is there any documentation for the *.info file?
> 
> Alan
> 
> On Jun 13, 2010, at 9:57 AM, Matthew Knepley wrote:
> 
>> On Sun, Jun 13, 2010 at 11:55 AM, Alan H. Glasser <ahg5 at u.washington.edu> wrote:
>> Petsc Folks,
>> 
>> When I use PetscViewerBinaryOpen to create a new file, called filename, for use with VecView and MatView, it also creates a file called filename.info, with 0 bytes.  What is the purpose of that file?  Is it something I could write to with auxiliary information?
>> 
>> Yes, it stores things like the blocksize that we could use when reloading.
>> 
>>    Matt
>>  
>> Alan
>> ==================================================
>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>> PSI Center, Department of Aeronautics and Astronautics
>> AERB 241E, University of Washington
>> Box 352250, Seattle, WA 98195-2250
>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>> 
>> 
>> 
>> Petsc Folks,
>> 
>> When I use PetscViewerBinaryOpen to create a new file, called filename, for use with VecView and MatView, it also creates a file called filename.info, with 0 bytes.  What is the purpose of that file?  Is it something I could write to with auxiliary information?
>> 
>> Alan
>> ==================================================
>> Dr. Alan H. Glasser , Senior Principal Research Scientist
>> PSI Center, Department of Aeronautics and Astronautics
>> AERB 241E, University of Washington
>> Box 352250, Seattle, WA 98195-2250
>> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
>> 
>> 
>> 
>> 
>> 
>> -- 
>> 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
> 
> ==================================================
> Dr. Alan H. Glasser , Senior Principal Research Scientist
> PSI Center, Department of Aeronautics and Astronautics
> AERB 241E, University of Washington
> Box 352250, Seattle, WA 98195-2250
> Phone: 505-690-1489, Email: ahg5 at u.washington.edu
> 
> 
> 
> 
> 
> -- 
> 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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