PetscFOpen with mode "a+"

[(Rebecca) Xuefei YUAN]

Hi,Matt,

Thanks very much and it works in my code then.

Happy New Year!

Rebecca

Quoting Matthew Knepley <knepley at gmail.com>:

> On Wed, Dec 31, 2008 at 2:30 PM, (Rebecca) Xuefei YUAN
> <xy2102 at columbia.edu>wrote:
>
>>
>> I tried PetscViewerFileSetMode and use the "FILE_MODE_APPEND", but it seems
>> that the file has been overwritten,too.
>>
>> I was not able to find any examples in tutorials, is there one using it?
>
>
> Here is an example that appends to a file. It works for me.
>
>    Matt
>
>
>>
>> Thanks a lot!
>>
>>
>>
>> Quoting Matthew Knepley <knepley at gmail.com>:
>>
>>  You use a ViewerCreate() and then
>>>
>>>
>>> http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Viewer/PetscViewerFileSetMode.html
>>>
>>> to set append, and then FileSetName() to open the file.
>>>
>>>  Matt
>>>
>>> On Wed, Dec 31, 2008 at 10:24 AM, (Rebecca) Xuefei YUAN <
>>> xy2102 at columbia.edu
>>>
>>>> wrote:
>>>>
>>>
>>>  Hi,All,
>>>>
>>>> I tried to use PetscFOpen to write the numerical result to a file, and I
>>>> would like to use the mode "a+" to add my result to the existing content
>>>> in
>>>> my file. However, whenever the new result comes out, it will overwrite
>>>> the
>>>> existing content in the file. Is there any problem here?
>>>>
>>>> Thanks a lot!
>>>>
>>>> Rebecca
>>>>
>>>>
>>>>
>>>
>>> --
>>> 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
>>>
>>>
>>
>>
>> --
>> (Rebecca) Xuefei YUAN
>> Department of Applied Physics and Applied Mathematics
>> Columbia University
>> Tel:917-399-8032
>> www.columbia.edu/~xy2102 <http://www.columbia.edu/%7Exy2102>
>>
>>
>
>
> --
> 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
>



-- 
(Rebecca) Xuefei YUAN
Department of Applied Physics and Applied Mathematics
Columbia University
Tel:917-399-8032
www.columbia.edu/~xy2102