[petsc-users] Question about PetscViewerHDF5SetTimestep usage

[Sajid Ali]

This error persists after updating petsc to 3.10.3.

On Fri, Dec 14, 2018 at 4:17 PM Matthew Knepley <knepley at gmail.com> wrote:

> I think this was the last commit
> (5eab803f81ff61e3e81a6486d2410623a017e36d) in the branch,
> but just using the current master should work.
>
>   Matt
>
> On Fri, Dec 14, 2018 at 4:04 PM Sajid Ali <
> sajidsyed2021 at u.northwestern.edu> wrote:
>
>> Hi Matthew,
>>
>> Thanks for the info. Could you give a specific commit that I should
>> rebuild PETSc with ? I’m currently building with commit=83593104eb216a023c00ab8a3f9897d55e531412'.
>>
>>
>> On Fri, Dec 14, 2018 at 12:56 PM Matthew Knepley <knepley at gmail.com>
>> wrote:
>>
>>> I believe this is now fixed in 'master', It was a bug in HDF5 attribute
>>> creation.
>>>
>>>   Thanks,
>>>
>>>     Matt
>>>
>>> On Fri, Dec 14, 2018 at 1:16 PM Sajid Ali via petsc-users <
>>> petsc-users at mcs.anl.gov> wrote:
>>>
>>>> Hi,
>>>>
>>>> I have a question about PetscViewerHDF5SetTimestep usage.
>>>>
>>>> I have tried the following minimal example which tries to write a
>>>> vector twice to an hdf5 file and it fails with the error message shown
>>>> below.
>>>>
>>>> Example : https://pastebin.com/cAeZsUgA
>>>>
>>>> Error :
>>>>
>>>> writing vector in hdf5 to vector.dat ...
>>>> HDF5-DIAG: Error detected in HDF5 (1.10.4) MPI-process 0:
>>>>   #000: H5A.c line 279 in H5Acreate2(): unable to create attribute
>>>>     major: Attribute
>>>>     minor: Unable to initialize object
>>>>   #001: H5Aint.c line 323 in H5A__create(): unable to create attribute
>>>>     major: Attribute
>>>>     minor: Unable to create file
>>>>   #002: H5Aint.c line 167 in H5A__create_common(): attribute already
>>>> exists
>>>>     major: Attribute
>>>>     minor: Object already exists
>>>> [0]PETSC ERROR: --------------------- Error Message
>>>> --------------------------------------------------------------
>>>> [0]PETSC ERROR: Error in external library
>>>> [0]PETSC ERROR: Error in HDF5 call H5Acreate2() Status -1
>>>> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
>>>> for trouble shooting.
>>>> [0]PETSC ERROR: Petsc Release Version 3.10.2, unknown
>>>>
>>>>
>>>> The error is related to the second VecView after setting the timestep
>>>> to 1. Am i doing something wrong ?
>>>>
>>>> Thank You,
>>>> Sajid Ali
>>>> Applied Physics
>>>> Northwestern University
>>>>
>>>
>>>
>>> --
>>> 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
>>>
>>> https://www.cse.buffalo.edu/~knepley/
>>> <http://www.cse.buffalo.edu/~knepley/>
>>>
>>
>>
>> --
>> Sajid Ali
>> Applied Physics
>> Northwestern University
>>
>
>
> --
> 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
>
> https://www.cse.buffalo.edu/~knepley/
> <http://www.cse.buffalo.edu/~knepley/>
>


-- 
Sajid Ali
Applied Physics
Northwestern University
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