[petsc-users] Problem in Loading Matrix in Examples

[Matthew Knepley]

On Tue, Feb 5, 2019 at 5:45 AM Eda Oktay <eda.oktay at metu.edu.tr> wrote:

> Dear Matt,
>
> Thank you for answering. I didn't recognize that part. But I still can't
> find a matrix called "small" and there are some examples testing with
> "medium". Am I missing something?
>

We don't distribute the test matrices. They are on the FTP site:
http://ftp.mcs.anl.gov/pub/petsc/datafiles/matrices/

   Matt


> Thanks,
>
> Eda
>
> Matthew Knepley <knepley at gmail.com>, 5 Şub 2019 Sal, 13:35 tarihinde şunu
> yazdı:
>
>> On Tue, Feb 5, 2019 at 4:44 AM Eda Oktay via petsc-users <
>> petsc-users at mcs.anl.gov> wrote:
>>
>>> Hi,
>>>
>>> I am new in PETSc and trying to run some examples in MAT file.
>>>
>>> I cannot run the ones that need to load matrix from file. Here are the
>>> examples:
>>>
>>> For ex12 in MAT file:
>>> args: -f0
>>> ${wPETSC_DIR}/share/petsc/datafiles/matrices/ns-real-int32-float64
>>> requires: double !complex !define(PETSC_USE_64BIT_INDICES)
>>>
>>> When I type ./ex11 -f0
>>> home/petsc-3.10.3/share/petsc/datafiles/matrices/ns-real-int32-float64, I
>>> get the following error message:
>>>
>>> [0]PETSC ERROR: --------------------- Error Message
>>> --------------------------------------------------------------
>>> [0]PETSC ERROR: No support for this operation for this object type
>>> [0]PETSC ERROR: This example is for exactly two processes
>>>
>>
>> As it says above, the example is for 2 processes, but you are running it
>> on 1.
>>
>>    Matt
>>
>>
>>> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
>>> for trouble shooting.
>>> [0]PETSC ERROR: Petsc Release Version 3.10.3, Dec, 18, 2018
>>> [0]PETSC ERROR: ./ex11 on a arch-linux2-c-debug named
>>> bb91.wls.metu.edu.tr by edaoktay Tue Feb  5 12:41:49 2019
>>> [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++
>>> --with-fc=gfortran --with-cxx-dialect=C++11 --download-openblas
>>> --download-metis --download-parmetis --download-superlu_dist
>>> --download-slepc --download-mpich
>>> [0]PETSC ERROR: #1 main() line 31 in
>>> /home/edaoktay/petsc-3.10.3/src/mat/examples/tutorials/ex11.c
>>> [0]PETSC ERROR: PETSc Option Table entries:
>>> [0]PETSC ERROR: -f0
>>> home/petsc-3.10.3/share/petsc/datafiles/matrices/ns-real-int32-float64
>>> [0]PETSC ERROR: ----------------End of Error Message -------send entire
>>> error message to petsc-maint at mcs.anl.gov----------
>>> application called MPI_Abort(MPI_COMM_WORLD, 56) - process 0
>>> [unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=56
>>> :
>>> system msg for write_line failure : Bad file descriptor
>>>
>>>
>>> For ex10 in MAT file:
>>> suffix: seqaij
>>> requires: datafilespath double !complex !define(PETSC_USE_64BIT_INDICES)
>>> args: -f ${DATAFILESPATH}/matrices/small -a_mat_type seqaij
>>>
>>> There is not a matrix called small, however during configuration, it
>>> should be tested successfully and there is an output. Also, I get pretty
>>> much the same error here too.
>>>
>>> I believe there is a problem in requirements but I cannot find any
>>> solution.
>>>
>>
>>
>> --
>> 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/>
>>
>

-- 
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/>
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