[petsc-users] Read from file failes

[Elias Goldmann]

Actually the files came with the installation files. I tried ex7 and 
ex14, both giving the same error message while trying to read the 
associated files.

On 29.06.2011 16:38, Matthew Knepley wrote:
> On Wed, Jun 29, 2011 at 2:37 PM, Elias Goldmann
> <goldmann at itp.uni-bremen.de>wrote:
>
>> **
>> Hello,
>>
>> i just did my first steps with SLEPc working my way through the given
>> examples.
>> Apperently i encounter the error message below when i try to read from
>> binary files.
>> If i do understand this<http://lists.mcs.anl.gov/pipermail/petsc-users/2009-October/005223.html>correctly, this could be related to the combination of 64 bit systems and
>> complex binary files. Since i want to solve complex eigenproblems from input
>> files im confused that this causes problems.
>>
> It appears the file is not valid. If you used Matlab to make the binary
> file, this will not work
> because PETSc can only read real numbers from Matlab. However, valid complex
> binary
> files are fine (say from SLEPc or PETSc itself).
>
> I would check the file I am trying to load.
>
>     Matt
>
>
>> Any help available?
>> Thanks,
>> Elias
>>
>>
>> ./ex7 -f1 /home/egoldmann/elias/bfw62a.petsc -f2
>> /home/egoldmann/elias/bfw62b.petsc
>>
>> Generalized eigenproblem stored in file.
>>
>>   Reading COMPLEX matrices from binary files...
>> [0]PETSC ERROR: --------------------- Error Message
>> ------------------------------------
>> [0]PETSC ERROR: Read from file failed!
>> [0]PETSC ERROR: Read past end of file!
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: Petsc Release Version 3.1.0, Patch 8, Thu Mar 17 13:37:48
>> CDT 2011
>> [0]PETSC ERROR: See docs/changes/index.html for recent updates.
>> [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
>> [0]PETSC ERROR: See docs/index.html for manual pages.
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: ./ex7 on a linux-gnu named node5 by egoldmann Wed Jun 29
>> 15:54:06 2011
>> [0]PETSC ERROR: Libraries linked from
>> /home/egoldmann/petsc-3.1-p8/linux-gnu-c-debug/lib
>> [0]PETSC ERROR: Configure run at Wed Jun 29 10:19:42 2011
>> [0]PETSC ERROR: Configure options --with-scalar-type=complex
>> --download-blopex
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: PetscBinaryRead() line 249 in src/sys/fileio/sysio.c
>> [0]PETSC ERROR: MatLoad_SeqAIJ() line 3572 in src/mat/impls/aij/seq/aij.c
>> [0]PETSC ERROR: MatLoad() line 124 in src/mat/utils/matio.c
>> [0]PETSC ERROR: main() line 64 in ex7.c
>> [unset]: aborting job:
>> application called MPI_Abort(MPI_COMM_WORLD, 66) - process 0
>>
>>
>