[petsc-users] PetscBinaryRead fails

[Matthew Knepley]

It sounds like you opened the file for writing.

   Matt

On Mon, Feb 18, 2019 at 9:08 PM Yuyun Yang via petsc-users <
petsc-users at mcs.anl.gov> wrote:

> Hello,
>
>
>
> I am writing a very simple function just to read in a single value from an
> input file (which also just contains one single scalar value). Using
> PetscBinaryRead(fd, &value, 1, PETSC_SCALAR) gives me the following error.
> Could you help me figure out why?
>
>
>
> [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
>
> [0]PETSC ERROR: Read from file failed
>
> [0]PETSC ERROR: Read past end of file
>
> [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, unknown
>
> [0]PETSC ERROR: ./output on a arch-linux2-c-debug named
> DESKTOP-02K82L1.stanford.edu by yyy910805 Mon Feb 18 17:58:30 2019
>
> [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++
> --with-shared-libraries=1 --download-hdf5 --download-metis
> --download-parmetis --download-hypre --download-superlu --download-mumps
> --download-scalapack --download-mpich
> --download-mpich-configure-arguments="--enable-error-messages=all
> --enable-g"
>
> [0]PETSC ERROR: #1 PetscBinaryRead() line 276 in
> /home/yyy910805/petsc/src/sys/fileio/sysio.c
>
> 0.000000
>
>
>
> Thanks a lot!
>
> Yuyun
>


-- 
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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