I have added error checking and clearer documentation on PetscViewerASCIIRead() with https://bitbucket.org/petsc/petsc/pull-requests/1514/add-error-checking-if-petscviewerasciiread/diff
Thanks for the report Barry > On Apr 4, 2019, at 3:15 PM, Yuyun Yang via petsc-users > <petsc-users@mcs.anl.gov> wrote: > > Hello team, > > I’m trying to use PetscViewerASCIIRead() to read in a single interger/scalar > value from an input file. It works for one processor. However, when running > on multiple processors, I’m getting the below error: > > [1]PETSC ERROR: Invalid argument > [1]PETSC ERROR: Insufficient data, read only 0 < 1 items > [1]PETSC ERROR: #1 PetscViewerASCIIRead() line 1054 in > /usr/local/CLAB-2/petsc-3.6/src/sys/classes/viewer/impls/ascii/filev.c > > Is there something wrong with how I’m implementing this, or ASCIIRead does > not work with multiple processors? > > Thanks, > Yuyun
