Matt, The code is actually for 2d.
> On May 20, 2019, at 12:54 PM, Matthew Knepley via petsc-users > <petsc-users@mcs.anl.gov> wrote: > > On Sun, May 19, 2019 at 9:22 AM 陳鳴諭 via petsc-users <petsc-users@mcs.anl.gov > <mailto:petsc-users@mcs.anl.gov>> wrote: > I have problem with generating simplicies mesh. > I do as the description in DMPlexCreateBoxmesh says, but still meet error. > > Stefano is right that you will need a mesh generator for a simplex mesh. > However, you are asking for > a 1D mesh for which there are no generators. Since in 1D simplces and tensor > cells are the same, > just change it to tensor and it will work. > > Thanks, > > Matt > > The following is the error message: > [0]PETSC ERROR: --------------------- Error Message > -------------------------------------------------------------- > [0]PETSC ERROR: Argument out of range > [0]PETSC ERROR: No grid generator of dimension 1 registered > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html > <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting. > [0]PETSC ERROR: Petsc Development GIT revision: v3.11.1-723-g96d64d1 GIT > Date: 2019-05-15 13:23:17 +0000 > [0]PETSC ERROR: ./membrane on a arch-linux2-c-debug named > simon-System-Product-Name by simon Sun May 19 20:54:54 2019 > [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ > --with-fc=gfortran --download-mpich --download-fblaslapack > [0]PETSC ERROR: #1 DMPlexGenerate() line 181 in > /home/simon/petsc/src/dm/impls/plex/plexgenerate.c > [0]PETSC ERROR: #2 DMPlexCreateBoxMesh_Simplex_Internal() line 536 in > /home/simon/petsc/src/dm/impls/plex/plexcreate.c > [0]PETSC ERROR: #3 DMPlexCreateBoxMesh() line 1071 in > /home/simon/petsc/src/dm/impls/plex/plexcreate.c > [0]PETSC ERROR: #4 main() line 54 in /home/simon/Downloads/membrane.c > [0]PETSC ERROR: PETSc Option Table entries: > [0]PETSC ERROR: -dm_view > [0]PETSC ERROR: ----------------End of Error Message -------send entire error > message to petsc-ma...@mcs.anl.gov---------- > application called MPI_Abort(MPI_COMM_WORLD, 63) - process 0 > [unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=63 > : > system msg for write_line failure : Bad file descriptor > > > > I need some help about this, please. > > Simon > > > -- > 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/>