On Mon, Feb 20, 2012 at 5:58 PM, Mohammad Mirzadeh <mirzadeh at gmail.com>wrote:
> Just if wondering what the actual code is, here's the bit causing the > trouble: > > AOApplicationToPetsc(ao, ghostNodes.size(), (int*)ghostNodes); > VecCreateGhost(comm, localNodes.size(), PETSC_DECIDE, ghostNodes.size(), > (int*)ghostNodes, &v); > AOPetscToApplication(ao, ghostNodes.size(), (int*)ghostNodes); > > when the code is in serial, ghostNodes.size() = 0 and (int*)ghostNodes = > NULL. > So you are asking us to give up checking for NULL if the size is 0? Matt > On Mon, Feb 20, 2012 at 3:54 PM, Mohammad Mirzadeh <mirzadeh at > gmail.com>wrote: > >> Sure, Jed. My bad. Here's the whole message when the code is run in >> _serial_: >> >> [0]PETSC ERROR: --------------------- Error Message >> ------------------------------------ >> [0]PETSC ERROR: Invalid pointer! >> [0]PETSC ERROR: Null Pointer: Parameter # 3! >> [0]PETSC ERROR: >> ------------------------------------------------------------------------ >> [0]PETSC ERROR: Petsc Release Version 3.2.0, Patch 6, Wed Jan 11 09:28:45 >> CST 2012 >> [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: ./petsc on a arch-linu named mohammad-laptop by mohammad >> Mon Feb 20 15:52:25 2012 >> [0]PETSC ERROR: Libraries linked from >> /home/mohammad/soft/petsc-3.2-p6/arch-linux2-cxx-debug/lib >> [0]PETSC ERROR: Configure run at Thu Feb 16 02:16:40 2012 >> [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ >> --with-fc=gfortran --with-clanguage=cxx --download-f-blas-lapack=1 >> --download-mpich=1 --download-hypre=1 --download-ml=1 >> --with-parmetis-include=/home/mohammad/soft/parmetis/include >> --with-parmetis-lib="-L/home/mohammad/soft/parmetis/lib -lparmetis -lmetis" >> --download-superlu_dist=1 >> [0]PETSC ERROR: >> ------------------------------------------------------------------------ >> [0]PETSC ERROR: AOApplicationToPetsc() line 249 in >> /home/mohammad/soft/petsc-3.2-p6/src/dm/ao/interface/ao.c >> [0]PETSC ERROR: --------------------- Error Message >> ------------------------------------ >> [0]PETSC ERROR: Invalid pointer! >> [0]PETSC ERROR: Null Pointer: Parameter # 3! >> [0]PETSC ERROR: >> ------------------------------------------------------------------------ >> [0]PETSC ERROR: Petsc Release Version 3.2.0, Patch 6, Wed Jan 11 09:28:45 >> CST 2012 >> [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: ./petsc on a arch-linu named mohammad-laptop by mohammad >> Mon Feb 20 15:52:25 2012 >> [0]PETSC ERROR: Libraries linked from >> /home/mohammad/soft/petsc-3.2-p6/arch-linux2-cxx-debug/lib >> [0]PETSC ERROR: Configure run at Thu Feb 16 02:16:40 2012 >> [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ >> --with-fc=gfortran --with-clanguage=cxx --download-f-blas-lapack=1 >> --download-mpich=1 --download-hypre=1 --download-ml=1 >> --with-parmetis-include=/home/mohammad/soft/parmetis/include >> --with-parmetis-lib="-L/home/mohammad/soft/parmetis/lib -lparmetis -lmetis" >> --download-superlu_dist=1 >> [0]PETSC ERROR: >> ------------------------------------------------------------------------ >> [0]PETSC ERROR: AOPetscToApplication() line 210 in >> /home/mohammad/soft/petsc-3.2-p6/src/dm/ao/interface/ao.c >> >> >> It seems to complain about the 3rd parameter of AOApplicationToPetsc() >> and AOPetscToApplication(). VecCreateGhost, on the other hand, is fine. >> >> On Mon, Feb 20, 2012 at 3:47 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: >> >>> On Mon, Feb 20, 2012 at 17:25, Mohammad Mirzadeh <mirzadeh at >>> gmail.com>wrote: >>> >>>> Hi, >>>> >>>> Is there an internal check to see if the 'ghost' pointer in >>>> VecCreateGhost() is NULL ? This can happen, for example, if the code is run >>>> in serial and the there are no ghost points (hence n_ghost = 0 and ghost = >>>> NULL(implementation dependent of course) ). AOXXXXToYYYY functions seem to >>>> crash if the corresponding pointer is NULL. >>>> >>> >>> Always send the whole error message. >>> >> >> > -- 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120220/4386e88f/attachment.htm>
