Hi, 
I get the following errors with my code while writing the equations systems to 
file in parallel simulations 


   Error writing sidesets
   Error writing element connectivities


The trace follows,
0: libMesh::print_trace(std::ostream&)
1: libMesh::ExodusII_IO_Helper::write_sidesets(libMesh::MeshBase const&)
2: libMesh::ExodusII_IO::write_nodal_data(std::string const&, 
std::vector<double, std::allocator<double> > const&, std::vector<std::string, 
std::allocator<std::string> > const&)
0: libMesh::print_trace(std::ostream&)
1: libMesh::ExodusII_IO_Helper::write_elements(libMesh::MeshBase const&)
2: libMesh::ExodusII_IO::write_nodal_data(std::string const&, 
std::vector<double, std::allocator<double> > const&, std::vector<std::string, 
std::allocator<std::string> > const&)
33: libMesh::MeshOutput<libMesh::MeshBase>::write_equation_systems(std::string 
const&, libMesh::EquationSystems const&, std::set<std::string, 
std::less<std::string>, std::allocator<std::string> > const*)
4: libMesh::MeshOutput<libMesh::MeshBase>::write_equation_systems(std::string 
const&, libMesh::EquationSystems const&, std::set<std::string, 
std::less<std::string>, std::allocator<std::string> > const*)
4: DiffCode::output(int, double const&, double&, bool)
5: DiffCode::run()


This happens only in parallel - and not on single core runs. 
Any idea what is causing the problem? Is there an option better than EXODUS_IO 
for this?
Thanks, 
Subramanya 
                                          
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