dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

On 06/06/11 22:42, Johan Hake wrote:
> Hello!
> 
> I have just tried to compile DOFLIN on a CentOS5.5 (RHEL5) server, and it is 
> almost there. However I get these warnings, which becomes errors:
> 
> FiniteElement.h
> ---------------
> cc1plus: warnings being treated as errors                                                                                                                    
> /home/hake/local/src/dolfin/dolfin/fem/FiniteElement.h:35: warning: ‘class 
> dolfin::FiniteElement’ has virtual functions but non-virtual destructor
> 
> OpenMpAssemble.cpp
> ------------------
> cc1plus: warnings being treated as errors                                                                                                                    
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
> function ‘static void 
> dolfin::OpenMpAssembler::assemble_cells(dolfin::GenericTensor&, const 
> dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
> std::vector<double, std::allocator<double> >*)’:
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:177: warning: 
> iteration variable ‘cell_index’ is unsigned
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
> function ‘static void 
> dolfin::OpenMpAssembler::assemble_cells_and_exterior_facets(dolfin::GenericTensor&, 
> const dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
> std::vector<double, std::allocator<double> >*)’:
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:295: warning: 
> iteration variable ‘cell_index’ is unsigned
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
> function ‘static void 
> dolfin::OpenMpAssembler::assemble_interior_facets(dolfin::GenericTensor&, 
> const dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
> std::vector<double, std::allocator<double> >*)’:
> /home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:454: warning: 
> iteration variable ‘facet_index’ is unsigned
> 
> The first one is easy to fix, but I wonder why the compiler has start 
> complaining about that now. The other warning is just weird. Since when is it 
> not good practice to iterate over an unsigned variable. And why is it not 
> complaining elsewhere? Something to do with openmp? Not sure which version of 
> openmp it is on the server...
> 
> The version of g++ is 4.1.2.
>

Older versions of OpenMP do not support loops over unsigned int.

Is there a reason that you're looking at CentOS - I gave up with 5.5 a
long time ago. If you want something based of RHEL 6, try Scientific Linux,

    http://www.scientificlinux.org/

Garth

> Johan
> 
> 
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