Hi James,
it is strange, I successfully built Gmsh on my Mac this morning, and the three nightly builds (Win, Mac, Lin) went fine.
Can you try it again with the latest nightly sources ?
Regards,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
WWW: http://hpc.montefiore.ulg.ac.be/
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On 16/09/10 20:09, James O'Beirne wrote:
Hello,
I would like to patch gmsh in order to output multiple ``layers'' of ghost
nodes when partitioning.
I work on a finite-volume solver called FiPy (http://www.ctcms.nist.gov/fipy/).
FiPy has been built to dovetail with
Gmsh in a few regards, one of which is mesh partitioning. We have been using
gmsh-2.5.0-svn to output partitioned meshes
with ghost-node information, which we then read back into FiPy for use within
our system.
This has all been working fine and dandy, but FiPy users often want to solve
fourth-order equations like Cahn-Hilliard.
Obviously, we'd like to support parallel solving for these problems and thus we
need to partition meshes accordingly.
The problem is that gmsh only currently outputs one layer of ghost nodes and a
higher-order problem like Cahn Hilliard
requires two layers of ghost nodes to work properly in parallel.
I've taken a look at the Gmsh source, and I think I can patch the
PartitionMesh(GModel *const model,
meshPartitionOptions &options) function within ``Mesh/meshPartition.cpp'' to
support multiple layers of ghost nodes. It
looks straightforward (perhaps deceptively so).
Unfortunately, I am unable to build the nightly source. I get the follow error
during make:
[ 21%] Building CXX object CMakeFiles/gmsh.dir/Solver/elasticityTerm.cpp.o
[ 21%] Building CXX object CMakeFiles/gmsh.dir/Solver/elasticitySolver.cpp.o
In file included from
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:8:
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.h:82:
error: ‘lua_State’ has not been declared
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.h:84:
error: ‘lua_State’ has not been declared
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:265:
error: ‘lua_State’ has not been declared
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:
In member function ‘void
elasticitySolver::addDirichletBCLua(int, int, int, std::string, int*)’:
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:268:
error: expected type-specifier
before ‘simpleFunctionLua’
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:268:
error: cannot convert ‘int*’ to
‘simpleFunction<double>*’ in assignment
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:268:
error: expected `;' before
‘simpleFunctionLua’
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:
At global scope:
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:295:
error: ‘lua_State’ has not been declared
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:
In member function ‘void
elasticitySolver::addNeumannBCLua(int, int, std::string, int*)’:
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:298:
error: expected type-specifier
before ‘simpleFunctionLua’
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:298:
error: cannot convert ‘int*’ to
‘simpleFunction<SVector3>*’ in assignment
/users/obeirne/gmsh/gmsh-2.5.0-svn-20100615-source/Solver/elasticitySolver.cpp:298:
error: expected `;' before
‘simpleFunctionLua’
make[2]: *** [CMakeFiles/gmsh.dir/Solver/elasticitySolver.cpp.o] Error 1
make[1]: *** [CMakeFiles/gmsh.dir/all] Error 2
make: *** [all] Error 2
If anyone can provide any insight on what's going on with the nightly source,
that would be welcome. Also, if anyone can
comment on patching for multiple layers of ghost nodes, I would really
appreciate it.
James
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