Anders Logg wrote: > On Fri, Sep 25, 2009 at 09:03:20AM +0200, Harish Narayanan wrote: >> Has anyone seen the following problem when trying to run python demos? >> The C++ demos work, both in serial and in parallel. When I try to run >> python demos (either in serial or in parallel), I receive the following >> (on a hardy machine): >> >> >> $ python demo.py >> >> Traceback (most recent call last): >> File "demo.py", line 16, in <module> >> V = VectorFunctionSpace(mesh, "CG", 1) >> File >> "/home/harish/Work/FEniCS/build/lib/python2.5/site-packages/dolfin/functionspace.py", >> line 271, in __init__ >> spaces = dim*[FunctionSpace(mesh, family, degree, restriction)] >> File >> "/home/harish/Work/FEniCS/build/lib/python2.5/site-packages/dolfin/functionspace.py", >> line 194, in __init__ >> FunctionSpaceBase.__init__(self, mesh, element) >> File >> "/home/harish/Work/FEniCS/build/lib/python2.5/site-packages/dolfin/functionspace.py", >> line 43, in __init__ >> ufc_element, ufc_dofmap = jit(self._element) >> File >> "/home/harish/Work/FEniCS/build/lib/python2.5/site-packages/dolfin/jit.py", >> line 43, in mpi_jit >> if MPI.num_processes() == 1: >> TypeError: num_processes() takes exactly 1 argument (0 given) > > Mikael Mortensen had the same problem yesterday. > > What is MPI on your system? Is it the DOLFIN MPI class or something > else? > > In [1]: from dolfin import * > > In [2]: print MPI > ------> print(MPI) > <class 'dolfin.cpp.MPI'> > > In [3]: print MPI.__doc__ > ------> print(MPI.__doc__ ) > > This class provides utility functions for easy communcation with > MPI. > > C++ includes: MPI.h > > > In [4]: print MPI.num_processes > ------> print(MPI.num_processes) > <function num_processes at 0x1ec8758> > > In [5]: print MPI.num_processes.__doc__ > ------> print(MPI.num_processes.__doc__) > num_processes() -> uint >
Here is what I see (It's the same as your output.): In [1]: from dolfin import * In [2]: print MPI <class 'dolfin.cpp.MPI'> In [3]: print MPI.__doc__ This class provides utility functions for easy communcation with MPI. C++ includes: MPI.h In [4]: print MPI.num_processes <function num_processes at 0x1108c08> In [5]: print MPI.num_processes.__doc__ num_processes() -> uint _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@fenics.org http://www.fenics.org/mailman/listinfo/dolfin-dev