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 -- Anders
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