AttributeError: 'module' object has no attribute 'adj_variable' on import with Mac OS X + MacPorts

[Jack Hale]

Hi,

I'm trying to compile from source on Mac OS X Mountain Lion using the latest trunk versions of dolfin-adjoint and libadjoint. I am using macports packages and Dolfin 1.1.0 stable which has been compiled using dorsal.

I have tried compiling with both macports GCC 4.7 and Apple's built in clang compiler. I get two successful compiles, but upon import I get the following error:

In [1]: import dolfin_adjoint
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-1-cda565555280> in <module>()
----> 1 import dolfin_adjoint

/Users/jack/Library/Python/2.7/lib/python/site-packages/dolfin_adjoint/__init__.py in <module>()
     22
     23 import options
---> 24 import solving
     25 import assembly
     26 import expressions

/Users/jack/Library/Python/2.7/lib/python/site-packages/dolfin_adjoint/solving.py in <module>()
     24 import expressions
     25 import coeffstore
---> 26 import adjrhs
     27 import adjglobals
     28 import adjlinalg

/Users/jack/Library/Python/2.7/lib/python/site-packages/dolfin_adjoint/adjrhs.py in <module>()
      3 import ufl
      4 import ufl.algorithms
----> 5 import adjglobals
      6 import adjlinalg
      7

/Users/jack/Library/Python/2.7/lib/python/site-packages/dolfin_adjoint/adjglobals.py in <module>()
      5 # Create the adjointer, the central object that records the forward solve
      6 # as it happens.
----> 7 adjointer = libadjoint.Adjointer()
      8
      9 mem_checkpoints = set()

/usr/local/lib/python2.7/site-packages/libadjoint/libadjoint.pyc in __init__(self, adjointer)
    676 def __init__(self, adjointer=None):
    677 self.functions_registered = []
--> 678 self.set_function_apis()
    679
    680 self.equation_timestep = []

/usr/local/lib/python2.7/site-packages/libadjoint/libadjoint.pyc in set_function_apis(self)
    716
    717 def set_function_apis(self):
--> 718 self.block_assembly_type = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.POINTER(clib.adj_variable), ctypes.POINTER(clib.adj_vector), ctypes.c_int, adj_scalar, ctypes.POINTER(None),
    719 ctypes.POINTER(clib.adj_matrix), ctypes.POINTER(clib.adj_vector))
    720 self.block_action_type = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.POINTER(clib.adj_variable), ctypes.POINTER(clib.adj_vector), ctypes.c_int, adj_scalar, clib.adj_vector,

AttributeError: 'module' object has no attribute 'adj_variable'

So there is some problem in ctypes/clib. Any ideas what the problem might be?

[Patrick Farrell (pefarrell)]

Hi Jack,

Yes, libadjoint doesn't compile correctly on OSX; the problem is in the auto-generation of the libadjoint Python bindings. I've been trying to get shell access to an OSX system ever since I became aware of this problem, as that's the only way I'll be able to debug it. Is there any OSX workstation around I could ssh into?

Patrick

[Jack Hale (jack-hale)]

Hi Patrick,

Your welcome to have access to my machine via ssh. Send me the public part of your ssh key I can give you an account. My imperial email is j.hale09@...

No rush in fixing it, I just got bored writing my PhD up today (!) and thought I would give it a go. Pedro and I are planning on doing some work with dolfin_adjoint once I have submitted.

Jack