dolfin team mailing list archive

[mspieg <mspieg@xxxxxxxxxxxxxxxxx>]

   Hi Jesper,

 I used to have similar issues with the hypre libraries on the mac.   
I'm just guessing,   but it looks like you can't find a dynamic  
library for the mtl libraries. (I've seen similar issues with other  
libraries).  If you're not using the mtl libraries you might want to  
remove them from the dolfin build (reading ahead, there appear to be  
various issues with mtl, I just use PETSc)...Alternatively, you might  
want to find the specific .dylib (libmtl.dylib ?) and add its  
location to you DYLD_LIBRARY_PATH (or sometimes, I just create a new  
pkgconfig file that points to the appropriate library and include  
that in the dolfin.pc file...not sure if that will fix the python  
problem however).

Not sure this is enormously useful, but let me know
marc

On Sep 21, 2009, at 8:58 AM, Jesper Carlsson wrote:

> Hi,
>
> After doing an installation from Dorsal I cannot get any Python  
> examples to work on my Mac.
> Below is an example of what happens when I'm trying to plot. The  
> same error occurs whenever I run python code. Any ideas on how to  
> fix this?
>
> Best regards,
> Jesper
>
> Plotting u0 (coefficient 0), press 'q' to continue...
> Traceback (most recent call last):
>   File "/Users/jesper/FEniCS/build/bin/viper", line 200, in <module>
>     _newmain()
>   File "/Users/jesper/FEniCS/build/bin/viper", line 195, in _newmain
>     p = __main(infile, lutfile, mode)
>   File "/Users/jesper/FEniCS/build/bin/viper", line 130, in __main
>     return _plot_mesh(infile, lutfile, mode)
>   File "/Users/jesper/FEniCS/build/bin/viper", line 100, in _plot_mesh
>     import dolfin
>   File "/Users/jesper/FEniCS/build/lib/python2.5/site-packages/ 
> dolfin/__init__.py", line 11, in <module>
>     import cpp
>   File "/Users/jesper/FEniCS/build/lib/python2.5/site-packages/ 
> dolfin/cpp.py", line 31, in <module>
>     import _cpp
> ImportError: dlopen(/Users/jesper/FEniCS/build/lib/python2.5/site- 
> packages/dolfin/_cpp.so, 2): Symbol not found:  
> __ZN3mtl6vector8num_rowsIdNS0_10parametersINS_3tag9col_majorENS0_9non_ 
> fixed9dimensionELb0ELb0EEEEENS0_12dense_vectorIT_T0_E9size_typeERKSB_
>   Referenced from: /Users/jesper/FEniCS/build/lib/libdolfin.dylib
>   Expected in: dynamic lookup
>
> *** Warning: Unable to plot.
>
>
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----------------------------------------------------
Marc Spiegelman
Lamont-Doherty Earth Observatory
Dept. of Applied Physics/Applied Math
Columbia University
http://www.ldeo.columbia.edu/~mspieg
tel: 845 704 2323 (SkypeIn)
----------------------------------------------------