dolfin team mailing list archive

[Johannes Ring <johannr@xxxxxxxxx>]

On Tue, Jan 24, 2012 at 2:13 PM, Johan Hake <johan.hake@xxxxxxxxx> wrote:
>> I successfully got Dorsal to build 'petsc' on OS X yesterday, although
>> I had to install OpenMPI from MacPorts, which resulted in a lot of
>> other packages that had to be rebuilt. This was all successful and
>> DOLFIN built fine, however the tests failed to run on the buildbot:
>>
>>
>> http://fenicsproject.org:8090/builders/dolfin-osx-10.6/builds/79/steps/dol
>> fin%20check/logs/stdio
>>
>> I found that the problem lies in
>> site-packages/dolfin/importhandler/dynamicloadmpi.py, where we force
>> load libmpi.0.dylib, the system installed OpenMPI library, and not the
>> one installed by MacPorts, which is libmpi.1.dylib. There are symlinks
>> to these in /usr/lib and /opt/local/lib, respectively, so in theory we
>> should be able to replace libmpi.0.dylib with libmpi.dylib in
>> dynamicloadmpi.py. However, it turns out that the stuff in
>> dynamicloadmpi.py is not needed on OS X. In fact, it has never been
>> used on Lion since Lion doesn't come with any OpenMPI compilers and
>> there is therefore no libmpi.0.dylib available (only libmpi.1.dylib
>> from MacPorts).
>>
>> I have tested this on both of the OS X buildbots and I suggest we
>> replace the code in dynamicloadmpi.py with this:
>>
>>   import ctypes
>>   ctypes.CDLL('libmpi.so', ctypes.RTLD_GLOBAL)
>>
>> Doing so should result in one more green buildbot (osx-10.6). Any
>> objections before I push?
>
> Sounds good. Maybe you can add some:
>
>  # NOTE: Bla bla
>
> about this to that file?

Done.

Johannes