[f2py] Compiling/linking the Fortran source files manually

Ben Forbes bdforbes at gmail.com
Tue Apr 26 12:29:44 EEST 2011 

I might try it on Linux instead, at least then the toolchains won't be
so painful to use. At the moment I have MinGW, MSys, cygwin all
fighting each other, to the point where "make" has stopped working. My
only real goal is to wrap a series of MKL FFT calls and run it from
Python, which I can do from Linux anyway.

Thanks for your help, I'll post again if I have trouble on Linux.

On Tue, Apr 26, 2011 at 7:22 PM, Pearu Peterson
<pearu.peterson at gmail.com> wrote:
>
>
> On 04/26/2011 12:12 PM, Ben Forbes wrote:
>> I've already modified the preprocessor directives to get the Fortran
>> routines mangled properly. inithelloworld() is already compiled
>> correctly, based on the object dump above. The problem must be the
>> Visual Studio linker doing its own mangling.
>
>> I'm using Enthought, it might be tricky to change my numpy.
>
> Yes, it could.
>
> In past I have used the following approach (no guarantees though):
> 1) rename enthought python folder
> 2) install python and numpy from scratch, you might need to install
> mingw as well as IIRC then enthought keeps mingw in its own directory
> 3) try the example
> 4) remove the installed software from 2)
> 5) rename enthought python folder back
>
>> Could this be one of those situations where GNU + Windows = Fail?
>
> Perhaps, I don't know, may be it is GNU + Intel + Visual = Fail
>
> However note that I am quite ignorant regarding Windows dll issues.
>
> Pearu
>
>> On Tue, Apr 26, 2011 at 7:05 PM, Pearu Peterson
>> <pearu.peterson at gmail.com>  wrote:
>>>
>>>
>>> On 04/26/2011 11:55 AM, Ben Forbes wrote:
>>>> No, I believe there is still a mangling issue. Python gives an error
>>>> along the lines of "can't find inithelloworld()".
>>>
>>> Can you establish what is the corresponding symbol name in the .pyd
>>> file?  Perhaphs one or a combination of the following cpp options
>>>
>>>    -DPREPEND_FORTRAN -DNO_APPEND_FORTRAN -DUPPERCASE_FORTRAN
>>> -DUNDERSCORE_G77
>>>
>>> will help to fix the name mangling issue. These options ought to be
>>> used when compiling the foomodule.c file.
>>>
>>> Also, could you try the example with the latest numpy?
>>>
>>> Pearu
>>>
>>>> On Tue, Apr 26, 2011 at 6:50 PM, Pearu Peterson
>>>> <pearu.peterson at gmail.com>    wrote:
>>>>>
>>>>>
>>>>> On 04/26/2011 11:33 AM, Ben Forbes wrote:
>>>>>> Okay I had copied intel.py in the same directory, so it was loading it twice.
>>>>>>
>>>>>> I changed
>>>>>>
>>>>>> 'linker_so'    : ['<F90>', "-shared"],
>>>>>>
>>>>>> to
>>>>>>
>>>>>> 'linker_so'    : ['<F90>', "/dll"],
>>>>>>
>>>>>> but it's still putting it in the wrong place:
>>>>>>
>>>>>> C:\Program Files (x86)\Intel\Compiler\11.1\067\bin\intel64\ifort.exe
>>>>>> /dll /dll foomodule.o fortranobject.o helloworld.o -LC:\Python27\libs
>>>>>> -LC:\Python27\PCbuild\amd64 -lpython27 /OUT:.\foo.pyd
>>>>>>
>>>>>> The /dll flag needs to be after /link, right at the end. Is this a
>>>>>> flaw with distutils?
>>>>>
>>>>> This is new to me. Can you give a reference for this condition?
>>>>>
>>>>> Note that there are two '/dll' in row, just in case it matters..
>>>>>
>>>>> I don't see any '/link' option in the above command.
>>>>>
>>>>> Finally, when you execute the command above with the right order
>>>>> of all options, will foo.pyd be OK? Can you import it and call it from
>>>>> Python?
>>>>>
>>>>> Pearu
>>>>>
>>>>>>
>>>>>> On Tue, Apr 26, 2011 at 6:26 PM, Ben Forbes<bdforbes at gmail.com>      wrote:
>>>>>>> I'm attempting to implement that, but there's suddenly another problem:
>>>>>>>
>>>>>>> C:\Users\bdforbes\pyfor\simple_f2py>f2py -c -m foo helloworld.f90
>>>>>>> --fcompiler=intelvem
>>>>>>> Forcing DISTUTILS_USE_SDK=1
>>>>>>> Traceback (most recent call last):
>>>>>>>     File "C:\Python27\Scripts\f2py-script.py", line 24, in<module>
>>>>>>>       main()
>>>>>>>     File "C:\Python27\lib\site-packages\numpy\f2py\f2py2e.py", line 561, in main
>>>>>>>       run_compile()
>>>>>>>     File "C:\Python27\lib\site-packages\numpy\f2py\f2py2e.py", line 447,
>>>>>>> in run_compile
>>>>>>>       fcompiler.load_all_fcompiler_classes()
>>>>>>>     File "C:\Python27\lib\site-packages\numpy\distutils\fcompiler\__init__.py",
>>>>>>> line 736, in load_all_fco
>>>>>>> mpiler_classes
>>>>>>>       fcompiler_aliases[alias][1].__name__))
>>>>>>> ValueError: alias 'ifort' defined for both IntelFCompiler and IntelFCompiler
>>>>>>>
>>>>>>> I can't remember what changed to make this happen.
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Apr 26, 2011 at 5:58 PM, Pearu Peterson
>>>>>>> <pearu.peterson at gmail.com>      wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> On 04/26/2011 10:49 AM, Ben Forbes wrote:
>>>>>>>>> Modifying PATH makes it find the 64-bit compiler now. However, I'm
>>>>>>>>> still getting the same issues with the compiler and linker flags:
>>>>>>>>>
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/shared'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/shared'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/LC:\Python27\libs'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option
>>>>>>>>> '/LC:\Python27\PCbuild\amd64'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/lpython27'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/OU'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/OT'
>>>>>>>>> ifort: command line warning #10155: ignoring option '/optimize';
>>>>>>>>> argument required
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/O.'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/O\'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/Of'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/Oo'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/Oo'
>>>>>>>>> ifort: command line warning #10006: ignoring unknown option '/O.'
>>>>>>>>> ifort: command line remark #10010: option '/Op' is deprecated and will
>>>>>>>>> be removed in a future release.
>>>>>>>>> See '/help deprecated'
>>>>>>>>> ifort: command line warning #10148: option '-Oy' not supported
>>>>>>>>
>>>>>>>> They are all warnings and therefore can be ignored... except
>>>>>>>> that '/shared' and '/lpython27' options should be fixed.
>>>>>>>> Consult the compiler help to find out how to properly
>>>>>>>> specify these options and modify intel.py accordingly.
>>>>>>>>
>>>>>>>> HTH,
>>>>>>>> Pearu
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> f2py-users mailing list
>>>>>>>> f2py-users at cens.ioc.ee
>>>>>>>> http://cens.ioc.ee/mailman/listinfo/f2py-users
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Benjamin D. Forbes
>>>>>>> School of Physics
>>>>>>> The University of Melbourne
>>>>>>> Parkville, VIC 3010, Australia
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> f2py-users at cens.ioc.ee
>>>>> http://cens.ioc.ee/mailman/listinfo/f2py-users
>>>>>
>>>>
>>>>
>>>>
>>>
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>>
>>
>>
>
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-- 
Benjamin D. Forbes
School of Physics
The University of Melbourne
Parkville, VIC 3010, Australia

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