Re: [f2py] Problem compiling with F2PY using intel Fortran 64-bit compiler on OS X 10.6

Xavier Barthelemy <[email protected]> Mon, 14 Feb 2011 13:24:42 +1100
Newsgroups gmane.comp.python.f2py.user
Message-ID <[email protected]>
Hello everyone!!

Actually I did have the same kind of problem too.
I solved it by using in my .bashrc the script given by the intel
compilwer install. The line I add is for 64bits version:

source /opt/intel/composerxe-2011.0.084/bin/compilervars.sh intel64

It defines all the path and variables related to the intel compiler.

It worked for me

Cheers all
Xavier

2011/2/14 Youngung Jeong <[email protected]>:
> Congratulates. It does not mean your previous message was a spam. I guess
> any discussion is meaningful in this group and that is what this group is
> for.
>
> Youngung Jeong
>
> Graduate student
> Materials Mechanics Laboratory
> Graduate Institute of Ferrous Technology
> Pohang University of Science and Technology
> San 31 Hyoja-Dong, Nam-Gu, Pohang
> Gyeongbuk, 790--784, Korea
> phone: +82 (0)54-279-9217
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>
>
> On Mon, Feb 14, 2011 at 11:01 AM, Ravi Kanda <[email protected]> wrote:
>>
>> I found the problem (a pretty silly one!).  My $DYLD_LIBRARY_PATH did not
>> include the $INTEL_ROOT library paths.  After adding these paths, I can now
>> import 'fib1.so' compiled using the 64-bit intel fortran compiler without
>> any error messages.
>>
>> Apologies for the spam.   Just wanted to post in case anyone else runs
>> into this issue.
>>
>> Regards,
>> Ravi.
>> ---------------------------------------
>>
>> On 2/11/11 5:22 PM, Ravi Kanda wrote:
>>
>> Hi,
>>
>> I have been using F2PY for over 2 years now, primarily on Linux (32-bit).
>> I recently moved my python computations to a MacPro workstation (12-core,
>> Intel Mac, 64-bit, with OS X 10.6.6; Python 2.6.1, Numpy
>> 2.0.0.dev-799179d).  Just to be safe, I am doing some basic tests
>> (compilers, speed, etc) before moving on to compiling more complex f90
>> modules. I am able to compile the default test fortran scripts (Fib1_Quick,
>> Fib1_Smart: from the F2PY website) without any problems using gfortran
>> (4.2.1). However, with the intel 64-bit compiler, IFORT, I get a "Library
>> not loaded ... Image not found" error message in the Python interpreter when
>> I try to import the shared library 'fib1.so' created using f2py.  I want to
>> use the Intel compiler for optimized performance of my f90 codes (I found
>> f2py/intel-compiled codes to be much faster when working on Linux).  The
>> source, wrap-script, and diagnostics are in the attached ZIP file.
>>
>> ----------------------------
>> INTEL COMPILER ISSUE DETAILS:
>> ----------------------------
>> I installed intel's 64-bit Fortran compiler (ifort 12.0.0 20101006 for OS
>> X) in INTEL_ROOT='/opt/intel'.  My $PATH contains $INTEL_ROOT/bin &
>> $LD_LIBRARY_PATH contains $INTEL_ROOT/lib.  I can compile native f90
>> programs from the Terminal.  Also, I store all my '*.so' libraries under:
>> $USER_ROOT/dv/products/modules, which is in $PYTHONPATH.  When I compile
>> Fib1_Quick example using the ifort compiler, I find that 'fib1.so' is
>> generated in the current working directory, and copied to the above modules
>> directory as well (see attached wrap script and logfile) - and this works
>> for the gfortran generated 'fib1.so' library.  I also don't see any
>> error/warning messages during the wrapping process (see logfile).  Now, when
>> I try to import the intel 'fib1' from the python interpreter, I obtain the
>> following error message:
>> ---------------------------------------------------
>> >>> import fib1
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>> ImportError: dlopen(/Users/rkanda/dv/products/modules/fib1.so, 2): Library
>> not loaded: libifport.dylib
>>   Referenced from: /Users/rkanda/dv/products/modules/fib1.so
>>   Reason: image not found
>> ---------------------------------------------------
>>
>> 'libifport.dylib' does exist under $INTEL_ROOT/lib, and hence, visible via
>> my $LD_LIBRARY_PATH.  I tried using f2py with and without the '-L$LIB_DIR'
>> as well as '-l$lib1 -l$lib2 ...' options but each time, I get an identical
>> error message in the python interpreter that the library was not found.
>> Looking online, I found suggestions for using 'otool' on the library to
>> determine its dependencies.  This output is also included in the
>> attachment.  However, from the 'otool' log, I can't figure out where python
>> is looking for the '*.dylib' files.  In desparation, I created soft links to
>> the intel libraries in the above modules directory, which is in my
>> $PTYTHONPATH, as well as in the system Python site-packages (where I instal
>> all my public and private Python packages).  That does not work either.
>>
>> I am probably doing something really stupid, but at a loss as to what.  I
>> will really appreciate any suggestions/ideas.
>>
>> Thanks in advance.
>>
>> Regards,
>> Ravi Kanda.
>> ------------------
>>
>>
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>>
>> --
>> ---------------------------------------------------------------------
>> Ravi Kanda
>> PhD, California Institute of Technology, 2010
>> Currently, Post-Doctoral Fellow
>> Department of Geological Sciences
>> Global Change Research Center
>> National Taiwan University
>> Taipei, 10617
>> Taiwan.
>>
>> Web Page: http://www.gps.caltech.edu/~rkanda
>>
>> ----------------------------------------------------------------------
>>
>> For a human being, the unexamined life is not worth living - SOCRATES
>>
>> ----------------------------------------------------------------------
>>
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