Hi. There seems to be a problem with recent version of F2PY on 64bit (or at least my 64bit) platforms. I'm using the Intel EM64T version of Intel Fortran 9.0. By default, this compiler doesn't work, since distutils don't recognise the EM64T versions of the compiler. After patching numpy/distutils/fcompilers/intel.py as explained in the thread "F2PY stopped working with new scipy", I was able to compile the wrappers, but they don't quite work right.I think the easiest way to explain it is by example. The following code in the file test_data.f90 is being wrapped : MODULE DATA IMPLICIT NONE REAL, DIMENSION(:), ALLOCATABLE :: test_arr CONTAINS SUBROUTINE init() ALLOCATE(test_arr(10)) test_arr=55 END SUBROUTINE init END MODULE DATA using this command: $ f2py --fcompiler=intel -m testmod -c test_data.f90 Using this version of f2py: $ f2py -v 2.46.243_2020 I get the expected output: $ python Python 2.4.2 (#2, Sep 30 2005, 22:19:27) [GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2 Type "help", "copyright", "credits" or "license" for more information.
import testmod testmod.data.init() testmod.data.test_arr array([ 55., 55., 55., 55., 55., 55., 55., 55., 55., 55.],'f')
If, instead, I use this version of f2py: $ f2py -v 2_2383 I get: $ python Python 2.4.2 (#2, Sep 30 2005, 22:19:27) [GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2 Type "help", "copyright", "credits" or "license" for more information.
import testmod testmod.data.init() testmod.data.test_arr Traceback (most recent call last): File "<stdin>", line 1, in ? ValueError: negative dimensions are not allowed
I also checked on a very similarly setup 32-bit machine. I first ran into a problem compiling: $ f2py --fcompiler=intel -m testmod -c test_data.f90 ....... ifort:f90: test_data.f90 ifort: Command line warning: extension 'M' not supported ignored in option '-x' ifort: Command line error: Unrecognized keyword 'SSE' for option '-arch' ifort: Command line warning: extension 'M' not supported ignored in option '-x' ifort: Command line error: Unrecognized keyword 'SSE' for option '-arch' error: Command "/usr/local/bin/ifort -FR -KPIC -cm -O3 -unroll -tpp6 -xM -arch SSE -I/tmp/tmp1fRBC7/src -I/usr/lib/python2.4/site-packages/numpy/core/include -I/usr/include/python2.4 -c -c test_data.f90 -o /tmp/tmp1fRBC7/test_data.o -module /tmp/tmp1fRBC7/ -I/tmp/tmp1fRBC7/" failed with exit status 1 I fixed this by commenting out the offending compiler options in intel.py. After this, the wrapped code works both with the old and new f2py. I must add that the 32-bit system is running python 2.4.3 instead of 2.4.2. Don't know if this would make any difference. Thanks Neilen -- you know its kind of tragic we live in the new world but we've lost the magic -- Battery 9 (www.battery9.co.za)