Hi, everyone:
I am new to the python numpy and f2py. I really need help on
compiling FORTRAN module using f2py. I have been searched internet
without any success. Here is my setup: I have a Ubuntu 10.04 LTS with
python 2.6, numpy 1.3.0 and f2py 2 (installed from ubuntu) and gfortran
compiler 4.4. I have a simple Fortran subroutine (in
CSM_CH01_P1_1a_F.f95 file) as shown below:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!
subroutine sim_model_1(ts, n, a)
!
!f2py integer, intent(in) :: ts, n
!f2py real,dimension(n), intent(inout) :: a
implicit none
integer :: t, m, i
real :: ep, dm
!
m=n/2;
call init_random_seed()
do
if(t > ts) exit
call randperm(n,a)
call random_number(ep)
do i=1,n,2
dm=a(i)+a(i+1)
a(i)=ep*dm
a(i+1)=(1-ep)*dm
end do
t = t + 1
end do
return
end subroutine sim_model_1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I use f2py -m sim_model_1 -h sim_model_1.pyf CSM_CH01_P1_1a_F.f95 to
generate signature file which is OK as shown below:
===================================================
! -*- f90 -*-
! Note: the context of this file is case sensitive.
python module sim_model_1 ! in
interface ! in :sim_model_1
subroutine sim_model_1(ts,n,a) ! in
:sim_model_1:CSM_CH01_P1_1a_F.f95
integer intent(in) :: ts
integer optional,intent(in),check(len(a)>=n),depend(a) ::
n=len(a)
real dimension(n),intent(inout) :: a
end subroutine sim_model_1
end interface
end python module sim_model_1
! This file was auto-generated with f2py (version:2).
! See http://cens.ioc.ee/projects/f2py2e
===================================================
However, when I try to make the module, the compilation failed as if
f2py does not pass the signature file to the compiler. The screen
printout during compilation as shown below:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
f2py -c --fcompiler=gnu95 sim_model_1.pyf CSM_CH
<> f2py -c --fcompiler=gnu95 sim_model_1.pyf
CSM_CH0 1_P1_1a_F.f95
running build
running config_cc
unifing config_cc, config, build_clib, build_ext, build commands
--compiler options
running config_fc
unifing config_fc, config, build_clib, build_ext, build commands
--fcompiler options
running build_src
building extension "sim_model_1" sources
creating /tmp/tmp6MXJY3
creating /tmp/tmp6MXJY3/src.linux-x86_64-2.6
f2py options: []
f2py: sim_model_1.pyf
Reading fortran codes...
Reading file 'sim_model_1.pyf' (format:free)
Post-processing...
Block: sim_model_1
Block: sim_model_1
Post-processing (stage 2)...
Building modules...
Building module "sim_model_1"...
Constructing wrapper function "sim_model_1"...
sim_model_1(ts,a,[n])
Wrote C/API module "sim_model_1" to file
"/tmp/tmp6MXJY3/src.linux-x86_64-2.6/sim_model_1module.c"
adding '/tmp/tmp6MXJY3/src.linux-x86_64-2.6/fortranobject.c' to sources.
adding '/tmp/tmp6MXJY3/src.linux-x86_64-2.6' to include_dirs.
copying /usr/lib/python2.6/dist-packages/numpy/f2py/src/fortranobject.c
-> /tmp/tmp6MXJY3/src.linux-x86_64-2.6
copying /usr/lib/python2.6/dist-packages/numpy/f2py/src/fortranobject.h
-> /tmp/tmp6MXJY3/src.linux-x86_64-2.6
running build_ext
customize UnixCCompiler
customize UnixCCompiler using build_ext
customize Gnu95FCompiler
Found executable /usr/bin/gfortran
customize Gnu95FCompiler using build_ext
building 'sim_model_1' extension
compiling C sources
C compiler: gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2
-Wall -Wstrict-prototypes -fPIC
creating /tmp/tmp6MXJY3/tmp
creating /tmp/tmp6MXJY3/tmp/tmp6MXJY3
creating /tmp/tmp6MXJY3/tmp/tmp6MXJY3/src.linux-x86_64-2.6
compile options: '-I/tmp/tmp6MXJY3/src.linux-x86_64-2.6
-I/usr/lib/python2.6/dist-packages/numpy/core/include
-I/usr/include/python2.6 -c'
gcc: /tmp/tmp6MXJY3/src.linux-x86_64-2.6/fortranobject.c
gcc: /tmp/tmp6MXJY3/src.linux-x86_64-2.6/sim_model_1module.c
compiling Fortran sources
Fortran f77 compiler: /usr/bin/gfortran -Wall -ffixed-form
-fno-second-underscore -fPIC -O3 -funroll-loops
Fortran f90 compiler: /usr/bin/gfortran -Wall -fno-second-underscore
-fPIC -O3 -funroll-loops
Fortran fix compiler: /usr/bin/gfortran -Wall -ffixed-form
-fno-second-underscore -Wall -fno-second-underscore -fPIC -O3 -funroll-loops
compile options: '-I/tmp/tmp6MXJY3/src.linux-x86_64-2.6
-I/usr/lib/python2.6/dist-packages/numpy/core/include
-I/usr/include/python2.6 -c'
gfortran:f90: CSM_CH01_P1_1a_F.f95
CSM_CH01_P1_1a_F.f95:29.7:
a(i)=ep*dm
1
Error: 'a' at (1) is not a variable
CSM_CH01_P1_1a_F.f95:30.7:
a(i+1)=(1-ep)*dm
1
Error: 'a' at (1) is not a variable
CSM_CH01_P1_1a_F.f95:9.25:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'ts' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:9.28:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'n' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:9.31:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'a' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:28.15:
dm=a(i)+a(i+1)
1
Error: Function 'a' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:29.7:
a(i)=ep*dm
1
Error: 'a' at (1) is not a variable
CSM_CH01_P1_1a_F.f95:30.7:
a(i+1)=(1-ep)*dm
1
Error: 'a' at (1) is not a variable
CSM_CH01_P1_1a_F.f95:9.25:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'ts' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:9.28:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'n' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:9.31:
subroutine sim_model_1(ts, n, a)
1
Error: Symbol 'a' at (1) has no IMPLICIT type
CSM_CH01_P1_1a_F.f95:28.15:
dm=a(i)+a(i+1)
1
Error: Function 'a' at (1) has no IMPLICIT type
error: Command "/usr/bin/gfortran -Wall -fno-second-underscore -fPIC -O3
-funroll-loops -I/tmp/tmp6MXJY3/src.linux-x86_64-2.6
-I/usr/lib/python2.6/dist-packages/numpy/core/include
-I/usr/include/python2.6 -c -c CSM_CH01_P1_1a_F.f95 -o
/tmp/tmp6MXJY3/CSM_CH01_P1_1a_F.o" failed with exit status 1
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
It looks like the two f2py directive declaration cause the problem. Any
suggestion?
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