Re: [sage-support] gsl in sage outside of notebook
On Thu, Sep 15, 2011 at 3:24 PM, Rajeev Singh rajs2...@gmail.com wrote:
On Thu, Sep 15, 2011 at 12:07 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Wed, Sep 14, 2011 at 2:31 AM, Rajeev Singh rajs2...@gmail.com wrote:
Hi,
The following examples compiles from the notebook
%cython
cimport sage.gsl.ode
import sage.gsl.ode
include 'gsl.pxi'
cdef class van_der_pol(sage.gsl.ode.ode_system):
cdef double beta
def __cinit__(self, double beta=1.0):
self.beta = beta
cdef int c_f(self,double t, double *y,double *dydt):
dydt[0]=y[1]
dydt[1]=-y[0]-self.beta*y[1]*(y[0]*y[0]-1)
return GSL_SUCCESS
cdef int c_j(self, double t,double *y,double *dfdy,double *dfdt):
dfdy[0]=0
dfdy[1]=1.0
dfdy[2]=-2.0*10*y[0]*y[1]-1.0
dfdy[3]=-10*(y[0]*y[0]-1.0)
dfdt[0]=0
dfdt[1]=0
return GSL_SUCCESS
However if I put it in a file vander.pyx (say) and use the following
setup.py -
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
ext = Extension(vander, [vander.pyx],
include_dirs = ['/home/rajeev/bin/sage/devel/sage-main/sage/gsl/'])
setup(ext_modules=[ext],
cmdclass = {'build_ext': build_ext})
I get the following error -
cdef class van_der_pol(sage.gsl.ode.ode_system):
^
vander.pyx:10:5: 'ode_system' is not declared
I guess the problem is with the setup.py. Can someone tell me how to do
this?
IIRC, the notebook %cython creates a setup.py--you could just look at
that. Chances are your Extension object is missing include dirs and
libraries.
-Robert
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Hi,
The present script takes a pyx file as input and outputs a c, o and so
file in the same directory. The so can now be imported in a sage
program. I have already checked it and its seems to be working fine. I
did look at the commands generated by setup.py file to write this
script.
Rajeev
Hi,
There is a better (safer I guess) way of doing the task using
something called cython_create_local_so. The following command will do
the job -
sage -c from sage.all import cython_create_local_so;
cython_create_local_so('_laplace.pyx')
Rajeev
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Re: [sage-support] gsl in sage outside of notebook
On Wed, Sep 14, 2011 at 2:31 AM, Rajeev Singh rajs2...@gmail.com wrote:
Hi,
The following examples compiles from the notebook
%cython
cimport sage.gsl.ode
import sage.gsl.ode
include 'gsl.pxi'
cdef class van_der_pol(sage.gsl.ode.ode_system):
cdef double beta
def __cinit__(self, double beta=1.0):
self.beta = beta
cdef int c_f(self,double t, double *y,double *dydt):
dydt[0]=y[1]
dydt[1]=-y[0]-self.beta*y[1]*(y[0]*y[0]-1)
return GSL_SUCCESS
cdef int c_j(self, double t,double *y,double *dfdy,double *dfdt):
dfdy[0]=0
dfdy[1]=1.0
dfdy[2]=-2.0*10*y[0]*y[1]-1.0
dfdy[3]=-10*(y[0]*y[0]-1.0)
dfdt[0]=0
dfdt[1]=0
return GSL_SUCCESS
However if I put it in a file vander.pyx (say) and use the following setup.py
-
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
ext = Extension(vander, [vander.pyx],
include_dirs = ['/home/rajeev/bin/sage/devel/sage-main/sage/gsl/'])
setup(ext_modules=[ext],
cmdclass = {'build_ext': build_ext})
I get the following error -
cdef class van_der_pol(sage.gsl.ode.ode_system):
^
vander.pyx:10:5: 'ode_system' is not declared
I guess the problem is with the setup.py. Can someone tell me how to do this?
IIRC, the notebook %cython creates a setup.py--you could just look at
that. Chances are your Extension object is missing include dirs and
libraries.
-Robert
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URL: http://www.sagemath.org
Re: [sage-support] gsl in sage outside of notebook
On Thu, Sep 15, 2011 at 12:07 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Wed, Sep 14, 2011 at 2:31 AM, Rajeev Singh rajs2...@gmail.com wrote:
Hi,
The following examples compiles from the notebook
%cython
cimport sage.gsl.ode
import sage.gsl.ode
include 'gsl.pxi'
cdef class van_der_pol(sage.gsl.ode.ode_system):
cdef double beta
def __cinit__(self, double beta=1.0):
self.beta = beta
cdef int c_f(self,double t, double *y,double *dydt):
dydt[0]=y[1]
dydt[1]=-y[0]-self.beta*y[1]*(y[0]*y[0]-1)
return GSL_SUCCESS
cdef int c_j(self, double t,double *y,double *dfdy,double *dfdt):
dfdy[0]=0
dfdy[1]=1.0
dfdy[2]=-2.0*10*y[0]*y[1]-1.0
dfdy[3]=-10*(y[0]*y[0]-1.0)
dfdt[0]=0
dfdt[1]=0
return GSL_SUCCESS
However if I put it in a file vander.pyx (say) and use the following
setup.py -
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
ext = Extension(vander, [vander.pyx],
include_dirs = ['/home/rajeev/bin/sage/devel/sage-main/sage/gsl/'])
setup(ext_modules=[ext],
cmdclass = {'build_ext': build_ext})
I get the following error -
cdef class van_der_pol(sage.gsl.ode.ode_system):
^
vander.pyx:10:5: 'ode_system' is not declared
I guess the problem is with the setup.py. Can someone tell me how to do this?
IIRC, the notebook %cython creates a setup.py--you could just look at
that. Chances are your Extension object is missing include dirs and
libraries.
-Robert
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URL: http://www.sagemath.org
Hi,
The present script takes a pyx file as input and outputs a c, o and so
file in the same directory. The so can now be imported in a sage
program. I have already checked it and its seems to be working fine. I
did look at the commands generated by setup.py file to write this
script.
Rajeev
--
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to
sage-support+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/sage-support
URL: http://www.sagemath.org
[sage-support] gsl in sage outside of notebook
Hi,
The following examples compiles from the notebook
%cython
cimport sage.gsl.ode
import sage.gsl.ode
include 'gsl.pxi'
cdef class van_der_pol(sage.gsl.ode.ode_system):
cdef double beta
def __cinit__(self, double beta=1.0):
self.beta = beta
cdef int c_f(self,double t, double *y,double *dydt):
dydt[0]=y[1]
dydt[1]=-y[0]-self.beta*y[1]*(y[0]*y[0]-1)
return GSL_SUCCESS
cdef int c_j(self, double t,double *y,double *dfdy,double *dfdt):
dfdy[0]=0
dfdy[1]=1.0
dfdy[2]=-2.0*10*y[0]*y[1]-1.0
dfdy[3]=-10*(y[0]*y[0]-1.0)
dfdt[0]=0
dfdt[1]=0
return GSL_SUCCESS
However if I put it in a file vander.pyx (say) and use the following setup.py -
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
ext = Extension(vander, [vander.pyx],
include_dirs = ['/home/rajeev/bin/sage/devel/sage-main/sage/gsl/'])
setup(ext_modules=[ext],
cmdclass = {'build_ext': build_ext})
I get the following error -
cdef class van_der_pol(sage.gsl.ode.ode_system):
^
vander.pyx:10:5: 'ode_system' is not declared
I guess the problem is with the setup.py. Can someone tell me how to do this?
Thanks in advance.
Rajeev
--
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