Hi everybody,
I'm working on some functions to calculate the response of some physics models. Initially, I coded with C, nevertheless, I had to connect the physics toolbox to some graphics tools; for that reason, I decided to use python; actually python is controlling the high level interface but I decided to keep the physics core with C(performance); I'm using SWIG to connect my python high level interface with the C physics. I use numpy on python to the define the inputs and outputs for my physics toolbox. To improve the calculation time I use the meschach vectors and matrices library.
This is my setup.py
from distutils.core import setup, Extension
import numpy
try: numpy_include = numpy.get_include() except AttributeError: numpy_include = numpy.get_numpy_include()
_cmd_wrapper = Extension("_cmd_wrapper", ["cmd_source1.c","cmd_source2.c",...], include_dirs = [numpy_include,'../mesch12b'], extra_objects=['../mesch12b/meschach.a'], libraries=['m'], )
setup (name = "cmd_wrapper", description = "CMD wrapper", version = "0.1", author = "juandhv", py_modules = ["cmd_wrapper"], ext_modules = [_cmd_wrapper] )
When I try to import the result module, import cmd_wrapper, I got this error:
import _cmd_wrapper ImportError: /ModCMD/_cmd_wrapper.so: failed to map segment from shared object: Cannot allocate memory
There are 3 things that I'd like to know:
- Is this the correct way to include the meschach library ? extra_objects=['../mesch12b/meschach.a']
- Is there any problem if Meschach use malloc, calloc and realloc?
- Is there any problem if I declare some variables as static? e.g. static MAT *M1;
I'm running this on a virtual machine over ubuntu with 512MB of RAM, I know that's not too much, but I think is enough for a module (My module is not bigger than numpy!!). I can import my module on MAC OS X with more RAM (even on linux with 1GB) but when I tried to import the module with the complete sotware (others high level tools like graphics and GUI) I get the same problem
Any help I'll be thankful (sorry for any english mistake)
Juan David