Chris <uchyt...@uw.edu> writes: > Hey Andreas, > I am having a similar issue that Kambiz Tavabi was having. Here is the error > (I have pycuda on anaconda2 just like Kambiz) > > File "main_class.py", line 17, in <module> > import pycuda.gl as cuda_gl > File > "/home/uchytilc/anaconda2/lib/python2.7/site-packages/pycuda-2016.1.2-py2.7-linux-x86_64.egg/pycuda/gl/__init__.py", > line 2, in <module> > import pycuda._driver as _drv > ImportError: > /home/uchytilc/anaconda2/lib/python2.7/site-packages/pycuda-2016.1.2-py2.7-linux-x86_64.egg/pycuda/_driver.so: > undefined symbol: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev > > The weird thing is that I have some files that are having this problem and > some that are not, with identical import statements. > > import sys > > from OpenGL.GL import * > from OpenGL.GLUT import * > from OpenGL.GLU import * > from OpenGL.GL.ARB.vertex_buffer_object import * > from OpenGL.GL.ARB.pixel_buffer_object import * > > import pycuda.gl as cuda_gl > import pycuda.driver as cuda_driver > > The files that are experiencing this issue are all files that run this > import statement right at the top in the main.py file, the one I initialize > from. The one that doesn't hit this error has the import statements in a > second file that is being imported with an __init__.py file. Not sure if > this is pure coincidence or not but I figured it was worth bringing up.
Sorry for the delay in responding. GCC 5.1 switched its C++ ABI with version 5. I suspect some of the binary packages you have installed are using the old ABI (Anaconda is built on CentOS 6 I believe and would be using the old ABI), while C++ software you built on your machine (PyCUDA) will use the new ABI. See here for more info: https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html Try adding (in PyCUDA's siteconf.py) -D_GLIBCXX_USE_CXX11_ABI=0 to CXXFLAGS. Hope that helps, Andreas _______________________________________________ PyCUDA mailing list PyCUDA@tiker.net https://lists.tiker.net/listinfo/pycuda
