undefined symbol error
by Chris
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.
--
View this message in context: http://pycuda.2962900.n2.nabble.com/undefined-symbol-error-tp7575758.html
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2 years, 1 month
Re: [PyCUDA] pipwin error with runpy.py
by Andreas Kloeckner
"Slein, Ryan" <ryan.slein(a)gatech.edu> writes:
> I've spent a few days digging through forums without any luck so I figured I'd post to the mailing list as per request of the forums. Any advice would be greatly appreciated. I am new to python and cuda, and entirely self-taught, so sorry in advanced for any gaps of knowledge on my part.
>
> I am trying to install pycuda but am getting hung up on one of the last install steps, pipwin install pycuda. I keep getting an error in runpy.py when trying to install the software through anaconda. BeautifulSoup tells me it is an lxml file error (see attached cmd) in anaconda\lib\runpy.py for both Python/Anaconda 2 and Python/Anaconda 3 (see attached code: Line 184 for anaconda3 and Line 174 for anaconda2). I've tried to do what BeautifulSoup stated but haven't succeeded, hopefully the solution is obvious to someone with much more experience than myself.
>
> I've also tried building from means other than conda with no luck. I
> am open to try other build packages if you don't know of any conda
> work arounds. Some computer specs: Windows 10 Pro V1607 OS Build
> 14393.693 & Command Prompt Version 10.0.14393. Please let me know if
> you need any further information of my system.
The message you show appears to be a non-fatal warning and unrelated to
PyCUDA, which does not use BeatifulSoup. If you show a relevant error
message (bonus points for text format), we may be in a better position
to help.
Andreas
2 years, 3 months
pipwin error with runpy.py
by Slein, Ryan
Hey everyone,
I've spent a few days digging through forums without any luck so I figured I'd post to the mailing list as per request of the forums. Any advice would be greatly appreciated. I am new to python and cuda, and entirely self-taught, so sorry in advanced for any gaps of knowledge on my part.
I am trying to install pycuda but am getting hung up on one of the last install steps, pipwin install pycuda. I keep getting an error in runpy.py when trying to install the software through anaconda. BeautifulSoup tells me it is an lxml file error (see attached cmd) in anaconda\lib\runpy.py for both Python/Anaconda 2 and Python/Anaconda 3 (see attached code: Line 184 for anaconda3 and Line 174 for anaconda2). I've tried to do what BeautifulSoup stated but haven't succeeded, hopefully the solution is obvious to someone with much more experience than myself.
I've also tried building from means other than conda with no luck. I am open to try other build packages if you don't know of any conda work arounds. Some computer specs: Windows 10 Pro V1607 OS Build 14393.693 & Command Prompt Version 10.0.14393. Please let me know if you need any further information of my system.
Best,
Ryan
2 years, 3 months
Autoinit failing after driver update
by Josh Willis
Hi,
After updating the NVIDIA driver from 367.48 to 375.26, I can no longer get PyCUDA to run. I have tried a fresh build of PyCUDA-2016.1.2, and the configure/make/make install steps seem to proceed fine. However if I do:
$ python
Python 2.7.5 (default, Nov 3 2016, 22:05:29)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pycuda
>>> import pycuda.autoinit
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/jwillis/envs/er10/lib/python2.7/site-packages/pycuda-2016.1.2-py2.7-linux-x86_64.egg/pycuda/autoinit.py", line 5, in <module>
cuda.init()
pycuda._driver.Error: cuInit failed: unknown error
>>>
If I look to make sure that kernel modules are loaded, I see the following (though I’m not sure what I *should* see, this just seemed to be a common source of this kind of problem after an upgrade):
$ lsmod | grep nvi
nvidia 11944366 0
i2c_core 40756 7 ast,drm,igb,i2c_i801,drm_kms_helper,i2c_algo_bit,nvidia
Does anyone have any suggestions on what to try next in debugging the source of this error? I can compile a “hello world” kernel directly with nvcc and run it with no problem.
Thanks,
Josh
2 years, 3 months