PyOpenCL December 2009

pyopencl@tiker.net

7 participants
5 discussions

Re: [PyOpenCL] How do I turn on the atomics extensions ?

by Andreas Klöckner

On Dienstag 15 Dezember 2009, Michael Rule wrote: > cool, thanks. Is there documentation somewhere that indicated that? Not really. Just searching around. > I still > get an error which I do not fully understand when I try to use the atomic > operation. No idea, sorry. Andreas

10 years, 10 months

pyopencl installation problem on ubuntu 9.04

by jmoorkan＠uci.edu

Hello, I have been unable to install PyOpenCL on my machine. Any help will be really appreciated.. Details of my machine : Python 2.6.2, Boost = 1.41.0, gcc = 4.3.3, ubuntu_64 - 9.0.4, NVIDIA GTX-280 with CUDA 2.3 and latest drivers. I execute the following command for installation... *>> python configure.py --boost-inc-dir=/usr/local/include/boost/ --boost-lib-dir=/usr/local/lib --cl-inc-dir=/usr/include --cl-lib-dir=/usr/lib --cl-libname=OpenCL * I get the following error... *Building a Distribute egg in /home/jayram/Project/pyopencl Traceback (most recent call last): File "setup.py", line 142, in <module> scripts = scripts, File "/usr/lib/python2.6/distutils/**core.py", line 113, in setup _setup_distribution = dist = klass(attrs) File "/tmp/tmpDODqQ1/distribute-0.**6.4/setuptools/dist.py", line 224, in __init__ _Distribution.__init__(self,**attrs) File "/usr/lib/python2.6/distutils/**dist.py", line 270, in __init__ self.finalize_options() File "/tmp/tmpDODqQ1/distribute-0.**6.4/setuptools/dist.py", line 257, in finalize_options ep.load()(self, ep.name, value) File "/tmp/tmpDODqQ1/distribute-0.**6.4/pkg_resources.py", line 1922, in load raise ImportError("%r has no %r attribute" % (entry,attr)) ImportError: <module 'setuptools.dist' from '/tmp/tmpDODqQ1/distribute-0.**6.4/setuptools/dist.py'> has no 'check_packages' attribute /home/jayram/Project/pyopencl/**setuptools-0.6c9-py2.6.egg-**info already exists Traceback (most recent call last): File "configure.py", line 3, in <module> from aksetup_helper import configure_frontend File "/home/jayram/Project/**pyopencl/aksetup_helper.py", line 3, in <module> distribute_setup.use_**setuptools() File "/home/jayram/Project/**pyopencl/distribute_setup.py", line 139, in use_setuptools return _do_download(version, download_base, to_dir, download_delay) File "/home/jayram/Project/**pyopencl/distribute_setup.py", line 120, in _do_download egg = _build_egg(tarball, to_dir) File "/home/jayram/Project/**pyopencl/distribute_setup.py", line 112, in _build_egg raise IOError('Could not build the egg.') IOError: Could not build the egg. * Regards, Jay

10 years, 10 months

How do I turn on the atomics extensions ?

by Michael Rule

I am having trouble finding documentation on this matter. All other aspects of PyOpenCL appear functional. --mrule

10 years, 10 months

Compiling and installing on Ubuntu 9.10

by M.W.

Hi, I was trying to compile and run pyopencl 0.91.04 on Ubuntu 9.10 with ATI Stream beta4 as OpenCL library. I managed to adjust the generic instructions on the wiki (posted it there today) to the ubuntu locations. It seemed to me that "make" and "make install" worked well, but when I tried using pyopencl, it was not found. I noticed, that pyopencl is copied to the wrong folder (for ubuntu): wrong: /usr/local/lib/python2.6/dist-packages correct: /usr/lib/python2.6/dist-packages I copied it to the correct location and it didn't solve the problem. My next guess is that the error message: /usr/lib/python2.6/distutils/dist.py:266: UserWarning: Unknown distribution option: 'install_requires' warnings.warn(msg) from "make" and "make install" might actually be important. Is it and if so, how do I fix it? Also, how many files are to be generated by compiling? Only five end up in the pyopencl folder: _cl.so, __init__.py, __init__.pyc, version.py, version.pyc and one in the folder above: pyopencl-0.91.4.egg-info. Many regards, Malte

10 years, 10 months

Possible nitpick with benchmark-all.py

by Keith R. Brafford

In the benchmark-all.py program, it seems that since the inner loop in the normal CPU example is over range(1000) : for i in range(1000): * for j in range(1000): * c_result[i] = a[i] + b[i] c_result[i] = c_result[i] * (a[i] + b[i]) c_result[i] = c_result[i] * (a[i] / 2.0) .... that the loop that's running inside the kernel should be* <= 1000* instead of *< 1000*, or perhaps loop should start at zero: prg = cl.Program(ctx, """ __kernel void sum(__global const float *a, __global const float *b, __global float *c) { int loop; int gid = get_global_id(0); * /* for(loop=1; loop<1000;loop++) */ for (loop = 0; loop < 1000; loop++) * { c[gid] = a[gid] + b[gid]; c[gid] = c[gid] * (a[gid] + b[gid]); c[gid] = c[gid] * (a[gid] / 2.0); } } """).build() Is this observation correct? Or am I still missing something with how these threads work? (I am new to the OpenCL programming model). --Keith Brafford

10 years, 10 months

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

PyOpenCL December 2009