Playing with GPU and python.
- Ubuntu 11.04
- ATI 5470 graphic
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Install the ATI driver under Linux.
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Install OpenCL dependencies
$ apt-get install freeglut3-dev python-numpy-
Install OpenCL, packages amd-app-2.4 and amd-app-dev. (last known link is http://forums.amd.com/forum/messageview.cfm?catid=390&threadid=125792&STARTPAGE=1&FTVAR_FORUMVIEWTMP=Linear)
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Do a dryrun of OpenCL
$ cat "#include <CL/opencl.h>" > testcl.c
$ gcc testcl.c -o prog -lOpenCL-
Download pyopencl. (last known link http://pypi.python.org/pypi/pyopencl)
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Unpack and install
$ python setup.py build
$ python setup.py install ####Part 1##### Contains a code that sums 2 vectors using GPU.
####Part 2##### Finds the prime numbers until N.
(I know there are better algorithms than the one I have implemented, but the porpuse is to test the GPU.)
####Vector Sum##### Execution time of test without OpenCL: 11.731222868 seconds
Execution time of test with OpenCL: 0.521452188492 seconds
####Prime numbers##### N=100
Execution time of test without OpenCL: 0.000123023986816 seconds
Execution time of test with OpenCL: 0.601119995117 seconds
N=1000
Execution time of test without OpenCL: 0.00573706626892 seconds
Execution time of test with OpenCL: 0.579922914505 seconds
N=10000
Execution time of test without OpenCL: 42.7467110157 seconds
Execution time of test with OpenCL: 5.0943210125 seconds
This code has not been updates since 2013 and it is less likely that will be again.
Copyright Stefan Fodor @ 2013
This program is free under the terms of GNU GPL licence.
Feel free to copy, modify and redistribute.