cpugpgpugpulinuxopencl
I want to execute OpenCL code on a PC which doesn't have a graphics card, nor any other hardware component which is able to execute OpenCL. Is it possible compile my OpenCL code in a way that it can be executed on the CPU in Linux? Or is it possible to simulate a GPU environment on the CPU?
Note: It's about testing whether the code works as expected, not about performance.
GPU stress tests are generally designed to attempt to overheat the GPU. Depending on the particular test, this might or might not use the entire video memory or check its integrity at some point.
Video Memory stress Test is specifically designed for this purpose, and it's quite similar to MemTest86+. You can test the memory using DirectX, CUDA or OpenGL.
The downloadable zip contains VMT (for Windows) and VMTCE (Clean Environment, bootable ISO). There's also a floppy version.
As far as I can tell, its caused by the installation of Catalyst drivers (e.g. atiumdag 9.2.0.0 via Windows Update).
This deploys a service 'AMD External Events Utility' set to start automatically.
When the PC next reboots it does something which causes cause the IGP OpenGL driver to fail to load.
You should be able to prove this / make a working system as follows:
clinfo.exeAlthough I just disabled automatic updates, installed Catalyst then immediately disabled the service.
Unfortunately while updating to the latest Intel drivers seems to be ok, updating Catalyst to later drivers triggers the the service again.
[Edit]
Have posted these details on the AMD forum, hopefully can find out a bit more about the cause, and how to resolve without a reinstall. I've managed to get my main system to go from not-working back to working but I can't rememeber exactly what I did.
Now that I've got one system running Catalyst 13.1 and the Intel beta driver the performance seems to be actually worth bothing with; LuxMark Sala scores were:
Best Answer
This looks like what you need, although you probably need to recompile, and the SDK linked from there appears specific to Intel CPUs; this link to AMD's documentation appears to describe the equivalent for AMD CPUs.