john-users - Re: 'close' to getting opencl working

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Date: Sat, 27 Apr 2013 11:08:25 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: 'close' to getting opencl working

The sample OpenCL program you mentioned merely probed the device, just like --list=opencl-devices. So maybe you should try some short hello-world opencl program that actually runs a simple kernel.

I have seen bleeding list devices but not being able to use them, in bleeding. That was when my GPU driver had stuck (needing a reboot). I think unstable currently is better in that regard (may emit some useful error message).

magnum


On 27 Apr, 2013, at 5:03 , jfoug@....net wrote:

> I am doing CPU opencl.  I do not have a GPU.  I am not worried about performance.  I just want to be able to compile, to do testing on/off.
> 
> It may well be that VB does not support this.   There are a few settings on the outside of VB, on how the VM is setup, PAE/NX etc.  I do have that selected.  I will look for other settings, and see if I can find current posts listing VB can not do OpenCL at all (hope not).
> 
> Jim.
> 
> ---- Rich Rumble <richrumble@...il.com> wrote: 
>> On Fri, Apr 26, 2013 at 10:07 PM, <jfoug@....net> wrote:
>> 
>>> I have hit magnum up with this (offlist), and am not getting things to
>>> work.  I thought I would bring this to the entire list, and beg for
>>> knowledge ;)
>>> 
>>> I have a VirutualBox VM with 12.10 ubuntu x64.  I have given it 6 cores,
>>> 100%, with 2gb memory (I could up that if needed). I just installed the
>>> latest CPU OpenCL version, from the intel site.  I have gotten a test box
>>> OpenCL program working (was in my original post to magnum.  I can not get
>>> any tests or runs to see any OpenCL devices. But the -list=opencl-devices
>>> does show it is installed.  Things built/linked perfectly.
>>> 
>> VMware supports CUDA/OpenCL, I'd wager that VB might not?
>> http://blogs.vmware.com/performance/2011/10/gpgpu-computing-in-a-vm.html
>> 
>> An article from 2011 says VB doesn't (didn't then)
>> http://www.phoronix.com/scan.php?page=article&item=virtualbox_4_opengl&num=1
>> Using Gallium3D would also make it feasible to also open up other forms of
>> acceleration to guests such as for OpenCL, OpenVG, OpenGL ES, and Xorg
>> EXA/XvMC. VirtualBox does provide 2D acceleration support when using their
>> driver. The VirtualBox Direct3D driver is also limited to Direct3D 8/9
>> while there is a Gallium3D Direct3D 10/11 state
>> tracker<http://www.phoronix.com/vr.php?view=15292>in existence.
>> 
>> Just a guess, but maybe others are using VirtualBox and OpenCL, I can't
>> seem to find it in my search however...
>> -rich
> 
>