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Date: Wed, 3 Oct 2012 14:44:58 +0300
From: Milen Rangelov <gat3way@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: GPL license is not free at all

Hello,

>
> Aren't Portable OpenCL and/or libclc ( http://libclc.llvm.org/ ) enough
> for this?
>
> > And even the driver itself is proprietary.
>
>
Nope, its just the compiler. clover aims to provide a complete opencl stack
(runtime+compiler), but it's very limited and very buggy. There are just
several simple opencl example successfully tested with it, most attempts to
run any kernel just fail. Besides you'd have to pull and build latest code
from some cryptic git repos which is not useful to the common user at all.
It is also very slow and it has a lot of restrictions (like you can't
utilize more than one GPU device for example).



> Aren't Gallium3D/clover or pscnv enough?


Except that drivers are buggy and Gallium3D does not support newer hardware
like GCN at all. AFAIK there is no even proper fan control/thermal
monitoring with opensource drivers. This is a quite basic thing that would
prevent people from using the opensource drivers for any GPGPU work, even
if the opencl stack worked (and it is almost unusable at the moment).

Regards,
Milen

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