[Bf-committers] CUDA compiler open-sourced

[Brecht Van Lommel]

Here are the details for the AMD issue. It has been reported to AMD,
and they fixed the first issue we had, but we still can't compile the
full kernel.
http://wiki.blender.org/index.php/Dev:2.6/Source/Render/Cycles/OpenCL

For Cycles, I don't really care about OpenCL vs. CUDA languages
really, the code is such that it can compile for both and no specific
CUDA feature is needed. The difference is in the compiler
implementations.

Brecht.

On Thu, Dec 15, 2011 at 10:16 AM, Erwin Coumans <erwin.coumans at gmail.com> wrote:
> AMD open sourced their OpenCL GPU LLVM backend a few days earlier,
> http://lists.cs.uiuc.edu/pipermail/llvmdev/2011-December/046136.html
>
> No matter how hard NVIDIA pushes their CUDA tech,
> I think it is unlikely that Intel, AMD and others will dropping
> support for the open standard OpenCL in favor of CUDA.
>
> By the way, I hear comments by Brecht that AMD OpenCL is lacking
> for Cycles. Where are the details on that?
>
> Thanks!
> Erwin
>
>
>
> On 14 December 2011 23:54, Reuben Martin <reuben.m at gmail.com> wrote:
>
>> The devil is in the details. Nobody really knows yet, as they have only
>> made
>> the announcement. I don't think you can actually get ahold of anything yet.
>> And they haven't indicated what licenese it is to be released under.
>>
>> -Reuben
>>
>> On Thursday, December 15, 2011 12:47:32 AM Davis Sorenson wrote:
>> > To quote from the linked article:
>> > "NVIDIA today announced that *it will provide the source code* for the
>> new
>> > NVIDIA® CUDA® LLVM-based compiler *to academic researchers and
>> > software-tool vendors*, enabling them to more easily add GPU support for
>> > more programming languages and support CUDA applications on alternative
>> > processor architectures."
>> >
>> > While It does mention opening (In the title) and source code, the wording
>> > is a bit strange. Do they mean that it will be "Shared-source" like some
>> > Microsoft products, or do they mean that it will be under an open-source
>> > license? Just thought I would point this out. Either way this is good
>> news,
>> > but if it's real open-source it's much better news.
>> >
>> > Davis
>> >
>> > On Thu, Dec 15, 2011 at 12:42 AM, Reuben Martin <reuben.m at gmail.com>
>> wrote:
>> > > With all the headaches of trying to make Cycles work properly with
>> > > OpenCL, I
>> > > thought it was interesting that Nvidia has now open sourced with CUDA
>> > > compiler
>> > > as well as the documentation of the intermediate representation.
>> > >
>> > >
>> > >
>> http://pressroom.nvidia.com/easyir/customrel.do?easyirid=A0D622CE9F579F0
>> > > 9&version=live&releasejsp=release_157&xhtml=true&prid=831864
>> > >
>> > > In theory, this could mean that CUDA could eventually be ported to
>> > > non-nvidia
>> > > architectures.
>> > >
>> > >
>> > >
>> > > -Reuben
>>
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