[Libclc-dev] Beignet wants to apply libclc

[Tom Stellard]

On Tue, Sep 16, 2014 at 10:01:29AM -0400, Erik Schnetter wrote:
> He Junyan
> 
> The pocl project <http://pocl.sourceforge.net/> also contains an
> implementation of the OpenCL run-time library, and I was similarly
> hoping that we could join forces with libclc at some point.
>

This would be great if we could do this.

> Compared to libclc, pocl should have more functionality, but the math
> functions are optimized for speed instead of accuracy.
> 

I'm not sure pocl has more functionality than libclc when it comes to
GPUs.  pocl uses __builtin functions for a lot of the math intrinsics which
expand to libm calls, but libm is not available on GPUs.

-Tom
> -erik
> 
> 
> On Tue, Sep 16, 2014 at 9:26 AM, He Junyan <junyan.he at inbox.com> wrote:
> > hi,
> >
> > I am a developer of Intel's open source CL stack, which name is Beignet.
> > We used to include all the CL built-ins in one huge header file and
> > compile it as a PCH.
> > We find some disadvantages of that manner and switched to the same
> > manner as libclc recently. We now have a internal lib, which play the
> > same role as the libclc, and we are attempting to apply the libclc to
> > replace it in the near future.
> > But I find some problems when I try to integrate the libclc:
> > 1. There is no support for Image related functions in it now. Is that on
> > your plan?
> > 2. I find it is not compatible with OpenCL1.2, which Beignet must
> > support, are you going to implement it?
> > 3. Because beignet as a backend does not completely follow the PTX or
> > NVPTX framework, it has a lot of internal implementations for the
> > builtin functions. We may need to add a lot of files for it, is that
> > acceptable?
> >
> >
> > Thanks
> >
> >
> >
> >
> > _______________________________________________
> > Libclc-dev mailing list
> > Libclc-dev at pcc.me.uk
> > http://www.pcc.me.uk/cgi-bin/mailman/listinfo/libclc-dev
> 
> 
> 
> -- 
> Erik Schnetter <schnetter at cct.lsu.edu>
> http://www.perimeterinstitute.ca/personal/eschnetter/
> 
> _______________________________________________
> Libclc-dev mailing list
> Libclc-dev at pcc.me.uk
> http://www.pcc.me.uk/cgi-bin/mailman/listinfo/libclc-dev