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Date:      Tue, 01 May 2012 19:51:39 +0200
From:      "O. Hartmann" <ohartman@zedat.fu-berlin.de>
To:        freebsd-performance@freebsd.org,  Current FreeBSD <freebsd-current@freebsd.org>
Subject:   LLVM compiler backend for AMD Radeon HD r600 - the potential solution for OpenCL in FreeBSD?
Message-ID:  <4FA022AB.5090706@zedat.fu-berlin.de>

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I read this week this article on Phoronix:

http://www.phoronix.com/scan.php?page=3Darticle&item=3Damd_r600g_llvm&num=
=3D1

Well, it looks promising to me in terms of having also OpenCL
capabilities for GPGPU, but as the report says, the code is not finished
and still in a very preliminary stage.

What is the opinion of the FreeBSD people about this approach? Does the
Gallium3D/Mesa driver with LLVM have the ability to bring
professionality of HPC/GPGPU to FreeBSD? Or is it a dead end?

I'm not familiar with the details of what's necessary for compiling
executables for a specific GPU but the compiler, as far as I know,
especially the code generator, needs to know about chip's internal and
so I fear it's like nVidia's chips a black box.

Oliver


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